CN210326996U - Improved switch-on/off controller of circuit breaker - Google Patents

Improved switch-on/off controller of circuit breaker Download PDF

Info

Publication number
CN210326996U
CN210326996U CN201921685686.7U CN201921685686U CN210326996U CN 210326996 U CN210326996 U CN 210326996U CN 201921685686 U CN201921685686 U CN 201921685686U CN 210326996 U CN210326996 U CN 210326996U
Authority
CN
China
Prior art keywords
switching
module
controller
coil
separating brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201921685686.7U
Other languages
Chinese (zh)
Inventor
肖超云
黄明星
王伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taizhou Jingdao Power Engineering Co ltd
Original Assignee
Taizhou Jingdao Power Engineering Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Taizhou Jingdao Power Engineering Co ltd filed Critical Taizhou Jingdao Power Engineering Co ltd
Priority to CN201921685686.7U priority Critical patent/CN210326996U/en
Application granted granted Critical
Publication of CN210326996U publication Critical patent/CN210326996U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The improved circuit breaker switching-on/off controller comprises a controller shell and a circuit board, wherein an alternating current wiring terminal is arranged on the circuit board, the alternating current wiring terminal is connected with a five-prevention interlocking circuit, a remote transfer switch, a switching-on/switching-off transfer switch and a comprehensive protection device in series, the comprehensive protection device is connected with a switching-on module and a switching-off module, a switching-on normally-off point is connected between the switching-on module and the comprehensive protection device in series, a switching-on time relay is connected on the switching-on module in parallel, a switching-off normally-off point is connected between the switching-off module and the comprehensive protection device in series. The switching-on time relay and the switching-off time relay with the time delay disconnection contact are respectively connected in parallel on the switching-on module and the switching-off module, so that the switching-off module and the switching-off module can be timely and accurately disconnected no matter under normal conditions or mechanical fault conditions of the circuit breaker, a switching-off coil and a switching-on coil are effectively protected, the condition that the switching-off coil and the switching-on coil are burnt out due to long-term electrification is avoided, and the power supply reliability of equipment is further improved.

Description

Improved switch-on/off controller of circuit breaker
Technical Field
The utility model relates to a high tension switchgear circuit breaker control field, concretely relates to modified circuit breaker on-off controller.
Background
The circuit breaker switching coil is also called switching electromagnet, and is an important element in an electric control loop. The condition that the switching-on and switching-off coil burns out often can appear in the cubical switchboard use, and switching-on and switching-off coil can only be circular telegram for a short time, and the long-time electrification of coil is the main reason that the coil burns out. The existing circuit breaker control circuit principle analysis finds that the existing control circuit has certain defects. The closing loop is to cut off the closing control power supply through an auxiliary contact QF of the circuit breaker or a normally closed contact of a closing holding relay in the protection device, if the circuit breaker fails to close or the auxiliary contact of the circuit breaker is stuck, the closing control loop cannot be normally cut off, so that the closing loop is electrified for a long time, and a closing coil is burnt. Similarly, if the brake-separating failure or the blocking of the auxiliary contact QF of the circuit breaker occurs in the brake-separating loop, the brake-separating loop cannot be normally disconnected, which may cause the burning of the brake-separating coil.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an improved switch-on/off controller of a circuit breaker aiming at the defects of the prior art, which comprises a controller shell, and a circuit board in the controller shell, wherein an alternating current wiring terminal is arranged on the circuit board, and the alternating current wiring terminal is connected in series with a five-prevention interlocking circuit, a remote change-over switch, a closing/opening change-over switch and a comprehensive protection device, the comprehensive protection device is connected with a closing module and an opening module, a closing normally-closed point is connected between the closing module and the comprehensive protection device in series, the closing module is connected with a closing time relay in parallel, the closing module comprises an aviation socket, an auxiliary switch normally closed contact and a closing coil, the brake separating module is connected with a brake separating normally-closed point in series between the brake separating module and the comprehensive protection device, a brake separating time relay is connected to the brake separating module in parallel, and the brake separating module comprises an aviation socket, a brake separating signal lamp circuit and a brake separating coil.
The controller shell is a plastic shell.
The circuit board is a PCB board.
The circuit board is provided with a main switch.
The utility model has the advantages that: the breaker switching-on and switching-off controller with the compact structure is provided, the switching-on time relay and the switching-off time relay with the time delay switching-off contact are respectively connected with the switching-on module and the switching-off module in parallel, the switching-on module and the switching-off module can be timely and accurately switched off no matter under normal conditions or mechanical fault conditions of the breaker, the switching-off coil and the switching-on coil are effectively protected, the situation that the switching-off coil and the switching-on coil are burnt out due to long-term electrification is avoided, and the power supply reliability of equipment is further improved.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1, as shown: an improved on-off controller of a circuit breaker comprises a controller shell and a circuit board in the controller shell, the circuit board is provided with an alternating current wiring terminal which is connected in series with a five-prevention interlocking circuit 1, a remote change-over switch 2, a closing/opening change-over switch 3 and a comprehensive protection device 4, the comprehensive protection device 4 is connected with a closing module and an opening module, a closing normally-closed point 10 is connected between the closing module and the comprehensive protection device 4 in series, the closing module is connected with a closing time relay 9 in parallel, the closing module comprises an aviation socket 5, an auxiliary switch normally closed contact 6 and a closing coil 7, and an opening normally-closed point 12 is connected between the opening module and the comprehensive protection device 4 in series, an opening time relay 11 is connected on the opening module in parallel, and the opening module comprises an aviation socket 5, an opening signal lamp circuit and an opening coil 8.
The controller shell is a plastic shell.
The circuit board is a PCB board.
The circuit board is provided with a main switch.
When the closing operation is carried out, a positive power supply is connected to a comprehensive protection device 4 through a five-prevention interlocking circuit 1, a remote transfer switch 2 (QK 1) and a closing/opening transfer switch 3 (QK 2) to be connected with a 601 terminal, a closing time relay is started, the positive power supply is opened at a 606 terminal, and a closing normally-closed point 10 (KT1), an aviation plug 5 (CZ:4) and a breaker auxiliary switch normally-closed point 6 (QF) are delayed and disconnected through the closing time relay 9 to reach a closing coil 7 (HQ); the negative power supply is connected to a closing coil 7(HQ) through an aviation plug 5 (CZ:14) and a rectifier bridge, the closing coil 7 is started, and the breaker is closed.
The other end of the closing loop time relay 9 (KT1) is directly connected with negative electricity, when the positive power supply reaches the time delay disconnection contact, the closing normally-closed point 10 acts, and when the setting time is reached, the time delay disconnection contact is disconnected, and the positive power supply is cut off. Under normal conditions, when the breaker is successfully closed, the auxiliary switch normally-closed contact 6 (QF) is disconnected, and the positive power supply is cut off. When the situation that the circuit breaker mechanical fault causes closing refusing or the contact 6 of the auxiliary switch cannot be disconnected in time and the like occurs, the positive power supply is disconnected in a delayed mode through the contact of the closing loop time relay 9, and therefore the closing coil 7 is prevented from being burnt out due to long-time electrification.
Similarly, when the opening operation is performed, when the situation that the opening is refused due to the mechanical fault of the circuit breaker or the normally closed contact of the auxiliary switch cannot be opened timely occurs, the positive power supply is cut off in a delayed way by the contact of the opening loop time relay 11, so that the opening coil 8 is prevented from being burnt out due to the long-time electrification of the opening coil 8.
The setting time of the closing loop time relay 9 and the opening time relay 11 is slightly longer than the action time of the circuit breaker, and the specific setting value needs to be specially tested and determined within the bearing range of the closing coil 7 and the opening coil 8.
The improved switching-on/off control loop can be timely and accurately disconnected, the switching-on coil 7 and the switching-off coil 8 of the circuit breaker are effectively protected, the running faults of equipment are reduced, and the reliability of safe power supply of the equipment is improved.
Finally, the embodiments were chosen and described in order to best explain the principles of the invention and the patent disclosure, and are not intended to be limited to the details shown. Modifications and equivalents of the embodiments of the invention may be made by those skilled in the art without departing from the spirit and scope of the invention, and are intended to be covered by the appended claims.

