CN101614771A - Detection method of digital substation PT secondary nuclear phase checking - Google Patents
Detection method of digital substation PT secondary nuclear phase checking Download PDFInfo
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- CN101614771A CN101614771A CN200910069841A CN200910069841A CN101614771A CN 101614771 A CN101614771 A CN 101614771A CN 200910069841 A CN200910069841 A CN 200910069841A CN 200910069841 A CN200910069841 A CN 200910069841A CN 101614771 A CN101614771 A CN 101614771A
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Abstract
The present invention relates to a kind of detection method of digital substation PT secondary nuclear phase checking, it comprises same electric pressure nuclear phase: use electronic type voltage transformer or digital fault oscillograph at same electric pressure combiner place nuclear phase; Nuclear phase between the different electric pressures: at tranformer protection dish place nuclear phase; adopt angular difference and the difference in magnitude of tranformer protection dish between the charged back measurement of each electric pressure bus and demonstration high-pressure side and medium voltage side, high-pressure side and low-pressure side; and the nuclear phase of this electric pressure of medium voltage side, low-pressure side is realized by step (1); nuclear phase when thus, finishing whole digital transformer substation and start.The present invention satisfies the digital substation PT secondary nuclear phase and detects demand, and have detect accurately, advantages of simple operation.
Description
Technical field
The present invention relates to substation PT secondary nuclear phase detection method, particularly a kind of detection method of digital substation PT secondary nuclear phase checking.
Background technology
At present, in the transformer station that adopts electromagnetic type or capacitance type potential transformer (PT), the step of carrying out PT secondary nuclear phase and phasing is: 1. the high-pressure side power supply filled A phase power supply, and measuring the A phase voltage at the PT secondary with multimeter is 57.7V, and other two-phases are no-voltage then; 2. the high-pressure side power supply filled B phase power supply, and measuring the B phase voltage at the PT secondary with multimeter is 57.7V, and other two-phases are no-voltage then; 3. the high-pressure side power supply filled three-phase supply, the PT secondary with multimeter measure A, B, the C phase voltage is 57.7V, measures U with multimeter
AB, U
BC, U
CARespectively be 100V; 4. be incorporated into the high-pressure side bus connection switch-4 with-5PT secondary nuclear phase, measure U with multimeter
Aa=0V, U
Ab=100V, U
Ac=100V, U
Ba=100V, U
Bb=0V, U
Bc=100V, U
Ca=100V, U
Cb=100V, U
Cc=0V; 5. to after each main-transformer charging five times, press and low-side switch in closing, need do following nuclear phase work: 1) measure high pressure centering pressure and measure U
Aa=0V, U
Ab=100V, U
Ac=100V, U
Ba=100V, U
Bb=0V, U
Bc=100V, U
Ca=100V, U
Cb=100V, U
Cc=0V; 2) measure high pressure to low pressure measurement U
Aa=0V, U
Ab=100V, U
Ac=100V, U
Ba=100V, U
Bb=0V, U
Bc=100V, U
Ca=100V, U
Cb=100V, U
Cc=0V; 3) be incorporated into medium voltage side, low-pressure side mother be associated in separately-4 with-5PT secondary nuclear phase, measure U with multimeter
Aa=0V, U
Ab=100V, U
Ac=100V, U
Ba=100V, U
Bb=0V, U
Bc=100V, U
Ca=100V, U
Cb=100V, U
Cc=0V; 4) each main transformer is with each section bus respectively and is disconnected female connection, at medium voltage side, this side of low-pressure side-4 and-5PT secondary nuclear phase, measures U with multimeter
Aa=0V, U
Ab=100V, U
Ac=100V, U
Ba=100V, U
Bb=0V, U
Bc=100V, U
Ca=100V, U
Cb=100V, U
Cc=0V.As seen, conventional electromagnetic type or capacitance type potential transformer are to adopt multimeter and phase-sequence meter to determine phase sequence, the phase place of transformer station, finish nuclear phase work.
