Electricity

Electricity

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

Industry: Utilities

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Electricity

power transformer

Electrical equipment; Electricity

A large transformer, generally larger than 1,000 kVA in capacity.

point-to-point protocol (PPP)

Electrical equipment; Electricity

PPP is the internet standard for serial communications. PPP defines how modem connection exchanges data packets with other systems on the internet.

point-to-point tunneling protocol (PPTP)

Electrical equipment; Electricity

PPTP is a protocol that allows secure transmission of data in TCP/IP packets. PPTP protocols are used to carry secure communications over Virtual Private Networks that use public phone lines.

prohibited approach boundary

Electrical equipment; Electricity

An approach limit at a distance from an exposed live part within which work is considered the same as making contact with the live part.

protected zone

Electrical equipment; Electricity

The portion of a power system protected by a given protection system or a part of that protection system.

protection equipment

Electrical equipment; Electricity

The apparatus, including protection relay, transformers and ancillary equipment, for use in a protection system.

A relay designed to initiate disconnection of a part of an electrical installation or to a warning signal, in the case of a fault or other abnormal condition in the installation. A protection relay ...