CN106872864A - A kind of experimental provision of test run operating mode setting of casing insulating properties - Google Patents
A kind of experimental provision of test run operating mode setting of casing insulating properties Download PDFInfo
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- CN106872864A CN106872864A CN201710127822.XA CN201710127822A CN106872864A CN 106872864 A CN106872864 A CN 106872864A CN 201710127822 A CN201710127822 A CN 201710127822A CN 106872864 A CN106872864 A CN 106872864A
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- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
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- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
This application provides a kind of experimental provision of test run operating mode setting of casing insulating properties, temperature control equipment makes comparisons preset temperature with detection temperature, controls the working condition of power supply, so as to control electric-heating-wire-heating state, temperature in copper pipe is maintained working temperature.The leakage current of sleeve pipe interior insulation temperature and the leakage current tester detection for being gathered by analysis, temperature control equipment again, understands insulating properties of the sleeve pipe under operating condition.The present apparatus can highly reduce the real operating environments of sleeve pipe, and the working condition of true analog casing improves the accuracy of sleeve pipe insulating properties detection.
Description
Technical field
The invention belongs to the high-potting field of sleeve pipe, specifically related to a kind of reality of test run operating mode setting of casing insulating properties
Experiment device.
Background technology
Bushing shell for transformer is the important component of electrical equipment, for the high-voltage connection of the electrical equipments such as transformer, reactor
Insulation to metal shell, is the important component of power system, its insulating properties direct relation power network whether can safely,
The operation of stabilization.In actual moving process, the copper pipe in sleeve pipe can be by high current, due to the thermal effect of electric current for oil-immersed sleeve pipe
Should, copper pipe can produce the heat, therefore the temperature on sleeve pipe top to raise；Sleeve pipe middle part is provided with flange, for sleeve pipe to be fixed on
Transformer upper surface；Casing part is immersed in transformer oil, is influenceed by temperature of oil in transformer, and casing part is also at the work of high temperature
Make state, meanwhile, sleeve pipe is also in high voltage electric field.
But at present, the sleeve pipe insulating properties experiment in temperature field, is by the copper pipe of experiment thimble under true dry run operating mode
Middle injection and actual transmission line of electricity identical high current, to the actual running status of simulated field, so as to improve sleeve pipe top
Temperature, this method needs a high-power DC power supply, and power consumption is huge, also needs to maintain the negative of copper pipe in experimentation
Temperature is carried, high current source can also bring obvious electromagnetic interference, make test result inaccurate to high-voltage testing system.Under sleeve pipe
Portion is still placed in oil tank of transformer, and simulated experiment is done using the waste heat of tank transformer oil, and this method can not accurately reflect change
The oil temperature meeting continuous decrease of inside transformer after the running temperature of depressor oil, and transformer stoppage in transit, so as to influence the standard of experiment
True property.
Therefore, being badly in need of one kind can simulate normal operation circumstances, the experimental provision for detecting sleeve pipe insulating properties.
The content of the invention
This application provides a kind of experimental provision of test run operating mode setting of casing insulating properties, it is used to solve prior art
In, there is deviation, the big problem of test insulating properties error with casing bit real operating environments in experimental situation.
To achieve the above object, this application provides a kind of experimental provision of test run operating mode setting of casing insulating properties, bag
Include：Flange, sleeve pipe, copper pipe, heating wire, the first temperature sensor, second temperature sensor, experimental box, power supply, temperature control dress
Put, transformer, leakage current tester, three-temperature sensor；
Described sleeve pipe is wrapped in the outside of the copper pipe；
The inwall of the sleeve pipe between described sleeve pipe and the copper pipe is provided with the three-temperature sensor；
The heating wire, first temperature sensor and the second temperature sensor, institute are provided with inside the copper pipe
The first temperature sensor is stated on the inwall at the copper pipe end, the second temperature sensor is located at copper pipe middle part
On the inwall at place, the heating wire is located at the middle part of first temperature sensor and the second temperature sensor；
The temperature control equipment respectively with the power supply, first temperature sensor, the second temperature sensor
Connected with the three-temperature sensor；
The power supply is connected by wire with the heating wire；
The transformer is connected by wire with the flange, the copper pipe and the leakage current tester；
Sleeve pipe below the flange, is all put into the experimental box, to the described sleeve pipe being put into the experimental box
Bottom sealed；
Insulating oil is provided with the experimental box；
First temperature sensor and the second temperature sensor are used to detect the temperature of the copper pipe inwall；
The three-temperature sensor is used to detect the temperature of described sleeve pipe inwall；
The temperature control equipment is used to gather first temperature sensor, the second temperature sensor and described the
The temperature value of three-temperature sensor, first temperature sensor, the second temperature sensor and the 3rd temperature are passed
The temperature value of sensor detection, the first preset temperature value respectively with the temperature control equipment, the second preset temperature value and the 3rd
Preset temperature value is compared, and according to comparative result, controls the working condition of the power supply, and then control adding for the heating wire
Warm status.
