Huazhong Li

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for identifying open phase of circuit breaker...
- Patent number 10,267,859
- Issue date Apr 23, 2019
- NR ELECTRIC CO., LTD
- Jun Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Relay protection method and apparatus against LC parallel circuit d...
- Patent number 10,128,650
- Issue date Nov 13, 2018
- NR Electric Co., Ltd.
- Qixue Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Frequency-conversion differential protection method for output tran...
- Patent number 9,640,981
- Issue date May 2, 2017
- NR ELECTRIC CO., LTD
- Jun Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR IDENTIFYING OPEN PHASE OF CIRCUIT BREAKER...
- Publication number 20180149699
- Publication date May 31, 2018
- NR ELECTRIC CO., LTD.
- Jun CHEN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
RELAY PROTECTION METHOD AND APPARATUS AGAINST LC PARALLEL CIRCUIT D...
- Publication number 20170047729
- Publication date Feb 16, 2017
- Nr. Electric Co., Ltd
- Qixue Zhang
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
FREQUENCY-CONVERSION DIFFERENTIAL PROTECTION METHOD FOR OUTPUT TRAN...
- Publication number 20150255978
- Publication date Sep 10, 2015
- Nr. Electric Co., Ltd
- Jun Chen
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER