CN104362754A - Opening and closing circuit based on capacitive type permanent magnetic mechanism - Google Patents
Opening and closing circuit based on capacitive type permanent magnetic mechanism Download PDFInfo
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- CN104362754A CN104362754A CN201410689213.XA CN201410689213A CN104362754A CN 104362754 A CN104362754 A CN 104362754A CN 201410689213 A CN201410689213 A CN 201410689213A CN 104362754 A CN104362754 A CN 104362754A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 21
- 230000005389 magnetism Effects 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to an opening and closing circuit based on a capacitive type permanent magnetic mechanism. The opening and closing circuit comprises an opening circuit, a closing circuit and a permanent magnetic coil L connected with the opening circuit and the closing circuit in series. The closing circuit comprises a closing contactor KMC and a closing switch K2. The two sides of the permanent magnetic coil L are connected with the contact KMC3-1 and the contact KMC3-2 of the closing contactor KMC. The two sides of the opening circuit are connected with the contact KMC2-1 and the contact KMC 2-2 of the direct-current contactor KMC. A winding resistor R1 and a winding resistor R2 are arranged between the contact KMC2-1 and the contact KMC2-2. An opening switch K2 is arranged in front of the contact KMC2-2. The resistor R2 and the resistor R1 are connected to the positive electrode and the negative electrode of the permanent magnetic coil L in the reverse direction respectively. Under the condition that a body frame of a high-voltage cabinet is kept unchanged, by refitting a circuit breaker opening and closing circuit, detaching charging capacitors, changing control circuits and adding the closing contactor, the normal opening and closing and related characteristics of a permanent magnetic mechanism circuit breaker are ensured while no frequently-faulted devices such as opening and closing controllers, power supply boxes and discharging capacitors are adopted for the permanent magnetic mechanism circuit breaker.
Description
Technical field
The application relates to a kind of based on capacitor type permanent magnet mechanism sub-switch circuit.
Background technology
Permanent-magnet manipulating mechanism vacuum circuit-breaker is firstly appeared in the electric group of German Te Ruide, formally enters Chinese market at the bottom of calendar year 2001, becomes the trend of permanent magnetic vacuum breaker operating mechanism development gradually.This type of circuit breaker is few with its distinctive miniaturization, machine components, and reliability high, non-maintaining and long-life becomes the focus that permanent magnetic vacuum breaker operating mechanism is promoted.But the capacitor charge and discharge type permanent magnet mechanism circuit-breaker used at present, in the process used, mainly there is following problem:
1, controller failure rate is high: circuit breaker on/off switch controls by controller completely, and when controller breaks down, circuit breaker can not carry out breaking-closing operating.110 kilovolts of red flag slopes become 10 kilovolts of outlets occur running for four times in because of controller failure can not separating brake, cause stopping bus and carry out power failure operation.Aksu wooden land 110 kv substation and Ku Che 110 kilovolts of each double appearance of chemical industry garden transformer station because of controller failure causes 10 kilovolts of outlets can not electric switch-on, incur loss through delay power transmission.
2, electric capacity easily occurs that feedback is held: permanent magnet mechanism coil breaking-closing operating drives by capacitor discharge completely, can not complete breaking-closing operating when electric capacity occurs that feedback is held.Because of continuous discharge and recharge during reclosing action, electric capacity, once occur that feedback is held, causes unsuccessful reclosing, impact customer power supply.Capacitor charging has controlled by charging power box completely in addition, and boosts to DC360V, when power pack breaks down, cannot carry out charging and boosting, and without supervision measure.
3, signal monitoring loop imperfection: have a pair energy storage state output contact in controller for monitoring capacitance energy storage state, but directly can not measure the capacity (needing configure dedicated instrument) of electric capacity.This signal has been drawn and has been uploaded centralized control center, controller partial fault can be monitored, but when still there is controller failure in running or the phenomenon that sends of electric capacity no signal, causing can not Timeliness coverage problem, can not Timeliness coverage if controller breaks down, during line fault, circuit breaker is refused point will cause fault spread.
4, standby redundancy difficulty: the capacitor charge and discharge type permanent magnet mechanism circuit-breaker used at present, the controller CPU module drive time is arranged by every platform breaker trip, cause the time constant of different circuit breaker different, can not be for subsequent use each other, bring difficulty to purchasing standby redundancy.
How reducing the failure factor of capacitor charge and discharge type permanent magnet mechanism circuit-breaker, ensure the safe and stable operation of electrical network, is one of technical barrier of facing of service technician.
Summary of the invention
While the object of the application is to propose a kind of device not adopting the Frequent Troubles such as divide-shut brake controller, power pack, discharge capacity, retain the feature that the exclusive structure of permanent magnet mechanism is simple, non-maintaining, ensure that the normal divide-shut brake of permanent magnet mechanism circuit-breaker and correlation properties based on capacitor type permanent magnet mechanism sub-switch circuit.
