Signal generation and acquisition device for measuring response time of protection system

Abstract

The invention belongs to the technical field of nuclear power plant operation monitoring, and particularly relates to a signal generation and acquisition device for measuring the response time of a protection system. The device comprises a command analysis module, a bus communication module, a main controller module, a signal output module, a signal input module and a time recording module. A signal output and input module is adopted to replace a conventional signal generator and an oscilloscope, so that conventional signal output and measurement means are simplified, and the test efficiency is improved. A signal channel self-checking function is achieved, channel self-checking can be executed before a test, and the availability of a channel is guaranteed. The input module and the output module are integrated in the same case and are connected with the channel selector through the quick connectors, so that manual disassembly of a large number of cables is avoided, and the possibility of human errors is reduced. The signal output module outputs a signal to the protection cabinet and sends a step voltage signal as a time label at the same time, and is used for responding to automation of time result calculation.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant operation monitoring, and in particular relates to a signal generating and collecting device for measuring the response time of a protection system. Background technique [0002] The reactor protection system of a nuclear power plant generally adopts a nuclear-level digital control system. The upper end is connected to a protection instrument group (nuclear instrument and thermal instrument), receives the physical parameters monitored by the instrument, performs logical processing, and gives a protection action trigger signal when the logical combination meets the requirements. , to drive the downstream shutdown circuit breaker or special safety driver action to complete the protection function. According to the requirements of nuclear power plant safety standards, in order to ensure the confidence that the reactor protection system achieves the expected protection function, it is nece...

AI Technical Summary

Problems solved by technology

In the past, this experiment was done manually, requiring an external oscilloscope, signal generator, and related channel cables to record and read data through the oscilloscope. The entire experiment required a lot of human capital and time capital, and there were human errors such as wiring errors. trap

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