Optionally, if the temperature control equipment be additionally operable to first temperature sensor detection temperature value be more than or
Equal to the first preset temperature value, the temperature value of the second temperature sensor detection is more than or equal to the second preset temperature value, institute
The temperature value of three-temperature sensor detection is stated more than or equal to the 3rd preset temperature value, then controls the power cut-off；
Otherwise, the power supply is controlled to be powered.
Optionally, also include：It is 4th temperature sensor, the first flexible pipe, the first oil pump, the second flexible pipe, fuel tank, the 3rd soft
Pipe, the second oil pump, the 4th flexible pipe and control device；
The experimental box is connected by first flexible pipe with first oil pump；
First oil pump is connected by second flexible pipe with the fuel tank；
The fuel tank is connected by the 3rd flexible pipe with second oil pump；
Second oil pump is connected by the 4th flexible pipe with the experimental box；
The control device respectively with first oil pump, second oil pump, the 4th temperature sensor and described
Fuel tank is connected；
Insulating oil and heater are provided with the fuel tank；
4th temperature sensor is used to detect the temperature of the experimental box interior insulation oil；
The control device is used to gather the temperature value of the 4th temperature sensor, by its 4th temperature sensor
The temperature value of detection is compared with the 4th preset temperature value of control device, according to comparative result, controls to add in the fuel tank
The working condition of thermal；
The control device is used to gather the temperature value of the 4th temperature sensor, by its 4th temperature sensor
The temperature value of detection is compared with the 4th preset temperature value of control device, according to comparative result, controls first oil pump
With the working condition of second oil pump.
Optionally, if the control device temperature value that is additionally operable to the 4th temperature sensor detection is pre- less than the 4th
If temperature value, then control the heater in the fuel tank in running order, otherwise, heater is in off state.
Optionally, if the control device is additionally operable to the temperature of the 4th temperature sensor detection less than or greater than the
Four preset temperature values, then start first oil pump and second oil pump, otherwise, first oil pump and described second simultaneously
Oil pump will be in off state.
Optionally, the bottom of the experimental box is provided with support.
From above technical scheme, this application provides a kind of experiment dress of test run operating mode setting of casing insulating properties
Put, temperature control equipment is respectively by the detection temperature of the first temperature sensor and second temperature sensor and temperature control equipment
First preset temperature and the second preset temperature are made comparisons, when the detection temperature of temperature sensor is greater than or equal to temperature control equipment
Preset temperature when, temperature control equipment control power supply stop heating wire being powered；When the detection temperature of temperature sensor is less than
During the preset temperature of temperature control equipment, temperature control equipment control power supply continues to power heating wire.Filled by temperature control
The control to heating wire working condition is put, temperature in copper pipe is kept constant.The 3rd temperature is passed by temperature control equipment again
The leakage current of collection and the leakage current tester detection of the sleeve pipe interior insulation temperature of sensor detection, analyzes the insulating properties of sleeve pipe
Energy.The present apparatus can highly reduce the real operating environments of sleeve pipe, and the working condition of true analog casing improves sleeve pipe insulating properties
The accuracy that can be detected.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is this application provides a kind of experimental provision structural representation of test run operating mode setting of casing insulating properties.
Wherein, 1- flanges, 2- sleeve pipes, 3- copper pipes, 4- heating wire, the temperature sensors of 5- first, 6- second temperature sensors,
The temperature sensors of 7- the 4th, 8- supports, the flexible pipes of 9- first, the oil pumps of 10- first, the flexible pipes of 11- second, 12- fuel tanks, 13- the 3rd is soft
Pipe, the oil pumps of 14- second, the flexible pipes of 15- the 3rd, 16- experimental boxs, 17- control devices, 18- power supplys, 19- temperature control equipments, 20-
Transformer, 21- leakage current testers, 22- three-temperature sensors.
Specific embodiment
Referring to Fig. 1, Fig. 1 is to show this application provides a kind of experimental provision structure of test run operating mode setting of casing insulating properties
It is intended to.
This application provides a kind of experimental provision of test run operating mode setting of casing insulating properties, including：Flange 1, sleeve pipe 2,
Copper pipe 3, heating wire 4, the first temperature sensor 5, second temperature sensor 6, experimental box 16, power supply 18, temperature control equipment 19,
Transformer 20, leakage current tester 21, three-temperature sensor 22；
Described sleeve pipe 2 is wrapped in the outside of the copper pipe 3；
The inwall of the sleeve pipe 2 between described sleeve pipe 2 and the copper pipe 3 is provided with the three-temperature sensor 22；
The heating wire 4, first temperature sensor 5 and the second temperature sensor are provided with inside the copper pipe 2
6, first temperature sensor 5 is located on the inwall of the port of the copper pipe 3, and the second temperature sensor 6 is located at described
On the inwall of the center of copper pipe 3, the heating wire 4 is located at first temperature sensor 5 and the second temperature sensor 6
Middle part；
The temperature control equipment 19 respectively with the power supply 18, first temperature sensor 5, the second temperature passes
Sensor 6 and the three-temperature sensor 22 are connected；
The power supply 18 is connected by wire with the heating wire 4；
By wire and the flange 1, the copper pipe 3 and the leakage current tester 21 are connected the transformer 20；
Sleeve pipe 2 of the flange below 1, is all put into the experimental box 16, to the institute being put into the experimental box 16
The bottom for stating sleeve pipe 2 is sealed；
Insulating oil is provided with the experimental box 16；
First temperature sensor 5 and the second temperature sensor 6 are used to detect the temperature of the inwall of the copper pipe 3；
3rd temperature control equipment 22 is used to detect the temperature of the inwall of described sleeve pipe 2；
The temperature control equipment 19 is used to gather first temperature sensor 5 and the second temperature sensor 6
Temperature, by the temperature value of its described first temperature sensor 5 and the second temperature sensor 6 respectively with the first preset temperature value
It is compared with the second preset temperature value, according to comparative result, controls the working condition of the power supply.
Operation principle of the invention：The insulating oil of temperature needed for injection experimentses in experimental box 16, the first temperature sensor 5
The temperature of detection copper pipe 3 port, the second temperature sensor 6 detection middle portion temperature of copper pipe 3, temperature control equipment 19 will be gathered
The temperature of the first temperature sensor 5 and the temperature of second temperature sensor 6 respectively with the first preset temperature and the second preset temperature
It is compared, when detection temperature is greater than or equal to preset temperature, temperature control equipment 19 makes heating wire by controlling power supply 18
4 are in off-position, and stopping is heated to copper pipe 3；When detection temperature is less than preset temperature, temperature control equipment 19 is by control
Power supply 18, makes heating wire 4 be in "on" position, continues to the heat supply of copper pipe 3, untill preset temperature is reached.By above-mentioned mistake
Journey, makes copper pipe 3-dimensional hold in working temperature, then by analysis, the three-temperature sensor 22 of the collection of temperature control equipment 19 is detected
The interior insulation temperature of sleeve pipe 2 and the detection of leakage current tester 21 leakage current, understand insulation of the sleeve pipe 2 under operating condition
Performance.
From above technical scheme, this application provides a kind of experiment dress of test run operating mode setting of casing insulating properties
Put, temperature control equipment 19 respectively fills the detection temperature of the first temperature sensor 5 and second temperature sensor 6 and temperature control
The first preset temperature and the second preset temperature for putting 19 are made comparisons, when the detection temperature of temperature sensor is greater than or equal to temperature control
During the preset temperature of device processed 19, the control power supply 18 of temperature control equipment 19 stops powering heating wire 4；When temperature sensor
When detection temperature is less than the preset temperature of temperature control equipment 19, the control power supply 18 of temperature control equipment 19 continues to heating wire 4
Power supply.Control by temperature control equipment 19 to the working condition of heating wire 4, makes temperature in copper pipe 3 keep constant.Again by temperature
The collection of 19 pairs of interior insulation temperature of sleeve pipe 2 of the detection of three-temperature sensor 22 of degree control device and leakage current tester 21
The leakage current of detection, analyzes the insulating properties of sleeve pipe 2.The present apparatus can highly reduce the real operating environments of sleeve pipe, true simulation
The working condition of sleeve pipe, improves the accuracy of sleeve pipe insulating properties detection.
Further, if the temperature that is additionally operable to first temperature sensor 5 detection of the temperature control equipment 19 is big
In or equal to the first preset temperature value, and the detection of the second temperature sensor 6 temperature more than or equal to the second default temperature
Angle value, then control the power cut-off；
Otherwise, the power supply is controlled to be powered.
First temperature sensor 5 is used to detect the temperature of the port of copper pipe 3, and second temperature sensor 6 is used to detect copper pipe 3
The temperature at middle part, temperature control equipment 19 is provided with preset first temperature and preset second temperature, is respectively intended to simulate actual condition
Under, the temperature value of different parts in copper pipe 3, temperature control equipment 19 is distinguished by by preset first temperature and preset second temperature
Temperature with the first temperature sensor 5 and second temperature sensor 6 is compared, and controls the working condition of power supply 18.Work as temperature
When the detected value of sensor is greater than or equal to preset value, control power supply stops powering heating wire, when the detection of temperature sensor
When value is less than preset value, control power supply continues to power heating wire, until reaching preset value, temperature in copper pipe 3 is maintained work
Condition temperature.
Further, a kind of experimental provision of test run operating mode setting of casing insulating properties also includes：4th temperature sensor
7, the first flexible pipe 9, the first oil pump 10, the second flexible pipe 11, fuel tank 12, the 3rd flexible pipe 13, the second oil pump 14, the 4th flexible pipe 15 and control
Device processed 17；
The experimental box 16 is connected by first flexible pipe 9 with first oil pump 10；
First oil pump 10 is connected by second flexible pipe 11 with the fuel tank 12；
The fuel tank 12 is connected by the 3rd flexible pipe 13 with second oil pump 14；
Second oil pump 14 is connected by the 4th flexible pipe 15 with the experimental box 16；
The control device 17 respectively with first oil pump 10, second oil pump 14, the 4th temperature sensor 7
Connected with the fuel tank 12；
Insulating oil and heater are provided with the fuel tank 12；
4th temperature sensor 7 is used to detect the temperature of the interior insulation of the experimental box 16 oil；
The control device 17 is used for the temperature according to the 4th temperature sensor 7, controls adding in the fuel tank 12
The working condition of thermal；
The control device 1 is additionally operable to the temperature according to the 4th temperature sensor 7, controls the He of the first oil pump 10
The working condition of second oil pump 14；
The oil temperature that temperature sensor 7 is used in test experience case 16, control device 17 is preset the 3rd temperature value with temperature
The degree detection temperature value of sensor 7 is compared, when the detected value of temperature sensor 7 is greater than or equal to preset temperature value, control dress
The heater stop heating in 17 control fuel tanks 12 is put, while making the first oil pump 10 and the second oil pump 14 maintain and at the uniform velocity transport
OK；When the detected value of temperature sensor 7 is less than preset temperature value, the heater in the control fuel tank 12 of control device 17 continues
Heating, untill preset value is reached, while making the first oil pump 10 and the Accelerating running of the second oil pump 14, makes exhausted in experimental box 16
Edge oil temperature can as early as possible reach preset value.By above-mentioned control process, the oil temperature in experimental box 16 can be made to maintain working temperature.
Further, if the control device 17 be additionally operable to the 4th temperature sensor 7 detection temperature be more than or
Equal to the 3rd preset temperature value of the control device 17, then start the heater in the fuel tank 12, otherwise, heater
In off state.
The oil temperature that temperature sensor 7 is used in test experience case 16, control device 17 is preset the 3rd temperature value with temperature
The degree detection temperature value of sensor 7 is compared, when the detected value of temperature sensor 7 is greater than or equal to preset temperature value, control dress
Put the heater stop heating in 17 control fuel tanks 12；When the detected value of temperature sensor 7 is less than preset temperature value, control
Heater in the control fuel tank 12 of device 17 continues to heat, untill preset value is reached.By above-mentioned control process, can be with
The oil temperature in experimental box 16 is set to maintain working temperature.
Further, if the control device 17 be additionally operable to the 4th temperature sensor 7 detection temperature be more than or
Equal to the 3rd preset temperature value of the control device, then improve first oil pump 10 simultaneously and second oil pump 14 runs
Speed, otherwise, first oil pump 1 and second oil pump 14 will be in the states of traveling at the uniform speed.
