22 Terms
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Electricity
A database referring to the existence of a flow of electric charge.
Industry: Utilities
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Electricity
Underground utility structure
Electrical equipment; Electricity
An enclosure for use underground that may be either a handhole or manhole.
Unidirectional unit
Electrical equipment; Electricity
Allows inputs to be measured in one direction only. The stated output range indicates the minimum and maximum input levels.
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.
Universal bushing well
Electrical equipment; Electricity
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.
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22 Terms
