Outdoor circuit breaker primary current drive test aid

Abstract

The invention discloses a primary current transmission test assist device for an outdoor breaker. The primary current transmission test assist device comprises a left clamping arm and a right clamping arm, wherein the lower end of the left clamping arm and the lower end of the right clamping arm are movably connected together. The upper portion of the left clamping arm and the upper portion of the right clamping arm are respectively arranged to be a left semi-ring and a right semi-ring, wherein the left semi-ring and the right semi-ring are matched in the opposite direction. An assist rod extending in the transverse direction is fixedly arranged in the middle of the left clamping arm, an assist hole matched with the assist rod is formed in the middle of the right clamping arm, an elastic device elastically pressing the right semi-ring on the left semi-ring through the right clamping arm is arranged on the assist rod, a locking piece used for being connected with a cable is arranged on an end portion of the assist rod, the upper end of the left clamping arm and the upper end of the right clamping arm are arranged to be in an open shape, and an insulation rod is fixedly connected at the lower end of the left clamping arm. The primary current transmission test assist device has the advantages of being reasonable in structure, convenient and quick to wire, safe and simple in operation and beneficial to reducing work difficulty of electric power maintenance personnel and improving work efficiency of the maintenance personnel, and climbing high is not needed.

Description

Technical field [0001] The invention relates to an auxiliary device for a primary current drive test of an outdoor circuit breaker. Background technique [0002] When conducting relay protection related tests on outdoor circuit breakers in substations, it is necessary to perform the test by simulating a partial connection from both sides of the circuit breaker and adding current. Since there is no special wiring device or experimental auxiliary device, at present, the relay protection personnel usually use the method of climbing the insulating ladder to clamp the test wires to the conductors on both sides of the circuit breaker. This method has the following shortcomings: 1. The wire of the circuit breaker is generally more than 3 meters away from the ground. Therefore, personnel climbing and operating at heights will not only have the danger of climbing and high-altitude operations, but also have the potential for electric shock at height; 2. The wire positions on both sides of ...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: 1. The wire part of the circuit breaker is generally more than 3 meters away from the ground. Therefore, personnel ascending to work on a height not only has the danger of climbing and high-altitude operation, but also has the risk of electric shock at high altitude; 2. The wire parts on both sides of the circuit breaker are The test line cannot be fixed at the same time, and at least two climbing operations are required. Therefore, it is time-consuming and laborious, which indirectly leads to low work efficiency and prolongs the power outage time

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