Claims (4)

1. The utility model provides an improved circuit breaker on-off controller, includes controller casing to and the circuit board in the controller casing, its characterized in that: the circuit board on be equipped with AC binding post, AC binding post establish ties five prevent interlock circuit, distant place change over switch, close/separating brake change over switch and comprehensive guarantor device, comprehensive guarantor device connect combined floodgate module and separating brake module, combined floodgate module and comprehensive guarantor device between establish ties combined floodgate normally closed point, combined floodgate module on parallelly connected combined floodgate time relay, combined floodgate module includes aviation socket, auxiliary switch normally closed contact and closing coil, separating brake module and comprehensive guarantor device between establish ties separating brake normally closed point, separating brake module on parallelly connected separating brake time relay, separating brake module includes aviation socket, separating brake signal lamp circuit and separating brake coil.
2. The improved circuit breaker on-off controller of claim 1, wherein: the controller shell is a plastic shell.
3. The improved circuit breaker on-off controller of claim 1, wherein: the circuit board is a PCB board.
4. The improved circuit breaker on-off controller of claim 1, wherein: the circuit board is provided with a main switch.
CN201921685686.7U 2019-10-10 2019-10-10 Improved switch-on/off controller of circuit breaker Active CN210326996U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921685686.7U CN210326996U (en) 2019-10-10 2019-10-10 Improved switch-on/off controller of circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921685686.7U CN210326996U (en) 2019-10-10 2019-10-10 Improved switch-on/off controller of circuit breaker

Publications (1)

Publication Number Publication Date
CN210326996U true CN210326996U (en) 2020-04-14

Family

ID=70133587

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921685686.7U Active CN210326996U (en) 2019-10-10 2019-10-10 Improved switch-on/off controller of circuit breaker

Country Status (1)

Country Link
CN (1) CN210326996U (en)

Similar Documents

Publication Publication Date Title
US8213133B2 (en) Load breaker arrangement
US20080179958A1 (en) Automatic Transfer Switch With Monitor Mode and Method Employing the Same
CN201360082Y (en) Power failure automatic protective socket
CN101980351B (en) Rocker-type single-wire double-connection double-insurance switch
CN107192912A (en) Distribution box failure detector circuit
CN210326996U (en) Improved switch-on/off controller of circuit breaker
CN203352192U (en) Direct current switch device
CN202721438U (en) Circuit breaker coil protector
CN203607351U (en) A low-voltage circuit breaker automatic closing apparatus
CN209881379U (en) Control loop of electric isolating switch
CN210092862U (en) Temperature detection device capable of automatically cutting off control loop and circuit breaker
CN101425433B (en) Circuit breaker having secondary protection function
CN102779612A (en) Pre-magnetizing device for main power supply transformer of electric power circuit
CN207442421U (en) A kind of microcomputer protecting device
CN102324347A (en) Load control device of intelligent socket
CN208046205U (en) It is a kind of with integrated protection for electric installation
CN205901702U (en) Solid -state switch circuit of high voltage direct current double - circuit interlocking
CN103531408B (en) Low-voltage circuit breaker automatic switching-on device and the method for automatic closing after no-voltage trip thereof
CN101866787B (en) Circuit interrupter with delayed function
CN103647255A (en) Improved FC switch control loop
CN106655898A (en) Electric reactor cabinet control circuit
CN203813426U (en) Tripping protector for circuit breaker
CN203301120U (en) Burnt-up proof automatic protection device for high voltage circuit breaker opening and closing coil
CN201733137U (en) Ring network power supply control device based on mobile communication network technology
CN213367413U (en) Electrical control structure

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant