CN205017101U - Switching -on device is divided in a distant place - Google Patents

Abstract

The utility model discloses a remote opening and closing device, which relates to the technical field of power grid equipment. Including a box body, the inside of the box body is provided with a storage unit and a test unit. The test unit is composed of a test panel and a test circuit. The test panel is equipped with an AC leakage protection switch, a DC air switch, and a DC output switch. Switches, positive control bus terminals, closing output terminals, opening output terminals and negative control bus terminals. The utility model has the advantages of simple structure, convenient operation, low cost and reasonable design. It adopts dual power supply for power supply. When the direct current power supply cannot be obtained, the utility model can use alternating current input to convert the operating power supply of direct current to ensure the reliability of the device. It is suitable for the remote control switch to work when the communication is interrupted.

Description

A remote opening and closing device

technical field

The utility model relates to the technical field of power grid equipment, in particular to a remote opening and closing device.

Background technique

With the update of power grid equipment, all 110kV and above substations under the jurisdiction of the substation maintenance room have been built as integrated self-stations. During the operation of the comprehensive self-station in the past two years, the communication interruption will cause the switch to be unable to be remotely controlled, and the consequences are serious. In addition, due to the age of the comprehensive self-station equipment in some substations, the LAN network and CAN network structure are still used, resulting in abnormal communication and frequent interruptions. It has become a hidden danger affecting the safe and stable operation of the power grid, threatening the normal operation of the power grid and reliable and safe power supply.

When the communication is interrupted, it is sometimes necessary to open and close the switch, but the "Regulations on Power Substation Operation Regulations" clearly requires that the switch is not allowed to be operated on the spot, which has caused serious consequences that the switch cannot be opened and closed once the communication is interrupted. In order to operate the communication interruption equipment and strictly implement the regulations and specifications, it is urgent to develop a device for switching the communication interruption equipment outside the high-voltage switch room and switch field.

Utility model content

The technical problem to be solved by the utility model is to provide a remote opening and closing device, which is simple to operate and low in cost, and can open and close communication interruption equipment outside the high-voltage switch room and switch field, effectively avoiding failures during operation , ensuring the safe and reliable operation of the power grid.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a remote opening and closing device, including a box body, a storage unit and a test unit are arranged inside the box body, and the test unit consists of a test panel and The test circuit consists of an AC leakage protection switch, a DC air switch, a DC output on-off switch, a positive control bus terminal, a closing output terminal, an opening output terminal and a negative control bus terminal on the test panel. The test circuit includes AC leakage protector LK, rectifier bridge UR, capacitor C, DC air switch DK, DC output switch KK, positive control bus terminal +KM, negative control bus terminal -KM, closing output wiring Terminals, opening output terminals and wires; the AC power passes through the AC leakage protector LK and the rectifier bridge UR in turn, the positive output terminal and the negative output terminal are connected in parallel with a capacitor C, and the positive output terminal is controlled by the DC air switch DK and the positive The bus connection terminal +KM is connected to the DC output on-off switch KK, the negative output terminal is connected to the negative control bus terminal -KM through the DC air switch DK, and the two contacts of the DC output on-off switch KK are respectively connected to the closing output The terminal is connected to the opening output terminal.

Preferably, the box body is also hingedly connected with a box cover.

Preferably, the box body and box cover are made of aluminum alloy.

Preferably, the test panel is a plastic insulating board.

Preferably, the positive control bus connection terminal, closing output connection terminal, opening output connection terminal and negative control bus connection terminal are all connected with corresponding indicator lights.

The beneficial effects produced by adopting the above technical solution are: the utility model has simple structure, convenient operation, low cost, reasonable design, and adopts dual power supply for power supply. , to ensure the reliability of the device. It is suitable for remote control of the on-off switch when the communication is interrupted. Compared with the existing operation mode, it avoids the forced power outage of the busbar due to the inability to open and close a certain switch, and ensures the safe and reliable operation of the power grid. At the same time, it can be used for opening and closing of switches with different voltage levels of 220kV, 110kV and 10kV operate.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Fig. 2 is the circuit schematic diagram of the present utility model;

Among them, 1 box body, 2 box cover, 3 storage unit, 4 AC protection switch, 5 DC air switch, 6 DC output on-off switch, 7 positive control bus terminal, 8 closing output terminal, 9 opening output Terminals, 10 negative control bus terminals.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1 and Figure 2, the utility model is a remote opening and closing device, including a box body 1, a storage unit 3 and a test unit are arranged inside the box body 1, and the test unit consists of a test panel and a test unit. The test circuit consists of an AC leakage protection switch 4, a DC air switch 5, a DC output on-off switch 6, a positive control bus terminal 7, a closing output terminal 8, an opening output terminal 9 and Negative control bus terminal 10, the test circuit includes AC leakage protector LK, rectifier bridge UR, capacitor C, DC air switch DK, DC output switch KK, positive control bus terminal +KM, negative control bus terminal -KM, closing output terminal 8, opening output terminal and wires; the alternating current passes through the AC leakage protector LK and the rectifier bridge UR in turn, and the positive output terminal and the negative output terminal are connected in parallel with a capacitor C, and the positive output terminal After the DC air switch DK and the positive control bus terminal +KM are connected to the DC output on-off switch KK, the negative output terminal is connected to the negative control bus terminal -KM through the DC air switch DK, and the two DC output on-off switches KK The contacts are respectively connected to the closing output terminal and the opening output terminal, and the storage unit 3 can be used to store wires.

A further optimized solution of this embodiment is that the box body 1 is also hingedly connected with a box cover 2 .

The further optimized solution of this embodiment is that the box body 1 and the box cover 2 are made of aluminum alloy.

A further optimized solution of this embodiment is that the test panel is a plastic insulating board.

The further optimized solution of this embodiment is that the positive control bus terminal 7 , the closing output terminal 8 , the opening output terminal 9 and the negative control bus terminal 10 are all connected with corresponding indicator lights.

Instructions for use of this embodiment:

When used as a remote opening and closing device, disconnect the AC leakage protection switch 4, the DC air switch 5, and the DC output opening and closing switch 6, lead the device control positive power to the positive control bus terminal 7, and connect the hand-to-hand jumper contacts respectively It is led to the closing output terminal 8 and the opening output terminal 9, and the opening and closing operation of the switch is performed through the opening and closing handle DC output opening and closing switch 6.

When opening and closing the switch as an active operation box, close the AC leakage protection switch 4, DC air switch 5, and DC output on-off switch 6 to the on position (at this time, the control power of the device is disconnected), and put your hands together The jumper points are respectively led to the closing output terminal 8 and the opening output terminal 9, and the device control negative power is led to the negative control bus terminal 10, and the opening and closing of the switch is performed through the opening and closing handle DC output opening and closing switch 6 operate.

The box body of the utility model adopts an aluminum alloy structure, and the overall size is 35*55cm ² as shown in Figure 1. The installation is firm and the use is reliable; the test panel adopts a plastic insulating board, and the internal circuit is composed of electrical components and wires (1.5m㎡) according to the circuit principle The drawing is designed and made, the component cost is low, and it is easy to manufacture.

The utility model has the advantages of simple structure, convenient operation, low cost and reasonable design. It adopts dual power supply for power supply. When the direct current power supply cannot be obtained, the utility model can use alternating current input to convert the operating power supply of direct current to ensure the reliability of the device. It is suitable for remote control of the on-off switch when the communication is interrupted. Compared with the existing operation mode, it avoids the forced power outage of the busbar due to the inability to open and close a certain switch, and ensures the safe and reliable operation of the power grid. At the same time, it can be used for opening and closing of switches with different voltage levels of 220kV, 110kV and 10kV operate.

Claims (5)

1. a distant place switching off/on device, it is characterized in that: comprise casing (1), described casing (1) inside is provided with storage unit (3) and test cell, described test cell is made up of test panel and test circuit, described test panel is provided with ac leakage protection switch (4), direct current air switch (5), direct current exports a point combination switch (6), positive pole control bus binding post (7), combined floodgate output wiring terminal (8), separating brake output wiring terminal (9) and negative pole control bus binding post (10), described test circuit comprises ac leakage protector LK, rectifier bridge UR, electric capacity C, direct current air switch DK, direct current exports deciliter K switch K, positive pole control bus binding post+KM, negative pole control bus binding post-KM, combined floodgate output wiring terminal (8), separating brake output wiring terminal and wire, described alternating current is successively after ac leakage protector LK, rectifier bridge UR, cathode output end and cathode output end are also connected to electric capacity C, cathode output end exports a deciliter K switch K with direct current through direct current air switch DK and is connected after positive pole control bus binding post+KM, cathode output end is connected with negative pole control bus binding post-KM through direct current air switch DK, direct current export deciliter K switch K two contacts respectively with combined floodgate output wiring terminal and separating brake outlet terminal sub-connection.

2. an a kind of distant place according to claim 1 switching off/on device, is characterized in that: described casing (1) is also hingedly connected with case lid (2).

3. an a kind of distant place according to claim 1 and 2 switching off/on device, is characterized in that: described casing (1) and case lid (2) adopt aluminum alloy material.

4. an a kind of distant place according to claim 1 switching off/on device, is characterized in that: described test panel is plastic insulation plate.

5. an a kind of distant place according to claim 1 switching off/on device, is characterized in that: described positive pole control bus binding post (7), combined floodgate output wiring terminal (8), separating brake output wiring terminal (9) and negative pole control bus binding post (10) are all connected with corresponding indicator light.