CN109188071A - Vehicular power transformer sky, load loss on-site test system and method - Google Patents
Vehicular power transformer sky, load loss on-site test system and method Download PDFInfo
- Publication number
- CN109188071A CN109188071A CN201811229917.3A CN201811229917A CN109188071A CN 109188071 A CN109188071 A CN 109188071A CN 201811229917 A CN201811229917 A CN 201811229917A CN 109188071 A CN109188071 A CN 109188071A
- Authority
- CN
- China
- Prior art keywords
- transformer
- test
- subject
- voltage
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 232
- 238000000034 method Methods 0.000 title claims description 11
- 239000003990 capacitor Substances 0.000 claims abstract description 62
- 238000005259 measurement Methods 0.000 claims abstract description 16
- 238000010998 test method Methods 0.000 claims description 15
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract description 13
- 238000004891 communication Methods 0.000 description 25
- 230000004224 protection Effects 0.000 description 12
- 238000012545 processing Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to technical field of electricity, empty, the load loss on-site test system more specifically to vehicular power transformer, comprising: test macro and the car door wing to be opened/closed open expansion compartment, and the test macro is located at the wing and opens in expansion compartment；The test macro includes: for connecting the test connecting pin of subject transformer, providing the power supply device of test voltage for subject transformer, for obtaining the measuring instrumentss, the measuring and controlling for controlling measuring instrumentss that are tested transformer measurement data, and the compensation capacitor group of capacitive compensation is provided for subject transformer；The power supply device, measuring instrumentss, measuring and controlling and compensation capacitor group are all located on the test circuit where testing connecting pin；The input terminal of the power supply device is connected with the power supply of test site.The present invention can carry out complete on-the-spot test with load for the zero load of large-scale power transformer.
Description
Technical field
The present invention relates to technical field of electricity, load loss scene empty more specifically to vehicular power transformer
Test macro and method.
Background technique
The zero load and the on-the-spot test of load loss to miniature transformer are only supported in the prior art；And in the prior art
When middle progress on-site test, tester needs to transport various testing equipments to scene, then finds region placement at the scene
Testing equipment connects each testing equipment, then carries out the test of transformer.In this way, having the following problems: testing equipment is carried tired
Hardly possible, testing efficiency are low, there is likely to be various security hidden troubles, testers to work during the line of testing equipment
Intensity is big.
Zero load and load loss for large-scale power transformer are tested, and are not supported on-the-spot test in the prior art, are led to
Often only laboratory test can be carried out to high-power transformer or factory is tested, if being once installed in specific power grid environment,
Due to the problems such as needing to move test equipment to scene and being assembled, test cannot achieve.If therefore high-power transformer appearance is different
When the problems such as normal, complete on-the-spot test can not be compared.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the drawbacks of the prior art, providing a kind of vehicular power transformer
Device sky, load loss on-site test system, can be for the unloaded on-the-spot test complete with load progress of large-scale power transformer.
The technical solution adopted by the present invention to solve the technical problems is:
On the one hand, construction vehicular power transformer sky, load loss on-site test system, comprising: test macro and vehicle
The door wing to be opened/closed opens expansion compartment, and the test macro is located at the wing and opens in expansion compartment；
The test macro includes: for connecting the test connecting pin of subject transformer, providing test for subject transformer
The power supply device of voltage, the measuring instrumentss for obtaining subject transformer measurement data, the measurement control for controlling measuring instrumentss
Device processed, and, the compensation capacitor group of capacitive compensation is provided for subject transformer；
The power supply device, measuring instrumentss, measuring and controlling and compensation capacitor group are all located at where test connecting pin
Test circuit on；
The input terminal of the power supply device is connected with the power supply of test site.
Further, the wing opens expansion compartment, comprising: vehicle body frame, the active box being mounted on vehicle body frame
Body, and drive the door expansion or the driving device of closure of active box.
Further, the power supply device includes: variable-frequency power sources, intermediate transformer and filter；
The input terminal of the variable-frequency power sources is the input terminal of power supply device, and the variable-frequency power sources is used for the confession of test site
Electricity is converted to the voltage signal of preset frequency；
The input terminal of the intermediate transformer is connected with the output end of variable-frequency power sources, and the intermediate transformer will be for that will make a reservation for
Voltage needed for the voltage signal of frequency is converted to subject transformer；
The filter is connected between variable-frequency power sources and intermediate transformer, for filtering out the voltage letter other than preset frequency
Number.
In the above-mentioned technical solutions, the measuring instrumentss include: mutual inductor and power analyzer；
The mutual inductor includes: accurate voltage mutual inductor and/or precision current transformer.
Further, the measuring and controlling includes: industrial control computer, power supply device controller and compensating electric capacity
The controller of group；
The industrial control computer, power supply device controller and compensating electric capacity group controller, are connected with each other by bus；
The industrial control computer is connected with measuring instrumentss；
The power supply device controller, the power supply for controlling power supply device export；
The compensating electric capacity group controller, for controlling compensation capacitor group.
Further, the compensation capacitor group includes: three-phase compensation capacitor and single-phase compensation capacitor；
The three-phase compensation capacitor, for providing three-phase compensation when being tested transformer and carrying out load testing；
The single-phase compensation capacitor, for providing single-phase compensation when being tested transformer and carrying out load testing.
Preferably, described device further include: isolating and protecting device；
The isolating and protecting device is located on the test circuit where testing connecting pin, and setting is in subject transformer and measurement
Between instrument.
Preferably, described device further include: for the test assistant subsystem of auxiliary transformer on-the-spot test, for providing
The illumination subsystems of illumination, and, for carrying out the Monitor And Control Subsystem of video monitoring to transformer on-site test.
On the other hand, the test method of vehicular power transformer sky, load loss scene is constructed, which is characterized in that packet
It includes:
For the automatic switching control method of compensation capacitor group；
To the no-load test test method of subject transformer；
To the load test test method of subject transformer.
