CN203910718U - Apparatus for preventing false switching of a breaker if no power exists at an electrical network side - Google Patents
Apparatus for preventing false switching of a breaker if no power exists at an electrical network side Download PDFInfo
- Publication number
- CN203910718U CN203910718U CN201420077574.4U CN201420077574U CN203910718U CN 203910718 U CN203910718 U CN 203910718U CN 201420077574 U CN201420077574 U CN 201420077574U CN 203910718 U CN203910718 U CN 203910718U
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- China
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- electrical network
- lever
- network side
- drive mechanism
- electromagnetic drive
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Abstract
The utility model relates to an apparatus for preventing false switching of a breaker if no power exists at an electrical network side. The apparatus comprises a rocking bar (1), a movable contact electrode (2), a static contact electrode (3), a trigger, a position jamming plate (9), a position blocking plate (4), and a lever mechanism. The lever mechanism includes a lever (6) and an extension spring (5). One end of the lever (6) is connected with the position blocking plate (4) through triggering and is also connected with the extension spring (5). The other end of the lever (6) is equipped with an electromagnetic drive mechanism (7). One end of the electromagnetic drive mechanism (7) is connected with the static contact electrode (3), and the other end of the electromagnetic drive mechanism (7) is connected with an electrical network side zero line. The static contact electrode (3) is connected with an electrical network side live line. The apparatus enables a breaker not to be switched on if no power exists at an electrical network side under a condition that electrical network side lines break down or power-off maintenance is conducted, so that the life and property of maintenance workers at an electrical network side is protected, and equipment is protected.
Description
technical field
The utility model relates to a kind of circuit breaker, and especially anti-grid side is without electric error closing device.
Background technology
At present, distributed power generation is during against power transmission, and general circuit breaker does not have grid side without electric anti-error closing device, and an out of order side is in the situation that carrying out fault and maintenance, the circuit breaker power transmission of by mistake closing, very easily produces harm to maintainer's life security and equipment property safety.
Summary of the invention
The purpose of this utility model is to provide the anti-electrical network of a kind of circuit breaker without electric error closing device.
Comprise rocking bar (1), the movable contact utmost point (2), the stationary contact utmost point (3), trigger, block board (9), also comprise position-stopping plate (4), leverage, described leverage comprises lever (6) and extension spring (5), one end of described lever (6) also connects extension spring (5) when stirring connection position-stopping plate (4), the other end of lever (6) is established electromagnetic drive mechanism (7), and electromagnetic drive mechanism (7) is connected with grid side.
Further, described electromagnetic drive mechanism (7) comprises motion bar, and described motion bar is provided with hook.
Further, the stationary contact utmost point (3) is connected with grid side live wire.
In grid side, have electric in the situation that, grid side live wire connects the stationary contact utmost point (3), electromagnetic drive mechanism (7) obtains electric or by after grid side terminal voltage signal analyzing and processing by power line (8) at the end of incoming cables stationary contact utmost point (3) and grid side zero line, electromagnetic drive mechanism (7) generates an electromagnetic field and produces adhesive action, the suction-combining force that electromagnetic field produces is greater than the pulling force of extension spring (5), hook-hanging motion on electromagnetic mechanism (7), hook drives lever (6) front end to move upward, now, position-stopping plate on disconnecting mechanism (4) resets by the torsionspring (10) of (4) on position-stopping plate, trigger is buckled on block board, circuit breaker can close a floodgate.
Undesirable without electricity or grid side voltage in grid side, as overvoltage, under-voltage, under phase shortage Qing Indistinct, grid side live wire connects the stationary contact utmost point (3), therefore electromagnetic drive mechanism (7) can not obtain electric by the stationary contact utmost point (3) and grid side zero line, electromagnetic drive mechanism (7) can not generate an electromagnetic field and produce adhesive action, leverage (6) drives lever (6) front end to move downward under the effect of extension spring, position-stopping plate (4) can not be resetted, now, circuit breaker can not reset and withstand block board (9) at position-stopping plate (4), trigger is buckled in block board (9) and can not transmits under power Qing Indistinct and can not close a floodgate, thereby reach the order ground that can not close a floodgate without electricity.
The present invention is installed anti-grid side additional without electric error closing device to circuit breaker, the safety of protection maintainer's life security and equipment property.
Accompanying drawing explanation
Fig. 1 is that grid side has electric energy "on" position structural representation.
Fig. 2 is that grid side can not "on" position structural representation without electricity.
