CN103257334A - 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method - Google Patents
6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method Download PDFInfo
- Publication number
- CN103257334A CN103257334A CN 201310179499 CN201310179499A CN103257334A CN 103257334 A CN103257334 A CN 103257334A CN 201310179499 CN201310179499 CN 201310179499 CN 201310179499 A CN201310179499 A CN 201310179499A CN 103257334 A CN103257334 A CN 103257334A
- Authority
- CN
- China
- Prior art keywords
- potential transformer
- electromagnetic potential
- voltage
- phase
- electro
- 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
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and a using method. The 6-35KV electro-magnetic voltage transformer quick diagnosing instrument comprises a diagnosing instrument shell body. Three detecting voltmeters and a high voltage output adjusting device are arranged inside the diagnosing instrument shell body. Detecting outlet wires are sequentially arranged on the detecting voltmeters. A high voltage lead is arranged on the high voltage output adjusting device, and the high voltage output adjusting device is composed of a testing transformer and a voltage adjusting device of the testing transformer. The using method comprises the steps that the differences of all coil bodies of a secondary coil of the electro-magnetic voltage transformer and the differences of opening triangular coil bodies of the secondary coil of the electro-magnetic voltage transformer are detected respectively, and whether the electro-magnetic voltage transformer can be placed in service is judged according to the voltage value of the secondary same coil and the differences among three phases of the secondary coil. The 6-35KV electro-magnetic voltage transformer quick diagnosing instrument is simple in structure, saving in material, economical, practical and easy to realize, and has good using and popularizing value.
Description
Technical field
The invention belongs to the technical field of operation of power networks managing failures diagnosis, particularly a kind of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument and using method.
Background technology
As everyone knows, the electrical network of a side joint of electromagnetic potential transformer, secondary side joint be the secondary coil of measurement instrument and relay, impedance is all very big.The high-voltage fuse type that has that 6 ~ 35KV electromagnetic potential transformer primary side often connects insures, in operational process, be subjected to the influence of various factors, voltage transformer (VT) one sub-high pressure fuse melting phenomenon often appears, in order to search high pressure fuse melting reason, according to " preventive trial rules " requirement, need carry out the test (as: megger test of a plurality of projects to electromagnetic potential transformer, once test with the Secondary Winding direct current resistance, the no-load voltage ratio test, medium decreases test, AC voltage withstand test, insulating oil is withstand voltage, zero load etc.), so often need to take a long time, and some test event voltage ratio is lower, can not reflect the running status operating mode of electromagnetic potential transformer truly.
Summary of the invention
In order to diagnose electromagnetic potential transformer whether to have defective fast, determine more fast whether electromagnetic potential transformer can put into operation, the invention provides a kind of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument and using method.
A kind of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument, comprise the diagnostic equipment housing, 3 detection voltage tables and high pressure output regulating device is set in the described diagnostic equipment housing, sets gradually the detection outlet on the described detection voltage table, on the described high pressure output regulating device high-voltage connection is set.
Described high pressure output regulating device is made up of testing transformer and regulator thereof.
A kind of using method of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument:
(1), the high-voltage connection of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument is connected on the primary side of electromagnetic potential transformer three-phase, the electromagnetic potential transformer fault is examined instrument and is detected the secondary side that outlet is connected on the electromagnetic potential transformer three-phase.
(2), regulate high pressure output regulating device, make that output voltage is the working voltage value of national manufacturer's standard rules regulation, observe the electromagnetic potential transformer fault and examine instrument detection voltage table, judge according to table meter indicated value whether the three-phase of first winding 1a1n of electromagnetic potential transformer Secondary Winding there are differences, and the record difference.
(3), utilize above-mentioned steps, measure the difference of the open delta winding dadn of the difference of each winding 2a2n, 3a3n of electromagnetic potential transformer Secondary Winding and electromagnetic potential transformer Secondary Winding respectively.
(4), according to magnitude of voltage and the three alternate differences thereof of the identical winding of secondary, utilize the requirement of " three than method " and rules, if the three-phase voltage value is near 57.7V, 33.3V, illustrate that then electromagnetic potential transformer can come into operation, to deduct the minimum value difference bigger if the three-phase voltage value obviously departs from 57.7V, 33.3V or three-phase maximal value, illustrates that then there is fault in electromagnetic potential transformer.
6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument of the present invention, comprise the diagnostic equipment housing, 3 detection voltage tables and high pressure output regulating device is set in the described diagnostic equipment housing, set gradually the detection outlet on the described detection voltage table, on the described high pressure output regulating device high-voltage connection is set, described high pressure output regulating device is made up of testing transformer and regulator thereof, during use, high-voltage connection is connected on the primary side of electromagnetic potential transformer, the electromagnetic potential transformer fault is examined instrument and is detected the secondary side that outlet is connected on electromagnetic potential transformer, regulate high pressure output regulating device, make that output voltage is working voltage value 10000v or 35000v or 6000v, observe the electromagnetic potential transformer fault and examine instrument detection voltage table, judge according to table meter indicated value whether the 1a1n three-phase there are differences, and the record difference.Utilize above-mentioned step, measure the difference of 2a2n, 3a3n, dadn respectively.According to magnitude of voltage and the three alternate differences thereof of the identical winding of secondary, judge whether this electromagnetic potential transformer can put into operation.The present invention can be effectively and rapidly to the diagnosing malfunction of the electromagnetic potential transformer of 6 ~ 35KV electric pressure, judge whether it can put into operation, and simple in structure, materials economize, economical and practical, realize easily, have good value for applications.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further described:
Fig. 1 is 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument structured flowchart of the present invention.
