Electricity

Electricity

A database referring to the existence of a flow of electric charge.

Industry: Utilities

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Electricity

unit electrical relay

Electrical equipment; Electricity

A single relay that can be used alone or in combinations with others.

unit protection

Electrical equipment; Electricity

A protection system that is designed to operate only for abnormal conditions within a clearly defined zone of the power system.

This 200 amp rated component is used as part of a system to terminate medium voltage cables to transformers, switchgear and other electrical equipment. Universal Bushing Wells are manufactured by the ...

unrestricted protection

Electrical equipment; Electricity

A protection system which has no clearly defined zone of operation and which achieves selective operation only by time grading.

Utility Supply Management Alliance (USMA)

Electrical equipment; Electricity

A utility industry conference held annually that is focused on the supplier/customer relationship.

vacuum circuit breakers

Electrical equipment; Electricity

Circuit breakers, normally applied at medium voltages, that use vacuum interrupters to extinguish the electrical arc and shut-off flowing current.

vacuum interrupter

Electrical equipment; Electricity

A sealed "bottle" containing contacts of a switch inside a very high vacuum. When the contacts are parted in the vacuum, as there is no gas in the bottle to ionize, the current flow is quickly ...