CN201754387U - On-line insulation monitoring device for oil-poor circuit breaker - Google Patents
On-line insulation monitoring device for oil-poor circuit breaker Download PDFInfo
- Publication number
- CN201754387U CN201754387U CN2010202843409U CN201020284340U CN201754387U CN 201754387 U CN201754387 U CN 201754387U CN 2010202843409 U CN2010202843409 U CN 2010202843409U CN 201020284340 U CN201020284340 U CN 201020284340U CN 201754387 U CN201754387 U CN 201754387U
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- circuit breaker
- oil
- poor circuit
- poor
- ring
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Abstract
The utility model discloses an on-line insulation monitoring device for an oil-poor circuit breaker, which is arranged on a main body of the oil-poor circuit breaker; the oil-poor circuit breaker comprises a vacuum arc extinguish chamber and an oil-poor circuit breaker lifting rod; a ring-shaped hoop is arranged at the lower part of the oil-poor circuit breaker lifting rod, and a grounded microampere meter is connected with the ring-shaped hoop through a lead wire. The ring-shaped hoop is additionally arranged at the lower part of the oil-poor circuit breaker lifting rod, a wound lead wire connected on the ring-shaped hoop is led out by an insulating sleeve additionally arranged at the lower part of the circuit breaker, and finally the JCQ-3 microampere meter is connected on the sleeve in series; therefore, the microampere meter can timely detect leakage current of the circuit breaker and accurately reflect the running situation of the circuit breaker, thereby not only greatly reducing pre-running times of power failure and overhauling times of equipment, but also achieving excellent economic benefits.
Description
Technical field
The utility model belongs to electric power safety operational outfit technical field, particularly a kind of oil-minimum breaker on-line insulation monitoring device.
Background technology
At present, national grid is advocated on-line monitoring and repair based on condition of component, the particularly nineties above transformer station of 110KV that put into operation in the past energetically, also has a lot of SW6-110 type oil-minimum breaker hanging net operations, for this kind equipment is implemented in the line insulation monitoring, we have carried out the improvement transformation with equipment.SW6-110 type oil-minimum breaker is in operation, and because of each position sealing gasket is aging, each position bolt corrosion is loosening etc., and reason causes rainwater, moisture to enter circuit breaker inside, and circuit breaker main insulation is reduced.In case oil-minimum breaker enters moisture and rainwater in running inside, form the globule, most of meeting is attached on go out fox chamber interior and the lifting arm, cause main insulation to reduce, leakage current increases, and gently then the 110KV system earth can take place, and is heavy then circuit breaker explosion can take place in order in time to pinpoint the problems, to organize every year the maintainer that circuit breaker is stopped transport and make preventive trial, will carry out large repairs to equipment in 3 years.Cause unfavorable factors such as interruption duration is long, the power failure area is big, increase equipment maintenance cost like this.
The utility model content
The utility model provides a kind of oil-minimum breaker on-line insulation monitoring device that can accurately reflect circuit breaker ruuning situation.
A kind of oil-minimum breaker on-line insulation monitoring device, be arranged on the oil-minimum breaker body, described oil-minimum breaker comprises vacuum interrupter and circuit breaker lifting arm, and the bottom of described circuit breaker lifting arm is provided with an annular anchor ear, and described anchor ear connects the microammeter of a ground connection by lead.
The described lead that is connected with anchor ear is provided with an insulating sleeve outward.
The utility model connects one section around the shape lead by installing an annular anchor ear additional in circuit breaker lifting arm bottom on anchor ear, lead is drawn by install an insulating sleeve additional in the circuit breaker bottom again, finally JCQ-3 type microammeter of serial connection on sleeve pipe.Just can measure the circuit breaker leakage current constantly and can accurately reflect circuit breaker ruuning situation with microammeter like this.The lead that is connected with anchor ear is provided with an insulating sleeve outward, the useful life that can improve lead, the phenomenon that the electric current of avoiding occurring producing on the lead is derived from breaker body.Because can in time detect the ruuning situation of circuit breaker, avoid occurring unfavorable phenomenons such as interruption duration is long, the power failure area is big, equipment maintenance cost increase, significantly reduced equipment power failure prerun number of times and overhaul number of times, and had good economic benefit.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of oil-minimum breaker on-line insulation monitoring device, be arranged on the oil-minimum breaker body, described oil-minimum breaker comprises vacuum interrupter 1 and circuit breaker lifting arm 2, the bottom of described circuit breaker lifting arm 2 is provided with an annular anchor ear 3, and described anchor ear 3 connects the microammeter 5 of a ground connection by lead.
The described lead that is connected with anchor ear 3 is provided with an insulating sleeve 4 outward.
The utility model connects one section around the shape lead by installing an annular anchor ear additional in circuit breaker lifting arm bottom on anchor ear, lead is drawn by install an insulating sleeve additional in the circuit breaker bottom again, finally JCQ-3 type microammeter of serial connection on sleeve pipe.Just can measure the circuit breaker leakage current constantly and can accurately reflect circuit breaker ruuning situation with microammeter like this.The lead that is connected with anchor ear is provided with an insulating sleeve outward, the useful life that can improve lead, the phenomenon that the electric current of avoiding occurring producing on the lead is derived from breaker body.Because can in time detect the ruuning situation of circuit breaker, avoid occurring unfavorable phenomenons such as interruption duration is long, the power failure area is big, equipment maintenance cost increase, significantly reduced equipment power failure prerun number of times and overhaul number of times, and had good economic benefit.
Claims (2)
1. oil-minimum breaker on-line insulation monitoring device, be arranged on the oil-minimum breaker body, described oil-minimum breaker comprises vacuum interrupter and circuit breaker lifting arm, it is characterized in that: the bottom of described circuit breaker lifting arm is provided with an annular anchor ear, and described anchor ear connects the microammeter of a ground connection by lead.
2. oil-minimum breaker on-line insulation monitoring device as claimed in claim 1 is characterized in that: the described lead that is connected with anchor ear is provided with an insulating sleeve outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202843409U CN201754387U (en) | 2009-11-25 | 2010-08-09 | On-line insulation monitoring device for oil-poor circuit breaker |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920258424.2 | 2009-11-25 | ||
| CN200920258424 | 2009-11-25 | ||
| CN2010202843409U CN201754387U (en) | 2009-11-25 | 2010-08-09 | On-line insulation monitoring device for oil-poor circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201754387U true CN201754387U (en) | 2011-03-02 |
Family
ID=43622119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202843409U Expired - Fee Related CN201754387U (en) | 2009-11-25 | 2010-08-09 | On-line insulation monitoring device for oil-poor circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201754387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9401251B2 (en) | 2012-05-16 | 2016-07-26 | General Electric Company | Molded case circuit breaker |
-
2010
- 2010-08-09 CN CN2010202843409U patent/CN201754387U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9401251B2 (en) | 2012-05-16 | 2016-07-26 | General Electric Company | Molded case circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110302 Termination date: 20110809 |