CN106597134A - Intelligent distribution network secondary system phase sequence automatic check apparatus - Google Patents
Intelligent distribution network secondary system phase sequence automatic check apparatus Download PDFInfo
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- CN106597134A CN106597134A CN201611267745.XA CN201611267745A CN106597134A CN 106597134 A CN106597134 A CN 106597134A CN 201611267745 A CN201611267745 A CN 201611267745A CN 106597134 A CN106597134 A CN 106597134A
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- Prior art keywords
- current
- phase
- voltage
- harvester
- phase sequence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/18—Indicating phase sequence; Indicating synchronism
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses an intelligent distribution network secondary system phase sequence automatic check apparatus and relates to the technical field of power equipment. The intelligent distribution network secondary system phase sequence automatic check apparatus comprises a power supply apparatus, a voltage transformer, a current transformer, an acquisition apparatus, an A/D conversion apparatus, a processor and a display apparatus. After a distribution automation terminal is installed, when the phase sequence of phase wires is checked, phase wires to be detected of the voltage transformer, the current transformer and the automation terminal are connected, a lead-out wire of the acquisition apparatus is connected with the voltage transformer and the current transformer, after connection is completed, as long as the apparatus is started, three-phase current values, three-phase current phase values and voltage phase values of the phase wires to be detected of the automation terminal can be acquired, whether the phase sequence is correct can be determined by performing integrated determination according to acquired parameters, and thus phase check work of the automation terminal is completed. By use of the apparatus provided by the invention, the operation steps of check and acceptance are simplified, and the check and acceptance efficiency is improved.
Description
Technical field
The present invention relates to electrical equipment technical field, more particularly to a kind of intelligent network distribution electrical secondary system phase sequence automatic checking
Device.
Background technology
As State Grid Corporation of China is improved constantly to distribution fine-grained management level requirement, it is the reliability for improving supplying power allocation
Property, distribution automation specialized management level is improved, therefore the new checking and accepting for installing distribution power automation terminal device is just seemed
It is particularly important.After distribution power automation terminal in-site installation is finished, need to carry out secondary circuit inspection, telemetry verification etc. and test
Knock off work.As current transformer is all that job site is installed, during examination, current transformer is all installed, and secondary line has connect
It is good.Current transformer, the neutral point of voltage transformer are connected with each phase line, want to check the voltage x current of each phase core,
Electric current, each phase core of voltage and neutral point core must be disconnected, this undoubtedly increases the difficulty of checking and accepting, greatly increases
The checking and accepting time, reduce checking and accepting efficiency.
Original technology needs the quality of power supply according to distribution power automation terminal device when voltage x current secondary connection is checked
The data such as active power, reactive power and power factor that monitoring shows, judge that voltage current transformer secondary connection is correct
Whether, when there is wiring error, need according to survey tools such as circuit tester, pincerlike phase current tables using the artificial side drawn
Method enters the judgement of line phase, and the method is time-consuming more, and decision method is complicated, inefficiency.
The content of the invention
The technical problem to be solved in the present invention is for above-mentioned the deficiencies in the prior art, there is provided a kind of secondary system of intelligent network distribution
System phase sequence automatic checking device, solves that checking and accepting difficulty is big, ineffective problem, with checking and accepting simple to operate, work
The characteristics of efficiency high.
To solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of intelligent network distribution electrical secondary system phase sequence
Automatic checking device, including supply unit, voltage transformer, current transformer, harvester, A/D conversion equipments, processor and
Display device；Voltage transformer and harvester connection, voltage transformer are used to change voltage, three-phase voltage to be measured are converted into
The voltage signal for being available for harvester to gather；Current transformer and harvester connection, current transformer are used for switching current, will
Treat that measuring three-phase current is converted into the current signal for being available for harvester to gather；Harvester and the connection of A/D conversion equipments, A/D turn
The analogue signal that harvester is gathered is converted into digital signal by changing device；A/D conversion equipments and processor connection, display device
Connect with processor.
Preferably, current transformer is pincerlike opening current transformer, is open current transformer conveniently from pincer and matches somebody with somebody
The connection of electric automation terminal, easily operates.
Preferably, display device is LCDs, and for display processing result, LCDs can intuitively by knot
Really shown, facilitate staff to obtain result.
Preferably, supply unit includes transforming circuit, is that single unit system is powered, and the transforming circuit in supply unit can
To meet the needs of the different voltages of needs in single unit system.
Preferably, harvester includes voltage collecting device and current collecting device, and in the design, harvester is wrapped simultaneously
Containing voltage collecting device and current collecting device, the electric current of distribution power automation terminal and voltage signal can be adopted simultaneously
Collection, simpler, easy operation when making line using this device, while harvester being capable of collection voltages and electric current letter simultaneously
Number, reduce the number of components and parts used in device, reduces cost.
