Historical
IEEE C57.138-1998 (R2005)
IEEE Recommended Practice for Routine Impulse Test for Distribution Transformers
General test procedures for performing routine quality control test that is suitable forhigh-volume, production line testing. Transformer connections, test methods, circuit configurations,and failure detection methods are addressed. This recommended practice covers liquid-immersed,single- and three-phase distribution transformers.
Institute of Electrical and Electronics Engineers [ieee]