CN105866672A - Inspection method of 35 kV porcelain-pole high-voltage alternating-current SF6 breaker - Google Patents
Inspection method of 35 kV porcelain-pole high-voltage alternating-current SF6 breaker Download PDFInfo
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- CN105866672A CN105866672A CN201610391922.9A CN201610391922A CN105866672A CN 105866672 A CN105866672 A CN 105866672A CN 201610391922 A CN201610391922 A CN 201610391922A CN 105866672 A CN105866672 A CN 105866672A
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- Prior art keywords
- chopper
- current
- breaker
- inspected
- voltage alternating
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Classifications
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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
Abstract
The invention discloses an inspection method of a 35 kV porcelain-pole high-voltage alternating-current SF6 breaker. The method comprises the steps that the breaker is connected to a circuit of which the voltage is 40.5 KV, the frequency is 50 Hz, and a current value is set, and electrical parameters of the breaker are inspected; the breaker is put in an environment of which surrounding air does not exceed 40 DEG C, and temperature rise of the breaker is inspected; the value of a current passing through the breaker in a switching-on state is 40 KA within the set time, and therefore the withstanding current of the breaker within the set time is inspected, wherein the set time is 4 s; a rated peak withstanding current is inspected, that is to say, a current peak value of a first large semiwave of a rated short-time withstanding current capable of being borne by the breaker in the switching-on state is inspected, and the current peak value of the first large semiwave is not larger than 100 KA; the current passing through the breaker is 40 kA, and therefore the short-circuit situation of the breaker is inspected. The advantage of decreasing the equipment failure rate is achieved.
Description
Technical field
The present invention relates to field of electrical equipment, in particular it relates to a kind of 35kV 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 35kV 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 35kV porcelain knob high-voltage alternating SF6 chopper method of inspection, including,
Step 1, chopper is connected to voltage be 40.5KV, 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 40KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 4s；
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 100KA；
Step 6, make by the electric current of chopper to be 40kA, thus the short-circuit conditions of chopper is detected.
Preferably, described step 1 sets current value as 1250A, 1600A, 2000A, 2500A, 3150A or 4000A.
Technical scheme has the advantages that
Technical scheme, by testing 35kV porcelain knob high-voltage alternating SF6 chopper, reduces the purpose of equipment failure rate.
Detailed description of the invention
A kind of 35kV porcelain knob high-voltage alternating SF6 chopper method of inspection, including,
Step 1, chopper is connected to voltage be 40.5KV, 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 40KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 4s；
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 100KA；
Step 6, make by the electric current of chopper to be 40kA, thus the short-circuit conditions of chopper is detected.
Preferably, step 1 sets current value as 1250A, 1600A, 2000A, 2500A, 3150A or 4000A.
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 35kV porcelain knob high-voltage alternating SF6 chopper method of inspection, it is characterised in that include,
Step 1, chopper is connected to voltage be 40.5KV, 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 40KA, thus checks the tolerance electric current within the setting time of chopper, and the time that sets is as 4s；
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 100KA；
Step 6, make by the electric current of chopper to be 40kA, thus the short-circuit conditions of chopper is detected.
The 35kV 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 1250A, 1600A, 2000A, 2500A, 3150A or 4000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391922.9A CN105866672A (en) | 2016-06-06 | 2016-06-06 | Inspection method of 35 kV porcelain-pole high-voltage alternating-current SF6 breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610391922.9A CN105866672A (en) | 2016-06-06 | 2016-06-06 | Inspection method of 35 kV porcelain-pole high-voltage alternating-current SF6 breaker |
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| Publication Number | Publication Date |
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| CN105866672A true CN105866672A (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610391922.9A Pending CN105866672A (en) | 2016-06-06 | 2016-06-06 | Inspection method of 35 kV porcelain-pole high-voltage alternating-current SF6 breaker |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004274931A (en) * | 2003-03-11 | 2004-09-30 | Tm T & D Kk | Substation monitoring control system |
| CN1667429A (en) * | 2005-04-08 | 2005-09-14 | 苏盛 | Primary cut-out state monitoring method |
| CN201859805U (en) * | 2010-11-16 | 2011-06-08 | 中国西电电气股份有限公司 | Outdoor high-voltage alternating-current porcelain knob type SF6 circuit breaker |
| CN205246827U (en) * | 2015-12-17 | 2016-05-18 | 中国西电电气股份有限公司 | Adopt low -voltage circuit breaker operating characteristic test circuit of many magnetic circuits transformer |
-
2016
- 2016-06-06 CN CN201610391922.9A patent/CN105866672A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004274931A (en) * | 2003-03-11 | 2004-09-30 | Tm T & D Kk | Substation monitoring control system |
| CN1667429A (en) * | 2005-04-08 | 2005-09-14 | 苏盛 | Primary cut-out state monitoring method |
| CN201859805U (en) * | 2010-11-16 | 2011-06-08 | 中国西电电气股份有限公司 | Outdoor high-voltage alternating-current porcelain knob type SF6 circuit breaker |
| CN205246827U (en) * | 2015-12-17 | 2016-05-18 | 中国西电电气股份有限公司 | Adopt low -voltage circuit breaker operating characteristic test circuit of many magnetic circuits transformer |
Non-Patent Citations (2)
| Title |
|---|
| 广东电网公司: "《广东电网公司断路器技术规范》", 26 November 2012 * |
| 西安高压电器研究所: "《高压交流断路器》", 5 June 2003, 中华人民共和国国家质量监督检验检疫总局 * |
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Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |