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

A technology of response time and protection system, applied in the direction of measuring devices, parts of electrical measuring instruments, measuring electricity, etc., can solve the problems of consuming a lot of human capital and time capital, disconnecting wiring errors, etc., to reduce human errors and improve Efficiency, signal output and the effect of simplified measurement methods

Inactive Publication Date: 2020-03-27
CNNC FUJIAN FUQING NUCLEAR POWER
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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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  • Signal generation and acquisition device for measuring response time of protection system

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Embodiment 1

[0050] The user will perform the response time measurement of the shutdown caused by the low pressure signal of the voltage regulator. First, the procedure script issues an instruction to set the voltage regulator pressure 5RCS005MP to 12MPa.g, the range of the instrument is 11-18MPa.g, and the command analysis module 2 passes Query the pre-compiled input and output signal form, and find that the channel corresponding to 5RCS005MP is channel 11, and the output type of 5RCS005MP is current output, and the calculated output current is 4+16*((12-11) / 18-11)=6.28mA , through the bus communication module 3, the information of the channel 11 is transmitted to the 7 output signal channel selector through the 4 main controller module, and the channel selector is switched to the channel 11. At the same time, the command that the current output card needs to output 6.28mA is transmitted to the output signal module, and the current card in the output module outputs 6.28mA and is transmitte...

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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...

Claims

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Application Information

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IPC IPC(8): H04L12/40G01R1/28G05B19/04
CPCG01R1/28G05B19/04H04L12/40006H04L2012/40228
Inventor 商海龙陈伟梁鑫尤兵曹培根郑媛媛王东祥李晓振姚路锋王向阳郑健伟万舒李洪陈烨杨宝松夏小军
Owner CNNC FUJIAN FUQING NUCLEAR POWER
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