Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System

Liu Jun; Zhu Changrong

Volume 35 Issue S1

Feb. 2025

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Liu Jun, Zhu Changrong. Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System[J]. Nuclear Power Engineering, 2014, 35(S1): 47-49.

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Liu Jun, Zhu Changrong. Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System[J]. Nuclear Power Engineering, 2014, 35(S1): 47-49.

Liu Jun, Zhu Changrong. Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System[J]. Nuclear Power Engineering, 2014, 35(S1): 47-49.

Citation:

Liu Jun, Zhu Changrong. Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System[J]. Nuclear Power Engineering, 2014, 35(S1): 47-49.

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Reconstruction of Second Highest/Lowest Selection in 600 MW PWR Control System

CNNC Nuclear Operations Management Co., Ltd., Haiyan, Zhejiang, 314300, China

Received Date: 2013-11-15
Rev Recd Date: 2014-01-20

Available Online: 2025-02-15

Abstract

Abstract

During Instrumentation Channel Calibration Test（T1 test） or under the condition of instrumentation malfunction,mistakes due to man-made intervention are observed now and then,so that the steady state operation of the unit is not guaranteed.In order to solve this problem,control logic of Second Highest Selection,Second Lowest Selection has been introduced to the control system of four units in the Second Plant of CNNP Nuclear Power Operations Management Co.,LTD.This paper describes the operation principle,method of work and detailed alteration of Second Highest Selection,Second Lowest Selection.Besides,based on the analysis of test data,the feasibility of this alteration project has been validated.At the same time,this paper introduces the detailed application of this alteration.
- Second highest selection,
- Second lowest selection,
- Intermedium selection,
- Alteration,
- Safety

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