LI Zhong-xiang, SONG Jian-cheng. On-line Temperature Measurement System for Contacts in HV Switchgear[J]. High voltageapparatus, 2009, 45(2): 11-13+17.
LI Zhong-xiang, SONG Jian-cheng. On-line Temperature Measurement System for Contacts in HV Switchgear[J]. High voltageapparatus, 2009, 45(2): 11-13+17.DOI:
The temperature measurement of contacts in a high voltage(HV) switchgear is very difficult because of the circumstance of high voltage and powerful electromagnetic field
which has serious impact on the reliability of electricity supply.This paper presents an on-line temperature measurement scheme for contacts in HV switchgear based on infrared temperature sensor.Temperature measurement circuits are designed
a software for measuring temperature is coded
and an on-line temperature measurement system based on local area network is hence developed.The experimental results of the system show that the measurement of contacts temperature is accurate