System and method for monitoring combined test of over-current overload protective device

Abstract

The invention discloses a system and method for monitoring a combined test of an over-current overload protective device. The method comprises that a background host computer processes a testing case information configured by a human-machine interaction module and transmits the processed testing case information to a front-end processor; the front-end processor analyzes the processed testing case information as a control command; a master control board configures a corresponding channel in a digital output board; the output voltage of a DC adjustable power supply is output via the corresponding channel of the digital output board to provide a DC excitation signal; a relay protection tester configures output voltage to provide an AC excitation signal; an adapting device conditions a power signal the excitation signals, and a response signal; the master control board configures corresponding channels in a digital input board and an analog input board in order that the digital input board acquires a response signal of relay operation and the analog input board acquires the AC excitation signal; and the background host computer processes the response signal and outputs the same via the human-machine interaction module. The technical scheme disclosed by the invention solves problems of low efficiency and high requirements for operators.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to a monitoring system and method for combined copying of overcurrent and overload protection devices. Background technique [0002] The overcurrent and overload protection device is composed of the overcurrent protection clip, the overload protection clip and the base. The base provides a DC voltage source for the entire overcurrent and overload protection device, and converts the current signal of the current transformer into a voltage signal to provide For overcurrent protection card and overload protection card. The function and performance of overcurrent and overload protection devices directly affect the safe and stable operation of the entire nuclear power grid system. Therefore, the combination copying monitoring of overcurrent and overload protection devices has become an urgent task for nuclear power plants. [0003] At present, nuclear power plants use manual testing method...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an overcurrent and overload protection device combination copying machine monitoring system and method in view of the above-mentioned low efficiency and high requirements for operators in the prior art, which has high testing efficiency and is not harmful to the operation. Low personnel requirements

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