The costliest piece of equipment in a substation is the Power Transformer. Therefore, a good maintenance program is required to keep these power transformers operating reliable. Over the past few ...

Out-of-step protection is a critical component of modern power system protection schemes—its importance has grown ...

Keywords: Earthquake engineering, Power Transformers, Seismic Protection, Base Isolation, Bushings Protection, Friction Pendulum Isolation, Rubber Bearing Isolation, Shake Table Experiments, Design ...

Electrica signature analysis (ESA) uses the magnetic field in the air gap of an electrical machine to evaluate power quality conditions. Dry and oil transofrmer types are subject to problems ...

Following successful final acceptance testing at the Siemens transformer factory in Nuremberg, the world’s first 800-kV transformer for extra-high-voltage DC transmission systems HVDC is ready for ...

Mitsubishi Electric, one of the world's leading manufacturers of large-scale electrical and HVAC systems has admitted to fraudulently conducting quality assurance tests on its transformers—for decades ...