CN105675044B - A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature - Google Patents
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature Download PDFInfo
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- CN105675044B CN105675044B CN201610018995.3A CN201610018995A CN105675044B CN 105675044 B CN105675044 B CN 105675044B CN 201610018995 A CN201610018995 A CN 201610018995A CN 105675044 B CN105675044 B CN 105675044B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
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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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature, it is characterised in that the System For Fault Diagnosis of Instrument Transformers method based on temperature is：Three bus temperatures of transformer temperature, the connector temperature of transformer secondary side outlet two, different transformer inlet wires are monitored, the different characteristic that analysis obtains temperature data is carried out to temperature data, three bus temperature data are as the reduced temperature feature for judging operating load, the temperature influence factor that current power system operation load is run to transformer is excluded, the different characteristic obtained from said temperature data analysis judges the failure of transformer.The present invention can have accurate diagnosis effect to transformer insulation fault, transformer joint looseness failure, transformer internal fault, realize the diagnosis early to mulual inductor malfunction and find failure, ensure the normal operation of transformer.
Description
Technical field
The invention belongs to power system failure diagnostic field, is related to a kind of method for diagnosing faults of power equipment, particularly
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature.
Background technology
Transformer is one of indispensable capital equipment such as power network normal operation, monitoring, metering, protection, control.It
Presence, high voltage, high current information is applied.Transformer running status is good and bad, directly influence power system measuring,
The accuracy of metering and relay protection, the reliability of automatics, safe operation of power system is influenceed very big.
At present, in power system, the use of transformer is extensive, and not fine for the method for diagnosing faults of transformer
Research and solution.Transformer is in itself there is performance issue and failure problems, once transformer generation running status is abnormal
The safe operation of power system will be had a strong impact on failure.Therefore, it is necessary to a kind of System For Fault Diagnosis of Instrument Transformers method based on temperature
Quickly and accurately the failure of transformer can be diagnosed, failure existing for discovery transformer, ensures transformer just early
Often operation.
The content of the invention
The present invention can not solve the problems, such as that above-mentioned transformer is present for prior art, there is provided a kind of based on the mutual of temperature
Sensor method for diagnosing faults.System For Fault Diagnosis of Instrument Transformers method based on temperature to transformer temperature, transformer secondary side by going out
Wire terminal temperature, transformer inlet wire bus temperature are monitored, and temperature data is obtained not by the analysis of temperature monitoring data
Same feature, the failure of transformer is judged, so as to realize the diagnosis to mulual inductor malfunction.
In order to complete above-mentioned purpose, the present invention uses following technical scheme.
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature, it is characterised in that the mulual inductor malfunction based on temperature
Diagnostic method is：To transformer temperature, the connector temperature of transformer secondary side outlet two, different transformer inlet wires three bus temperature
Degree is monitored, and the different characteristic that analysis obtains temperature data is carried out to temperature data, three bus temperature data are as judgement
The reduced temperature feature of operating load, the temperature influence factor that current power system operation load is run to transformer is excluded, from
The different characteristic that said temperature data analysis obtains judges the failure of transformer.
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature, it is characterised in that the mulual inductor malfunction based on temperature
Diagnostic method step is as follows.
S01：Measurement collection transformer temperature T0, transformer secondary side outlet two connector temperature T1 and T2, different transformers
Three bus temperatures T3, T4 and T5 of inlet wire.
S02：The different characteristic that analysis obtains temperature data is carried out to temperature T0, T1, T2, T3, T4 and T5.
S03：When temperature T3, T4 and T5 are in the range of normal operating temperature, temperature T0, T1, T2 are analyzed.Temperature T0
Normally, when temperature T1 or T2 is higher abnormal, it is judged as transformer secondary side outlet joint looseness fault.When T0, T1, T2 temperature all
When higher abnormal, it is judged as transformer insulation fault or transformer internal fault.When temperature T3, T4 and T5 running temperature are abnormal,
It is judged as other failures of power system, carries out trouble hunting.
The beneficial effects of the invention are as follows：A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature of the present invention, can be to mutual inductance
Device insulation fault, transformer joint looseness failure, transformer internal fault have accurate diagnosis effect, realize to mulual inductor malfunction
Diagnosis early and find failure, ensure the normal operation of transformer.
Brief description of the drawings
Fig. 1 is the System For Fault Diagnosis of Instrument Transformers method flow diagram of the invention based on temperature.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, to be specifically described the technical side of the present invention
Case.
A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature, it is characterised in that the mulual inductor malfunction based on temperature
Diagnostic method is：To transformer temperature, the connector temperature of transformer secondary side outlet two, different transformer inlet wires three bus temperature
Degree is monitored, and the different characteristic that analysis obtains temperature data is carried out to temperature data, three bus temperature data are as judgement
The reduced temperature feature of operating load, the temperature influence factor that current power system operation load is run to transformer is excluded, from
The different characteristic that said temperature data analysis obtains judges the failure of transformer.
Embodiment process is as follows：As shown in figure 1, measurement collection transformer temperature T0, the joint of transformer secondary side outlet two
Temperature T1 and T2, different transformer inlet wires three bus temperatures T3, T4 and T5.Temperature T0, T1, T2, T3, T4 and T5 are carried out
Analysis obtains the different characteristic of temperature data.Measurement T0, T1, T2, T3, T4 and T5 are respectively：37.5℃、47.7℃、38.1℃、
37.2 DEG C, 37.3 DEG C, 37.7 DEG C, analysis temperature data acquisition is characterized as T3, T4 and T5 in the range of normal operating temperature, temperature
T0 is normal, and the higher exceptions of temperature T1, T2 is normal, is judged as joint looseness failure at transformer temperature T1.
Measurement T0, T1, T2, T3, T4 and T5 are respectively：45.5℃、50.7℃、51.1℃、37.5℃、37.1℃、37.3
DEG C, analysis temperature data acquisition is characterized as T3, T4 and T5 in the range of normal operating temperature, and T0, T1, T2 temperature are all compared with Gao Yi
Often, it is judged as transformer insulation fault or transformer internal fault.
Measurement T0, T1, T2, T3, T4 and T5 are respectively：48.5℃、47.7℃、49.1℃、57.6℃、58.1℃、58.6
DEG C, analysis temperature data acquisition is characterized as temperature T3, T4 and T5 running temperature exception, is judged as other failures of power system, enters
Row trouble hunting.
The System For Fault Diagnosis of Instrument Transformers method of the invention based on temperature, is completed to transformer insulation fault, mutual inductance more than
Device joint looseness failure, the Accurate Diagnosis of transformer internal fault, realize the diagnosis early to mulual inductor malfunction and find failure,
Ensure the normal operation of transformer.
Claims (1)
- A kind of 1. System For Fault Diagnosis of Instrument Transformers method based on temperature, it is characterised in that the mulual inductor malfunction based on temperature is examined Disconnected method is：To transformer temperature, the connector temperature of transformer secondary side outlet two, different transformer inlet wires three bus temperatures It is monitored, the different characteristic that analysis obtains temperature data is carried out to temperature data, three bus temperature data is transported as judgement The reduced temperature feature of row load, the temperature influence factor that current power system operation load is run to transformer is excluded, from temperature The different characteristic that degrees of data analysis obtains judges the failure of transformer；Specific method step is as follows：S01：Measurement collection transformer temperature T0, transformer secondary side outlet two connector temperature T1 and T2, different transformer inlet wires Three bus temperatures T3, T4 and T5；S02：The different characteristic that analysis obtains temperature data is carried out to temperature T0, T1, T2, T3, T4 and T5；S03：When temperature T3, T4 and T5 are in the range of normal operating temperature, temperature T0, T1, T2 are analyzed；Temperature T0 is just Often, when temperature T1 or T2 is higher abnormal, it is judged as transformer secondary side outlet joint looseness fault；When T0, T1, T2 temperature all compared with When high abnormal, it is judged as transformer insulation fault or transformer internal fault；When temperature T3, T4 and T5 running temperature exception, sentence Break as other failures of power system, progress trouble hunting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018995.3A CN105675044B (en) | 2016-01-13 | 2016-01-13 | A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610018995.3A CN105675044B (en) | 2016-01-13 | 2016-01-13 | A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature |
Publications (2)
| Publication Number | Publication Date |
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| CN105675044A CN105675044A (en) | 2016-06-15 |
| CN105675044B true CN105675044B (en) | 2017-11-24 |
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| CN201610018995.3A Expired - Fee Related CN105675044B (en) | 2016-01-13 | 2016-01-13 | A kind of System For Fault Diagnosis of Instrument Transformers method based on temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110196082A (en) * | 2019-07-11 | 2019-09-03 | 谢明仿 | A kind of environment monitoring device and method of electronic mutual inductor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009168533A (en) * | 2008-01-11 | 2009-07-30 | Mitsubishi Heavy Ind Ltd | Diagnostic device of signal state in measurement or control means |
| KR20130060894A (en) * | 2011-11-30 | 2013-06-10 | 한국전력공사 | Remote diagnosis system for transformer |
| CN103163389A (en) * | 2011-12-08 | 2013-06-19 | 沈阳工业大学 | Intelligent bus on-line monitoring and condition evaluation system |
| CN203365669U (en) * | 2013-07-09 | 2013-12-25 | 西安华伟光电技术有限公司 | Running state on-line monitoring device for electronic mutual inductor |
| CN104020370B (en) * | 2014-05-22 | 2016-08-17 | 中国南方电网有限责任公司电网技术研究中心 | Transformer internal fault diagnosis method based on virtual parameter change monitoring |
| CN204241588U (en) * | 2014-11-11 | 2015-04-01 | 国家电网公司 | Current transformer operating state monitoring system |
| CN204228942U (en) * | 2014-11-21 | 2015-03-25 | 无锡韩光电器股份有限公司 | The line fault observation circuit of current transformer |
| CN204241594U (en) * | 2014-12-02 | 2015-04-01 | 国家电网公司 | A kind of real-time monitoring system for substation transformer operating condition |
| CN204855772U (en) * | 2015-07-21 | 2015-12-09 | 珠海许继电气有限公司 | Voltage transformer temperature on -line monitoring device |
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