One-button rapid tester for mechanical characteristics of circuit breaker

Abstract

The invention provides a one-button rapid tester for mechanical characteristics of a circuit breaker, and relates to the technical field of transformer substation production, the one-button rapid tester comprises an instrument body, the instrument body is a rectangular structure, and a switch module is arranged at the left upper corner of the top of the instrument body; a storage battery pack is arranged on the left side of the instrument body; a test button is arranged at the front position of the top of the instrument body, and an emergency stop button is further arranged at the front position of the top of the instrument body. A time input piece is arranged at the right lower corner of the top of the instrument body, and a voltage regulating module is arranged in the middle of the left side of the top of the instrument body. The rotation step of the adjusting knob can be realized only under the cooperation of completing the pressing action, so that the adjusting knob is effectively prevented from being rotated by mistake, the voltage value is ensured not to be adjusted by mistake, and the problem that the existing tester is lack of a mechanism for protecting the adjusting knob of the voltage regulator and an adjusting knob may be touched by mistake when an operator performs other operations is solved.

Description

technical field [0001] The invention relates to the technical field of substation production, in particular to a quick tester for the mechanical characteristics of a one-button circuit breaker. Background technique [0002] With the development of society, people have higher and higher requirements for the safety and reliability of electricity consumption. High-voltage circuit breakers are responsible for the dual tasks of control and protection in the power system, and their performance is directly related to the safe operation of the power system. The mechanical characteristic parameter is one of the important parameters for judging the performance of the circuit breaker, and the circuit breaker mechanical characteristic tester is a special instrument developed to meet the needs of on-site testing of the high-voltage switch action characteristics. [0003] However, as far as the current traditional mechanical characteristic tester is concerned, when in use, since the open ...

AI Technical Summary

Problems solved by technology

[0003] However, as far as the current traditional mechanical characteristic tester is concerned, when in use, since the open circuit breakers of 110kV and 220kV are usually relatively high, when connecting the time test line, the staff need to use a lift truck or a ladder to clamp the test clip To the wires or clamps, involving high-altitude operations, there are certain safety risks;

[0004] Moreover, at present, when the tester connects the DC output line of the mechanical characteristic instrument to the secondary terminal block, two methods are usually used. One is to remove the original protection trip line, wrap it with insulating tape, and then connect the DC output of the mechanical characteristic instrument to the secondary terminal block. Insert the wire into the wiring hole, but this method is time-consuming and laborious, and once the error is recovered, it is easy to cause the circuit breaker to move or malfunction. The second is to use the clip to connect the DC output wire of the mechanical characteristic instrument to the terminal block, but the clip in this method It is easy to clamp not firmly, and once it falls off, it is easy to cause a DC short circuit;

[0005] Moreover, the current tester lacks a protection mechanism for the adjustment knob of the voltage regulator. The adjustment knob may be touched by mistake when the operator performs other operations, causing the adjustment knob to be rotated by mistake, resulting in the value being adjusted incorrectly, making the voltage value too high. Large, resulting in supporting electrical appliances burning, not only led to wrong test results, but also caused a certain loss;

[0006] In addition, the mechanical characteristic test of the circuit breaker involves low voltage test, synchronous time detection, opening and closing voltage detection, etc. Each item needs to be tested separately, which is time-consuming and laborious, and once the parameters are set incorrectly, it is easy to burn the secondary equipment. At the same time, the existing test The DC output of the instrument lacks a timing device. When the DC output is continuous during tripping or closing, it is easy to cause the tripping, closing coil, and rectifier bridge to be continuously charged, and it is easy to burn out the tripping, closing coil, and rectifier bridge, which increases the maintenance workload.

Images