Title :
Experience with dielectric diagnosis of high voltage motors in service
Author :
Rao, B. Nageshwar ; Mallikarjunappa, K. ; Keri, C.D. ; Moorching, S.N.
Author_Institution :
Central Power Res. Inst., Bangalore, India
Abstract :
Field testing and extensive laboratory investigations indicate that periodic diagnostic tests such as tan delta, capacitance, and IDE (integrated discharge energy) give useful information on the relative condition of winding insulation. Each test parameter provides particular information regarding the condition of stator insulation should be monitored and as many diagnostic parameters as possible should be monitored to obtain reliable and complete information regarding the state, quality, and trend in ageing of the insulation. A strong correlation has been shown to exist between tan delta and capacitance tip-ups
Keywords :
dielectric losses; electric breakdown; insulation testing; life testing; machine insulation; machine testing; stators; IDE; capacitance; capacitance tip-ups; dielectric diagnosis; high voltage motors; integrated discharge energy; periodic diagnostic tests; stator insulation; tan delta; winding insulation; Condition monitoring; Dielectric loss measurement; Dielectrics and electrical insulation; Inspection; Insulation testing; Maintenance; Stator windings; Synchronous motors; Thermal stresses; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378910
