Inventor
LI HUAZHONG
CN6 patents
⚠️ This page may combine multiple inventors who share the name “LI HUAZHONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NR ELECTRIC CO LTD
4 patentsUS11422204B2Aug 23, 2022
Method for detecting open phase of startup/standby transformer based on optical CT
NR ELECTRIC CO LTD0 citations48
US10267859B2Apr 23, 2019
Method and apparatus for identifying open phase of circuit breaker on basis of voltage
NR ELECTRIC CO LTD0 citations45
US10128650B2Nov 13, 2018
Relay protection method and apparatus against LC parallel circuit detuning faults
NR ELECTRIC CO LTD0 citations45
US9640981B2May 2, 2017
Frequency-conversion differential protection method for output transformer of static frequency converter system
NR ELECTRIC CO LTD0 citations39