Rosslyn, Va.-based National Electrical Manufacturers Association (NEMA) recently announced the initiation of the NEMA Premium Efficiency Transformer program, which will help utilities, commercial ...

Bob is a service technician who is well trained and nationally certified. However, he sometimes suffers from the same confusion that all technicians occasionally do — the facts that he gathers may or ...

Editor's Note: Here's another take on the transformerless AC line power supply, which finds use in some well-insulated, low-power devices. Our technical reviewer pointed out that C ac should be an ...

Current transformers can perform circuit control, measure current for power measurement and control, and perform roles for safety protection and current limiting. They can also cause circuit events to ...

The purchase is part of the company's efforts to have enough transformers for stepping down electricity and smart meters to ...