Control device 17 is made comparisons by by preset value with detected value, when preset value is greater than or equal to detected value, control
Device 17 controls the first oil pump 10 and the second oil pump 14 to maintain at the uniform velocity, the insulating oil in experimental box 16 and fuel tank 12 is at the uniform velocity followed
Ring；When preset value is less than detected value, control device 17 control the first oil pump 10 and the Accelerating running of the second oil pump 14 make experimental box
16 and fuel tank 12 in insulating oil accelerate circulation, and then the insulating oil in experimental box 16 is rapidly achieved preset temperature.
Further, the bottom of the experimental box 16 is provided with support 8.
From above technical scheme, this application provides a kind of experiment dress of test run operating mode setting of casing insulating properties
Put, temperature control equipment 19 respectively fills the detection temperature of the first temperature sensor 5 and second temperature sensor 6 and temperature control
The first preset temperature and the second preset temperature for putting 19 are made comparisons, when the detection temperature of temperature sensor is greater than or equal to temperature control
During the preset temperature of device processed 19, the control power supply 18 of temperature control equipment 19 stops powering heating wire 4；When temperature sensor
When detection temperature is less than the preset temperature of temperature control equipment 19, the control power supply 18 of temperature control equipment 19 continues to heating wire 4
Power supply.Control by temperature control equipment 19 to the working condition of heating wire 4, makes temperature in copper pipe 3 keep constant.Again by temperature
The collection of 19 pairs of interior insulation temperature of sleeve pipe 2 of the detection of three-temperature sensor 22 of degree control device and leakage current tester 21
The leakage current of detection, analyzes the insulating properties of sleeve pipe 2.The present apparatus can highly reduce the real operating environments of sleeve pipe, true simulation
The working condition of sleeve pipe, improves the accuracy of sleeve pipe insulating properties detection.
Invention described above implementation method is not intended to limit the scope of the present invention..
Claims (6)
1. a kind of experimental provision of test run operating mode setting of casing insulating properties, it is characterised in that including：Flange (1), sleeve pipe (2),
Copper pipe (3), heating wire (4), the first temperature sensor (5), second temperature sensor (6), experimental box (16), power supply (18), temperature
Degree control device (19), transformer (20), leakage current tester (21), three-temperature sensor (22)；
Described sleeve pipe (2) is wrapped in the outside of the copper pipe (3)；
The inwall of the sleeve pipe (2) between described sleeve pipe (2) and the copper pipe (3) is provided with the three-temperature sensor (22)；
The heating wire (4), first temperature sensor (5) and the second temperature sensing are provided with inside the copper pipe (2)
Device (6), first temperature sensor (5) on the inwall of the copper pipe (3) port, the second temperature sensor
(6) on the inwall of the copper pipe (3) center, the heating wire (4) is positioned at first temperature sensor (5) and described
The middle part of second temperature sensor (6)；
The temperature control equipment (19) respectively with the power supply (18), first temperature sensor (5), the second temperature
Sensor (6) and the three-temperature sensor (22) are connected；
The power supply (18) is connected by wire with the heating wire (4)；
The transformer (20) is connected by wire with the flange (1), the copper pipe (3) and the leakage current tester (21)
Connect；
The flange (1) sleeve pipe (2) below, is all put into the experimental box (16), to being put into the experimental box (16)
The bottom of described sleeve pipe (2) sealed；
Insulating oil is provided with the experimental box (16)；
First temperature sensor (5) and the second temperature sensor (6) are for detecting the temperature of the copper pipe (3) inwall
Degree；
The three-temperature sensor (22) is for detecting the temperature of described sleeve pipe (2) inwall；
The temperature control equipment (19) for gather first temperature sensor (5), the second temperature sensor (6) and
The temperature value of the three-temperature sensor (22), by first temperature sensor (5), the second temperature sensor (6)
The temperature value detected with the three-temperature sensor (22), respectively with the first preset temperature of the temperature control equipment (19)
Value, the second preset temperature value and the 3rd preset temperature value are compared, and according to comparative result, control the work of the power supply (18)
State, and then control the heated condition of the heating wire (4).
