Differential protection is best understood as a fault control philosophy rather than a component category. The relay itself is secondary to the scheme it enforces. Once a zone is defined, the system ...

A motor protection relay safeguards electric motors by detecting thermal stress, phase imbalance, stall, and abnormal ...

Abstract: A protection strategy utilizing agent technology for adaptive relaying of Directional Overcurrent Relays (DOCRs) has been proposed in this paper. In this approach, communication plays a ...

A Relay Protection Tester is designed to simulate electrical quantities such as current, voltage, frequency, and phase, ...

Abstract: Busbar is the main terminal in switchgear that connecting all feeders. The highest short circuit current occurs on the busbar. Thus, it needs to be considered to provide a busbar protection ...

As we head into the colder months, HVACR technicians need to understand the fundamentals of defrost control board operation. While there are many types of defrost control boards on the market, they ...