11 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
High voltage
Electrical equipment; Electricity
An electrical system or cable designed to operate between 46kv and 230kv.
High voltage system
Electrical equipment; Electricity
An electric power system having a maximum roo-mean-square ac voltage above 72.5 kilovolts (kv).
High-speed reclosing
Electrical equipment; Electricity
A re-closing scheme where re-closure is carried out without any time delay other than required for deionization.
Hookstick
Electrical equipment; Electricity
A hot stick that is used to operating switches and cutouts.
Pick up ratio
Electrical equipment; Electricity
The ratio of the limiting values of the characteristic quantity at which the relay resets and operates. This value is sometimes called the differential relay.
Pick-up
Electrical equipment; Electricity
A relay is said to 'pick-up' when it changes from the de-energized position to the energised position.
Pilot channel
Electrical equipment; Electricity
A means of interconnecting between relaying points for the purpose of protection.
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