Further, the automatic switching control method for compensation capacitor group, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer；The basic parameter packet of the subject transformer
It includes: being tested capacity, high pressure and the low-voltage rated voltage of transformer；
According to testing regulations, setting is applied to the voltage and current on subject transformer；
According to the voltage and current being applied on subject transformer, the institute of intermediate transformer and compensation capacitor group is calculated
Gear is needed, and automatic switching gear is carried out by power supply device controller；
The output electric current of intermediate transformer is obtained from precision current transformer；
It will be applied to output electric current, the condenser voltage gear of the electric current on subject transformer, intermediate transformer, by pre-
Determine the capacity that algorithm obtains compensation capacitor group, and capacity described in automatic switching is carried out by compensating electric capacity group controller；
The no-load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer；
According to the basic parameter of subject transformer, by the gear of switch control variable-frequency power sources and intermediate transformer, in quilt
It tries step down side and applies voltage, applied voltage is made to be equal to the voltage rating of subject transformer；
By precision current transformer, accurate voltage mutual inductor and power analyzer, unloaded numerical value is obtained；
The unloaded parameter of subject transformer is calculated by unloaded numerical value；The zero load parameter includes: no-load loss, excitation
Impedance and excitation resistance；
The load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer；
According to the basic parameter of subject transformer, by the gear of switch control variable-frequency power sources and intermediate transformer, in quilt
It tries step down side and applies electric current, applied electric current is made to be equal to the rated current of subject transformer；
By precision current transformer, accurate voltage mutual inductor and power analyzer, load examination numerical value is obtained；
The load parameter of subject transformer is calculated by load examination numerical value；The load parameter includes: short circuit loss, short
Roadlock is anti-, short-circuit resistance and short-circuit voltage.
In the present invention, the test macro is located at the wing and opens in expansion compartment, so that it may by compartment by test macro
It takes to any test site, it is only necessary to connect subject transformer with test connecting pin, so that it may carry out on-the-spot test.Cause
This, avoids to carry the interconnection between each test equipment and test equipment at the scene, thus reduce security risk, and
And also reduce the labor intensity of test site staff.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing:
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the functional block diagram of test macro in the present invention；
Fig. 3 is the side view of vehicle A in the embodiment of the present invention；
Fig. 4 is the top view of vehicle A in the embodiment of the present invention；
Fig. 5 is the side view of vehicle B in the embodiment of the present invention；
Fig. 6 is the top view of vehicle B in the embodiment of the present invention；
Fig. 7 is the schematic diagram of measuring and controlling in the present invention；
Fig. 8 be in the embodiment of the present invention vehicle A and B in the rearview of travel position；
Fig. 9 be in the embodiment of the present invention vehicle A and B in the rearview of working condition；
Specific embodiment
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
A specific embodiment of the invention.
As shown in Fig. 1,2 and 7, vehicular power transformer provided by the invention is empty, load loss on-site test system,
It include: test macro 130 and car door wing unlatching to be opened/closed expansion compartment 110, the test macro 130 is located at the wing and opens exhibition
In opening type carriage 110；
The test macro 130 includes: for connecting the test connecting pin 131 of subject transformer, mentioning for subject transformer
For the power supply device 132 of test voltage, the measuring instrumentss 133 for obtaining subject transformer measurement data and for controlling measurement
The measuring and controlling 134 of instrument 133, and, the compensation capacitor group 310 of capacitive compensation is provided for subject transformer；
The power supply device 132, measuring instrumentss 133 and measuring and controlling 134 and compensation capacitor group 310 are all located at survey
On the test circuit for trying 131 place of connecting pin；
The input terminal of the power supply device 132 is connected with the power supply of test site.
Measuring and controlling 134 is omitted in Fig. 2, as shown in Figure 7, measuring and controlling 134 is and measuring instrumentss 133
Connected.
Since the test equipment in test macro 130 is more, so being difficult to accommodate to a compartment.So in this implementation
In example, the wing is opened there are two expansion compartments 110, respectively the compartment in the compartment of vehicle A and vehicle B.Vehicle A and B are filled respectively
Carry different test equipments.
Test connecting pin 131 is positioned close to the side of active box in the present embodiment, for example, test connecting pin 131
Can have it is multiple, be both provided near multiple active boxes test connecting pin.In this way, not having to after vehicle driving to scene
Itself positional relationship between subject transformer is specially corrected, can simply be connected with subject transformer by cable
It connects.It is reduced as a result, because vehicle intersects again relative to the position inadequate either line of bad caused cable for being tested transformer
Miscellaneous problem, to simplify the line between subject transformer.
In some embodiments, the test connecting pin can be made of one or more connection terminals, these connection terminals
It can orderly be distributed in the same patch panel.
As it can be seen in figures 5 and 6, the compensation capacitor group 310 is located on the test circuit at 131 place of test connecting pin, use
In be tested transformer carry out no load test when capacitive compensation is provided.
Compensation capacitor group 310 is connected in the test circuit, is configured to carrying out no load test to subject transformer
When capacitive compensation is provided.
Compensation capacitor group 310 may include one or more capacitors in the present embodiment.It is carried out in subject transformer empty
When carrying test, the meetings such as the coil of transformer itself are tested so that perception is presented in test circuit, in no increased compensation circuit device
In the case where group, subject transformer can also be tested, but very big reactive power may be generated, to a certain extent
It will increase the power designs requirement of variable-frequency power sources 210 and intermediate transformer 220.It introduces and mends in test circuit in the present embodiment
Capacitor group 310 is repaid, since capacitor is in capacitive, so as to offset the part perception of subject transformer, to reduce test
The reactive power of circuit reduces the power designs requirement of the power supply units such as variable-frequency power sources 210 and intermediate transformer 220, reduces and survey
The whole hardware cost of test system 130.
The wing opens expansion compartment 110, comprising: vehicle body frame, the active box being mounted on vehicle body frame, and
Drive the door expansion or the driving device 120 of closure of active box.
As shown in Fig. 3 to 6, there are two independent compartments 110 for setting in the present embodiment, by the main of test macro 130
Testing equipment is all disposed within the first compartment 110 (vehicle A)；First compartment 110 can be cuboid, and usual three-dimensional is provided with work
Motor-car door.Second compartment 110 is provided with measuring and controlling (vehicle B) in the present embodiment.The measuring and controlling
For the independent weak electricity system of power supply with the test macro 130.Measurement and Control System is arranged on the second compartment 110, one
Aspect can be with safeguard, on the other hand since test macro 130 can be the position where tester, while can also be more preferable
Protection tester personal safety.If second compartment 110 is provided only with control device, second compartment 110
It can be for one to the compartment 110 for being provided with active box.
Each can the wing open expansion compartment 110, comprising: frame body and the movable car door being mounted on the frame body；
Driving device 120 is located in the compartment 110, is sequentially connected with the movable car door, mentions for the movable car door
For relative to the movable driving force of the frame body and providing the movable car door and maintaining the support force opened.
Test macro 130 is located in the compartment 110, and the test macro 130 includes: multiple tests interconnected
Equipment；
If carry out on-the-spot test to subject transformer, the activity car door opening is configured for the test macro 130
It is measured with the subject transformer and the test space is provided.
Test macro 130 can carry out unloaded on-the-spot test and/or load on-the-spot test to transformer at the scene, for example,
The loss of test transformer under no-load condition, test transformer is in the loss etc. being connected under loading condition, so as to reality
The performance test of existing transformer field.
The compartment 110 can be the compartment 110 being fixedly mounted on automobile chassis in the present embodiment, be also possible to activity
Be mounted on the compartment 110 on automobile chassis, if being movably arranged on automobile chassis, can automobile chassis break down when,
The compartment 110 that this includes battery of tests system 130 is transferred on normal automobile chassis by crane etc., so that vehicle-mounted
The on-site test system 130 of transformer can drive into transformer field as scheduled and complete to test.
In the present embodiment, the compartment 110 includes frame body and the movable car door being mounted on frame body.For example, should
Frame body can be the frame of movable car door installation, which can be the box side in composition compartment 110.
As shown in FIG. 8 and 9, in the present embodiment, the box side in the compartment 110 be can be movable.For example, described
Movable car door can include: the side activity car door (flap door 410) of 110 side of compartment, fixing end are connected at the top of the frame body,
Movable end can be rotated around the fixing end.The activity car door further includes the movable car door (clamshell doors 420) of automobile tail.
By the unlatching of movable car door, the test macro 130 being located in the compartment 110 can be made to appear, pass through work
The closing of dynamic cabinet can make hiding for the test macro 130 being located in compartment 110.
After compartment 110 is transported to the scene where subject transformer, the movable car door is opened, so that it may carry out
The line being tested between transformer and test macro 130, measures after line.
In the present embodiment, it why is provided that movable car door on frame body, is on the one hand because by movable car door
Opening and closing, can appear and hide the test macro 130, on the other hand be to provide survey after movable car door opening
The enough test spaces of test system 130, safe distance needed for meeting test.
The test macro 130 includes testing equipment needed for multiple tests, is pre-established between these testing equipments
Connection, is detachably connected for example, being pre-established with, in this way, if when some testing equipment failure, it is easy to disassemble fall failure examination
Equipment is tested, the maintenance or replacement of Test to Failure equipment are carried out.
In some embodiments, the driving device 120 is sequentially connected by transmission device and the movable car door, driving
The driving force that device 120 provides itself is conducted to the movable car door by transmission device, to drive the movable car door
Movement.Shown in Fig. 8 is fluid pressure drive device, and fluid pressure drive device includes hydraulic cylinder, hydraulic station, fluid pressure line etc..
In some embodiments, the driving device 120 uses fluid pressure drive device, and fluid pressure drive device has driving flat
The support force of any one position slow and that unlatching can be rested on for active box.In the present embodiment, control can be passed through
The switch state of hydraulic valve on pipeline, so that fluid pressure drive device provides the support force stable to active box, so that living
Dynamic cabinet rests on any one open position during unlatching.
In some embodiments, travel switch etc. can be set in the driving device 120, can control active box stop
In several predetermined positions, for example, closed position, maximum open position and intermediate open position, if active box is in maximum
Open position, then the active box reaches maximum relative to frame body movement.
In the present embodiment, test macro 130 itself is located in compartment 110, does not need to carry on haulage equipment,
Simplify the carrying of Testing System of Transformer 130.Since test macro 130 is set in advance in compartment 110 and is automatically performed
Connection, in this way, testing efficiency can be promoted without carrying out the connection between testing equipment to transformer testing scene.And one
After denier test macro 130 completes connection, disassembly can not had to, can be used for the on-the-spot test or multiple changes of multiple transformer
The on-the-spot test of depressor.
Further, the power supply device 132 includes: variable-frequency power sources 210 and intermediate transformer 220；
The input terminal of the variable-frequency power sources 210 is the input terminal of power supply device 132, and the variable-frequency power sources 210 will be for that will survey
The power supply at examination scene is converted to the voltage signal of preset frequency；
The input terminal of the intermediate transformer 220 is connected with the output end of variable-frequency power sources 210, the intermediate transformer 220
For voltage needed for the voltage signal of preset frequency is converted to subject transformer.
The power supply device, on the test circuit where the test connecting pin, for passing through the test circuit
Voltage needed for providing test to the subject transformer, i.e., test voltage needed for providing on-the-spot test to subject transformer,
For example, the no load test voltage under light condition is provided to subject transformer, and/or, subject transformer offer is connected with negative
Test voltage under the load condition of load.
Optionally, as shown in Figures 4 and 5, the power supply device includes:
Variable-frequency power sources 210 is configured on the test circuit where the test connecting pin to the subject transformer
The voltage signal of preset frequency is provided；
Intermediate transformer 220 is connect with the variable-frequency power sources 210, for being converted the voltage signal to provide
The voltage of volt value needed for the subject transformer test.
The variable-frequency power sources 210 is connected on the test circuit where testing connecting pin, for providing to subject transformer
The ac voltage signal of its required frequency, in this way, transformer just has the voltage source for carrying out transformation.
Optionally, the variable-frequency power sources 210 includes: input terminal, the power supply of the power supply for receiving test site；Become
Frequency device is connect with the input terminal, for received power to be converted to the voltage signal of preset frequency；Output end, with institute
Frequency conversion device connection is stated, for exporting the voltage signal.
The intermediate transformer 220, connect with variable-frequency power sources 210, for being converted the voltage signal to provide
The voltage of frequency needed for the subject transformer test and required volt value.For example, intermediate transformer 220 can be used for being promoted it is described
The voltage value for the voltage signal that variable-frequency power sources 210 provides.For example, the intermediate transformer 220 can be exciting transformer.
In some embodiments, the input terminal of the variable-frequency power sources 210 may be inputted there are many power supply, and for example following two
Kind:
The first: three-phase 10kV voltage；
Second: three-phase 380V voltage.
