Relay protection channel performance testing method and system

Abstract

The invention discloses a relay protection channel performance testing method, which comprises the steps of receiving control information inputted by a user of each switch of a relay, and displaying the control information on an LCD display screen, wherein the control information includes a switching mode and a switch control time value of each switch; controlling the turn-off or turn-on of each switch in the relay according to the control information; detecting the indicator light state of each switch, wherein the switching mode of each switch is in one-to-one correspondence with the indicator light state; and evaluating the switching performance of each switch according to the indicator light state and the switching mode so as to obtain a switching performance result of a channel switching handle. The relay protection channel performance testing method and system provided by the invention can evaluate the switching performance of the relay protection channel switching handle throughdetecting the indicator light state, thereby effectively reducing the workload of the operation staff and reducing the construction difficulty, and thus being conducive to improving the test efficiency of the relay protection performance testing.

Description

technical field [0001] The invention relates to the technical field of electrical equipment testing, in particular to a performance testing method and system for a relay protection channel. Background technique [0002] The relay is an electrical control device, which is an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit when the change of the input quantity meets the specified requirements. It has an interactive relationship between the control system and the controlled system. Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit. [0003] At present, the method of testing the switching performance of the relay channel switching handle is to add a test pressure plate through the protect...

AI Technical Summary

Problems solved by technology

[0004] 1. Difficulty in construction: The control measures require that the protective screen cabinets have spare pressure plates. Taking Sifang as an example, there must be at least four spare pressure plates, and there is a shortage of spare pressure plates;

[0005] 2. The workload of the operators is increased and the channel test takes a long time: When checking the performance of the circuit, the operators need to switch the pressure plates, and the operators on the opposite side of the line also need to switch the pressure plates, and the two sides need to communicate and cooperate with each other. to 20 minutes;

[0006] 3. Significantly increased the running time of line no-master protection

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