What is a slash-voltage-rated breaker?
Some circuit breakers have dual voltage ratings stamped on them, such as 240/120V or 480/277V. These breakers are known in…
Some circuit breakers have dual voltage ratings stamped on them, such as 240/120V or 480/277V. These breakers are known in…
Negative sequence overvoltage protection [ANSI 59Q] is used for detecting phase voltage unbalance or reverse phase condition. Variation of individual…
Negative sequence overvoltage protection is used for protection of service main, motor circuits, sensitive loads for conditions such as reverse…
Grounding transformers are used in utility and industrial distribution systems to ‘create a grounded system’ from an otherwise ungrounded source.…
There are some regions of the world such as North America, where polarized receptacles are used, while other parts of…
Control circuit for medium and high voltage circuit breakers have protective relay contacts to trip and close circuit breaker. Control…
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, ground plate…
Constructing substation ground grid is the principal method of achieving low substation to remote ground or earth resistance. Ground grid…
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, metallic plate…
Different means of achieving low earth or ground resistance are to drive ground rods, bury wire, copper strip, metallic plate…