In some embodiments, the input terminal of variable-frequency power sources 210 is connected with change-over switch, the shape that conversion opening passes through itself
State switches between two kinds of voltage sources.If the power supply of test site can provide the AC power source of the 380V of three-phase, turn
The first input circuit can be connected by changing switch, so that in the voltage input to the variable-frequency power sources 210.If the power supply of test site
The power supply of the 10kV, can be first converted to the voltage of 380V by distribution transformer by the power supply for the three-phase 10kV that power supply provides
It is input in variable-frequency power sources 210 later.
The voltage value that above the first and second of power supply provide all is citing, and when specific implementation is not limited to above-mentioned
Citing.In some embodiments, if it is the receivable input voltage of the variable-frequency power sources 210 that the voltage that power supply provides, which is located at,
Range is then directly powered from power supply to variable-frequency power sources 210, if the voltage that power supply provides is not located at the input voltage
In range, then converted by the voltage of power distribution, so that the power supply for being input to variable-frequency power sources 210 is located at its input voltage range
It is interior.
The power supply device 132 further include: filter 260；
The filter 260 is connected between variable-frequency power sources 210 and intermediate transformer 220, for filter out preset frequency with
Outer voltage signal.
Filter 260 is located between the variable-frequency power sources 210 and the intermediate transformer 220, is configured to described in filtering
Voltage signal other than scheduled frequency range, and the filtered voltage signal is transferred to the input terminal of intermediate transformation.
In the present embodiment, the filter 260 is between the variable-frequency power sources 210 and the intermediate transformer 220,
For filtering miscellaneous frequency voltage signal.Miscellaneous frequency signal herein is the voltage signal other than scheduled frequency range, for example, filtering is excessively high
Miscellaneous frequency voltage signal.The filter 260 can be high pressure low-pass filter, can permit the high tension voltage lower than preset frequency
Signal passes through.For example, the cutoff frequency of the high pressure low-pass filter is 100Hz, 110Hz, 90Hz etc..The cutoff frequency can
To be set as needed, it is not limited to any one above-mentioned value.
As shown in Fig. 2 to 4, Fig. 7 in the above-mentioned technical solutions, the measuring instrumentss 133 include: mutual inductor 230 and power
Analyzer 233；
The mutual inductor 230 includes: accurate voltage mutual inductor 231 and/or precision current transformer 232.
Measuring instrumentss 133 include at least one of in the present embodiment:
Measure the precision current transformer 232 of electric current；
Detect the accurate voltage mutual inductor 231 of voltage；
Detect the power analyzer 233 of the parameters such as power output, signal frequency, harmonic component；
In short, measuring instrumentss described in the present embodiment may include multiple direct or indirect connections on the test circuit
Instrument or detection device.
In the present embodiment, the measuring instrumentss 133 can be used for detecting at least one of: voltage effective value；Electric current
Virtual value, average voltage, current average, active power, reactive power, power factor, frequency, voltage harmonic, electric current are humorous
Wave, voltage total harmonic distortion, current total harmonic content.
As shown in fig. 7, in the above-mentioned technical solutions, the measuring and controlling 134 includes: industrial control computer 1, mends
Repay the controller 320 and power supply device controller 2 of capacitance group；
The industrial control computer 1, controller 320 and power supply device controller 2, are connected with each other by bus；
The industrial control computer 1 is connected with measuring instrumentss 133；
The power supply device controller 2, the power supply for controlling power supply device 132 export；
The compensating electric capacity group controller 320, for controlling compensation capacitor group 310.
The controller 320 includes: single-phase electricity container group controller 321 and/or three-phase capacitor group controller 322；
The single-phase electricity container group controller 321, for controlling single-phase compensation capacitor；
The three-phase capacitor group controller 322, for controlling three-phase compensation capacitor；
The single-phase electricity container group controller 321 and three-phase capacitor group controller 322 are connected with each other by bus；
The single-phase electricity container group controller 321, comprising: isolated power supply 3211, processing module 3212, the first communication module
3213, the second communication module 3214 and On-off signal output module 3215；
First communication module 3213 is connect with bus；
Second communication module 3214 is connect with measuring instrumentss 133；
The three-phase phase capacitor bank controllers 322, comprising: isolated power supply 3221, processing module 3222, first communicate mould
Block 3223, the second communication module 3224 and On-off signal output module 3225；
First communication module 3223 is connect with bus；
Second communication module 3224 is connect with measuring instrumentss 133.
The power supply device controller 2, comprising: isolated power supply 21, processing module 22) the first communication module 23, second is logical
Interrogate module 24, On-off signal output module 25, analog output module 26 and temperature-measuring module 27；
First communication module 23 is connect with bus；
Second communication module 24 is connect with measuring instrumentss 133.
The measuring and controlling 134 can by one or more PC (Personal Computer, PC) alternatively,
Programmable array (Programmable Logic Controller, PLC) etc. is constituted.Measuring and controlling 134: multiple controls
Module, these control modules can be connected to master controller by bus, and different control modules can control different tests
The different test functions of equipment or testing equipment.
Industrial control computer 1, can be with the power analyzer 233 in test instrumentation by communication interfaces such as RS232 interfaces
Connection, and power analyzer 233 is connected with precision current transformer 232 and accurate voltage mutual inductor 232.
The controller 320 of capacitor group, can be used for controlling the compensation of compensation capacitor.Show there is capacitor in figs. 5 and 6
The controller 320. of group
Power supply device controller 2, the master controller as the measuring system.Herein, the controller 320 of capacitor group
With power supply device controller 2 can referred to as test macro controller.
This three can be connected by communication bus, for example, passing through 8 mouthfuls of 10/100M adaptive switch.
The controller 320 of capacitor group includes: single-phase electricity container group controller 321 and/or three-phase capacitor group controller
322。
The single-phase electricity container group controller 321, can be used for controlling the single-phase compensation of compensation capacitor.The three phase capacitance
Device group controller 322 can be used for controlling the three-phase compensation of compensation capacitor.Optionally, single-phase electricity container group controller 321 can be
Single-phase electricity container group control PLC.The three-phase capacitor group controller 322 can be three-phase condenser bank control PLC.
Single-phase electricity container group controller 321 can include: (the power supply mould of isolated power supply 3211 being isolated with variable-frequency power sources 210
Block), it is processing module 3212 (for example, CPU or DSP), the first communication module 3213 (for example, ethernet communication module), second logical
Interrogate module 3214 (for example, MODBUS module) and On-off signal output module 3215.The processing module 3212 is for believing
Breath processing.Second communication module 3214 is used to receive various measured values from various measuring instrumentss, for example, sensing from digital quantity
Device receives output electric current of single-phase compensation circuit etc..Second communication module 3214 is connected to bus, so as to by the letter of itself
Breath is transferred to industrial control computer 1 and/or receives various information from industrial control computer 1.
Three-phase capacitor group controller 322 can include: (the power supply mould of isolated power supply 3221 being isolated with variable-frequency power sources 210
Block), it is processing module 3222 (for example, CPU or DSP), the first communication module 3223 (for example, ethernet communication module), second logical
Interrogate module 3224 (for example, MODBUS module) and On-off signal output module 3225.The processing module 3222 is for believing
Breath processing.Second communication module 3224 is used to receive various measured values from various measuring instrumentss, for example, sensing from digital quantity
The output electric current etc. of device reception three-phase compensation circuit.Second communication module 3224 is connected to bus, so as to by the letter of itself
Breath is transferred to industrial control computer 1 and/or receives various information from industrial control computer 1.
The On-off signal output module 3215 and On-off signal output module in the controller 320 of capacitor group
3225 connect with various switches.For example, On-off signal output module 3215 and On-off signal output module 3225 respectively can
By corresponding Pneumatic isolating switch solenoid valve control, the control of Pneumatic isolating switch is realized.On-off signal output module
3215 and On-off signal output module 3225, it include: the corresponding switch state for receiving switch, and/or, it is exported to switch
The switch order of the switch state switching of control switch.
Similar, the power supply device controller 1, or system main-control PLC.
Power supply device controller 1 can include: isolated power supply 21 (power module), the processing mould being isolated with variable-frequency power sources 210
Block 22 (for example, CPU or DSP), the first communication module 23 (for example, ethernet communication module), the second communication module 24 (for example,
MODBUS module), On-off signal output module 25 and analog output module 26, temperature-measuring module 27 be (for example, PT100
Temperature-measuring module).
The processing module 22 is used for information processing.Second communication module 24 is used to control the survey of various measuring instrumentss
Amount, control digital sensors carry out 210 output voltage testing current of variable-frequency power sources, the test of power supply voltage and current, frequency conversion
The control of 210 switching of power supply.Second communication module 24 is connected to bus, so as to which the information of itself is transferred to Industry Control meter
Calculation machine 1 and/or various information are received from industrial control computer 1.The temperature-measuring module 27, can be used for testing environment temperature
Control is cut in degree measurement, power circuit breaker investment, accurate measurement mutual inductor range adjusts control and 220 tap switch of intermediate transformer
Control.It is controlled by 220 tap switch of intermediate transformer, the adjustable voltage value from power supply unit institute output voltage.
In some embodiments, the Measurement and Control System may be mounted at control cabinet (capacitor as illustrated in Figures 5 and 6
The controller 320 of group) on.
Preferably, described device further include: isolating and protecting device 240；
The isolating and protecting device 240 is located on the test circuit at 131 place of test connecting pin, and setting is in subject transformer
Between measuring instrumentss 133；
The isolating and protecting device 240 can include: one or more insulation blocking switches, insulation blocking switch pass through itself
Switch state, to test circuit and test circuit in testing equipment protect.
It may include at least one of that the isolating and protecting device, which has 240 bodies: overvoltage protector；Pressure-failure protector；Cutout
Protector etc..One kind that isolation switch 240 can be the isolating and protecting device is shown in Fig. 3 and Fig. 4.
Described device further include: for the test assistant subsystem of auxiliary transformer on-the-spot test, for providing illumination
Illumination subsystems, and, for carrying out the Monitor And Control Subsystem of video monitoring to transformer on-site test.
Test auxiliary system, the on-the-spot test for auxiliary transformer.For example, the test auxiliary system include with down toward
One of few: illumination subsystems are configured to provide for test illumination；Video monitoring subsystem is configured to carry out video monitoring to test.
For example, the video monitoring subsystem is connect with the control system, it can be used for the monitoring of tester.Some
In the case of the video monitoring subsystem can also establish and be wirelessly connected with the mobile device of tester, for realizing wireless prison
Control.
A kind of for the present embodiment vehicular power transformer is empty, load loss on-site test system test method,
Include:
For the automatic switching control method of compensation capacitor group 310；
To the no-load test test method of subject transformer；
To the load test test method of subject transformer.
The automatic switching control method for compensation capacitor group 310, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer 1；The basic parameter of the subject transformer
It include: capacity, high pressure and the low-voltage rated voltage for being tested transformer；
According to testing regulations, setting is applied to the voltage and current on subject transformer；
According to the voltage and current being applied on subject transformer, intermediate transformer 220 and compensation capacitor group are calculated
310 required gear, and automatic switching gear is carried out by power supply device controller 2；
The output electric current of intermediate transformer 220 is obtained from precision current transformer 232；
It will be applied to output electric current, the condenser voltage gear of the electric current on subject transformer, intermediate transformer 220, led to
The capacity that pre-defined algorithm obtains compensation capacitor group 310 is crossed, and is carried out described in automatic switching by compensating electric capacity group controller 320
Capacity；
The no-load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer 1；
According to the basic parameter of subject transformer, pass through the shelves of switch control variable-frequency power sources 210 and intermediate transformer 220
Position applies voltage in subject step down side, applied voltage is made to be equal to the voltage rating of subject transformer；
By precision current transformer 232, accurate voltage mutual inductor 231 and power analyzer 233, unloaded numerical value is obtained；
The unloaded parameter of subject transformer is calculated by unloaded numerical value；The zero load parameter includes: no-load loss, excitation
Impedance and excitation resistance；
The load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer 1；
According to the basic parameter of subject transformer, pass through the shelves of switch control variable-frequency power sources 210 and intermediate transformer 220
Position applies electric current in subject step down side, applied electric current is made to be equal to the rated current of subject transformer；
By precision current transformer 232, accurate voltage mutual inductor 231 and power analyzer 233, load examination number is obtained
Value；
The load parameter of subject transformer is calculated by load examination numerical value；The load parameter includes: short circuit loss, short
Roadlock is anti-, short-circuit resistance and short-circuit voltage.
A specific example is provided below in conjunction with any of the above embodiment:
The embodiment of the invention provides vehicular power transformer skies, load loss on-site test system:
Test macro 130 is tested required various testing equipments and measuring instrumentss collection using vehicle as carrier by test macro 130
At on vehicle body, constitute a set of vehicle power no-load transformer and load on-site test system 130.
The test macro 130 can onboard complete independently no-load transformer and load loss be tested, testing equipment do not get off,
Without secondary assembling, without repeating wiring between testing equipment, instruction carriage to scene can Automatic-expanding reach trystate, expire
Safe insulation distance and cooling requirements, can greatly shorten power off time, mitigate the labour of testing crew needed for foot test
Intensity improves test efficiency.
Vehicular power transformer is empty, load loss on-site test system includes vehicle body, test macro 130, auxiliary
System.Vehicle body is opened van-type special-purpose vehicle by two wings and is formed；Test macro 130 includes passing through the sequentially connected examination of route
Electrical verification source, variable-frequency power sources 210, filter 260, intermediate transformer 220, compensation capacitor group 310, measuring and controlling 134, every
From protective device 240 etc.；
Optionally, as shown in Fig. 3 to 6 and Fig. 8 to 9, the vehicle body, including the wing open van-type special-purpose vehicle A and
The wing opens van-type special-purpose vehicle B；The wing is opened and is sequentially placed power input cable disk 250, variable-frequency power sources on van-type special-purpose vehicle A
210 (containing input control switches, output hv filtering)；Intermediate transformer 220, variable-frequency power sources 210 are placed on the right side of variable-frequency power sources 210
Output wiring terminal and 220 input terminal of intermediate transformer use cable connection, and 220 output terminal of intermediate transformer is in the other side
Face is drawn, and casing is diagonally disposed to keep wiring Board position parallel with the phase accurate measurement mutual inductor position A, C, passes through busbar and precision
Current transformer connection.The wing is opened in van-type special-purpose vehicle B and is sequentially placed three-phase condenser bank (compensation capacitor group from inside to outside
310), vehicle rear places PLC control and gas source cabinet (controller 320 of capacitance group).Compensation capacitor group 310 is all by pneumatic
Switch control, compressed gas is provided by gas source cabinet to control the switch state of jettron.
The power input cable disk 250 can be coiled to form for cable, can be used for the power supply of system and test site
Connection.
Optionally, the measuring and controlling 134, including accurate voltage mutual inductor 213, precision current transformer 232,
Power analyzer etc. 233.Reference measure data include: that variable-frequency power sources 210 exports three-phase voltage, electric current, capacitor group output three
Phase current；Accurate measurement data include: phase voltage virtual value, line voltage virtual value, phase voltage average value, line voltage average value,
Current effective value, active power, Q reactive power, power factor, frequency, 1 to 19 voltage and current harmonic wave, voltage and current are total
Harmonic content and current total harmonic content (THD) etc..
Optionally, the measuring and controlling 134 is specifically used for realizing at least one of:
Variable-frequency power sources 210 exports the control of A.C. contactor splitting or integrating；
220 gear of intermediate transformer is adjusted；
Measurement 231 gear of accurate voltage mutual inductor adjusting control,
It measures 232 gear of precision current transformer and adjusts control；
The voltage change of variable-frequency power sources 210 is fast, slow and decompression controls.
Optionally, the isolating and protecting device 240, it may include: high voltage isolator, scram button, alarm bell warning lamp etc.；
Protection project includes: more than 210 kinds of electronic type protections of variable-frequency power sources；Accurate measurement mutual inductor overrange protection；Variable-frequency power sources 210 0
Raising voltage protection；Test item overvoltage and overcurrent protection；Load loss measurement test overcompensation and undercompensation protection；Warning lamp,
Alarm bell and scram button setting.
The electronic type protection can include: input overvoltage protection, output overcurrent protection, output short circuit protection etc. therein one
It is a or multiple.
Optionally, the experiment power supply can be external power supply, and be not disposed on vehicle, can be according to field test power supply
The case where selection three-phase 380V experiment power supply or three-phase 10kV power supply by the decompression of the distribution transformer of 10kV/380V after
Experiment power supply, the two are selected by change-over switch.
Optionally, the wing opens van-type special-purpose vehicle, opens expansion vehicle including the wing of car body and rear vehicle
Compartment 110；The wing opens flap door 410, the clamshell doors of tail portion that expansion compartment 110 is arranged symmetrically by roof gusset, two sides
420 compositions；One end of the flap door 410 (for one kind of active box above-mentioned) is articulated on roof gusset by hinge, institute
Flap door 410 is stated to be unfolded by flap door Driven by Hydraulic Cylinder.
Test macro 130 provided in this embodiment further include: auxiliary system.The auxiliary system may include lighting unit, view
Frequency monitoring unit, hydraulic pressure support unit, hydraulic control unit etc..
The present embodiment energy complete independently no-load transformer and load loss are tested, and testing equipment is not got off, without secondary group
Dress, without repeating wiring between testing equipment, instruction carriage to scene can Automatic-expanding reach trystate, meet needed for testing
Safe insulation distance and cooling requirements, power off time can greatly be shortened, mitigate the labor intensity of testing crew, improve examination
Test efficiency.
Implementation steps:
This example provides the mobile on-site testing device for being used for power transformer zero load and load loss, the step of field test
It is rapid as follows:
Vehicle reaches testing ground, successively parks；
Vehicle Automatic-expanding compartment 110；
Connect ground line；
Connect 310 connecting cable of compensation capacitor group；
Connect power supply cable；
Connect experimental test line (to subject transformer)；
Tester opens control computer, according to transformer nameplate parameter, selects testing scheme；
Field supervisor carries out safety inspection；
Tester operates computer and tests；
Test is completed, and data automatically save；
Electric discharge, grounding switch ground connection；
Disconnect power supply；
Test connection is removed, the connection of subject transformer and test macro 130 is disconnected；
Compartment 110 is automatically closed in vehicle.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (10)
1. a kind of vehicular power transformer is empty, load loss on-site test system characterized by comprising test macro
(130) and the car door wing to be opened/closed opens expansion compartment (110), and the test macro (130) is located at the wing and opens expansion vehicle
In compartment (110)；
The test macro (130) includes: for connecting the test connecting pin (131) of subject transformer, mentioning for subject transformer
For the power supply device (132) of test voltage, the measuring instrumentss (133) for obtaining subject transformer measurement data, for controlling
The measuring and controlling (134) of measuring instrumentss (133), and, the compensation capacitor group of capacitive compensation is provided for subject transformer
(310)；
The power supply device (132), measuring instrumentss (133), measuring and controlling (134) and compensation capacitor group (310) all positions
In testing on the test circuit where connecting pin (131)；
The input terminal of the power supply device (132) is connected with the power supply of test site.
