The Open Automation and Control Systems Journal

2015, 7 : 784-791
Published online 2015 August 19. DOI: 10.2174/1874444301507010784
Publisher ID: TOAUTOCJ-7-784

Application of Partial Discharge Online Monitoring Technology in ± 660kV Converter Transformer

He Ninhui , Wang Bo , Zhang Tao and Guo Fei
Power Science Research Institute of State Grid Ningxia Power Co., Yingchuan Ningxia 750011, China.

ABSTRACT

The partial discharge detection technology (UHF) is specially used in YD-B Phase of ± 660kV converter transformer pole I system, in connection with overheating failure problems. Through analysis by PRPD map to strengthen the monitoring for partial discharge defective of converter transformer, the continuous tracking for the running state of converter transformer can be achieved. Application results show that: the signal of partial discharge characteristics can be effectively found inside the converter transformer through UHF Online Monitoring techniques, which has good sensitivity and interference capability, providing guarantee for safe and stable running of power equipment.

Keywords:

UHF, On-line Monitor, Partial Discharge, PRPD Map.