CN108550506A - A kind of 10kV breaker of switch cabinet remote control trip gear - Google Patents

Abstract

The invention provides a remote control tripping device for a 10kV switch cabinet circuit breaker, which includes a device main body and a remote controller. The main body of the device includes a base, an electromagnetic coil, a controller, a connector and an operating rod; the electromagnetic coil is arranged inside the base, the connector and the controller are arranged outside the base, and the controller and the electromagnetic coil Electrical connection, one end of the connector is connected to the base, and the other end is connected to the switch cabinet; the base is also provided with a through hole, and the through hole is set at a position corresponding to the center of the electromagnetic coil; the operating rod is pierced In the electromagnetic coil, its head end is exposed inside the base through the electromagnetic coil, and its tail end is exposed outside the base through a through hole on the base; an elastic member is also provided between the operating rod and the base; An antenna is arranged on the controller, and a control circuit board and a power supply are arranged inside the controller. The remote controller is provided with a keyboard, a display screen, control buttons and an antenna, and a control circuit board and a power supply are arranged inside the remote controller.

Description

A 10kV switch cabinet circuit breaker remote tripping device

technical field

The invention belongs to the field of transformer substation maintenance tools, in particular to a remote-controlled tripping device for a 10kV switch cabinet circuit breaker.

Background technique

At present, for the consideration of personnel safety, the 10kV switchgear circuit breaker in the substation can only be operated by remote control in the non-maintenance state according to the regulations. When the circuit breaker has a secondary fault such as a control circuit disconnection or a fault in the protection measurement and control device, the circuit breaker cannot be remotely opened. When the upper-level circuit breaker is disconnected, that is, the busbar where it is located will be shut down, and other lines on the busbar will also be forced to shut down. Since most of the users of the 10kV distribution network are factories or residential areas, temporary power outages will cause great harm to the production and life of users. Impact. In fact, due to the above situation, the function of the circuit breaker itself is intact, and the fault handling can be completed through the mechanical tripping of the operating mechanism to complete the opening operation. However, since the mechanical tripping button is installed at the switch cabinet mechanism, direct operation will pose a threat to personal safety. , and because the trip button of the 10kV switchgear circuit breaker in the substation is not designed with an anti-misoperation device, and there is no technical measure to authorize the operation, it is very easy for a single person to operate illegally without supervision. Therefore, it is necessary to design a 10kV circuit breaker remote tripping device, which can trip and open the circuit breaker when the 10kV switchgear circuit breaker is in good condition and the remote control fails.

Contents of the invention

The invention provides a 10kV switch cabinet circuit breaker remote control tripping device, which solves the need to disconnect the upper circuit breaker when a secondary fault occurs in the 10kV switch cabinet circuit breaker in the substation, such as a control circuit disconnection or a failure of the protection measurement and control device. Cause other lines to be forced to shut down the problem. In order to solve the above problems, the present invention provides the following technical solutions:

A remote control tripping device for a 10kV switch cabinet circuit breaker, comprising a device main body and a remote controller.

The device main body includes a base, an electromagnetic coil, a controller, a connector and an operating rod; the electromagnetic coil is arranged inside the base, the connector and the controller are arranged outside the base, and the controller and the electromagnetic coil Electrically connected, one end of the connector is connected to the base, and the other end is connected to the switch cabinet; the base is also provided with a through hole, and the through hole is set at a position corresponding to the center of the electromagnetic coil; the operating rod is pierced In the electromagnetic coil, its head end is exposed inside the base through the electromagnetic coil, and its tail end is exposed outside the base through a through hole on the base; an elastic member is also provided between the operating rod and the base;

Preferably, the controller is provided with an antenna, and a control circuit board and a power supply are provided inside the controller. The remote controller is provided with a keyboard, a display screen, control buttons and an antenna, and a control circuit board and a power supply are arranged inside the remote controller. When working, enter the authorization password on the keyboard of the remote control. When the password is correct, the authorization is obtained, and then press the control button. According to the principle of linear motor, the operating rod can be moved in a straight line after the electromagnetic coil is energized, thereby realizing the tripping of the 10kV switch cabinet circuit breaker. button operation.

Preferably, the connecting piece is rotatably connected to the base, so that the present invention can be adapted to different switch cabinets.

Further, the connecting piece includes three connecting plates, the connecting plates are sequentially connected through the rotating shaft, one end of the connecting piece is connected to the base through the rotating shaft, and the other end is provided with a fixed foot, and the rotating shaft is a locking function. The shaft can adjust the position of the present invention under the condition that the operating rod of the present invention is always perpendicular to the switch cabinet, so as to match the positions of the trip buttons of different switch cabinets.

