Analysis and Solution of Spike Current of Intermediate Range for Nuclear Instrumentation System

LI Xingqiang; WANG Yinli; XIAO Yu; XUE Bin

doi:10.13832/j.jnpe.2015.01.0104

Volume 36 Issue 1

Feb. 2025

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LI Xingqiang, WANG Yinli, XIAO Yu, XUE Bin. Analysis and Solution of Spike Current of Intermediate Range for Nuclear Instrumentation System[J]. Nuclear Power Engineering, 2015, 36(1): 104-107. doi: 10.13832/j.jnpe.2015.01.0104

Citation:

LI Xingqiang, WANG Yinli, XIAO Yu, XUE Bin. Analysis and Solution of Spike Current of Intermediate Range for Nuclear Instrumentation System[J]. Nuclear Power Engineering, 2015, 36(1): 104-107. doi: 10.13832/j.jnpe.2015.01.0104

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Analysis and Solution of Spike Current of Intermediate Range for Nuclear Instrumentation System

doi: 10.13832/j.jnpe.2015.01.0104

1. China Nuclear Power Engineering Company, Shenzhen, Guangdong, 518124, China;
2. Nuclear Power Institute of China, Chengdu, 610041, China

Received Date: 2014-04-23
Rev Recd Date: 2014-10-25

Available Online: 2025-02-15

Abstract

Abstract

During the initial start-up of HYH NPP unit 1, spike currents occurred in intermediate range channel of RPN system and reactor trip was triggered. After analyzing the operation principle of intermediate range channel and site inspection, and doing simulating test, the root cause was fixed on the bug of range switching of intermediate range channel. Then a solution based on parameters optimizing was made and executed on site.
- Intermediate range,
- Range switching,
- Spike currents