Scissor type isolation switch static contact having temperature measuring function

Abstract

The invention discloses a scissor type isolation switch static contact having a temperature measuring function, and belongs to the technical field of power transmission and transformation primary equipment. The scissor type isolation switch static contact having a temperature measuring function includes a static contact tube body, an electricity taking coil, a temperature sensor, a temperature acquisition wireless transmission module, wherein the temperature sensor and temperature acquisition wireless transmission module are installed in the static contact tube body, and the temperature acquisition wireless transmission module is supplied with power by the electricity taking coil. The temperature of the scissor type high-voltage isolation switch contact can be effectively monitored, safe operation of the scissor type isolation switch static contact can be guaranteed, and processing of temperature data receiving and storage through a wireless temperature measuring system is facilitatedto monitor and inquire the temperature variation condition of the isolation switch in real time.

Description

technical field [0001] The invention relates to a static contact of a scissor type isolating switch with a temperature measuring function, belonging to the technical field of power transmission and transformation primary equipment. Background technique [0002] The scissor-type isolating switch is flexible and convenient to operate, and is widely used in 110kV and above substations. However, in the process of long-term operation, it often occurs that the contact part of the switch is heated due to the increase of contact resistance due to aging or poor closing. If it is not discovered in time, the relevant protection will operate, the circuit breaker will trip, and a large area will be blacked out. , In severe cases, electrical equipment will be burned, endangering the safe operation of the power grid. In recent years, many switch overheating accidents have occurred in power plants and substations, resulting in fires and large-scale blackouts. Solving the problem of switch ...

AI Technical Summary

Problems solved by technology

[0003] The scissor-type isolating switch forms a current path by clamping the contact rod on the static contact by the moving contact like scissors. Since the current generally moves on the outer surface of the metal, some static contact rods are used to save materials. The contact rod is made into a hollow static contact tube. In addition, for the reliability of the action, the clamping position of the isolating switch is designed in the middle of the static contact rod. The existing technology usually uses a ring-shaped wireless temperature measuring device installed later. Monitor the working temperature of the high-voltage isolating switch contacts, but if the installation position is too close to the contact point of the dynamic and static contacts, it will easily affect the joint action of the moving contacts, causing danger; if the installation position is too far away, the contact temperature monitoring response will be too slow, It also affects the monitoring effect

Moreover, this rear-mounted wireless temperature measuring device requires secondary purchases, secondary construction, and separate maintenance from the isolating switch, which is cumbersome to use.

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