Title :
Effect of surge testing on unimpregnated ground insulation of VPI stator coils
Author :
Clark, M.K.W. ; Snopek, D.A. ; Younsi, A.K. ; Dymond, J.H.
Author_Institution :
GE Canada Inc., Peterborough, Ont., Canada
fDate :
6/23/1905 12:00:00 AM
Abstract :
The IEEE 522 guide for testing turn-to-turn insulation in form wound coils for alternating-current machines is presently under working group review, with the intent to eliminate problems in interpretation and application. The guide is written for the testing of fully processed coils, while the motor industry uses the test guide for pre-impregnated VPI (vacuum pressure impregnated) coils wound in the stator core. The impact of applied surge voltages on the ground insulation was investigated using finite element analysis of stress and testing on actual coils. This paper presents data on surge testing of turn and ground insulation, and discusses some ideas on the use of surge voltages as a quality assurance test
Keywords :
AC machines; IEEE standards; coils; finite element analysis; insulation testing; machine testing; stators; surges; IEEE 522 guide; VPI stator coils; alternating-current machines; applied surge voltages; finite element analysis; form wound coils; ground insulation; pre-impregnated VPI coils; quality assurance test; stator core; surge testing effect; turn insulation; turn-to-turn insulation testing; unimpregnated ground insulation; vacuum-pressure impregnation; Coils; Impulse testing; Industrial power systems; Insulation testing; Manufacturing; Power engineering and energy; Stators; Surges; Voltage; Wounds;
Conference_Titel :
Petroleum and Chemical Industry Conference, 2001. IEEE Industry Applications Society 48th Annual
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-7183-6
DOI :
10.1109/PCICON.2001.960549