Preferably, current collecting device includes 4 road current collection circuits, and this device can enter to 4 road current signals simultaneously
Row verification, it is to avoid can only test 1 tunnel every time needs to repeat wiring and take out stitches, and improves the efficiency of verification test.
Using the beneficial effect produced by above-mentioned technical proposal it is：The present invention is by designing intelligent network distribution electrical secondary system phase
Sequence automatic checking device, when checking to the phase sequence of phase line after distribution power automation terminal installation, by voltage transformer,
Current transformer and automatization terminal phase line to be measured are attached, then by the lead-out wire and voltage transformer of harvester, electricity
Current transformer is attached, after the completion of connection, opening device can collection automatization terminal phase line to be measured three-phase electricity flow valuve, three
Phase current phase value and voltage-phase value, carry out comprehensive descision according to the parameter of collection, you can judge whether phase sequence is correct, from
And the nuclear phase for completing automatization terminal works, the operating procedure of examination is simplified by using this device, improve and check and accept efficiency.
Description of the drawings
Fig. 1 is the theory diagram of the present invention.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
As shown in figure 1, for the theory diagram of intelligent network distribution electrical secondary system phase sequence automatic checking device of the present invention, a kind of intelligence
Distribution electrical secondary system phase sequence automatic checking device, including supply unit, voltage transformer, current transformer, harvester, A/D
Conversion equipment, processor and display device；Voltage transformer and harvester connection, voltage transformer are used to change voltage, will
Three-phase voltage to be measured is converted into the voltage signal for being available for harvester to gather；Current transformer and harvester connection, electric current are mutual
Sensor is used for switching current, will treat that measuring three-phase current is converted into the current signal for being available for harvester to gather；Harvester and A/D
Conversion equipment connects, and the analogue signal that harvester is gathered is converted into digital signal by A/D conversion equipments；A/D conversion equipments and
Processor connects, and display device and processor connect.
When checking to the phase sequence of phase line after distribution power automation terminal installation, will be voltage transformer, electric current mutual
Sensor and automatization terminal phase line to be measured are attached, then by the lead-out wire and voltage transformer of harvester, Current Mutual Inductance
Device is attached, and the electric current and voltage of distribution power automation terminal are converted by the effect of current transformer and voltage transformer,
Conversion can make the signal that harvester is gathered, and after the completion of connection, opening device can collection automatization terminal phase line to be measured
Three-phase electricity flow valuve, three-phase current phase value and voltage-phase value, comprehensive descision is carried out according to the parameter of collection, you can judge
Whether phase sequence is correct, so as to the nuclear phase for completing automatization terminal works.The operation step of examination can be simplified by using this device
Suddenly, improve and check and accept efficiency.
Current transformer is pincerlike opening current transformer, is open current transformer conveniently and power distribution automation from pincerlike
The connection of terminal, easily operates.
Display device is LCDs, and for display processing result, result intuitively can be carried out by LCDs
Show, facilitate staff to obtain result.
Supply unit includes transforming circuit, and in the transforming circuit in supply unit can meet single unit system, needs are not
With the needs of voltage.
Harvester includes voltage collecting device and current collecting device, and in the design, harvester is adopted comprising voltage simultaneously
Acquisition means and current collecting device, can carry out while gather, adopting this to the electric current of distribution power automation terminal and voltage signal
Simpler, easy operation when device makes line, at the same harvester can collection voltages and current signal simultaneously, reduce device
Used in components and parts number, reduces cost.
Current collecting device includes 4 road current collection circuits, and this device can be checked to 4 road current signals simultaneously,
Avoiding can only testing every time 1 tunnel needs to repeat wiring and takes out stitches, and improves the efficiency that verification is tested.
After using above-mentioned technical proposal, when checking to the phase sequence of phase line after distribution power automation terminal installation,
Phase line voltage transformer, current transformer and automatization terminal to be measured is attached, then by the lead-out wire of harvester and
Voltage transformer, current transformer are attached, and after the completion of connection, opening device can gather automatization terminal phase line to be measured
Three-phase electricity flow valuve, three-phase current phase value and voltage-phase value, carry out comprehensive descision according to the parameter of collection, you can judge phase
Whether sequence is correct, so as to the nuclear phase for completing automatization terminal works, simplifies the operating procedure of examination by using this device, carries
It is high to check and accept efficiency.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of intelligent network distribution electrical secondary system phase sequence automatic checking device, it is characterised in that：Including supply unit, mutual induction of voltage
Device, current transformer, harvester, A/D conversion equipments, processor and display device；Voltage transformer and harvester connection,
Voltage transformer is used to change voltage, the voltage signal that three-phase voltage to be measured is converted into being available for harvester to gather；Electric current is mutual
Sensor and harvester connection, current transformer are used for switching current, will treat that measuring three-phase current is converted into being available for harvester to adopt
The current signal of collection；Harvester and the connection of A/D conversion equipments, the analogue signal that harvester is gathered by A/D conversion equipments turn
Change digital signal into；A/D conversion equipments and processor connection, display device and processor connection.
2. intelligent network distribution electrical secondary system phase sequence automatic checking device according to claim 1, it is characterised in that：The electric current
Transformer is pincerlike opening current transformer.
3. intelligent network distribution electrical secondary system phase sequence automatic checking device according to claim 1, it is characterised in that：The display
Device is LCDs, for display processing result.
4. intelligent network distribution electrical secondary system phase sequence automatic checking device according to claim 1, it is characterised in that：The power supply
Device includes transforming circuit.
5. intelligent network distribution electrical secondary system phase sequence automatic checking device according to claim 1, it is characterised in that：The collection
Device includes voltage collecting device and current collecting device.
6. intelligent network distribution electrical secondary system phase sequence automatic checking device according to claim 5, it is characterised in that：The electric current
Harvester includes 4 road current collection circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267745.XA CN106597134A (en) | 2016-12-31 | 2016-12-31 | Intelligent distribution network secondary system phase sequence automatic check apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611267745.XA CN106597134A (en) | 2016-12-31 | 2016-12-31 | Intelligent distribution network secondary system phase sequence automatic check apparatus |
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| Publication Number | Publication Date |
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| CN106597134A true CN106597134A (en) | 2017-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611267745.XA Pending CN106597134A (en) | 2016-12-31 | 2016-12-31 | Intelligent distribution network secondary system phase sequence automatic check apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656234A (en) * | 2017-09-11 | 2018-02-02 | 国网山东省电力公司烟台供电公司 | A kind of phase three-wire three high-voltage electric-energy meter online test method and device |
| CN108333441A (en) * | 2018-05-03 | 2018-07-27 | 广东电网有限责任公司 | Secondary nuclear phase device and system |
| CN110161326A (en) * | 2019-04-26 | 2019-08-23 | 云南电网有限责任公司电力科学研究院 | A kind of more network live nuclear-phase methods and system at a distance |
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| CN101458275A (en) * | 2008-11-06 | 2009-06-17 | 上海电器科学研究所（集团）有限公司 | High temperature resistant three phase intermediate frequency electric quantity acquisition module |
| CN201811998U (en) * | 2010-09-14 | 2011-04-27 | 徐国治 | Three-phase alternating current (AC) phase sequence detecting device |
| CN201845054U (en) * | 2010-09-15 | 2011-05-25 | 马万超 | Multifunctional digital phase detection measuring instrument |
| CN105137365A (en) * | 2015-08-31 | 2015-12-09 | 湖南省普安建设工程有限公司 | Three-phase power monitoring system and method |
| CN105629084A (en) * | 2015-12-27 | 2016-06-01 | 国家电网公司 | Phase-checking device special for electric power |
| CN106249075A (en) * | 2016-07-22 | 2016-12-21 | 安徽亚辉电气自动化有限公司 | A kind of control system of multifunctional electric meter |
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2016
- 2016-12-31 CN CN201611267745.XA patent/CN106597134A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101458275A (en) * | 2008-11-06 | 2009-06-17 | 上海电器科学研究所（集团）有限公司 | High temperature resistant three phase intermediate frequency electric quantity acquisition module |
| CN201811998U (en) * | 2010-09-14 | 2011-04-27 | 徐国治 | Three-phase alternating current (AC) phase sequence detecting device |
| CN201845054U (en) * | 2010-09-15 | 2011-05-25 | 马万超 | Multifunctional digital phase detection measuring instrument |
| CN105137365A (en) * | 2015-08-31 | 2015-12-09 | 湖南省普安建设工程有限公司 | Three-phase power monitoring system and method |
| CN105629084A (en) * | 2015-12-27 | 2016-06-01 | 国家电网公司 | Phase-checking device special for electric power |
| CN106249075A (en) * | 2016-07-22 | 2016-12-21 | 安徽亚辉电气自动化有限公司 | A kind of control system of multifunctional electric meter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656234A (en) * | 2017-09-11 | 2018-02-02 | 国网山东省电力公司烟台供电公司 | A kind of phase three-wire three high-voltage electric-energy meter online test method and device |
| CN108333441A (en) * | 2018-05-03 | 2018-07-27 | 广东电网有限责任公司 | Secondary nuclear phase device and system |
| CN110161326A (en) * | 2019-04-26 | 2019-08-23 | 云南电网有限责任公司电力科学研究院 | A kind of more network live nuclear-phase methods and system at a distance |
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Application publication date: 20170426 |