Embodiment
As shown in Figure 1,6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument of the present invention, comprise diagnostic equipment housing 1,3 detection voltage tables 2 and high pressure output regulating device 3 is set in the described diagnostic equipment housing 1, set gradually on the described detection voltage table 2 and detect outlet 4, on the described high pressure output regulating device 3 high-voltage connection 5 is set, described high pressure output regulating device 3 is made up of testing transformer and regulator thereof.
A kind of using method of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument:
(1), the high-voltage connection of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument is connected on the primary side of electromagnetic potential transformer three-phase, the electromagnetic potential transformer fault is examined instrument and is detected the secondary side that outlet is connected on the electromagnetic potential transformer three-phase.
(2), regulate high pressure output regulating device, make that output voltage is the working voltage value of national manufacturer's standard rules regulation, observe the electromagnetic potential transformer fault and examine instrument detection voltage table, judge according to table meter indicated value whether the three-phase of first winding 1a1n of electromagnetic potential transformer Secondary Winding there are differences, and the record difference.
(3), utilize above-mentioned steps, measure the difference of the open delta winding dadn of the difference of each winding 2a2n, 3a3n of electromagnetic potential transformer Secondary Winding and electromagnetic potential transformer Secondary Winding respectively.
(4), according to magnitude of voltage and the three alternate differences thereof of the identical winding of secondary, utilize the requirement of " three than method " and rules, if the three-phase voltage value is near 57.7V, 33.3V, illustrate that then electromagnetic potential transformer can come into operation, to deduct the minimum value difference bigger if the three-phase voltage value obviously departs from 57.7V, 33.3V or three-phase maximal value, illustrates that then there is fault in electromagnetic potential transformer.
Country's manufacturer's standard rules regulation:
35000v/√3/100v/√3/100v/√3/100v/3
10000v/√3/100v/√3/100v/√3/100v/3
6000v/√3/100v/√3/100v/√3/100v/3
6 ~ 35kV electromagnetic potential transformer quick diagnosis instrument of the present invention, comprise the diagnostic equipment housing, 3 detection voltage tables and high pressure output regulating device is set in the described diagnostic equipment housing, set gradually the detection outlet on the described detection voltage table, on the described high pressure output regulating device high-voltage connection is set, described high pressure output regulating device is made up of testing transformer and regulator thereof, during use, high-voltage connection is connected on the primary side of electromagnetic potential transformer, the electromagnetic potential transformer fault is examined instrument and is detected the secondary side that outlet is connected on electromagnetic potential transformer, regulate high pressure output regulating device, make that output voltage is working voltage value 10000v or 35000v or 6000v, observe the electromagnetic potential transformer fault and examine instrument detection voltage table, judge according to table meter indicated value whether the 1a1n three-phase there are differences, and the record difference.Utilize above-mentioned step, measure the difference of 2a2n, 3a3n, dadn respectively.According to magnitude of voltage and the three alternate differences thereof of the identical winding of secondary, judge whether this electromagnetic potential transformer can put into operation.The present invention can be effectively and rapidly to the diagnosing malfunction of the electromagnetic potential transformer of 6 ~ 35KV electric pressure, judge whether it can put into operation, and simple in structure, materials economize, economical and practical, realize easily, have good value for applications.
Claims (3)
1. 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument, it is characterized in that: comprise the diagnostic equipment housing, 3 detection voltage tables and high pressure output regulating device is set in the described diagnostic equipment housing, set gradually the detection outlet on the described detection voltage table, on the described high pressure output regulating device high-voltage connection is set.
2. as claims 1 described 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument, it is characterized in that: described high pressure output regulating device is made up of testing transformer and regulator thereof.
