CN210167854U

CN210167854U - Combined switch control system

Info

Publication number: CN210167854U
Application number: CN201920963262.6U
Authority: CN
Inventors: 唐凯; 章琼渊; 叶孙岳
Original assignee: Zhejiang Guan Feng Da Electrical Equipment Co Ltd
Current assignee: Zhejiang Guan Feng Da Electrical Equipment Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-20
Anticipated expiration: 2029-06-25

Abstract

The utility model provides a combination switch control system, include: the remote controller, the switch control device and the terminal equipment; the switch control device comprises a sensor, low-voltage side switch equipment, high-voltage side switch equipment and a controller; the sensor is used for detecting the electrical information on the distribution line of the transformer; the remote controller is in wireless connection with the controller, the controller is in wireless connection with the terminal equipment, the controller is respectively in circuit connection with the sensor, and the controller controls the on-off of the low-voltage side switch equipment firstly and then controls the on-off of the high-voltage side switch equipment according to detected electric information. The utility model discloses an add low-voltage side switchgear at low pressure side distribution lines, realize the combination switch of a high-low voltage circuit, avoid because the electric arc that the short circuit produced, through the switching-on and switching-off of remote control switch to improve factor of safety.

Description

Combined switch control system

Technical Field

The utility model relates to a on-off control on the electric wire netting, concretely relates to combination switch control system.

Background

High-voltage switch equipment is arranged between a high-voltage line of a power grid and a transformer, so that the transformer equipment and the line can be maintained and overhauled conveniently or the electricity can be limited conveniently. General high tension switchgear includes high voltage circuit breaker, isolator, load switch, fuse and high tension switchgear etc, for example, general fuse is by high-pressure vase, the fuse tube, the high tension switchgear wiring, fuse tube one end and vase high tension switchgear wiring swing joint, the other end passes through fuse activity shackle and connects on the vase, when separating brake or closing a floodgate, need use special high-voltage insulation stick manual work to push up or pull down, during operation operating personnel need dress insulating boots and insulating gloves, the operation is more troublesome, and the incident takes place easily, especially when the bad weather operation of rainy day lamp, personal safety accident takes place very easily.

High voltage switchgear installs on the high voltage side distribution lines of transformer usually, and it is when cutting off high voltage switchgear, and the disconnection point of circuit is for making the electric current switch on for the potential difference increases suddenly, thereby punctures the air, because the air resistance is big, the air temperature is very high, can the burning conductive contact this moment, and high temperature makes the air produce a large amount of free electrons, thereby makes other circuits cause the short circuit, further produces electric arc, and then takes place the incident, endangers life and property safety.

SUMMERY OF THE UTILITY MODEL

The application provides a combined fuse control system to solve the potential safety hazard problem that single fuse switched on and switched off brought.

The utility model discloses the technical scheme who adopts:

a combination fuse control system comprising: the remote controller, the switch control device and the terminal equipment;

the switch control device comprises a sensor, low-voltage side switch equipment, high-voltage side switch equipment and a controller;

the sensor is used for detecting the electrical information on the distribution line of the transformer;

the remote controller is wirelessly connected with the controller, the controller is wirelessly connected with the terminal equipment, the controller is connected with the sensor circuit,

and the controller respectively controls the on-off of the low-voltage side switch device and the high-voltage side switch device according to the detected electric information.

Preferably, the low-voltage side switching device is connected in series in a distribution line on the low-voltage side of the transformer.

Preferably, the high-side switching device is connected in series in a distribution line on the high-side of the transformer.

Preferably, the low-voltage side switch device includes a first motor, a first transmission mechanism, and a first switch, the controller controls the first motor to drive the first transmission mechanism to move according to the detected electrical information, and the first transmission mechanism drives the first switch to perform switching operation.

Preferably, the high-voltage side switch device comprises a second motor, a second transmission mechanism and a second switch, the controller controls the second motor to drive the second transmission mechanism to move according to the detected electrical information, and the second transmission mechanism drives the second switch to perform switching operation.

Preferably, the switch control device comprises a camera device; the controller is electrically connected with the camera device and transmits the image information acquired by the camera device to the terminal equipment.

Preferably, the sensor includes a voltage transformer for detecting voltage information on the distribution line and/or a current transformer for detecting current information on the distribution line.

