Methodologies for determination of the steady-state winding hottest-spot temperature in dry-type distribution and power transformers with ventilated, sealed, solid cast, and encapsulated windings built in accordance with IEEE Std C57.12.01-1998…
Theory, application of phase-shifting transformers, and the difference of specification and testing to standard system transformers are described. Various types of phase-shifting transformers and how to select the optimal design…
Reaffirmed September 22, 2005. Guidelines are provided for the selection of suitable sound reduction methods in oil-immersed power transformers and shunt reactors over 500 kVA. Sound-producing sources within transformers and…
General test procedures for performing routine quality control test that is suitable for high-volume, production line testing. Transformer connections, test methods, circuit configurations, and failure detection methods are addressed. This…
This guide includes guidelines for following: insulating oil maintenance and diagnostics, oil reclamation, testing methods for the determination of remaining insulation (paper) life, and upgrades of auxiliary equipment such as…
This standard describes the service conditions, classifications and voltage ratings, design tests with corresponding performance characteristics, conformance tests, and certification test procedures for station, intermediate, distribution and secondary class arresters.…
The application of gapped silicon-carbide surge arresters to safeguard electric power equipment against the hazards of abnormally high voltage surges of various origins is addressed. General considerations with respect to…
Metal-oxide surge arresters designed to repeatedly limit the voltage surges on 48 Hz to 62 Hz power circuits by passing surge discharge current and automatically limiting the flow of system…
