CN202633140U - Isolating switch shunting apparatus - Google Patents

Abstract

The utility model relates to a shunt device on a high-voltage isolating switch. It includes a contact box composed of an upper box body and a lower box body. There is a cavity for installing a conductive rod between the upper box body and the lower box body. The upper box body and the lower box body can be relatively rotated and separated. The upper box body and the lower box body The box body is respectively provided with contacts and blades, and the blades are in contact with the insulating layer on the conductive rod when they move. The shunt device of the utility model can be charged and quickly short-circuited after the contacts of the high-voltage isolating switch are overheated during operation, so that most of the current passing through the heating part can be shunted to the shunt device to achieve rapid reduction without power failure. The temperature of the heating part can ensure the normal operation of the equipment, reduce the number of power outages of the equipment, and improve the reliability of power supply.

Description

An isolating switch shunting device

technical field

The utility model relates to a shunt device on a high-voltage isolating switch, which belongs to the technical field of power transmission devices.

Background technique

In recent years, various substations and power grid companies have reported that the contacts of high-voltage isolation switches are overheated due to long-term operation or instantaneous high current. If the power failure is not handled in time, the normal operation of the equipment will be affected and the power supply will be unstable. ; If the power outage is processed, it will cause the interruption of power supply, which will bring inconvenience to people's life and enterprise production.

Utility model content

The purpose of the utility model is to provide a solution to the problem of emergency power-off when the contacts of the high-voltage isolating switch are overheated during operation.

For this reason, the technical scheme adopted by the utility model is: the utility model comprises a contact box composed of an upper box body and a lower box body, a cavity for installing a conductive rod is arranged between the upper box body and the lower box body, and the upper box body 1. The lower box body can be relatively rotated and separated. The upper box body and the lower box body are respectively provided with contacts and blades. When the blade moves, it contacts the insulating layer on the conductive rod.

The blades are evenly distributed on the upper and lower boxes, and two blades are evenly distributed on the upper box and the lower box respectively.

The upper box body is connected with an upper arm to make it rotate, the lower box body is connected with a lower arm to make it rotate, and a screw rod is arranged between the upper arm and the lower arm to make them rotate.

A spring is sheathed on the screw rod, and the end of the spring is connected with a block that is fixedly connected to the upper and lower arms and can move along the screw rod.

The upper arm is provided with a locking mechanism composed of connecting rods.

The utility model has the advantages that: the shunt device of the utility model can be charged and quickly short-circuited after the contacts of the high-voltage isolating switch are overheated during operation, so that most of the current passing through the heating part can be shunted to the shunt device to achieve The temperature of the heat-generating part can be quickly reduced without power failure, thereby ensuring the normal operation of the equipment, reducing the number of power outages of the equipment, and improving the reliability of power supply.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the assembly diagram of the utility model.

In the figure, 1 is the upper box, 2 is the upper arm, 3 is the lock, 4 is the block, 5 is the spring, 6 is the screw, 7 is the lower arm, 8 is the lower box, 9 is the contact, 10 is the blade, 11 is conductive rod.

Detailed ways

The utility model comprises a contact box composed of an upper box body 1 and a lower box body 8. A cavity for installing a conductive rod 11 is provided between the upper box body 1 and the lower box body 8. The upper box body 1 and the lower box body 8 Relatively rotatable and separated, the upper box body 1 and the lower box body 8 are respectively provided with a contact 9 and a blade 10, and the blade 10 contacts the insulating layer on the conductive rod 11 when it moves.

The blades 10 of the present utility model are evenly distributed on the upper box body 1 and the lower box body 8, and preferably the upper box body 1 of the present utility model and the lower box body 8 are evenly distributed with two blades 10 respectively.

The upper box body 1 of the present utility model is connected with the upper arm 2 that makes it rotate, and the lower box body 8 is connected with the lower arm 7 that makes it rotate. A screw rod 6 that realizes rotation; a spring 5 is sleeved on the screw rod 6, and the end of the spring 5 is connected with a stopper 4 that is fixedly connected to the upper arm 2 and the lower arm 7 and can move along the screw rod 6; The lock catch 3 mechanism composed of rods.

The blade 10 of the utility model adopts a high-speed steel blade, which is bonded and fixed in the slots of the upper box body 1 and the lower box body 8. When the blade 10 slides up and down along the slideway due to changes in external force, the integrated slot will It plays the role of maintaining the stability of the movement orientation, so that the blade 10 works stably and reliably. In addition, the blade 10 is distributed in 4 equal parts along the circumference and arranged at wide and narrow intervals. In this way, it is only necessary to rotate the body 90° around the center to complete the required rotation. The removal of the insulation works.

The contacts 9 and the blades 10 of the present utility model are arranged successively in a quincunx shape according to the same circular track, and when there is no external force, the compression springs 5 respectively push the body upright all the time and make it tighten up and down with the cavity. When there is external force compression, the respective reaction forces rise to the rated value. Since all contacts 9 and blades 10 are designed into small segments and large degrees of freedom, the random compliance of external contact is large, so that the contact is closer and more reliable. .

The working process of the utility model is as follows: 1. The whole machine can be easily sent to the main body of the high-altitude isolating switch in place by using the insulating joystick, and then pull the mechanism down with a little force to close the switch immediately, and continue to use the insulating joystick to move along the 90 Pull up and down the range several times, the blades 10 evenly distributed along the circumference of the contact box will effectively remove the insulation layer within the working range of the contact 9, and the plum blossom contacts 9 distributed synchronously in the box will follow the track of scraping the insulation at the same time , effectively complete the run-in with the main conductor. The process is similar to the running-in scene between the static and dynamic contacts at the moment of closing of the circuit breaker. 2. Use the insulated joystick to buckle the relevant parts of the whole machine and push it up slightly, the lock 3 will be opened, the mechanism will be separated, the contact box in front will be opened at the same time, and the whole machine will be able to operate from the high-altitude line. remove.

The utility model combines separation and opening into one, utilizes the remaining energy of the spring 5 after closing to achieve labor-saving opening under normal working load (force), simplifies the mechanism, reduces the manufacturing cost, shortens the production cycle, and brings Easy maintenance.

The contact 9 of the utility model adopts multi-layer metal foil strips to utilize the elastic deformation of the hardware material to be clamped and formed, so that the manufacturing process is simple, no welding and riveting is required, and the skin effect is satisfied.

Claims (1)

1. A disconnector shunt device, characterized in that it comprises a contact box consisting of an upper box body and a lower box body, a cavity for installing a conductive rod is provided between the upper box body and the lower box body, the upper box body, The lower box body can be relatively rotated and separated, and the upper box body and the lower box body are respectively provided with contacts and blades, and the blades are in contact with the insulating layer on the conductive rod when they move. 2. The isolating switch distribution device according to claim 1, wherein the blades are evenly distributed on the upper and lower boxes, and two blades are evenly distributed on the upper box and the lower box respectively. 3. The isolating switch branching device according to claim 1 or 2, characterized in that, the blade is arranged in a slot for stable movement. 4. The isolating switch shunt device according to claim 1, characterized in that, the upper box is connected with an upper arm for rotation, and the lower box is connected with a lower arm for rotation, and the upper arm A screw rod that connects the two and makes them rotate is arranged between the lower arm and the lower arm. 5. The isolating switch shunt device according to claim 4, wherein a spring is sheathed on the screw, and the end of the spring is connected to a stopper fixedly connected to the upper and lower arms and movable along the screw. 6. The isolating switch distribution device according to claim 4, characterized in that the upper arm is provided with a locking mechanism composed of connecting rods. the

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