Preferably, the second switch is any one of a fuse, a high voltage circuit breaker, a disconnector, and a load switch.

Preferably, the first switch is any one of a fuse, a low-voltage circuit breaker, a disconnector, and a load switch.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) an operator can open and close the switch control device through the remote controller on site, so that the operation safety coefficient is improved;

(2) an operator can carry out switching on and off operations on the switch control device through the terminal equipment, so that intelligent control is realized, and the working efficiency is improved;

(3) an operator can monitor the switch control device and the distribution line through the camera device.

(4) An operator can operate the low-voltage side switch equipment to operate the high-voltage side switch equipment by opening and closing the switch control device arranged in the distribution line at the high/low voltage side, so that safety accidents caused by electric arcs generated by short circuits of other lines due to disconnection of the high-voltage side switch equipment of the high-voltage line are avoided, and the safety coefficient is further improved;

drawings

Fig. 1 is a block diagram of a combination switch control system according to the present invention;

fig. 2 is a block diagram of a switch control device according to the present invention;

fig. 3 is a block diagram of a low-voltage side switching device according to the present invention;

fig. 4 is a block diagram of a high-voltage side switching device according to the present invention;

fig. 5 is a schematic structural diagram of a fuse according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings.

Fig. 1 is the utility model discloses a block diagram of combination switch control system, including remote controller 2, on-off control device 1, terminal equipment 3, wherein remote controller 2 and on-off control device 1 wireless connection, on-off control device 1 and terminal equipment 3 wireless connection. The switching control device 1 is installed on a distribution line between a high-voltage line and a transformer, and is connected in series with the distribution line. Further, the switch control device 1 is used for protecting a distribution transformer in a distribution line, and when the line is abnormal, the switch control device 1 automatically opens a brake to achieve the effect of protecting the distribution transformer. The remote controller 2 can perform switching on and off operations on the switch control device 1 in a short distance through wireless communication, so that the safety construction of field operators is facilitated, and the safety factor of the operators is improved. Further, the switch control device 1 sends the electrical information of the distribution line to the terminal device 3, so that an operator can conveniently monitor the state of the distribution line in real time through the terminal device 3, and send a control instruction to the switch control device 1 remotely through the terminal device 3, and the switching operation of the remote control switch control device 1 is realized. The terminal device 3 may be a computer or a mobile device, so as to realize intelligent control and further improve the working efficiency.

Fig. 2 is a block diagram of a switch control device 1 according to the present invention, where the switch control device 1 includes a sensor 6, a low-voltage side switch device 7, a high-voltage side switch device 8, and a controller 5; the low-voltage side switch device 7 is connected in series in a distribution line on a low-voltage side of the transformer, the high-voltage side switch device 8 is connected in series in a distribution line on a high-voltage side of the transformer, the sensor 6 is used for detecting electric information on the distribution line of the transformer, and the controller 5 controls the on-off of the low-voltage side switch device 7 and the high-voltage side switch device 8 respectively according to the detected electric information. Specifically, the controller 5 wirelessly transmits electrical information to the remote controller 2 or wirelessly transmits electrical information to the terminal device 3, wherein the electrical information may include voltage, current, or other fault information. Further, the controller 5 may be a single chip microcomputer, for example, the type is: STM32F 103C. The controller 5 can automatically control the on/off of the switch control device 1 according to the electric information detected by the sensor 6 and the preset safety threshold range, and can also wirelessly control the on/off of the low-voltage side switch device 7 and the high-voltage side switch device 8 through a control instruction of the remote controller 2 or the terminal device 3. Of course, for safety reasons, when the operator operates on site, the control command of the remote controller 2 is preferred to the control command of the terminal device 3, and therefore, while the remote controller 2 and the controller 5 are in wireless communication, the terminal device 3 can receive the detection information from the controller 5, but cannot transmit the operation command for controlling the on/off of the switch to the controller 5, thereby ensuring the personal safety of the operator on site.

Further, because high-voltage side switchgear 8 is installed only on the distribution lines of high-voltage side to general distribution lines, when carrying out switching-on/switching-off operation to this high-voltage side switchgear 8, because for the loaded operation this moment, consequently when direct cutting off high-voltage side switchgear 8, the disconnection point of circuit is in order to make the electric current switch on, make the potential difference increase suddenly, thereby puncture the air, but because the resistance value of air is big, the temperature of air is very high, can directly burn electrically conductive contact, and high temperature makes and produces a large amount of free electrons in the air, thereby can make other circuits cause the short circuit. Therefore the utility model discloses install low pressure side switchgear 7 in the distribution lines of low pressure side, preferably, when opening and closing the operation to switching control device 1, controller 5 controls low pressure side switchgear 7 earlier and opens the floodgate operation, accomplish low pressure side switch and open the floodgate operation after, controller 5 controls high pressure side switchgear 8 again and opens the floodgate operation, because low pressure side distribution lines has been in the outage state this moment, consequently when high pressure side switchgear 8 cuts off the power supply, low pressure side circuit is electrified and leads to the short circuit can not appear, thereby avoided producing electric arc because of the short circuit of distribution lines.

Further, fig. 2 includes a camera device 9, and the camera device 9 is electrically connected to the controller 5. The camera device 9 sends the video images of the collected switch control device 1 and the distribution line surrounding environment to the controller 5, the controller 5 wirelessly transmits the video images collected by the camera device 9 to the terminal device 3, and an operator can view the received content from the terminal device 3 in real time to realize real-time monitoring.

Of course, in this example, the operator may install the camera device 9 in cooperation with a cradle head of the camera device 9, so as to adjust and control the position and direction of the image captured by the camera device 9 to achieve omnidirectional video image capturing, thereby ensuring omnidirectional analysis and judgment. Of course, in some implementations, the controller 5 may acquire an image when the switch control device 1 is preset, and then send the acquired image to the terminal device 3, and an operator may compare the image received by the terminal device with a stored image, determine whether the image is abnormal, and make a corresponding indication in time.

Fig. 3 is a block diagram of the low-voltage side switch device 7 of the present invention, specifically, the low-voltage side switch device 7 connected in series in the distribution line of the low-voltage side of the transformer, which includes a first motor 10, a first transmission mechanism 11, and a first switch 12. Fig. 4 is a structural block diagram of the high-side switch device 8 of the present invention, specifically, the high-side switch device 8 connected in series in the distribution line of the high-side of the transformer, which includes a second motor 13, a second transmission mechanism 14, and a second switch 15.

Specifically, the controller 5 sends the electrical information detected by the sensor 6 and the video image acquired by the camera device 9 to the terminal device 3, further, a field operator sends a switching-off operation instruction through the remote controller 2 or the terminal device 3 sends a switching-off operation instruction to the controller 5, the controller 5 controls the first motor 10 to drive the first transmission mechanism 11 to move according to the switching-off operation instruction, the first transmission mechanism 11 drives the first switch 12 to perform switching-off operation, then controls the second motor 13 to drive the second transmission mechanism 14 to move, and the second transmission mechanism 14 drives the second switch 15 to perform switching-off operation; and then, the operator checks the fault, and after the contact fault occurs, the controller 5 receives a closing operation instruction to control the closing operation of the low-voltage side switching device 7 and the high-voltage side switching device 8.

Further, the first switch 12 may be any one of a fuse, a low-voltage circuit breaker, a disconnector, and a load switch, and the second switch 15 may be any one of a fuse, a high-voltage circuit breaker, a disconnector, and a load switch; the first switch 12 is a high voltage switchgear. Here, the switching control device 1 may employ any combination of the first switch 12 and the second switch 15.

For example, the fuse is a high-voltage side switch device/a low-voltage side switch device in this embodiment, and includes a driving motor, a transmission mechanism, and a fuse tube. As shown in fig. 5, the fuse specifically includes a driving motor 200, a fuse tube 400, and a transmission mechanism including: push-pull rod 310, swing arm 340, pendulum frame 330, column rack bar 210, moving contact 360, the fuse still includes in addition: high-voltage porcelain tube 100, fixing plate 350, fixing seat 320, etc. One end of the fusing tube 400 is electrically connected with the high-voltage wiring terminal, the other end of the fusing tube 400 is fixedly connected with the moving contact 360, the fixed seat 320 is arranged below the high-voltage porcelain tube 100, one end of the swing arm 340 is fixedly provided with the swing frame 330, the swing frame 330 and the fusing tube 400 are respectively hinged on the fixed seat 320 through a pin shaft or two independent shafts arranged on the same axis, the swing frame 330 can be in a U-shaped structure, one side of the swing frame 330 is provided with an integrally formed lug, the end part of the lug is hinged with one end of the push-pull rod 310, and the other end of the push-pull rod 310 is connected with; the fusing tube 400 is provided with a push-pull ring and a connecting block with an arc groove, and the other end of the swing arm 340 is provided with a hook which is hung in the push-pull ring.

The driving motor 200 is provided with a gear engaged with the columnar rack bar 210, the driving motor 200 is installed on the fixing plate, the columnar rack bar 210 is fixed on the surface of the fixing plate through two limiting clamps, the driving motor 200 is fixed on the other surface of the fixing plate, and the columnar rack bar is driven to move through the gear. The fuse realizes the synchronous motion of the fuse tube 400 and the swing arm 340 through the coaxial arrangement of the swing arm 340 and the fuse tube 400, thereby realizing the on-off of the fuse.

The remote controller 2 and the controller 5 can adopt a wireless communication protocol for data transmission. Generally, a LoRa communication protocol is adopted, where LoRa is physical layer or wireless modulation for creating a long-distance communication connection, and compared with a conventional FSK technology, the LoRa technology based on the CSS modulation technology can greatly increase a communication range to ensure that a field operator performs operation control at a sufficiently long distance. Furthermore, the CSS technology has the characteristics of long transmission distance, strong anti-interference performance and the like. The controller 5 and the terminal device 3 can adopt 4G/5G communication, and the 4G/5G can quickly transmit high-capacity data such as high-quality pictures and videos. Rely on 4G 5G communication technology, the utility model discloses can adopt video acquisition device to realize the video and the picture control to switching control device 1 to be favorable to detecting the reason that the distribution lines broke down.

Further, the sensor 6 includes a voltage transformer and a current transformer; the voltage transformer is used for detecting voltage information on the distribution line; the current transformer is used for detecting current information on the distribution line; when the side distribution line has a short-circuit fault, the switch control device 1 can instantly disconnect the circuit to play a role in protection. When other abnormalities, such as voltage or current fluctuation, occur in the distribution line, the switching control apparatus 1 may be closed after the failure is resolved, such as disconnecting the low-side switching device 7 and then disconnecting the high-side switching device 8.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims

1. A combination switch control system, comprising: the remote controller, the switch control device and the terminal equipment;

the remote controller is wirelessly connected with the controller, the controller is wirelessly connected with the terminal equipment,

the controller is connected with the sensor circuit,

the controller controls the on-off of the low-voltage side switch device firstly according to the detected electric information and then controls the on-off of the high-voltage side switch device.

2. The combination switch control system of claim 1, wherein the low side switching device is connected in series in a distribution line on the low side of the transformer.

3. The combination switch control system of claim 1, wherein the high side switch device is connected in series in a distribution line on the high side of the transformer.

4. The combination switch control system of claim 2, wherein the low-side switch device comprises a first motor, a first transmission mechanism, and a first switch, the controller controls the first motor to drive the first transmission mechanism to move according to the detected electrical information, and the first transmission mechanism drives the first switch to perform the switching operation.

5. The combination switch control system of claim 3, wherein the high-side switch device comprises a second motor, a second transmission mechanism, and a second switch, the controller controls the second motor to drive the second transmission mechanism to move according to the detected electrical information, and the second transmission mechanism drives the second switch to perform the switching operation.

6. The combination switch control system of claim 1, wherein said switch control means includes a camera means; the controller is electrically connected with the camera device and transmits the video image information acquired by the camera device to the terminal equipment.

7. The combination switch control system of claim 4, wherein the sensor comprises a voltage transformer for sensing voltage information on the distribution line and/or a current transformer for sensing current information on the distribution line.

8. The combination switch control system of claim 4, wherein the first switch is any one of a fuse, a low voltage circuit breaker, a disconnector, and a load switch.

9. The combination switch control system of claim 5, wherein the second switch is any one of a fuse, a high voltage circuit breaker, a disconnector, and a load switch.