Management and Prevention of Low Bearing Insulation for Reactor Coolant Pump Motors of CPR1000 Nuclear Power Plant

Duan Shengzhi; Li Qiangtao; SHi Shengli; Lu Hongjie; Li Gengliang

doi:10.13832/j.jnpe.2017.02.0140

Volume 38 Issue 2

Feb. 2025

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Duan Shengzhi, Li Qiangtao, SHi Shengli, Lu Hongjie, Li Gengliang. Management and Prevention of Low Bearing Insulation for Reactor Coolant Pump Motors of CPR1000 Nuclear Power Plant[J]. Nuclear Power Engineering, 2017, 38(2): 140-144. doi: 10.13832/j.jnpe.2017.02.0140

Citation:

Duan Shengzhi, Li Qiangtao, SHi Shengli, Lu Hongjie, Li Gengliang. Management and Prevention of Low Bearing Insulation for Reactor Coolant Pump Motors of CPR1000 Nuclear Power Plant[J]. Nuclear Power Engineering, 2017, 38(2): 140-144. doi: 10.13832/j.jnpe.2017.02.0140

Citation:

Duan Shengzhi, Li Qiangtao, SHi Shengli, Lu Hongjie, Li Gengliang. Management and Prevention of Low Bearing Insulation for Reactor Coolant Pump Motors of CPR1000 Nuclear Power Plant[J]. Nuclear Power Engineering, 2017, 38(2): 140-144. doi: 10.13832/j.jnpe.2017.02.0140

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Management and Prevention of Low Bearing Insulation for Reactor Coolant Pump Motors of CPR1000 Nuclear Power Plant

doi: 10.13832/j.jnpe.2017.02.0140

China Nuclear Power Engineering Co. Ltd., Shenzhen, Guangdong, 518124, China

Received Date: 2016-06-27
Rev Recd Date: 2016-12-06

Available Online: 2025-02-09

Abstract

Abstract

Considering the incident of bearing insulation lost for reactor coolant pump motor in Unit 3 of CPR1000 Ningde Nuclear Power Plant,three main reasons for low bearing insulation of the reactor coolant pump motors are analyzed and studied.14 standard check-up steps are formed to solve the low bearing insulation for reactor coolant pump motors successfully.Five measures to prevent the motor from low bearing insulation on site are proposed.
- Reactor coolant pump motor,
- Bearing insulation,
- China improved three loops Pressurized Water Reactor（CPR1000）,
- Nuclear power unit,
- Reason analysis,
- Prevention