Circuit breaker control loop disconnection on-line monitoring device

Abstract

The utility model discloses a breaker control loop disconnection on-line monitoring device comprising a monitoring plate, one side of the monitoring plate is fixedly provided with a switching-on monitoring mechanism, the other side of the monitoring plate is fixedly provided with a switching-off monitoring mechanism, one end of the monitoring plate is fixedly provided with a device panel, the switching-on monitoring mechanism comprises a first connecting plate and a first terminal strip, and the switching-off monitoring mechanism comprises a second connecting plate and a second terminal strip. One side of the first connecting plate is fixedly connected with one side of the first terminal strip, and the top end of the first terminal strip is fixedly provided with a first display panel. According to the breaker control loop disconnection on-line monitoring device, the closing monitoring mechanism and the opening monitoring mechanism are arranged, so that an opening loop of a breaker is monitored in real time; various factors influencing opening and closing of the circuit breaker can be conveniently monitored in real time in the equipment operation process, if similar problems exist in operation, corresponding processing and judgment can be made in advance, various risks existing in production operation are reduced, the equipment operation efficiency is improved, and the equipment operation safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of power system monitoring, in particular to an online monitoring device for disconnection of a circuit breaker control loop. Background Art

[0002] The circuit breaker control circuit is an important part of the power system. It can cut off the fault point in time when a power system fault occurs to protect equipment and personal safety. However, due to various reasons, the control circuit may be disconnected. The most direct harm of the control circuit disconnection is that the switch cannot be opened and closed normally. The control circuit disconnection during opening indicates that the closing circuit is abnormal and the switch cannot be closed. The control circuit disconnection during closing indicates that the opening circuit is abnormal and the switch cannot be opened normally. Before the existing circuit breaker equipment is put into operation, people will conduct switch characteristic tests and circuit resistance tests on the circuit breaker body during testing. In this process, the test personnel will detect the circuit breaker body. During the test, there will be opening and closing test operations on the circuit breaker to check the circuit breaker performance.

[0003] However, traditional circuit breaker equipment operation monitoring has the following disadvantages:

[0004] There are many related factors that affect the opening and closing operations of the circuit breaker, such as: whether the control power supply is powered, whether the trolley body is in place, whether the energy storage motor power supply is powered, whether the spring is storing energy, whether the SF6 pressure is reduced and locked, whether the switch mechanism is locked, and whether other switch cabinets are locked and connected; in this process, the commissioning personnel will check all the issues involved one by one, and this process will affect the commissioning progress of the on-site equipment. Every time the circuit breaker is opened and closed, the relevant circuits will be checked, and we will waste a lot of time in this process; when the booster station equipment is energized, once there is a fault report of a control circuit disconnection, it will directly affect our switch from opening and closing normally. When opening, the control circuit disconnection indicates that the closing circuit is abnormal and the switch cannot be closed. When closing, the control circuit disconnection indicates that the opening circuit is abnormal and the switch cannot be opened normally. It directly affects the normal operation of our power system. Utility Model Content

[0005] The purpose of the utility model is to provide an online monitoring device for disconnection of a circuit breaker control circuit, so as to solve the problems mentioned in the above background technology that there are many related factors affecting the opening and closing operation of the circuit breaker, such as: whether the control power supply has electricity, whether the trolley body is in place, whether the energy storage motor power supply has electricity, whether the spring stores energy, whether the SF6 pressure is reduced and locked, whether the switch mechanism is locked, and whether other switch cabinets are locked and connected; in this process, the commissioning personnel will check all the problems involved one by one, and this process will affect the commissioning progress of the on-site equipment. Each time the circuit breaker is opened and closed, the relevant circuits will be checked, and we will waste a lot of time in this process; when the booster station equipment is energized, once there is a fault report of a control circuit disconnection, it will directly affect our switch from opening and closing normally. When opening, the control circuit disconnection indicates that the closing circuit is abnormal, and the switch cannot be closed. When closing, the control circuit disconnection indicates that the opening circuit is abnormal, and the switch cannot be opened normally. The problem of directly affecting the normal operation of our power system.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an online monitoring device for disconnection of a circuit breaker control circuit, comprising a monitoring board, a closing monitoring mechanism is fixedly installed on one side of the monitoring board, a breaking monitoring mechanism is fixedly installed on the other side of the monitoring board, a device panel is fixedly installed on one end of the monitoring board, the closing monitoring mechanism comprises a first connecting board and a first terminal row, one side of the first connecting board is fixedly connected to one side of the first terminal row, a first display panel is fixedly installed on the top of the first terminal row, a first delay relay is fixedly installed on the top of the front of the first connecting board, and a first contactor is fixedly installed on the bottom of the front of the first connecting board. A first wiring board is fixedly installed in the middle of the front of the first connecting plate, the opening monitoring mechanism includes a second connecting plate and a second terminal block, one side of the second connecting plate is fixedly connected to one side of the second terminal block, a second delay relay is fixedly installed at the top of the front of the second connecting plate, a second contactor is fixedly installed at the bottom of the front of the second connecting plate, a second wiring board is fixedly installed in the middle of the front of the second connecting plate, and a second display panel is fixedly installed at the top of the second connecting plate. During the operation of the equipment, the online monitoring device for disconnection of the circuit breaker control circuit converts the opening and closing points of all factors affecting the opening and closing of the circuit breaker into electrical signals through the contactor and connects them to this device.

[0007] Preferably, the side of the first terminal row away from the first connecting plate is equipped with a control power closing terminal, a trolley body position closing terminal, an energy storage switch power closing terminal, a spring energy stored closing terminal, an SF6 pressure locking closing terminal, a switch mechanical locking closing terminal, other switch cabinet related locking closing terminals and a spare closing terminal in sequence from top to bottom.

[0008] Preferably, a first green indicator light is fixedly installed on one end of one side of the first display panel, and a first red indicator light is fixedly installed on the other end of one side of the first display panel. The device directly connects the control power supply of the circuit breaker opening and closing circuit, and determines whether the circuit breaker meets the opening and closing conditions by analyzing various electrical signals.

[0009] Preferably, the first connecting plate is fixedly connected to the monitoring plate at one side away from the first terminal row, and the closing monitoring mechanism is mounted on the monitoring plate via the first connecting plate.

[0010] Preferably, the side of the second terminal row away from the second connecting plate is installed with other switch cabinet related locking and disconnecting terminals, switch mechanical locking and disconnecting terminals, the second set of protection device outlet disconnecting terminals, the first set of protection device outlet disconnecting terminals, switch disconnecting non-universal disconnecting terminals, SF6 pressure locking and disconnecting terminals, trolley body position disconnecting terminals and control power disconnecting terminals in sequence from bottom to top.

[0011] Preferably, a second green indicator light is fixedly installed at one end of one side of the second display panel, a second red indicator light is fixedly installed at the other end of one side of the second display panel, and the side of the second connecting plate away from the second terminal row is fixedly connected to the monitoring board. If the red lights on the second red indicator light at the opening gate of the second display board are all on, and the device panel reports "Normal: Control circuit is online", the opening and closing operations can be carried out smoothly; if the red lights of the second red indicator light at the opening gate of the second display board are not all on, and the green light of the second green indicator light is on, the device panel reports "Abnormal: Control circuit is broken", the circuit breaker cannot be opened and closed, and the device promptly reports the specific location that affects the control circuit break.

[0012] Preferably, a signal transceiver is fixedly installed on the top of the monitoring board, and the signal transceiver transmits the information monitored by the monitoring board to the background in real time.

[0013] Compared with the prior art, the beneficial effects of the utility model are: by setting up a closing monitoring mechanism and an opening monitoring mechanism, the opening circuit of the circuit breaker is monitored in real time, which facilitates real-time monitoring of various factors affecting the opening and closing of the circuit breaker during the operation of the equipment. If similar problems exist in the operation, corresponding processing and judgment can be made in advance, thereby reducing various risks in production operation, improving equipment operation efficiency, and ensuring equipment operation safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view of the utility model;

[0015] Figure 2 It is a side view of the closing monitoring mechanism of the utility model;

[0016] Figure 3 It is a side view of the gate opening monitoring mechanism of the utility model.