2. vehicular power transformer according to claim 1 is empty, load loss on-site test system, which is characterized in that
The wing opens expansion compartment (110), comprising: vehicle body frame, the active box being mounted on vehicle body frame, and driving are lived
The door expansion of dynamic cabinet or the driving device (120) of closure.
3. vehicular power transformer according to claim 1 is empty, load loss on-site test system, which is characterized in that
The power supply device (132) includes: variable-frequency power sources (210), intermediate transformer (220) and filter (260)；
The input terminal of the variable-frequency power sources (210) is the input terminal of power supply device (132), and the variable-frequency power sources (210) is used for will
The power supply of test site is converted to the voltage signal of preset frequency；
The input terminal of the intermediate transformer (220) is connected with the output end of variable-frequency power sources (210), the intermediate transformer
(220) for voltage needed for the voltage signal of preset frequency is converted to subject transformer；
The filter (260) is connected between variable-frequency power sources (210) and intermediate transformer (220), for filtering out preset frequency
Voltage signal in addition.
4. vehicular power transformer according to claim 1 or 2 or 3 is empty, load loss on-site test system, feature
It is, the measuring instrumentss (133) include: mutual inductor (230) and power analyzer (233)；
The mutual inductor (230) includes: accurate voltage mutual inductor (231) and/or precision current transformer (232).
5. vehicular power transformer according to claim 4 is empty, load loss on-site test system, which is characterized in that
The measuring and controlling (134) includes: the control of industrial control computer (1), power supply device controller (2) and compensating capacitance group
Device (320) processed；
The industrial control computer (1), power supply device controller (2) and compensating electric capacity group controller (320), pass through bus phase
It connects；
The industrial control computer (1) is connected with measuring instrumentss (133)；
The power supply device controller (2), the power supply for controlling power supply device (132) export；
The compensating electric capacity group controller (320), for controlling compensation capacitor group (310).
6. vehicular power transformer according to claim 5 is empty, load loss on-site test system, which is characterized in that
The compensation capacitor group (310) includes: three-phase compensation capacitor and single-phase compensation capacitor；
The three-phase compensation capacitor, for providing three-phase compensation when being tested transformer and carrying out load testing；
The single-phase compensation capacitor, for providing single-phase compensation when being tested transformer and carrying out load testing.
7. vehicular power transformer according to claim 1 is empty, load loss on-site test system, which is characterized in that
Described device further include: isolating and protecting device (240)；
The isolating and protecting device (240) is located on the test circuit where test connecting pin (131), and setting is in subject transformer
Between measuring instrumentss (133).
8. vehicular power transformer according to claim 1 is empty, load loss on-site test system, which is characterized in that
Described device further include: for the test assistant subsystem of auxiliary transformer on-the-spot test, for providing the illumination subsystem of illumination
System, and, for carrying out the Monitor And Control Subsystem of video monitoring to transformer on-site test.
9. a kind of vehicular power transformer according to any one of claim 5 to 8 is empty, load loss on-the-spot test system
The test method of system characterized by comprising
For the automatic switching control method of compensation capacitor group (310)；
To the no-load test test method of subject transformer；
To the load test test method of subject transformer.
10. vehicular power transformer according to claim 9 is empty, method is surveyed at load loss scene, it is characterised in that: institute
The automatic switching control method for compensation capacitor group (310) is stated, is specifically included:
The basic parameter input of transformer will be tested to industrial control computer (1)；The basic parameter packet of the subject transformer
It includes: being tested capacity, high pressure and the low-voltage rated voltage of transformer；
According to testing regulations, setting is applied to the voltage and current on subject transformer；
According to the voltage and current being applied on subject transformer, intermediate transformer (220) and compensation capacitor group are calculated
(310) required gear, and automatic switching gear is carried out by power supply device controller (2)；
The output electric current of intermediate transformer (220) is obtained from precision current transformer (232)；
It will be applied to output electric current, the condenser voltage gear of the electric current on subject transformer, intermediate transformer (220), passed through
Pre-defined algorithm obtains the capacity of compensation capacitor group (310), and carries out automatic switching institute by compensating electric capacity group controller (320)
State capacity；
The no-load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer (1)；
According to the basic parameter of subject transformer, pass through the shelves of switch control variable-frequency power sources (210) and intermediate transformer (220)
Position applies voltage in subject step down side, applied voltage is made to be equal to the voltage rating of subject transformer；
By precision current transformer (232), accurate voltage mutual inductor (231) and power analyzer (233), unloaded number is obtained
Value；
The unloaded parameter of subject transformer is calculated by unloaded numerical value；The zero load parameter includes: no-load loss, excitation impedance
And excitation resistance；
The load test test method of described pair of subject transformer, specifically includes:
The basic parameter input of transformer will be tested to industrial control computer (1)；
According to the basic parameter of subject transformer, pass through the shelves of switch control variable-frequency power sources (210) and intermediate transformer (220)
Position applies electric current in subject step down side, applied electric current is made to be equal to the rated current of subject transformer；
By precision current transformer (232), accurate voltage mutual inductor (231) and power analyzer (233), load examination number is obtained
Value；
The load parameter of subject transformer is calculated by load examination numerical value；The load parameter includes: short circuit loss, short circuit resistance
