PCORE Electric Company, Inc. manufactures capacitance graded bushings and related components including 15 kV-69 kV PRC® bushings, 25 kV-500 kV POC® bushings, 25 kV GSU bushings, PCORE® test terminal, ...

Why is understanding high-voltage oil-filled transformer bushings so critical? High-voltage power transformers are an essential component of our nation's electric grid infrastructure. Bushings are the ...

Last month's column explained that AC current flowing through an inductance reaches its peak amplitude after the voltage. Lagging current is characteristic of an inductive circuit. Capacitive circuits ...

Michael Krüger examines new diagnostic tools for power transformers. Due to ever-increasing pressure to reduce costs, the power industry is forced to keep old power facilities in operation as long as ...