[0017] In the figure: 1. Monitoring board; 2. Closing monitoring mechanism; 201. First connecting board; 202. First contactor; 203. First wiring board; 204. First time delay relay; 205. First display board; 206. First green indicator light; 207. First red indicator light; 208. First terminal block; 209. Control power closing terminal; 210. Trolley body position closing terminal; 211. Energy storage switch power closing terminal; 212. Spring energy storage closing terminal; 213. SF6 pressure locking closing terminal; 214. Switch mechanical locking closing terminal; 215. Other switch cabinet related locking closing terminals; 216. Spare closing terminal; 3. Device panel; 4. Signal transceiver; 5. Disconnection monitoring mechanism; 501. Second connection board; 502. Second time delay relay; 503. Second wiring board; 504. Second contactor; 505. Second terminal block; 506. Other switch cabinet phase locking and disconnecting terminals; 507. Switch mechanical locking and disconnecting terminals; 508. Second set of protection device outlet disconnecting terminals; 509. First set of protection device outlet disconnecting terminals; 510. Switch disconnecting non-universal disconnecting terminals; 511. SF6 pressure locking and disconnecting terminals; 512. Trolley body position disconnecting terminals; 513. Control power disconnecting terminals; 514. Second green indicator light; 515. Second display board; 516. Second red indicator light. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-3The utility model provides an online monitoring device for disconnection of a circuit breaker control circuit, comprising a monitoring board 1, a closing monitoring mechanism 2 is fixedly installed on one side of the monitoring board 1, a breaking monitoring mechanism 5 is fixedly installed on the other side of the monitoring board 1, a device panel 3 is fixedly installed on one end of the monitoring board 1, the closing monitoring mechanism 2 comprises a first connecting plate 201 and a first terminal row 208, one side of the first connecting plate 201 is fixedly connected to one side of the first terminal row 208, a first display panel 205 is fixedly installed on the top of the first terminal row 208, a first delay relay 204 is fixedly installed on the top of the front of the first connecting plate 201, a first contactor 202 is fixedly installed on the bottom of the front of the first connecting plate 201, and a first contactor 202 is fixedly installed on the front of the first connecting plate 201. A first terminal block 203 is fixedly installed in the middle, the opening monitoring mechanism 5 includes a second connecting plate 501 and a second terminal block 505, one side of the second connecting plate 501 is fixedly connected to one side of the second terminal block 505, a second delay relay 502 is fixedly installed on the top of the front side of the second connecting plate 501, a second contactor 504 is fixedly installed on the bottom of the front side of the second connecting plate 501, a second terminal block 503 is fixedly installed in the middle of the front side of the second connecting plate 501, and a second display panel 515 is fixedly installed on the top of the second connecting plate 501. During the operation of the equipment, the online monitoring device for disconnection of the circuit breaker control circuit converts the opening and closing points of all factors affecting the opening and closing of the circuit breaker into electrical signals through the contactor and connects them to this device.

[0020] On one side of the first terminal row 208 away from the first connecting plate 201, there are installed, from top to bottom, in sequence, a control power closing terminal 209, a trolley body position closing terminal 210, an energy storage switch power closing terminal 211, a spring energy stored closing terminal 212, a SF6 pressure locking closing terminal 213, a switch mechanical locking closing terminal 214, other switch cabinet related locking closing terminals 215 and a spare closing terminal 216.

[0021] A first green indicator light 206 is fixedly installed at one end of the first display panel 205, and a first red indicator light 207 is fixedly installed at the other end of the first display panel 205. The device directly connects the control power supply of the circuit breaker opening and closing circuit, and determines whether the circuit breaker has the conditions for opening and closing by analyzing various electrical signals.

[0022] A side of the first connection plate 201 away from the first terminal block 208 is fixedly connected to the monitoring board 1 , and the closing monitoring mechanism 2 is installed on the monitoring board 1 through the first connection plate 201 .

[0023] The side of the second terminal block 505 away from the second connecting plate 501 is installed with other switch cabinet related locking and disconnecting terminals 506, the switch mechanical locking and disconnecting terminal 507, the second set of protection device outlet disconnecting terminal 508, the first set of protection device outlet disconnecting terminal 509, the switch disconnecting non-universal disconnecting terminal 510, the SF6 pressure locking and disconnecting terminal 511, the trolley body position disconnecting terminal 512 and the control power supply disconnecting terminal 513 in sequence from bottom to top.

[0024] A second green indicator light 514 is fixedly installed at one end of one side of the second display board 515, and a second red indicator light 516 is fixedly installed at the other end of one side of the second display board 515. The side of the second connecting board 501 away from the second terminal row 505 is fixedly connected to the monitoring board 1. If the red lights on the second red indicator light 516 at the opening gate of the second display board 515 are all on, the device panel 3 reports "Normal: Control circuit is online", and the opening and closing operations can be carried out smoothly; if the red lights of the second red indicator light 516 at the opening gate of the second display board 515 are not all on, and the green light of the second green indicator light 514 is on, the device panel 3 reports "Abnormal: Control circuit is disconnected", then the circuit breaker cannot be opened and closed, and the device promptly reports the specific location that affects the control circuit disconnection.

[0025] A signal transceiver 4 is fixedly installed on the top of the monitoring board 1, and the signal transceiver 4 transmits the information monitored by the monitoring board 1 to the background in real time.

[0026] When the embodiment of the present application is in use: During the operation of the equipment, the online monitoring device for disconnection of the circuit breaker control circuit converts the opening and closing points of all factors affecting the opening and closing of the circuit breaker into electrical signals through the contactor and connects them to the device; if the red lights on the second red indicator light 516 at the opening gate of the second display board 515 are all on, the device panel 3 reports "Normal: Control circuit is online", and the opening and closing operations can be carried out smoothly; if the red lights of the second red indicator light 516 at the opening gate of the second display board 515 are not all on, and the green light of the second green indicator light 514 is on, the device panel 3 reports "Abnormal: Control circuit is disconnected", and the circuit breaker cannot be opened and closed, and the device promptly reports the specific location of the control circuit disconnection, and the signal transceiver 4 transmits the information monitored by the monitoring board 1 to the background in real time.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circuit breaker control circuit disconnection online monitoring device, comprising a monitoring board (1), characterized in that: A closing monitoring mechanism (2) is fixedly mounted on one side of the monitoring board (1), a closing monitoring mechanism (5) is fixedly mounted on the other side of the monitoring board (1), a device panel (3) is fixedly mounted on one end of the monitoring board (1), the closing monitoring mechanism (2) comprises a first connecting plate (201) and a first terminal block (208), one side of the first connecting plate (201) is fixedly connected to one side of the first terminal block (208), a first display panel (205) is fixedly mounted on the top of the first terminal block (208), a first time delay relay (204) is fixedly mounted on the top of the front of the first connecting plate (201), and a first contactor is fixedly mounted on the bottom of the front of the first connecting plate (201). (202), a first wiring board (203) is fixedly installed in the middle of the front of the first connecting plate (201), the opening monitoring mechanism (5) comprises a second connecting plate (501) and a second terminal block (505), one side of the second connecting plate (501) is fixedly connected to one side of the second terminal block (505), a second time delay relay (502) is fixedly installed at the top of the front of the second connecting plate (501), a second contactor (504) is fixedly installed at the bottom of the front of the second connecting plate (501), a second wiring board (503) is fixedly installed in the middle of the front of the second connecting plate (501), and a second display panel (515) is fixedly installed at the top of the second connecting plate (501).

2. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: A control power closing terminal (209), a trolley body position closing terminal (210), an energy storage switch power closing terminal (211), a spring energy storage closing terminal (212), an SF6 pressure locking closing terminal (213), a switch mechanical locking closing terminal (214), other switch cabinet related locking closing terminals (215) and a spare closing terminal (216) are installed in sequence from top to bottom on the side of the first terminal row (208) away from the first connection plate (201).

3. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: A first green indicator light (206) is fixedly mounted on one end of one side of the first display panel (205), and a first red indicator light (207) is fixedly mounted on the other end of one side of the first display panel (205).

4. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: The side of the first connection plate (201) away from the first terminal row (208) is fixedly connected to the monitoring plate (1).

5. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: The second terminal block (505) is provided with, from bottom to top, on a side away from the second connecting plate (501), other switch cabinet related locking and disconnecting terminals (506), a switch mechanical locking and disconnecting terminal (507), a second set of protection device outlet disconnecting terminals (508), a first set of protection device outlet disconnecting terminals (509), a switch disconnecting non-universal disconnecting terminal (510), an SF6 pressure locking and disconnecting terminal (511), a trolley body position disconnecting terminal (512), and a control power disconnecting terminal (513).

6. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: A second green indicator light (514) is fixedly mounted on one end of one side of the second display panel (515), a second red indicator light (516) is fixedly mounted on the other end of one side of the second display panel (515), and a side of the second connection panel (501) away from the second terminal block (505) is fixedly connected to the monitoring panel (1).

7. The circuit breaker control circuit disconnection online monitoring device according to claim 1, characterized in that: A signal transceiver (4) is fixedly mounted on the top of the monitoring board (1).

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