Fig. 3 is the A portion structure enlarged diagram of Fig. 1.
Fig. 4 is the B portion structure enlarged diagram of Fig. 2.
Embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the present embodiment comprises rocking bar 1, the movable contact utmost point 2, the stationary contact utmost point 3, position-stopping plate 4, extension spring 5, lever 6, electromagnetic drive mechanism 7, power line 8, block board 9, position-stopping plate torque spring 10, power line 8 comprises zero line and the live wire of grid side.
In circuit breaker, establish the position-stopping plate 4 extending backward, install leverage additional, base is connected with lever 6 use extension springs 5, the other end dress electromagnetic drive mechanism 7 of lever 6, on the motion bar of electromagnetic drive mechanism 7, there is a hook, hook can drive lever 6 motion, and the stationary contact utmost point 3 connects grid side live wires, and the movable contact utmost point 2 can connecting to neutral line or the live wire of another phase.
In grid side, have electric in the situation that, electromagnetic drive mechanism 7 obtains electric by power line 8 at the end of incoming cables stationary contact utmost point 3 and grid side zero line, Electromagnetic Drive structure 7 generates an electromagnetic field and produces adhesive action, the suction-combining force that electromagnetic field produces is greater than the pulling force of extension spring 5, the hook-hanging motion on electromagnetic drive mechanism 7, and hook drives lever 6 front ends to move upward, now, position-stopping plate 4 on disconnecting mechanism resets by 4 torsionspring on position-stopping plate 10, and trigger is buckled on block board, and circuit breaker can close a floodgate.
Grid side without electric Qing Indistinct under, electromagnetic drive mechanism 7 can not obtain electric by the stationary contact utmost point 3 and grid side zero line, electromagnetic drive mechanism 7 can not generate an electromagnetic field and produce adhesive action, lever 6 drives lever 6 front ends to move downward under the effect of extension spring, position-stopping plate 4 can not be resetted, and now, circuit breaker can not reset and withstand block board 9 at position-stopping plate 4, trigger is buckled in block board 9 and can not transmits under power Qing Indistinct and can not close a floodgate, thereby reaches the order ground that can not close a floodgate without electricity.
Claims (3)
1. the anti-electrical network of circuit breaker is without electric error closing device, comprise rocking bar (1), the movable contact utmost point (2), the stationary contact utmost point (3), trigger, block board (9), it is characterized in that: also comprise position-stopping plate (4), leverage, described leverage comprises lever (6) and extension spring (5), one end of described lever (6) also connects extension spring (5) when stirring connection position-stopping plate (4), the other end of lever (6) is established electromagnetic drive mechanism (7), and electromagnetic drive mechanism (7) is connected with grid side.
2. the anti-electrical network of a kind of circuit breaker according to claim 1, without electric error closing device, is characterized in that, described electromagnetic drive mechanism (7) comprises motion bar, and described motion bar is provided with hook.
3. the anti-electrical network of a kind of circuit breaker according to claim 1, without electric error closing device, is characterized in that, the stationary contact utmost point (3) is connected with grid side live wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077574.4U CN203910718U (en) | 2014-02-24 | 2014-02-24 | Apparatus for preventing false switching of a breaker if no power exists at an electrical network side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420077574.4U CN203910718U (en) | 2014-02-24 | 2014-02-24 | Apparatus for preventing false switching of a breaker if no power exists at an electrical network side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910718U true CN203910718U (en) | 2014-10-29 |
Family
ID=51784973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420077574.4U Expired - Fee Related CN203910718U (en) | 2014-02-24 | 2014-02-24 | Apparatus for preventing false switching of a breaker if no power exists at an electrical network side |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384698A (en) * | 2016-11-17 | 2017-02-08 | 国网福建省电力有限公司 | Low-voltage distributed power supply grid connecting switch |
| TWI687011B (en) * | 2019-02-25 | 2020-03-01 | 陳錫瑜 | High-voltage circuit breaker panel control device for preventing reverse power transmission |
-
2014
- 2014-02-24 CN CN201420077574.4U patent/CN203910718U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384698A (en) * | 2016-11-17 | 2017-02-08 | 国网福建省电力有限公司 | Low-voltage distributed power supply grid connecting switch |
| TWI687011B (en) * | 2019-02-25 | 2020-03-01 | 陳錫瑜 | High-voltage circuit breaker panel control device for preventing reverse power transmission |
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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: 20141029 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |