Title :
On-line monitoring and study of transformer DC bias
Author :
Hailiang, Lu ; Xishan, Wen ; Xiaoping, Li ; Xuefang, Tong
Author_Institution :
Sch. of Electr. Eng., Wuhan Univ., Wuhan
Abstract :
Basing on virtual instrument model, a suit of system was designed for monitoring DC bias of transformer. The monitoring system can measure the DC current through transformer neutral using Hall current sensor, the vibration of transformer oil tank using piezoelectric acceleration sensor, the noise of transformer using capacitive acoustic sensor. The software was developed on LabVIEW. The system was used to monitor the main transformer of a 500 kV substation.
Keywords :
DC transformers; power system measurement; DC current measurement; Hall current sensor; capacitive acoustic sensor; on-line monitoring; piezoelectric acceleration sensor; transformer DC bias; transformer neutral; virtual instrument; Acoustic measurements; Acoustic sensors; Capacitive sensors; Current measurement; Instruments; Monitoring; Noise measurement; Oil insulation; Sensor systems; Vibration measurement;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