But, that present digital transformer substation adopts is electronic type voltage transformer (EVT), this voltage transformer (VT) can't be determined phase sequence, the phase place of transformer station with multimeter and phase-sequence meter, therefore can not adopt the nuclear phase mode of conventional electromagnetic type or capacitance type potential transformer to finish nuclear phase work.Therefore, finish this work must adopt new way to solve this problem.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of detection method of digital substation PT secondary nuclear phase checking is provided, it satisfies the digital substation PT secondary nuclear phase and detects demand, and have detect accurately, advantages of simple operation.
The present invention solves its technical matters and is achieved through the following technical solutions:
2. detection method of digital substation PT secondary nuclear phase checking is characterized in that: may further comprise the steps:
(1), the nuclear phase of same electric pressure: use electronic type voltage transformer or digital fault oscillograph at same electric pressure combiner place nuclear phase, concrete steps are:
One road power supply phase-splitting of same voltage gradation fill enter the station in behind the bus, use electronic type voltage transformer or digital fault oscillograph to check U respectively at the combiner place
A, U
B, U
CEach phase voltage and three-phase voltage amplitude, phase sequence correctness;
After the female connection of same voltage gradation drops into, use electronic type voltage transformer or digital fault oscillograph to check its four bus and five bus U at the combiner place
A, U
B, U
CThe phase differential of each phase voltage amplitude and two groups of voltages;
Same voltage gradation two road power supplys fill enter the station in behind the bus, use electronic type voltage transformer or digital fault oscillograph to check its four bus and five bus U at the combiner place
A, U
B, U
CEach phase voltage amplitude and two groups of voltage phase differences are finished same electric pressure nuclear phase;
(2), the nuclear phase between the different electric pressures: at tranformer protection dish place nuclear phase; adopt angular difference and the difference in magnitude of tranformer protection dish between the charged back measurement of each electric pressure bus and demonstration high-pressure side and medium voltage side, high-pressure side and low-pressure side; and the nuclear phase of this electric pressure of medium voltage side, low-pressure side is realized by step (1); nuclear phase when thus, finishing whole digital transformer substation and start.
Advantage of the present invention and beneficial effect are:
Detection method of digital substation PT secondary nuclear phase checking of the present invention, through field adjustable at Chen Fu 220kV digital transformer substation, its function is checked through the secondary energizing test, satisfy nuclear phase and phasing requirement, and nuclear phase and phasing have obtained success in detecting when Chen Fu 220kV digital transformer substation puts into operation, and have detect accurately, advantages of simple operation.
Embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of detection method of digital substation PT secondary nuclear phase checking, present embodiment are that example describes with Chen Fu 220kV digital transformer substation, and it is realized by following steps:
(1) same electric pressure nuclear phase: use electronic voltage mutual inductor or digital fault oscillograph at same electric pressure combiner place nuclear phase.Wherein, the electronic voltage mutual inductor possesses angle and function effective value between measurement and the demonstration two-way voltage.Digital fault oscillograph has the phase place that shows between two groups of voltages and the function of effective value.
The concrete step that detects is:
220kV one road power supply phase-splitting fill enter the station in behind the bus, adopt the electronic voltage mutual inductor to check U respectively at the combiner place
A, U
B, U
CEach phase voltage and three-phase voltage amplitude, phase sequence correctness.
After the female connection of 220kV drops into, adopt the electronic voltage mutual inductor to check 4 buses and 5 bus U at the combiner place
A, U
B, U
CThe phase differential of each phase voltage and two groups of voltages.
220kV two road power supplys fill enter the station in behind the bus, adopt the electronic voltage mutual inductor to check 4 buses and 5 bus U at the combiner place
A, U
B, U
CEach phase voltage amplitude and two groups of voltage phase differences.
Method is the same when utilizing digital fault oscillograph.When adopting digital fault oscillograph, also can judge by the waveform of observing two-way voltage.
(2) nuclear phase between the different electric pressures: at tranformer protection dish place nuclear phase.Adopt the tranformer protection dish to measure and show angular difference and difference in magnitude between high-pressure side and medium voltage side, high-pressure side and the low-pressure side, and the nuclear phase of this electric pressure of medium voltage side, low-pressure side is by step (1) realization in the charged back of each electric pressure bus.Thus, the nuclear phase work when finishing whole digital transformer substation and starting, and can finish phasing work simultaneously.
Claims (1)
1. detection method of digital substation PT secondary nuclear phase checking is characterized in that: may further comprise the steps:
(1), the nuclear phase of same electric pressure: use electronic type voltage transformer or digital fault oscillograph at same electric pressure combiner place nuclear phase, concrete steps are:
One road power supply phase-splitting of same voltage gradation fill enter the station in behind the bus, use electronic type voltage transformer or digital fault oscillograph to check U respectively at the combiner place
A, U
B, U
CEach phase voltage and three-phase voltage amplitude, phase sequence correctness;
After the female connection of same voltage gradation drops into, use electronic type voltage transformer or digital fault oscillograph to check its four bus and five bus U at the combiner place
A, U
B, U
CThe phase differential of each phase voltage amplitude and two groups of voltages;
Same voltage gradation two road power supplys fill enter the station in behind the bus, use electronic type voltage transformer or digital fault oscillograph to check its four bus and five bus U at the combiner place
A, U
B, U
CEach phase voltage amplitude and two groups of voltage phase differences are finished same electric pressure nuclear phase;
(2), the nuclear phase between the different electric pressures: at tranformer protection dish place nuclear phase; adopt angular difference and the difference in magnitude of tranformer protection dish between the charged back measurement of each electric pressure bus and demonstration high-pressure side and medium voltage side, high-pressure side and low-pressure side; and the nuclear phase of this electric pressure of medium voltage side, low-pressure side is realized by step (1); nuclear phase when thus, finishing whole digital transformer substation and start.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100698417A CN101614771B (en) | 2009-07-22 | 2009-07-22 | Detection method of digital substation PT secondary phase sequence verification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100698417A CN101614771B (en) | 2009-07-22 | 2009-07-22 | Detection method of digital substation PT secondary phase sequence verification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614771A true CN101614771A (en) | 2009-12-30 |
| CN101614771B CN101614771B (en) | 2011-04-06 |
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|---|---|---|---|
| CN2009100698417A Expired - Fee Related CN101614771B (en) | 2009-07-22 | 2009-07-22 | Detection method of digital substation PT secondary phase sequence verification |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN102279323A (en) * | 2011-04-29 | 2011-12-14 | 河南省电力公司鹤壁供电公司 | Secondary accurate phasing method for intelligent transformer station |
| CN103454553A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Secondary side phase checking device of voltage transformer |
| CN103852641A (en) * | 2012-12-04 | 2014-06-11 | 天津市电力公司 | Novel anti-interference electric transmission line phasing tester |
| CN105182156A (en) * | 2015-09-05 | 2015-12-23 | 国家电网公司 | Waveform visualization based same-period loop polarity detection apparatus and detection method |
| CN106772194A (en) * | 2016-12-26 | 2017-05-31 | 国网山东省电力公司青岛供电公司 | A kind of voltage transformer secondary voltage nuclear-phase method, device and detection means |
| CN108376982A (en) * | 2017-11-24 | 2018-08-07 | 上海泰豪迈能能源科技有限公司 | Load recognition methods and the device of phase sequence |
| CN110854925A (en) * | 2019-11-04 | 2020-02-28 | 中国能源建设集团华东电力试验研究院有限公司 | One-time voltage-on synchronous nuclear phase inspection system and inspection method for electrical system |
| CN111521888A (en) * | 2020-05-07 | 2020-08-11 | 西安热工研究院有限公司 | High-voltage station bus power supply phase checking system and method |
| CN112305484A (en) * | 2020-09-16 | 2021-02-02 | 国网河北省电力有限公司电力科学研究院 | Method and device for judging harmonic measurement accuracy of capacitor voltage transformer |
| CN113325221A (en) * | 2021-07-02 | 2021-08-31 | 山东钢铁股份有限公司 | Method for substation bus power transmission and power supply phase checking |
| CN113325236A (en) * | 2021-07-02 | 2021-08-31 | 山东钢铁股份有限公司 | Power transmission phase checking method for double-bus double-section wiring GIS cabinet power supply |
-
2009
- 2009-07-22 CN CN2009100698417A patent/CN101614771B/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893662A (en) * | 2010-07-23 | 2010-11-24 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN101893662B (en) * | 2010-07-23 | 2013-08-07 | 江苏省电力公司常州供电公司 | Nuclear phase method for digital transformer substation |
| CN102279323A (en) * | 2011-04-29 | 2011-12-14 | 河南省电力公司鹤壁供电公司 | Secondary accurate phasing method for intelligent transformer station |
| CN102279323B (en) * | 2011-04-29 | 2013-01-02 | 河南省电力公司鹤壁供电公司 | Secondary accurate phasing method for intelligent transformer station |
| CN103852641A (en) * | 2012-12-04 | 2014-06-11 | 天津市电力公司 | Novel anti-interference electric transmission line phasing tester |
| CN103454553A (en) * | 2013-08-23 | 2013-12-18 | 国家电网公司 | Secondary side phase checking device of voltage transformer |
| CN105182156B (en) * | 2015-09-05 | 2018-02-16 | 国家电网公司 | Based on waveform visualization synchronous loop device for detecting polarity and detection method |
| CN105182156A (en) * | 2015-09-05 | 2015-12-23 | 国家电网公司 | Waveform visualization based same-period loop polarity detection apparatus and detection method |
| CN106772194A (en) * | 2016-12-26 | 2017-05-31 | 国网山东省电力公司青岛供电公司 | A kind of voltage transformer secondary voltage nuclear-phase method, device and detection means |
| CN108376982A (en) * | 2017-11-24 | 2018-08-07 | 上海泰豪迈能能源科技有限公司 | Load recognition methods and the device of phase sequence |
| CN110854925A (en) * | 2019-11-04 | 2020-02-28 | 中国能源建设集团华东电力试验研究院有限公司 | One-time voltage-on synchronous nuclear phase inspection system and inspection method for electrical system |
| CN111521888A (en) * | 2020-05-07 | 2020-08-11 | 西安热工研究院有限公司 | High-voltage station bus power supply phase checking system and method |
| CN111521888B (en) * | 2020-05-07 | 2022-07-08 | 西安热工研究院有限公司 | High-voltage station bus power supply phase checking system and method |
| CN112305484A (en) * | 2020-09-16 | 2021-02-02 | 国网河北省电力有限公司电力科学研究院 | Method and device for judging harmonic measurement accuracy of capacitor voltage transformer |
| CN112305484B (en) * | 2020-09-16 | 2023-02-28 | 国网河北省电力有限公司电力科学研究院 | Method and device for judging harmonic measurement accuracy of capacitor voltage transformer |
| CN113325221A (en) * | 2021-07-02 | 2021-08-31 | 山东钢铁股份有限公司 | Method for substation bus power transmission and power supply phase checking |
| CN113325236A (en) * | 2021-07-02 | 2021-08-31 | 山东钢铁股份有限公司 | Power transmission phase checking method for double-bus double-section wiring GIS cabinet power supply |
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| Publication number | Publication date |
|---|---|
| CN101614771B (en) | 2011-04-06 |
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| C14 | Grant of patent or utility model | ||
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121127 |
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Effective date of registration: 20121127 Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: Tianjin Electric Power Corp. Patentee after: State Grid Corporation of China Address before: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee before: Tianjin Electric Power Corp. |
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