The object of the application to be achieved in that based on capacitor type permanent magnet mechanism sub-switch circuit it comprises point, closing circuit, and the permanent magnetism coil L connected with both.Described closing circuit comprises closing contactor KMC and closing switch K1; Permanent magnetism coil L both sides are connected with contact KMC3-1 with KMC3-2 of closing contactor KMC; Described sub-gate circuit both sides are connected with contact KMC2-1, KMC2-2 of D.C. contactor KMC, wire resistor R1, R2 is equiped with between contact KMC2-1, KMC2-2, before contact KMC2-2, be provided with separating brake K switch 2, described resistance R2, R1 difference Opposite direction connection is at permanent magnetism coil L both positive and negative polarity place.
Owing to implementing technique scheme, the application is by when keeping high-voltage switch cabinet body main body frame constant, by the transformation of circuit-breaker switching on-off circuit, remove charging capacitor, Variation control loop, increase closing contactor, achieve permanent magnet mechanism circuit-breaker while the device not adopting the Frequent Troubles such as divide-shut brake controller, power pack, discharge capacity, retain the feature that the exclusive structure of permanent magnet mechanism is simple, non-maintaining, ensure that the normal divide-shut brake of permanent magnet mechanism circuit-breaker and correlation properties.Improved permanent magnet mechanism circuit-breaker no longer occurs because of Frequent Troubles phenomenon.
Accompanying drawing illustrates: the concrete structure of the application is provided by following drawings and Examples:
Fig. 1 is based on capacitor type permanent magnet mechanism sub-switch circuit schematic diagram.
Embodiment: the application by the restriction of following embodiment, can not determine concrete execution mode according to the technical scheme of the application and actual conditions.
Embodiment: as shown in Figure 1, based on capacitor type permanent magnet mechanism sub-switch circuit it to comprise point, closing circuit, and the permanent magnetism coil L connected with both, point, closing circuit is connected with DC power supply.Described closing circuit comprises closing contactor KMC and closing switch K1; Permanent magnetism coil L both sides are connected with contact KMC3-1 with KMC3-2 of closing contactor KMC; Described sub-gate circuit both sides are connected with contact KMC2-1, KMC2-2 of D.C. contactor KMC, are equiped with wire resistor R1, R2 between contact KMC2-1, KMC2-2, are provided with separating brake K switch 2 before contact KMC2-2.Described resistance R2, R1 difference Opposite direction connection is at permanent magnetism coil L both positive and negative polarity place.
Closing circuit is gone back circuit and is connected with circuit breaker Q F and closing protective device BH.Closing protective device BH time constant is arranged on 150 ~ 200ms, prevents closing contactor KMC1 long charged.
Rectifier diode D is also connected with before the wire resistor R1 of sub-gate circuit.
Described point, closing switch K2, K1 interlock.When closing switch K2 closes, separating brake K switch 1 disconnects.
Described point, closing circuit, and permanent magnetism coil L two tip node of connecting with both is reserved with power interface.Described permanent magnetism coil L two ends are all reserved with duplicate supply interface in parallel.
During use, closing pulse starts closing contactor KMC by 14,4 terminals of closing circuit, permanent magnetism coil L leads to forward current, make electromagnetic force Downward addition, drive former circuit breaker to move iron core and move downward, drive former breaker main shaft by former output shaft of circuit breaker, former circuit breaker transmission crank arm and former insulating pull rod for breaker drive the former circuit breaker moving conductive rod of former breaker vacuum arc control device to move upward, meanwhile, former contact of breaker disc spring is compressed, and former breaker open operation spring is elongated.The dynamic and static iron core contact of former circuit breaker has kept closing operation through permanent magnetism.Shutting-brake control loop current 0.5A, permanent magnetism coil L switching current 23A.
During separating brake, separating brake pulse is by sub-gate circuit 30,31 terminal starting and permanent magnet coil L, permanent magnetism coil L leads to reverse current, and electromagnetic field oppositely superposes with permanent magnetic field, closing retention force is gathered and drops to critical value, remove former breaker closing magnetic padlock button, former circuit breaker iron core is moved upward, former breaker main shaft rotates under former breaker open operation extension spring and the effect of former contact of breaker disc spring, drive the former circuit breaker of former breaker vacuum arc control device to move guide rod to move downward, thus complete separating brake action.Meanwhile, former breaker open operation extension spring resets, and makes the application reliably remain on open position.
When closing contactor KMC lost efficacy, the duplicate supply interface that permanent magnetism coil L two ends are reserved directly can be connected with power supply, directly logical forward current, drives former circuit breaker to move iron core and moves downward.Or logical reverse current, drive former circuit breaker to move iron core and move upward.
Above technical characteristic constitutes the most preferred embodiment of the application, and it has stronger adaptability and best implementation result, can increase and decrease inessential technical characteristic according to actual needs, meet the needs of different situations.
Claims (7)
1., based on a capacitor type permanent magnet mechanism sub-switch circuit, it comprises point, closing circuit, and the permanent magnetism coil L connected with both, it is characterized in that: described closing circuit comprises closing contactor KMC and closing switch K1; Permanent magnetism coil L both sides are connected with contact KMC3-1 with KMC3-2 of closing contactor KMC; Described sub-gate circuit both sides are connected with contact KMC2-1, KMC2-2 of D.C. contactor KMC, wire resistor R1, R2 is equiped with between contact KMC2-1, KMC2-2, before contact KMC2-2, be provided with separating brake K switch 2, described resistance R2, R1 difference Opposite direction connection is at permanent magnetism coil L both positive and negative polarity place.
2. as claimed in claim 1 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: before the wire resistor R1 of sub-gate circuit, be also connected with rectifier diode D.
3. as claimed in claim 1 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: on closing circuit, go back circuit be connected with circuit breaker Q F and closing protective device BH.
4. as claimed in claim 3 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: closing protective device BH time constant is arranged on 150 ~ 200ms.
5. as claimed in claim 1 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: described point, closing switch K2, K1 interlock, when closing switch K2 closes, separating brake K switch 1 disconnects.
6. as claimed in claim 1 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: described point, closing circuit, and permanent magnetism coil L two tip node of connecting with both is reserved with power interface.
7. as claimed in claim 6 based on capacitor type permanent magnet mechanism sub-switch circuit, it is characterized in that: described permanent magnetism coil L two ends are all reserved with duplicate supply interface in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689213.XA CN104362754A (en) | 2014-11-27 | 2014-11-27 | Opening and closing circuit based on capacitive type permanent magnetic mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410689213.XA CN104362754A (en) | 2014-11-27 | 2014-11-27 | Opening and closing circuit based on capacitive type permanent magnetic mechanism |
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| CN104362754A true CN104362754A (en) | 2015-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410689213.XA Pending CN104362754A (en) | 2014-11-27 | 2014-11-27 | Opening and closing circuit based on capacitive type permanent magnetic mechanism |
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| CN (1) | CN104362754A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300033A (en) * | 2015-05-11 | 2017-01-04 | 江苏中自电气技术有限公司 | A kind of control loop of the permanent magnetic vacuum breaker on middle-placed switch cabinet |
| CN107017134A (en) * | 2017-04-24 | 2017-08-04 | 平高集团有限公司 | A kind of short time-delay breaker and its sub-gate circuit and operating mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1906423A1 (en) * | 2006-09-29 | 2008-04-02 | ABB Research Ltd | A drive system |
| CN102339695A (en) * | 2010-07-27 | 2012-02-01 | 安徽龙波电气有限公司 | Control system for permanent magnetic actuator of circuit breaker |
| CN202231403U (en) * | 2011-09-15 | 2012-05-23 | 安徽鑫龙电器股份有限公司 | Closing protection device of permanent magnetism operating mechanism |
| CN203367188U (en) * | 2013-06-29 | 2013-12-25 | 内蒙古电力勘测设计院 | Opening/closing loop of permanent magnetic mechanism breaker |
| CN104021978A (en) * | 2014-06-25 | 2014-09-03 | 法泰电器（江苏）股份有限公司 | Constant-current charging switching device for switching-on switching-off capacitor of permanent magnet vacuum switch and control method thereof |
| CN204231027U (en) * | 2014-11-27 | 2015-03-25 | 国家电网公司 | Based on capacitor type permanent magnet mechanism sub-switch circuit |
-
2014
- 2014-11-27 CN CN201410689213.XA patent/CN104362754A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1906423A1 (en) * | 2006-09-29 | 2008-04-02 | ABB Research Ltd | A drive system |
| CN102339695A (en) * | 2010-07-27 | 2012-02-01 | 安徽龙波电气有限公司 | Control system for permanent magnetic actuator of circuit breaker |
| CN202231403U (en) * | 2011-09-15 | 2012-05-23 | 安徽鑫龙电器股份有限公司 | Closing protection device of permanent magnetism operating mechanism |
| CN203367188U (en) * | 2013-06-29 | 2013-12-25 | 内蒙古电力勘测设计院 | Opening/closing loop of permanent magnetic mechanism breaker |
| CN104021978A (en) * | 2014-06-25 | 2014-09-03 | 法泰电器（江苏）股份有限公司 | Constant-current charging switching device for switching-on switching-off capacitor of permanent magnet vacuum switch and control method thereof |
| CN204231027U (en) * | 2014-11-27 | 2015-03-25 | 国家电网公司 | Based on capacitor type permanent magnet mechanism sub-switch circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300033A (en) * | 2015-05-11 | 2017-01-04 | 江苏中自电气技术有限公司 | A kind of control loop of the permanent magnetic vacuum breaker on middle-placed switch cabinet |
| CN106300033B (en) * | 2015-05-11 | 2018-03-06 | 江苏中自电气技术有限公司 | A kind of control loop of permanent magnetic vacuum breaker on middle-placed switch cabinet |
| CN107017134A (en) * | 2017-04-24 | 2017-08-04 | 平高集团有限公司 | A kind of short time-delay breaker and its sub-gate circuit and operating mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160303 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: Aksu electric company of Guo Wang Xinjiang power company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: STATE GRID XINJIANG AKSU POWER SUPPLY CO., LTD. |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |