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 ...

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 ...

Violations of the National Electrical Code (NEC) regarding transformers are often encountered while performing electrical plan reviews. There are far too many NEC requirements to explain in just one ...

Infrastructure firm Prolec and utility equipment firm Ubicquia have combined efforts to design and market what they call a fully integrated smart transformer. The new transformers deliver real-time ...

You can purchase test equipment that will allow you to examine the loop gain and loop phase properties of an operating feedback loop and, that purchased equipment will deliver useful results over a ...

Flammable insulating fluids and electrical faults pose significant fire and explosion risks to transformers. These hazards can result in catastrophic damage, disrupt business continuity, and cause ...

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 ...