Further, there are multiple connecting pieces, which can stably fix the present invention on the switch cabinet.

Preferably, the elastic member is a return spring, and the return spring can automatically reset the actuated operating lever after the electromagnetic coil is de-energized, and the structure is simple and cheap.

Preferably, the first end of the operating rod is provided with a rubber head, which can be used to buffer the impact of the operating rod on the trip button.

Preferably, a stroke adjustment knob is provided at the tail end of the operating rod, which is connected with the operating rod through a threaded structure, and the return spring is arranged between the stroke adjusting knob and the base. The stroke adjustment knob can be fine-tuned for different strokes (depth) of different trip buttons by adjusting the effective length of the operating rod.

Preferably, the fixed feet are magnetic fixed feet, and a layer of NdFeB strong magnetic material is arranged inside the fixed feet, which can be adsorbed on the metal surface of the switch cabinet. According to actual needs, the magnetic fixing feet can be replaced with suction cup-type fixing feet, bolt-type fixing feet, and clamping-type fixing feet.

Compared with the prior art, the present invention has the following beneficial effects:

The invention can remotely open the circuit breaker when the secondary fault occurs in the circuit breaker of the 10kV switch cabinet in the substation, without disconnecting the upper level circuit breaker, that is, to perform power-off operation on the bus where it is located, ensuring the normal operation of other lines on the bus The operation ensures the normal production and living electricity of the user; the invention has the authorization function, and the tripping operation of the circuit breaker needs to be operated only after the password is correct, so as to avoid single-person illegal operations.

Description of drawings

Fig. 1 is the structural representation of device main body of the present invention;

Fig. 2 is a structural schematic diagram of the remote controller of the present invention;

In the figure: 1-base; 2-electromagnetic coil; 3-controller; 4-connecting piece; 5-operating rod; 6-elastic piece; 7-connecting plate; 8-rotating shaft; 11-travel adjustment knob; 12-keyboard; 13-display screen; 14-control button; 15-antenna.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that: the accompanying drawings are only for exemplary illustrations and cannot be interpreted as limitations on this patent; in order to better illustrate this embodiment, some parts of the accompanying drawings will be omitted and enlarged Or reduced, does not represent the size of the actual product; For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

Referring to Fig. 1, a 10kV switchgear circuit breaker tripping device includes a device main body and a remote controller.

The main body of the device includes a base 1, an electromagnetic coil 2, a controller 3, a connector 4 and an operating rod 5; the electromagnetic coil 2 is arranged inside the base 1, and the controller 3 and the connector 4 are arranged on the base 1 outside, the controller 3 is electrically connected to the electromagnetic coil 2, one end of the connector 4 is connected to the base 1, and the other end is connected to the switch cabinet; the base 1 is also provided with a through hole (not shown in the figure) , the through hole is set at a position corresponding to the center of the electromagnetic coil 2; the operating rod 5 is penetrated in the electromagnetic coil 2, its head end passes through the electromagnetic coil 2 and is exposed inside the base 1, and its tail end passes through the The through hole on the base 1 is exposed outside the base 1 ; an elastic member 6 is also provided between the operating rod 5 and the base 1 .

Specifically, the controller 3 is provided with an antenna 15 , and a control circuit board (not shown in the figure) and a power supply (not shown in the figure) are arranged inside the controller 3 . Referring to FIG. 2 , the remote controller is provided with a keyboard 12 , a display screen 13 , control buttons 14 and an antenna 15 , and a control circuit board (not shown) and a power supply (not shown) are arranged inside the remote controller.

When working, input the authorization password on the remote controller keyboard 12. When the password is correct, the display screen 13 will display the authorization, and then press the control button 14. According to the principle of the linear motor, the linear motion of the operating rod 5 can be made after the electromagnetic coil 2 is energized. , so as to realize the operation of the trip button of the 10kV switchgear circuit breaker.

Specifically, the connecting member 4 is rotatably connected to the base 1, so that this embodiment can be adapted to different switch cabinets.

Specifically, the connecting piece 4 includes three connecting plates 7, the connecting plates 7 are sequentially connected through the rotating shaft 8, one end of the connecting piece 4 is connected with the base 1 through the rotating shaft 8, and the other end is provided with a fixed foot 9, so The rotating shaft 8 is a shaft with a locking function, and the position of this embodiment can be adjusted while ensuring that the operating rod 5 of this embodiment is always perpendicular to the switch cabinet, so as to match the position of the trip button of different switch cabinets. Specifically, the connecting plate 7 is made of aluminum alloy, and the material can be replaced with other light and strong materials as required.

Specifically, there are two connectors 4, and multiple connectors can be provided as required, and this embodiment can be stably fixed on the switch cabinet.

Specifically, the elastic member 6 is a return spring, and the return spring can automatically reset the operated operating rod 5 after the electromagnetic coil 2 is de-energized, and has a simple structure and is cheap and easy to obtain.

Specifically, the first end of the operating rod 5 is provided with a rubber head 10, which can be used to buffer the impact of the operating rod 5 on the trip button.

Specifically, a stroke adjustment knob 11 is provided at the tail end of the operation rod 5 , which is connected to the operation rod 5 through a threaded structure, and the return spring is arranged between the stroke adjustment knob 11 and the base 1 . The stroke adjustment knob 11 can be fine-tuned for different strokes (depth) of different trip buttons by adjusting the effective length of the operating rod 5 .

Specifically, the fixing feet 9 are magnetic fixing feet, and the fixing feet 9 are provided with a NdFeB strong magnetic material layer inside, which can be adsorbed on the metal surface of the switch cabinet. According to actual needs, the magnetic fixing feet can be replaced with suction cup-type fixing feet, bolt-type fixing feet, and clamping-type fixing feet.

This embodiment can remotely open the circuit breaker when the secondary fault occurs in the 10kV switchgear circuit breaker in the substation, without disconnecting the upper-level circuit breaker, that is, to perform power-off operation on the bus where it is located, ensuring the safety of other lines on the bus. Normal operation ensures the user's normal production and living electricity; this embodiment has the use authorization function, and the tripping operation of the circuit breaker can only be operated after entering the correct password to avoid single-person illegal operations.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. a 10kV switchgear circuit breaker remote control tripping device, is characterized in that, comprises device main body and remote controller; Described device main body comprises base, electromagnetic coil, controller, connector and operating lever; Described electromagnetic coil is set On the inner side of the base, the connector and the controller are arranged outside the base, the controller is electrically connected to the electromagnetic coil, one end of the connector is connected to the base, and the other end is connected to the switch cabinet; There is a through hole, and the through hole is arranged at a position corresponding to the center of the electromagnetic coil; The operating rod is passed through the electromagnetic coil, its head end is exposed inside the base through the electromagnetic coil, and its tail end is exposed outside the base through the through hole on the base; between the operating rod and the base An elastic member is also provided. 2. The 10kV switchgear circuit breaker remote control tripping device according to claim 1, characterized in that, the controller is provided with an antenna, and the inside of the controller is provided with a control circuit board and a power supply; the remote controller is provided with A keyboard, a display screen, control buttons and an antenna, and a control circuit board and a power supply are arranged inside the remote controller. 3. The 10kV switchgear circuit breaker remote control tripping device according to claim 1, characterized in that the connecting piece is rotatably connected to the base. 4. The 10kV switchgear circuit breaker remote tripping device according to claim 1, characterized in that, the connecting piece includes three metal plates, the metal plates are connected in sequence through a rotating shaft, and one end of the connecting piece is connected with the rotating shaft through the rotating shaft. The base is connected, and the other end is provided with a fixed foot, and the rotating shaft is a shaft with a locking function. 5. The 10kV switchgear circuit breaker remote tripping device according to claim 1, characterized in that there are multiple connecting pieces. 6 . The remote tripping device for a circuit breaker of a 10kV switchgear according to claim 1 , wherein the elastic member is a return spring. 7 . 7. The 10kV switchgear circuit breaker remote control tripping device according to any one of claims 1-6, characterized in that the first end of the operating rod is provided with a rubber head. 8. The 10kV switchgear circuit breaker remote control tripping device according to any one of claims 1-6, characterized in that, the tail end of the operating rod is provided with a stroke adjustment knob, which is connected to the operating rod through a threaded structure, and the The return spring is arranged between the stroke adjustment knob and the base. 9. The 10kV switchgear circuit breaker remote control tripping device according to any one of claims 1-6, characterized in that the fixed feet are magnetic fixed feet, and the inside of the fixed feet is provided with a layer of NdFeB strong magnetic material . 10. The 10kV switch cabinet circuit breaker remote control tripping device according to any one of claims 1-6, wherein the fixed foot is any one of a suction cup type fixed foot, a clamping type fixed foot, and a bolt type fixed foot kind.