Characteristic instrument device of circuit breaker

Abstract

The invention relates to a characteristic device of a circuit breaker. The device comprises a matching box of an instrument device of the circuit breaker and a secondary adapter used for outputting various signals by the matching box of the characteristic instrument device of the circuit breaker to the circuit breaker, wherein the matching box of the characteristic instrument of the circuit breaker comprises an input power supply jack, a switch on-off input signal jack, a secondary adapter switching-on jack, a spring energy storage power supply output jack, an electric deblocking power supply output jack, an earth jack and various indicating lamps; the input power supply jack is assembled on the casing of a crate and connected with the input end of the power supply; the switch on-off input signal jack is connected to a switch on-off signal input end; the secondary adapter switching-on jack is connected to a secondary adapter interface; the spring energy storage power supply output jack is prepared; one end of the secondary adapter is connected to the output end of the matching box of the characteristic instrument of the circuit breaker through a jack, and the other end of the secondary adapter is connected to the aviation jack of the circuit breaker in an aviation plug mode; according to the invention, a spring energy storage power supply and a switch off deblocking power supply are generated, in the former test, a switch characteristic instrument does not have the output of the spring energy storage power supply and the switch off deblocking power supply; through the output mode of the secondary adapter, the wiring method of the original test is reformed thoroughly, the complex and unsafe wiring is avoided, and the working safety and efficiency are improved greatly; and aiming at the variety of the switches, a plurality of models are designed for the secondary adapter and correspond to the different switches, thus the device has favorable generality.

Description

technical field [0001] The invention relates to a characteristic test device of a high-voltage circuit breaker, which belongs to the technical field of electric power. Background technique [0002] Circuit breaker characteristic test is an important work type in power system. The equipment used in the test mainly includes circuit breaker characteristic instrument, test line and metal clip. The traditional circuit breaker characteristic test mainly has the following problems: First, the output mode of the signal of the circuit breaker characteristic instrument is a test line and a clip. During the test, one end of the test line is connected to the characteristic instrument of the circuit breaker, and the other end is clamped on the corresponding pin of the aviation plug of the circuit breaker through a clip. The operation is time-consuming and laborious, and the efficiency is low. Moreover, the clips are easy to fall off on the pins to cause accidents such as short circuit ...

AI Technical Summary

Problems solved by technology

During the test, one end of the test line is connected to the circuit breaker characteristic instrument, and the other end is clamped to the corresponding pin of the circuit breaker aviation plug by a clip, which is time-consuming, laborious and inefficient.

Moreover, the clips are easy to fall off on the pins to cause accidents such as short circuit and electric shock, which is extremely unsafe; secondly, because the current circuit breaker characteristic instrument can only output the circuit breaker opening / closing control signal, but cannot provide the circuit breaker spring storage Therefore, the spring energy storage of the circuit breaker in the test needs to be operated manually, which is time-consuming, laborious and dangerous; moreover, the circuit breaker characteristic instrument cannot provide the electrical unlocking signal of the circuit breaker closing, resulting in It is necessary to manually press the relevant unlock button to unlock the switch, which is a very dangerous operation

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