3. using method at claims 1 described 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument:
(1), the high-voltage connection of 6 ~ 35KV electromagnetic potential transformer quick diagnosis instrument is connected on the primary side of electromagnetic potential transformer three-phase, the electromagnetic potential transformer fault is examined instrument and is detected the secondary side that outlet is connected on the electromagnetic potential transformer three-phase;
(2), regulate high pressure output regulating device, make that output voltage is the working voltage value of national manufacturer's standard rules regulation, observe the electromagnetic potential transformer fault and examine instrument detection voltage table, judge according to table meter indicated value whether the three-phase of first winding 1a1n of electromagnetic potential transformer Secondary Winding there are differences, and the record difference;
(3), utilize above-mentioned steps, measure the difference of the open delta winding dadn of the difference of each winding 2a2n, 3a3n of electromagnetic potential transformer Secondary Winding and electromagnetic potential transformer Secondary Winding respectively;
(4), according to magnitude of voltage and the three alternate differences thereof of the identical winding of secondary, utilize the requirement of " three than method " and rules, if the three-phase voltage value is near 57.7V, 33.3V, illustrate that then electromagnetic potential transformer can come into operation, to deduct the minimum value difference bigger if the three-phase voltage value obviously departs from 57.7V, 33.3V or three-phase maximal value, illustrates that then there is fault in electromagnetic potential transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310179499 CN103257334A (en) | 2013-05-15 | 2013-05-15 | 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310179499 CN103257334A (en) | 2013-05-15 | 2013-05-15 | 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103257334A true CN103257334A (en) | 2013-08-21 |
Family
ID=48961358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310179499 Pending CN103257334A (en) | 2013-05-15 | 2013-05-15 | 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103257334A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771514A (en) * | 2016-11-25 | 2017-05-31 | 国网河南省电力公司平顶山供电公司 | A kind of device and method of quick lookup voltage transformer failure |
| CN108152659A (en) * | 2017-12-26 | 2018-06-12 | 国网河南省电力公司平顶山供电公司 | A kind of method for judging electromagnetic potential transformer turn-to-turn insulation short circuit |
| CN109932676A (en) * | 2019-03-27 | 2019-06-25 | 国家电网有限公司 | The method for detecting abnormality of voltage transformer circuit |
| CN112003183A (en) * | 2020-08-06 | 2020-11-27 | 河南省同信电力工程有限公司 | Power transmission network fault processing system and method |
-
2013
- 2013-05-15 CN CN 201310179499 patent/CN103257334A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771514A (en) * | 2016-11-25 | 2017-05-31 | 国网河南省电力公司平顶山供电公司 | A kind of device and method of quick lookup voltage transformer failure |
| CN106771514B (en) * | 2016-11-25 | 2019-03-19 | 国网河南省电力公司平顶山供电公司 | A kind of device and method of quick lookup voltage transformer failure |
| CN108152659A (en) * | 2017-12-26 | 2018-06-12 | 国网河南省电力公司平顶山供电公司 | A kind of method for judging electromagnetic potential transformer turn-to-turn insulation short circuit |
| CN108152659B (en) * | 2017-12-26 | 2020-02-04 | 国网河南省电力公司平顶山供电公司 | Method for judging turn-to-turn insulation short circuit of electromagnetic voltage transformer |
| CN109932676A (en) * | 2019-03-27 | 2019-06-25 | 国家电网有限公司 | The method for detecting abnormality of voltage transformer circuit |
| CN112003183A (en) * | 2020-08-06 | 2020-11-27 | 河南省同信电力工程有限公司 | Power transmission network fault processing system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bagheri et al. | Frequency response analysis and short-circuit impedance measurement in detection of winding deformation within power transformers | |
| Behjat et al. | Diagnosing shorted turns on the windings of power transformers based upon online FRA using capacitive and inductive couplings | |
| Bagheri et al. | FRA vs. short circuit impedance measurement in detection of mechanical defects within large power transformer | |
| CN103267933B (en) | The method of shelf depreciation in measuring transformer induced voltage test device | |
| Bhide et al. | Analysis of winding inter-turn fault in transformer: A review and transformer models | |
| CN104569724A (en) | Transformer short-circuit fault comprehensive diagnosis method | |
| CN102087347A (en) | Charged test method for current transformer and application thereof | |
| Venikar et al. | A novel offline to online approach to detect transformer interturn fault | |
| CN107632241A (en) | A kind of apparatus and method for testing paper oil insulation partial discharge characteristic | |
| CN103884933B (en) | A kind of high-power transformer temperature-raising experimental method | |
| CN108414876A (en) | A kind of transformer insulated pilot system | |
| CN108089038A (en) | The experimental rig and method that analysis winding defect pyrogenicity influences paper oil insulation performance | |
| CN103257334A (en) | 6-35KV electro-magnetic voltage transformer quick diagnosing instrument and using method | |
| CN102540128A (en) | Method for automatically calibrating error of combined three-phase current transformer | |
| CN108037430A (en) | A kind of 10kV distribution transformers three-phase partial discharge test system | |
| Al-Ameri et al. | Frequency response analysis for transformer tap changer damage detection | |
| Rahimpour et al. | The application of sweep frequency response analysis for the online monitoring of power transformers | |
| Bagheri et al. | Case study on FRA capability in detection of mechanical defects within a 400MVA transformer | |
| CN202563014U (en) | Transformer loss measurement control console | |
| CN103605101B (en) | Power-frequency subsection voltage stepping-up tester | |
| CN102226773B (en) | Test bench for X-ray detection apparatuses | |
| Mehta et al. | Study and diagnosis of the power transformer bushing insulation system | |
| Pollak | The use of DC current to testing condition of the insulation of electrical machines | |
| CN108445385A (en) | A kind of load ratio bridging switch tap selector state evaluating method based on partial discharge monitoring and oil chromatogram analysis | |
| CN101572181B (en) | Transformer core earth resistance live line measurement installing device and method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130821 |