CN213815886U - Closing locking self-checking state indicating device - Google Patents
Closing locking self-checking state indicating device Download PDFInfo
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- CN213815886U CN213815886U CN202022739488.3U CN202022739488U CN213815886U CN 213815886 U CN213815886 U CN 213815886U CN 202022739488 U CN202022739488 U CN 202022739488U CN 213815886 U CN213815886 U CN 213815886U
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- closing
- indicating device
- circuit breaker
- self
- state indicating
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Abstract
The utility model belongs to the technical field of electric power infrastructure, in particular to combined floodgate shutting self-checking state indicating device. Set up in standard handcart-type cubical switchboard, its characterized in that: including state indication panel and with the former floodgate of standard handcart-type cubical switchboard block up a plurality of connecting circuit that self-checking circuit electricity is connected, specifically: in a closing and locking loop of the circuit breaker, a manual button is led out from two ends of a closing normally-open auxiliary contact of the circuit breaker and connected with a panel of the comprehensive state indicating device in parallel; the circuit breaker closing locking electromagnet stroke switch is additionally provided with a normally open contact which acts to close along with a closing loop contact when a closing locking electromagnet acts. The utility model provides a combined floodgate shutting self-checking state indicating device method can be effectively under the circuit breaker running state, inspects the integrity in combined floodgate shutting return circuit to guarantee the effective realization of reclosing lock function to a certain extent.
Description
Technical Field
The utility model belongs to the technical field of electric power infrastructure, in particular to combined floodgate shutting self-checking state indicating device.
Background
The control circuit of the high-voltage circuit breaker realizes the closing and opening operation of the circuit breaker, and the effective monitoring of the closing and opening circuit of the circuit breaker is always an important means for ensuring the effective closing and opening operation of the circuit breaker. Generally adopt the design of combined floodgate shutting in handcart-type circuit breaker operation circuit 35 kilovolts and below, the guarantee circuit breaker only just allows the operation of closing a floodgate at experimental or operating position, but the circuit breaker is under the running state (handcart is at operating position, circuit breaker combined floodgate state) for a long time, the unable supervision of combined floodgate return circuit, whether combined floodgate shutting electro-magnet can be reliable action can't know, this buries down great hidden danger for the circuit breaker that has the automatic reclosing function, cause the circuit breaker to receive the unable coincidence that realizes of interim trouble, reduce the power supply reliability.
Disclosure of Invention
An object of the utility model is to provide a combined floodgate shutting self-checking state indicating device to can be under the circuit breaker operational aspect, self-checking shutting return circuit integrity, and then effectively realize for protection device that the autoeclosing function provides the support.
The utility model provides a combined floodgate shutting self-checking state indicating device method can be effectively under the circuit breaker running state, inspects the integrity in combined floodgate shutting return circuit to guarantee the effective realization of reclosing lock function to a certain extent. The operation and maintenance personnel can realize the self-checking of the closing and locking loop of the circuit breaker through the button in the daily inspection process, and judge the integrity of the closing and locking and unlocking functions by lighting the self-checking indicator lamp, so that the operation stability and the power supply reliability of the transformer substation are improved.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a combined floodgate shutting self-checking state indicating device is on traditional comprehensive state indicating device's basis, increases a combined floodgate shutting return circuit self-checking button for in the combined floodgate shutting return circuit of switch-on, the circuit breaker combined floodgate normally opens auxiliary node, is used for switching on combined floodgate shutting return circuit, inspects the reliability of combined floodgate shutting unblock function.
Further, the utility model provides a combined floodgate shutting self-checking state indicating device through installing a combined floodgate shutting electro-magnet travel switch additional, after combined floodgate shutting return circuit switch-on (pressing combined floodgate shutting self-checking button), combined floodgate shutting electro-magnet gets electric action, and the switch-on is located travel switch above that, closed instruction return circuit when putting through combined floodgate return circuit contact, and combined floodgate shutting self-checking pilot lamp is bright.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model provides a combined floodgate shutting self-checking state indicating device method can be effectively under the circuit breaker running state, inspects the integrity in combined floodgate shutting return circuit to guarantee the effective realization of reclosing lock function to a certain extent. The operation and maintenance personnel can realize the self-checking of the closing and locking loop of the circuit breaker through the button in the daily inspection process, and judge the integrity of the closing and locking and unlocking functions by lighting the self-checking indicator lamp, so that the operation stability and the power supply reliability of the transformer substation are improved.
(1) The utility model provides a pair of combined floodgate shutting self-checking state indicating device has filled 35 kilovolts of present transformer substation and following handcart circuit breaker running state under, and the blank of the self-checking function in circuit breaker combined floodgate shutting return circuit provides the guarantee for effectively realizing the auto-reclosing function.
(2) The utility model provides a pair of combined floodgate shutting self-checking state indicating device structure is simple and easy, instruct clearly and definitely, do not produce additional influence to original return circuit. The device design is simple, only need provide button switch, switches on circuit breaker auxiliary switch, starts circuit breaker combined floodgate shutting electro-magnet, installs a combined floodgate shutting electro-magnet travel switch and pilot lamp additional simultaneously, switches on the instruction return circuit.
(3) The utility model provides a pair of combined floodgate shutting self-checking state indicating device has economic nature, practicality concurrently. The whole device is good in economy, convenient to install and replace and clear in indicating lamp, and can effectively achieve self-checking of a closing locking and unlocking function of the circuit breaker.
Drawings
FIG. 1 is a schematic diagram of a self-test of a closing lockout device of a circuit breaker;
FIG. 2 is a panel of a closing lockout self-test status indicating device;
Detailed Description
The present invention will be described in detail with reference to the following specific examples.
The utility model discloses a combined floodgate shutting self-checking state indicating device is on traditional comprehensive state indicating device's basis, increases a combined floodgate shutting return circuit self-checking button for in the combined floodgate shutting return circuit of switch-on, the circuit breaker combined floodgate normally opens auxiliary node, is used for switching on combined floodgate shutting return circuit, inspects the reliability of combined floodgate shutting unblock function.
The utility model discloses a combined floodgate shutting self-checking state indicating device through installing a combined floodgate shutting electro-magnet travel switch additional, after combined floodgate shutting return circuit switch-on (pressing combined floodgate shutting self-checking button), combined floodgate shutting electro-magnet gets the electric action, and the switch-on is located the travel switch above that, closed indicating circuit in the time of the closed indicating circuit of combined floodgate return circuit contact of switch-on, combined floodgate shutting self-checking pilot lamp is bright.
Taking a 10 kv handcart type circuit breaker as an example, a pair of button contacts are additionally arranged on a panel of the comprehensive state indicator, and the contacts are connected in parallel with two ends of a normally-closed contact DL of a closing locking loop, as shown in fig. 1.
A closing locking and unlocking indicating lamp L is additionally arranged on a panel of the comprehensive state indicator, the lamp provides 55V alternating current power supply, and meanwhile, a pair of normally open contacts S1 are additionally arranged on the mechanical action stroke of a closing locking electromagnet of a circuit breaker handcart and are connected in series with a closing locking and unlocking indicating loop as shown in figures 1 and 2.
By pressing a 'closing locking and unlocking' button FA, a closing locking loop H1 is switched on, a closing locking electromagnet is electrified to act, a closing locking and unlocking indicating loop is switched on through a mechanical action stroke contact, and an operation and maintenance maintainer can realize the self-checking function of the closing locking loop in the operating state of the circuit breaker.
The comprehensive state indicator structure is suitable for the existing standard handcart switch cabinet.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The utility model provides a combined floodgate shutting self-checking state indicating device, sets up in standard handcart-type cubical switchboard which characterized in that: including state indication panel and with the former floodgate of standard handcart-type cubical switchboard block up a plurality of connecting circuit that self-checking circuit electricity is connected, specifically:
in a closing and locking loop of the circuit breaker, a manual button is led out from two ends of a closing normally-open auxiliary contact of the circuit breaker and connected with a panel of the comprehensive state indicating device in parallel;
the circuit breaker closing locking electromagnet stroke switch is additionally provided with a normally open contact which acts to close along with a closing loop contact when a closing locking electromagnet acts.
2. The closing lock self-test status indicating device according to claim 1, wherein: a normally open contact is additionally arranged on a travel switch of a closing latching electromagnet of the circuit breaker, two ends of the normally open contact are led out and then connected with a state indicating device, and when the closing latching electromagnet acts, a latching loop is indicated to be intact.
3. The closing lock self-test state indicating device according to claim 2, characterized in that: the state indicating device is an indicating lamp or a sounder which is connected in series in a loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739488.3U CN213815886U (en) | 2020-11-24 | 2020-11-24 | Closing locking self-checking state indicating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739488.3U CN213815886U (en) | 2020-11-24 | 2020-11-24 | Closing locking self-checking state indicating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213815886U true CN213815886U (en) | 2021-07-27 |
Family
ID=76937801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022739488.3U Active CN213815886U (en) | 2020-11-24 | 2020-11-24 | Closing locking self-checking state indicating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213815886U (en) |
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2020
- 2020-11-24 CN CN202022739488.3U patent/CN213815886U/en active Active
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