2. a kind of experimental provision of test run operating mode setting of casing insulating properties according to claim 1, it is characterised in that institute
Temperature control equipment (19) is stated if the temperature value for being additionally operable to the first temperature sensor (5) detection is pre- more than or equal to first
If temperature value, the temperature value of second temperature sensor (6) detection is more than or equal to the second preset temperature value, the 3rd temperature
The temperature value of degree sensor detection is more than or equal to the 3rd preset temperature value, then control the power supply (18) to power off；
Otherwise, the power supply (18) is controlled to be powered.
3. the experimental provision of a kind of test run operating mode setting of casing insulating properties according to claim 1, it is characterised in that also
Including：It is 4th temperature sensor (7), the first flexible pipe (9), the first oil pump (10), the second flexible pipe (11), fuel tank (12), the 3rd soft
Pipe (13), the second oil pump (14), the 4th flexible pipe (15) and control device (17)；
The experimental box (16) is connected by first flexible pipe (9) with first oil pump (10)；
First oil pump (10) is connected by second flexible pipe (11) with the fuel tank (12)；
The fuel tank (12) is connected by the 3rd flexible pipe (13) with second oil pump (14)；
Second oil pump (14) is connected by the 4th flexible pipe (15) with the experimental box (16)；
The control device (17) respectively with first oil pump (10), second oil pump (14), the 4th TEMP
Device (7) and the fuel tank (12) are connected；
Insulating oil and heater are provided with the fuel tank (12)；
4th temperature sensor (7) temperature oily for detecting the experimental box (16) interior insulation；
The control device (17) passes its described 4th temperature for gathering the temperature value of the 4th temperature sensor (7)
The temperature value of sensor (7) detection is compared with the 4th preset temperature value of control device (17), according to comparative result, controls institute
State the working condition of fuel tank (12) inner heating device；
The control device (17) passes its described 4th temperature for gathering the temperature value of the 4th temperature sensor (7)
The temperature value of sensor (7) detection is compared with the 4th preset temperature value of control device (17), according to comparative result, controls institute
State the working condition of the first oil pump (10) and second oil pump (14).
4. a kind of experimental provision of test run operating mode setting of casing insulating properties according to claim 3, it is characterised in that institute
Control device (17) is stated if being additionally operable to the temperature value of the 4th temperature sensor (7) detection less than the 4th preset temperature value,
Then control the heater in the fuel tank (12) in running order, otherwise, heater is in off state.
5. a kind of experimental provision of test run operating mode setting of casing insulating properties according to claim 3, it is characterised in that institute
Control device (17) is stated if the temperature for being additionally operable to the 4th temperature sensor (7) detection is less than or greater than the 4th preset temperature
Value, then start first oil pump (10) and second oil pump (14) simultaneously, otherwise, first oil pump (10) and described the
Two oil pumps (14) will be in off state.
6. a kind of experimental provision of test run operating mode setting of casing insulating properties according to claim 1, it is characterised in that institute
The bottom for stating experimental box (16) is provided with support (8).
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| CN108872815A (en) * | 2018-07-05 | 2018-11-23 | 天津大学 | Direct current cables insulating materials high temperature ageing based on Composite Field assesses device |
| CN108896807A (en) * | 2018-06-01 | 2018-11-27 | 清华大学深圳研究生院 | Bushing |
| CN108957254A (en) * | 2018-06-05 | 2018-12-07 | 沈阳工业大学 | Insulator surface flashover characteristics experimental provision and method under a kind of electric heating Composite Field |
| CN109828191A (en) * | 2019-03-07 | 2019-05-31 | 国网辽宁省电力有限公司电力科学研究院 | The test device and method of insulating sleeve insulation performance under a kind of different temperatures operating condition |
| CN111837463A (en) * | 2017-12-30 | 2020-10-27 | Abb电网瑞士股份公司 | System using sensors in transformer cooling circuit |
| CN113917292A (en) * | 2021-09-14 | 2022-01-11 | 西安理工大学 | Insulation performance simulation detection device of high-voltage direct-current transmission line |
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Effective date of registration: 20200214 Address after: Yunda economic and Technological Development Zone in Yunnan province Kunming city 650217 West Road No. 105 Patentee after: Electric Power Research Institute of Yunnan Power System Ltd Address before: Yunda economic and Technological Development Zone in Yunnan province Kunming city 650217 West Road No. 105 Co-patentee before: SOUTHWEST JIAOTONG University Patentee before: Electric Power Research Institute of Yunnan Power System Ltd |