CN105842620A - 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method - Google Patents
220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method Download PDFInfo
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- CN105842620A CN105842620A CN201610391882.8A CN201610391882A CN105842620A CN 105842620 A CN105842620 A CN 105842620A CN 201610391882 A CN201610391882 A CN 201610391882A CN 105842620 A CN105842620 A CN 105842620A
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- current
- circuit breaker
- chopper
- voltage alternating
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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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
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- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method. The method includes the following steps that: a circuit breaker is connected into a current value-set circuit of which the voltage is 252KV and of which the frequency is 50Hz, the electrical parameters of the circuit breaker are inspected; the circuit breaker is arranged in an environment where the temperature of surrounding air does not exceed 40 DEG C, and the temperature rise of the circuit breaker is inspected; in a set time, the value of current passing through the circuit breaker under a switched-on state is made to be 50KA, so that the withstand current of the circuit breaker in the set time can be inspected, wherein the set time is 3s; rated peak withstand current inspection is carried out, namely, the current peak of the first large half wave of the rated short-time withstand current which can be withstood by the circuit breaker under a switched-on state is inspected, and the current peak of the first large half wave is not greater than 125KA; and current passing through the circuit breaker is 50KA, so that the short-circuiting condition of the circuit breaker can be detected. The 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method is advantageous in that the method can decrease the failure rate of equipment.
Description
Technical field
The present invention relates to field of electrical equipment, in particular it relates to a kind of 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection.
Background technology
At present, the scheduled overhaul system that in power system, power equipment uses mostly also exists major defect, and as frequent in provisional maintenance, maintenance deficiency or maintenance surplus, blindly maintenance etc., this makes countries in the world costly in terms of maintenance of equipment every year.And for a long time, China's power system performs periodic inspection system to power equipment, to equipment Inspection and maintenance, thus there is the drawback that maintenance is excessively not enough with maintenance in the most planned time cycle.Because of fault at power train unification, often cause large-area power failure.And there is the problem that fault rate is higher in existing power equipment.
Summary of the invention
It is an object of the invention to, for the problems referred to above, propose a kind of 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection, to realize the advantage reducing equipment failure rate.
For achieving the above object, the technical solution used in the present invention is:
A kind of 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection, including,
Step 1, chopper is connected to voltage be 252KV, frequency be 50Hz and set current value circuit in, the electric parameter of chopper is tested；
Step 2, chopper putting into surrounding air less than in the environment of 40 DEG C, the temperature rise to chopper is tested；
Step 3, set time in, making by the current value of chopper under "on" position is 50KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 3s；
Step 5, Rated peak withstand current are checked, i.e. the current peak of first major loop of the specified KA Rms of enough carryings under inspection breaker closing state, and the current peak of first major loop is not more than 125KA；
Step 6, make by the electric current of chopper to be 50kA, thus the short-circuit conditions of chopper is detected.
Preferably, described step 1 sets current value as 2500A, 3150A, 4000A or 5000A.
Technical scheme, by testing 220kV porcelain knob high-voltage alternating SF6 chopper, reduces the purpose of equipment failure rate.
Detailed description of the invention
A kind of 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection, including,
Step 1, chopper is connected to voltage be 252KV, frequency be 50Hz and set current value circuit in, the electric parameter of chopper is tested；
Step 2, chopper putting into surrounding air less than in the environment of 40 DEG C, the temperature rise to chopper is tested；
Step 3, set time in, making by the current value of chopper under "on" position is 50KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 3s；
Step 5, Rated peak withstand current are checked, i.e. the current peak of first major loop of the specified KA Rms of enough carryings under inspection breaker closing state, and the current peak of first major loop is not more than 125KA；
Step 6, make by the electric current of chopper to be 50kA, thus the short-circuit conditions of chopper is detected.
Preferably, step 1 sets current value as 2500A, 3150A, 4000A or 5000A.
Also including detecting between the conjunction timesharing to chopper, be not more than 60ms between the conjunction timesharing of chopper, preferred scheme is not more than 50ms for closing between timesharing.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (2)
1. a 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection, it is characterised in that include,
Step 1, chopper is connected to voltage be 252KV, frequency be 50Hz and set current value circuit in, the electric parameter of chopper is tested；
Step 2, chopper putting into surrounding air less than in the environment of 40 DEG C, the temperature rise to chopper is tested；
Step 3, set time in, making by the current value of chopper under "on" position is 50KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 3s；
Step 5, Rated peak withstand current are checked, i.e. the current peak of first major loop of the specified KA Rms of enough carryings under inspection breaker closing state, and the current peak of first major loop is not more than 125KA；
Step 6, make by the electric current of chopper to be 50kA, thus the short-circuit conditions of chopper is detected.
The 220kV porcelain knob high-voltage alternating SF6 chopper method of inspection the most according to claim 1, it is characterised in that set current value in described step 1 as 2500A, 3150A, 4000A or 5000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391882.8A CN105842620A (en) | 2016-06-06 | 2016-06-06 | 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391882.8A CN105842620A (en) | 2016-06-06 | 2016-06-06 | 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method |
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| Publication Number | Publication Date |
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| CN105842620A true CN105842620A (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610391882.8A Pending CN105842620A (en) | 2016-06-06 | 2016-06-06 | 220kV porcelain column type high-voltage alternating-current SF6 circuit breaker inspection method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020093652A1 (en) * | 2000-11-29 | 2002-07-18 | Gary Powell | Method and device utilizing real-time gas sampling |
| JP3863119B2 (en) * | 2003-03-11 | 2006-12-27 | 株式会社東芝 | Substation monitoring and control system |
| CN103344909A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method for detecting service life of breaker |
-
2016
- 2016-06-06 CN CN201610391882.8A patent/CN105842620A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020093652A1 (en) * | 2000-11-29 | 2002-07-18 | Gary Powell | Method and device utilizing real-time gas sampling |
| JP3863119B2 (en) * | 2003-03-11 | 2006-12-27 | 株式会社東芝 | Substation monitoring and control system |
| CN103344909A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method for detecting service life of breaker |
Non-Patent Citations (7)
| Title |
|---|
| 中国南方电网有限责任公司: "《110kV瓷柱式高压交流SF6断路器技术协议》", 30 January 2016 * |
| 中国南方电网有限责任公司: "《500kV瓷柱式高压交流六氟化硫断路器技术规范》", 9 February 2012 * |
| 广东电网公司: "《广东电网公司断路器技术规范》", 26 November 2012 * |
| 徐波: "《变电设备运行维护及异常处理》", 30 September 2013, 中国电力出版社 * |
| 西安高压电器研究所: "《高压交流断路器》", 5 June 2003 * |
| 西安高压电器研究所: "《高压开关设备和控制设备标准的共用技术要求》", 10 October 1999 * |
| 陈家斌: "《SF6断路器实用技术》", 30 April 2004, 中国水利水电出版社 * |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20160810 |