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Ground (electricity) — In electrical engineering, ground or earth may be the reference point in an electrical circuit from which other voltages are measured, or a common return path for electric current, or a direct physical connection to the Earth. A typical earthing… … Wikipedia
Ground and neutral — For uses of the term ground or earth in electricity but not in the context of mains wiring, see ground (electricity). Since the neutral point of an electrical supply system is often connected to earth ground, ground and neutral are closely… … Wikipedia
High Voltage Isolation and Ground Potential Rise — This article outlines the principles of High Voltage Isolation (HVI) and Ground Potential Rise (GPR). Most often questions of concern arise to anyone associated with the use of any communication signal (analog or digital) via a metallic or fiber… … Wikipedia
High-voltage direct current — HVDC or high voltage, direct current electric power transmission systems contrast with the more common alternating current systems as a means for the bulk transmission of electrical power. The modern form of HVDC transmission uses technology… … Wikipedia
High Voltage Protection and Isolation of telecommunications circuits and SCADA circuits to and from Hydro Sub Stations — High Voltage Protection and Isolation of telecommunications circuits and SCADA circuits to and from Hydro Sub StationsIn order to protect the continuous service of important telecommunications and control circuits to and from Hydro Sub Stations,… … Wikipedia
напряжение относительно земли при замыкании на землю — Напряжение между рассматриваемой точкой и относительной землей для данного места замыкания на землю и данного значения тока замыкания на землю. [ГОСТ Р МЭК 60050 195 2005] EN voltage to earth during an earth fault voltage between a specified… … Справочник технического переводчика
Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear … Wikipedia
Electric shock — Electrocute redirects here. For the band, see Electrocute (band). An electric shock can occur upon contact of a human s body with any source of voltage high enough to cause sufficient current through the muscles or hair. The minimum current a… … Wikipedia
AC power plugs and sockets — See also: Industrial and multiphase power plugs and sockets Plugs and sockets may sometimes combine male and female contacts, but t … Wikipedia
Fuse (electrical) — A miniature time delay fuse used to protect electronic equipment, rated 0.3 amperes at 250 volts. 1.25 inches (about 32 mm) long … Wikipedia
Pre-charge — of the powerline voltages in a high voltage DC application is a preliminary mode which current limits the power source such that a controlled rise time of the system voltage during power up is achieved.When high voltage systems are designed… … Wikipedia