Anti-, short-circuit resistance and short-circuit voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229917.3A CN109188071A (en) | 2018-10-22 | 2018-10-22 | Vehicular power transformer sky, load loss on-site test system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811229917.3A CN109188071A (en) | 2018-10-22 | 2018-10-22 | Vehicular power transformer sky, load loss on-site test system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109188071A true CN109188071A (en) | 2019-01-11 |
Family
ID=64946214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811229917.3A Pending CN109188071A (en) | 2018-10-22 | 2018-10-22 | Vehicular power transformer sky, load loss on-site test system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109188071A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320426A (en) * | 2019-07-26 | 2019-10-11 | 贵州长征电器成套有限公司 | A kind of portable power transformer detection device |
| CN110824260A (en) * | 2019-12-13 | 2020-02-21 | 吴江变压器有限公司 | Method for measuring and calculating no-load loss of transformer |
| CN113203962A (en) * | 2021-05-08 | 2021-08-03 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | On-spot empty load test system of transformer |
| CN115561595A (en) * | 2022-10-17 | 2023-01-03 | 国网浙江省电力有限公司电力科学研究院 | Vehicle-mounted 220kV low-frequency transformer partial discharge test platform |
| WO2023138045A1 (en) * | 2022-01-21 | 2023-07-27 | 苏州华电电气股份有限公司 | Energy efficiency index detection apparatus for power transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201754170U (en) * | 2010-08-23 | 2011-03-02 | 上海思创电器设备有限公司 | On-site high voltage dielectric loss test vehicle for power equipment |
| CN103630783A (en) * | 2013-11-29 | 2014-03-12 | 广州供电局有限公司 | Mobile detection device of transformer equipment |
| CN203519749U (en) * | 2013-10-31 | 2014-04-02 | 国家电网公司 | Frequency-conversion voltage-regulation device for extra-high voltage large transformer no-load test |
| CN203535143U (en) * | 2013-10-31 | 2014-04-09 | 国家电网公司 | A large transformer field test integrated apparatus based on a frequency-converting and voltage-adjusting power supply |
| CN105044479A (en) * | 2015-01-30 | 2015-11-11 | 国网河南省电力公司电力科学研究院 | Apparatus for large-scale oil-immersed transformer no-load and on-load comprehensive tests and method |
| CN105826933A (en) * | 2016-06-01 | 2016-08-03 | 国家电网公司 | Capacitance compensation device of extra-high voltage substation simulation commissioning checking system |
| CN209148769U (en) * | 2018-10-22 | 2019-07-23 | 国网电力科学研究院武汉南瑞有限责任公司 | Vehicular power transformer sky, load loss on-site test system |
-
2018
- 2018-10-22 CN CN201811229917.3A patent/CN109188071A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201754170U (en) * | 2010-08-23 | 2011-03-02 | 上海思创电器设备有限公司 | On-site high voltage dielectric loss test vehicle for power equipment |
| CN203519749U (en) * | 2013-10-31 | 2014-04-02 | 国家电网公司 | Frequency-conversion voltage-regulation device for extra-high voltage large transformer no-load test |
| CN203535143U (en) * | 2013-10-31 | 2014-04-09 | 国家电网公司 | A large transformer field test integrated apparatus based on a frequency-converting and voltage-adjusting power supply |
| CN103630783A (en) * | 2013-11-29 | 2014-03-12 | 广州供电局有限公司 | Mobile detection device of transformer equipment |
| CN105044479A (en) * | 2015-01-30 | 2015-11-11 | 国网河南省电力公司电力科学研究院 | Apparatus for large-scale oil-immersed transformer no-load and on-load comprehensive tests and method |
| CN105826933A (en) * | 2016-06-01 | 2016-08-03 | 国家电网公司 | Capacitance compensation device of extra-high voltage substation simulation commissioning checking system |
| CN209148769U (en) * | 2018-10-22 | 2019-07-23 | 国网电力科学研究院武汉南瑞有限责任公司 | Vehicular power transformer sky, load loss on-site test system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320426A (en) * | 2019-07-26 | 2019-10-11 | 贵州长征电器成套有限公司 | A kind of portable power transformer detection device |
| CN110824260A (en) * | 2019-12-13 | 2020-02-21 | 吴江变压器有限公司 | Method for measuring and calculating no-load loss of transformer |
| CN113203962A (en) * | 2021-05-08 | 2021-08-03 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | On-spot empty load test system of transformer |
| WO2023138045A1 (en) * | 2022-01-21 | 2023-07-27 | 苏州华电电气股份有限公司 | Energy efficiency index detection apparatus for power transformer |
| CN115561595A (en) * | 2022-10-17 | 2023-01-03 | 国网浙江省电力有限公司电力科学研究院 | Vehicle-mounted 220kV low-frequency transformer partial discharge test platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102596181B1 (en) | Field test method and system for no-load and load loss of vehicle-mounted power transformer | |
| CN109188071A (en) | Vehicular power transformer sky, load loss on-site test system and method | |
| US8890540B2 (en) | Partial discharge experiment power supply system for extra-high voltage transformer and method thereof | |
| CN201383629Y (en) | Comprehensive power test vehicle | |
| CN103264650B (en) | A kind of charging electric vehicle facility inspection vehicle | |
| CN107422278A (en) | Subway train traction invertor high pressure belt load testing platform | |
| CN109541360A (en) | A kind of ring network cabinet assembly line | |
| CN209148769U (en) | Vehicular power transformer sky, load loss on-site test system | |
| CN209182414U (en) | A kind of charging pile tool car | |
| CN201289515Y (en) | Mobile local discharge test device | |
| CN105405341B (en) | Simulate Factory Electricity Supply experiment device for teaching | |
| CN107748339A (en) | A kind of power of alterating and direct current multi-function test stand | |
| CN207488385U (en) | Energy storage type charging pile Site Detection vehicle | |
| CN203720274U (en) | Movable-type detection device for transformer-like equipment | |
| CN203344789U (en) | Electric automobile charging appliance detecting vehicle | |
| CN206609923U (en) | A kind of subway train traction invertor high pressure belt load testing platform | |
| CN209624734U (en) | A kind of circuit-breaker testing case | |
| CN205301457U (en) | On -vehicle electric power testboard of synthesizing of box removal | |
| CN103630783B (en) | Transformer ' s type equipment moving formula checkout gear | |
| CN110415590A (en) | A kind of intelligence power supply and distribution training platform and its control method | |
| CN109406910A (en) | A kind of charging pile tool car | |
| CN204488603U (en) | A kind of combined power inspection vehicle of height integrated modular | |
| CN205301461U (en) | High -power high -voltage inverter aging testing system | |
| CN201788236U (en) | Special detection device of sliding contact power supply dolly | |
| CN107015169A (en) | Detect the dry type load device of bank electricity variable-frequency power sources performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |