CN203367188U - Opening/closing loop of permanent magnetic mechanism breaker - Google Patents
Opening/closing loop of permanent magnetic mechanism breaker Download PDFInfo
- Publication number
- CN203367188U CN203367188U CN 201320382931 CN201320382931U CN203367188U CN 203367188 U CN203367188 U CN 203367188U CN 201320382931 CN201320382931 CN 201320382931 CN 201320382931 U CN201320382931 U CN 201320382931U CN 203367188 U CN203367188 U CN 203367188U
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- circuit
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- electric capacity
- permanent magnet
- breaker
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Abstract
The utility model relates to an opening/closing loop of a permanent magnetic mechanism breaker. A proper capacitor is additionally arranged in the opening/closing loop of a permanent magnetic mechanism, the capacitor is charged through a direct current power source, a power supply requirement for the direct current power source during instant opening/opening is reduced or completely not needed through discharging of the capacitor with stored energy for the loop during instant opening/closing.
Description
Technical field
The utility model relates to a kind of permanent magnet mechanism circuit-breaker, especially a kind of permanent magnet mechanism circuit-breaker minute, closing circuit.
Background technology
Permanent magnet mechanism circuit-breaker has intellectuality, exempts from debugging, few safeguards, the characteristics such as highly reliable, simple in structure, long service life.Be particularly suitable for reliable to the electric equipment requirement or need the place of frequent operation.
Because the operating coil combined floodgate immediate current of most of permanent magnet mechanism is very large in the 100A left and right, DC power supply need to select larger direct current sky to open, direct current cables also needs the pressure drop of larger sectional area guarantee DC power supply to meet the operation requirements of permanent magnet mechanism, DC power source capacity, voltage also need to guarantee, DC power supply are had relatively high expectations.
The operating coil combined floodgate immediate current of the permanent magnet mechanism circuit-breaker that present stage is used is very large, if any reached at 100A left and right, and common spring mechanism breaker closing electric current 2A left and right.Electric current has the gap of 50 times, also causes that the cross-section of cable, empty choice-start select the gap of 50 times of left and right thereupon; Surge voltage of power supply etc. is all had higher requirements simultaneously.For reducing the impact of cable pressure drop on circuit-breaker switching on-off, General Requirements direct current cables distance can not be too far away simultaneously, caused the limitation of the permanent magnet mechanism use that the divide-shut brake electric current is large.
For address this problem adopt permanent magnet mechanism minute, closing circuit adds the scheme of suitable electric capacity.This scheme has effectively solved the excessive problem of switching current of permanent magnet mechanism.
Summary of the invention
For the switching current that solves permanent magnet mechanism excessive to direct current system impact large, the cross section of DC power supply capacity and cable is required to high problem, by transformation, permanent magnet mechanism minute, closing circuit adds suitable electric capacity, by DC power supply to capacitor charging, discharged in loop by electric capacity stored energy in divide-shut brake moment, reduce or abandon the requirement of DC power supply to divide-shut brake moment power supply fully.Adopt this electric capacity to reduce the direct current cables sectional area, reduced project cost, simultaneously also solved the problem that direct current system is subject to larger impact.
Select different electric capacity for the size of divide-shut brake electric current.
Electric capacity is accumulated the steady energy storage of even cunning by circuit breaker non-operate time, at divide-shut brake, sparks, and the higher divide-shut brake electric current met the demands is provided.
The accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model permanent magnet mechanism circuit-breaker
Wherein: 1 is control box; 2 is closing coil; 3 is switching winding; 4 is the accumulation power supply loop; 5 is the closing coil auxiliary contact; 6 is combined floodgate electric capacity; 7 is separating brake electric capacity; 8 is controller; 9 is the switching winding auxiliary contact; 10 is operating coil; 11 is charging current limiter resistance; Operating power (12); Closing circuit (13); Sub-gate circuit (14); Accumulation power supply (15); Electric motor loop and capacitive storage circuit (16).
Embodiment
Permanent magnet mechanism circuit-breaker minute, closing circuit adds suitable electric capacity, by DC power supply, to capacitor charging, in divide-shut brake moment, by electric capacity stored energy, discharged in loop, reduce or abandon the requirement of DC power supply to divide-shut brake moment power supply fully.The utility model provide a kind of permanent magnet mechanism circuit-breaker minute, closing circuit, it comprises operating power 12, closing circuit 13, sub-gate circuit 14, accumulation power supply 15, electric motor loop and capacitive storage circuit 16.Control box 1 is connected with closing coil 2 or switching winding 3 according to action need, accumulation power supply loop 4 is by charging terminal K9, K10 access controller 8, controller 8 is by current-limiting charge terminal K1, K11 access charging current limiter resistance 11, controller 8 is 6 chargings of combined floodgate electric capacity through energy storage terminal K6, K8, and controller 8 is 7 chargings of separating brake electric capacity through energy storage terminal K7, K8.
Specific embodiments:
During closing operation: control box 1 is connected with permanent magnet mechanism circuit-breaker closing coil 2, and closing coil 2 is charged, closing coil auxiliary contact 5 closures, pass through accumulation power supply loop 4 by charging terminal K9 simultaneously, K10 access controller 8, controller 8 is again by current-limiting charge terminal K1, and K11 accesses charging current limiter resistance 11, controller 8 is again through energy storage terminal K6, K8 is 6 chargings of combined floodgate electric capacity, after closing coil auxiliary contact 5 closures, and 6 electric discharges of combined floodgate electric capacity, operating coil 10 is charged, completes closing operation.
During sub-switching operation: control box 1 is connected with permanent magnet mechanism circuit-breaker switching winding 3, and switching winding 3 is charged, switching winding auxiliary contact 9 closures, pass through accumulation power supply loop 4 by charging terminal K9 simultaneously, K10 access controller 8, controller 8 is again by current-limiting charge terminal K1, and K11 accesses charging current limiter resistance 11, controller 8 is again through energy storage terminal K7, K8 is 7 chargings of separating brake electric capacity, after switching winding auxiliary contact 9 closures, and 7 electric discharges of separating brake electric capacity, operating coil 10 is charged, completes sub-switching operation.
The utility model efficiently solves the excessive problem of switching current of permanent magnet mechanism, has reduced the cross section requirement to DC power supply capacity and cable.Do not need producer to manufacture existing circuit breaker redesign; be conducive to construction, operation and maintenance; and during permanent magnet mechanism circuit-breaker work, direct current system is impacted large; and employing increases the scheme of capacitor; both reduced the direct current cables sectional area; reduce project cost, also protected direct current system to avoid being subject to larger impact.Also reduced the limitation that permanent magnet mechanism is closely used.For the shortcoming of present stage permanent magnet mechanism, this programme is very applicable.There is initiative and good generalization.
Claims (2)
1. a permanent magnet mechanism circuit-breaker divides, closing circuit, comprise operating power (12), closing circuit (13), sub-gate circuit (14), accumulation power supply (15), electric motor loop and capacitive storage circuit (16), it is characterized in that: control box (1) is connected with closing coil (2) or switching winding (3) according to action need, accumulation power supply loop (4) is by charging terminal K9, K10 access controller (8), controller (8) is by current-limiting charge terminal K1, K11 accesses charging current limiter resistance (11), closing circuit middle controller (8) is through energy storage terminal K6, K8 is combined floodgate electric capacity (6) charging, sub-gate circuit middle controller (8) is through energy storage terminal K7, K8 is separating brake electric capacity (7) charging.
A kind of permanent magnet mechanism circuit-breaker as claimed in claim 1 minute, closing circuit, wherein according to minute, the size of switching current selects different separating brake electric capacity (7), combined floodgate electric capacity (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320382931 CN203367188U (en) | 2013-06-29 | 2013-06-29 | Opening/closing loop of permanent magnetic mechanism breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320382931 CN203367188U (en) | 2013-06-29 | 2013-06-29 | Opening/closing loop of permanent magnetic mechanism breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203367188U true CN203367188U (en) | 2013-12-25 |
Family
ID=49814911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320382931 Expired - Fee Related CN203367188U (en) | 2013-06-29 | 2013-06-29 | Opening/closing loop of permanent magnetic mechanism breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203367188U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362754A (en) * | 2014-11-27 | 2015-02-18 | 国家电网公司 | Opening and closing circuit based on capacitive type permanent magnetic mechanism |
| CN106410804A (en) * | 2016-11-07 | 2017-02-15 | 珠海许继电气有限公司 | Pole-mounted circuit-breaker assembly operation power supply system |
| CN109545633A (en) * | 2018-11-16 | 2019-03-29 | 深圳供电局有限公司 | A kind of permanent-magnet breaker |
-
2013
- 2013-06-29 CN CN 201320382931 patent/CN203367188U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104362754A (en) * | 2014-11-27 | 2015-02-18 | 国家电网公司 | Opening and closing circuit based on capacitive type permanent magnetic mechanism |
| CN106410804A (en) * | 2016-11-07 | 2017-02-15 | 珠海许继电气有限公司 | Pole-mounted circuit-breaker assembly operation power supply system |
| CN109545633A (en) * | 2018-11-16 | 2019-03-29 | 深圳供电局有限公司 | A kind of permanent-magnet breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: INNER MONGOLIA ELECTRIC POWER SURVEY DESIGN INSTIT Free format text: FORMER NAME: INNER MONGOLIA ELECTRICAL POWER INVESTIGATE AND DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 010010 Hohhot, the Inner Mongolia Autonomous Region Tin Road, No. 209 Patentee after: INNER MONGOLIA POWER SURVEY & DESIGN INSTITUTE Co.,Ltd. Address before: 010010 Hohhot, the Inner Mongolia Autonomous Region Tin Road, No. 209 Patentee before: Inner Mongolia Electric Power Survey Design Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |