THE Electrical Research Association has recently reported an interesting development which has taken place in connexion with its programme of research on gas blast circuit breakers. Normally the ...

The objective of protective relays and protective schemes is to protect electrical equipment such as transformers, lines, cables, bus bars, etc. during abnormal system conditions. Hence, protective ...

Wherever circuits need protection against current overloads or short circuits, you’ll find circuit breakers. They range from fingernail-sized devices for semiconductor protection to truck-sized ...

In order to further enhance the testing capabilities of its circuit breaker test system Cibano 500, Omicron has launched two new accessories which support tests on circuit breakers with larger ...

Testing your 240V circuit breaker panels is also important to ensure all of the wiring going into the individual breakers has not become loose or broken. “It’s also good to look at it and just make ...

While the number of residential fires has been significantly reduced over the last 20 years, the National Fire Protection Association reports there remain more than 45,000 fires related to electrical ...

This is the second part of a two-part series on the methodologies used to find the short circuit current duties of circuit breakers and fuses. The first part, Short Circuit Current Duties of Circuit ...

ABOUT ten years ago it was found necessary to build short-circuit testing stations in order to find out the true rating for a large switch or current-breaker. In order to find out how a switch will ...

Circuit breakers are manual switches that open under overload conditions. Circuit breakers are manual switches that open under overload conditions. Circuit breakers discussed here are general-purpose ...

Download this article in PDF format. It’s now common to see circuit boards that carry hundreds of amps, especially in intensive data-processing applications, electric vehicles, and ac distribution.