CN202231403U - Closing protection device of permanent magnetism operating mechanism - Google Patents
Closing protection device of permanent magnetism operating mechanism Download PDFInfo
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- CN202231403U CN202231403U CN2011203456855U CN201120345685U CN202231403U CN 202231403 U CN202231403 U CN 202231403U CN 2011203456855 U CN2011203456855 U CN 2011203456855U CN 201120345685 U CN201120345685 U CN 201120345685U CN 202231403 U CN202231403 U CN 202231403U
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- relay
- protective device
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Abstract
The present utility model discloses a closing protection device of a permanent magnetism operating mechanism. The device is characterized in that a pin 1 an a pin 3 of the protection device are respectively connected with an anode and a cathode of a power supply loop of the permanent magnetism operating mechanism, a pair of time-delay contacts of a time relay KT is connected with a pin 2 and the pin 3, the pin 2 is connected with the cathode of the power supply loop through a load loop, and one group of low voltage output contacts of a voltage relay KV is connected with a low voltage alarm loop after being connected with a pin 4 and a pin 5. As the above circuit structure is adopted, the device has the following advantages, first, the permanent magnetism operating mechanism can be protected when the power supply voltage is over-voltage or under-voltage; second, an alarm can be given out to the outside; and third, improvements are small, and improvements can be made on the basis of the prior product.
Description
Relate to the field
The utility model relates to the permanent magnetism vacuum circuit-breaker, particularly the closing protective device of relay control permanent-magnet manipulating mechanism.
Background technology
The permanent magnetism vacuum circuit-breaker is a kind of of vacuum circuit-breaker.It utilizes permanent-magnet manipulating mechanism that vacuum circuit-breaker is operated, and compares with traditional operating mechanism, and its parts only are 7% of traditional operating mechanism parts; Need not mechanical trip gear; The fault point is few, and reliability is high, long service life; Wherein the permanent-magnet operating mechanism life-span can reach more than 100,000 times, is suitable for the application in places such as frequent operation and highly reliable transformer station.Utilize permanent-magnet manipulating mechanism to overcome the deficiency of conventional springs mechanism and electromagnetic mechanism as the vacuum circuit-breaker of operating mechanism; Realize the maintenance and the operating process of vacuum circuit-breaker branch, closing position simultaneously through permanent magnetic material, thereby reach the stable operation in high reliability and frequent operation and adverse circumstances place.
The control of the direct current relay of employing is arranged in the permanent magnetism Permanent magnet actuators for vacuum circuit breakers, but very high to the stability requirement of supply voltage.To over-and under-voltage, phenomenon unprotect such as overtime causes damage to first device easily.
When over-and under-voltage appears in supply voltage, be the problem that prior art need solve to permanent-magnet manipulating mechanism protection.
The utility model content
The utility model technical problem to be solved is a kind of closing protective device of permanent-magnet manipulating mechanism to be provided, to reach the effect of when over-and under-voltage appears in supply voltage, permanent-magnet manipulating mechanism being protected.
For achieving the above object, the technical scheme of the utility model is that a kind of closing protective device of permanent-magnet manipulating mechanism is characterized in that: the pin 1,3 of described protective device inserts the both positive and negative polarity of the electric power loop of permanent-magnet manipulating mechanism respectively; The a pair of delayed contact of time relay KT inserts pin 2,3, and pin 2 inserts the negative pole of electric power loop through load circuit; One group of low-voltage output contact of voltage relay KV is connected to pin 4,5 back and inserts the low-voltage alarm circuits, thereby realizes the protection of permanent-magnet manipulating mechanism and give the alarm to external world at the same time.
Load in the described load circuit is the coil of D.C. contactor, thereby realizes overtime warning function to external world through the closure of D.C. contactor.
It is off-state that the low-voltage contact of described voltage relay KV perhaps equals at 0 o'clock at voltage more than or equal to 75%; When voltage is closure state less than 75% the time.
The pin 6 of described protective device is connected with anti-trip relay KO, moves when tripping with convenient relay protection, guarantees that anti-trip relay reliably starts.
A kind of closing protective device of permanent-magnet manipulating mechanism, owing to adopt the foregoing circuit structure, this device has the following advantages: 1, when over-and under-voltage appears in supply voltage, permanent-magnet manipulating mechanism is protected; 2, in protection, can give the alarm to external world; 3, change lessly, be adapted at improving on the basis of existing product.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation;
Fig. 1 is the winding diagram in permanent-magnet manipulating mechanism of the closing protective device of a kind of permanent-magnet manipulating mechanism of the utility model;
Fig. 2 is the closing protective manipulated or operated apparatus of a kind of permanent-magnet manipulating mechanism of the utility model.
Embodiment
The pin 1,3 of the utility model inserts the both positive and negative polarity of the electric power loop of permanent-magnet manipulating mechanism respectively; The a pair of delayed contact of time relay KT inserts pin 2,3, and pin 2 inserts the negative pole of electric power loop through load circuit; One group of low-voltage output contact of voltage relay KV is connected to pin 4,5 back and inserts the low-voltage alarm circuits, thereby realizes the protection of permanent-magnet manipulating mechanism and give the alarm to external world at the same time.
It is off-state that the low-voltage contact of voltage relay KV perhaps equals at 0 o'clock at voltage more than or equal to 75%; When voltage is closure state less than 75% the time.The operating voltage of contact: DC220V; Contact capacity:＜0.2A.
The pin 6 of the utility model is taken over control the jumping relay, moves when tripping with convenient relay protection, and anti-trip relay is reliably started.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as the various improvement of having adopted the utility model technical scheme to carry out; Or directly apply to other occasion without improvement, all within the protection range of the utility model.
Claims (4)
1. the closing protective device of a permanent-magnet manipulating mechanism, it is characterized in that: the pin of described protective device (1,3) inserts the both positive and negative polarity of the electric power loop of permanent-magnet manipulating mechanism respectively; The a pair of delayed contact of the time relay (KT) inserts pin (2,3), and pin (2) inserts the negative pole of electric power loop through load circuit; One group of low-voltage output contact of voltage relay (KV) is connected to pin (4,5) back and inserts the low-voltage alarm circuit.
2. the closing protective device of a kind of permanent-magnet manipulating mechanism according to claim 1, it is characterized in that: the load in the described load circuit is the coil of D.C. contactor.
3. the closing protective device of a kind of permanent-magnet manipulating mechanism according to claim 1 is characterized in that: the low-voltage contact of described voltage relay KV at voltage more than or equal to 75% or to equal at 0 o'clock be off-state; When voltage is closure state less than 75% the time.
4. the closing protective device of a kind of permanent-magnet manipulating mechanism according to claim 1, it is characterized in that: the pin 6 of described protective device is connected with anti-trip relay KO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203456855U CN202231403U (en) | 2011-09-15 | 2011-09-15 | Closing protection device of permanent magnetism operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203456855U CN202231403U (en) | 2011-09-15 | 2011-09-15 | Closing protection device of permanent magnetism operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202231403U true CN202231403U (en) | 2012-05-23 |
Family
ID=46081977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203456855U Expired - Fee Related CN202231403U (en) | 2011-09-15 | 2011-09-15 | Closing protection device of permanent magnetism operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202231403U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617922A (en) * | 2013-12-10 | 2014-03-05 | 戴顿（重庆）高压开关有限公司 | Universal alternating current and direct current trip detection circuit used for vacuum circuit breaker |
| 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 |
| 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 |
-
2011
- 2011-09-15 CN CN2011203456855U patent/CN202231403U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617922A (en) * | 2013-12-10 | 2014-03-05 | 戴顿（重庆）高压开关有限公司 | Universal alternating current and direct current trip detection circuit used for vacuum circuit breaker |
| CN103617922B (en) * | 2013-12-10 | 2015-10-28 | 戴顿（重庆）高压开关有限公司 | AC/DC universal for vacuum circuit-breaker jumps position testing circuit |
| 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 |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140915 |
|
| EXPY | Termination of patent right or utility model |