ungrounded circuit

ungrounded circuit
незаземленная линия

English-Russian dictionary of geology. 2011.

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  • 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

  • Ferroresonance — The phenomenon of Ferroresonance is the occurrence of an unstable high voltage, typically on 3 phase electrical systems which only occurs under specific conditions. The nature of the overvoltage can cause the failure of equipment.Ferroresonance… …   Wikipedia

  • Transient Recovery Voltage — A transient recovery voltage (or TRV) for high voltage circuit breakers is the voltage that appears across the terminals after current interruption. It is a critical parameter for fault interruption by a high voltage circuit breaker, its… …   Wikipedia

  • NEMA connector — Twist lock connector redirects here. For the device used in intermodal shipping, see Twistlock. Ungrounded and grounded power plugs …   Wikipedia

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  • Residual-current device — A two pole residual current device A Residual Current Device is a generic term covering both RCCBs and RCBOs. A Residual Current Circuit Breaker (RCCB) is an electrical wiring device that disconnects a circuit whenever it detects that the… …   Wikipedia

  • High voltage — The term high voltage characterizes electrical circuits, in which the voltage used is the cause of particular safety concerns and insulation requirements. High voltage is used in electrical power distribution, in cathode ray tubes, to generate X… …   Wikipedia

  • Panel switch — The panel switching system was an early type of automatic telephone exchange, first put into urban service by the Bell System in the 1920s and removed during the 1970s. The Panel and Rotary systems were developed in parallel by Bell Labs before… …   Wikipedia

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  • Aircraft engine controls — provide a means for the pilot to control and monitor the operation of the aircraft s powerplant. This article describes controls used with a basic internal combustion engine driving a propeller. Some optional or more advanced configurations are… …   Wikipedia

  • Dipole antenna — A schematic of a half wave dipole antenna connected to an unbalanced coaxial cable. Better practice is to connect the balanced dipole to the unbalanced line with a balun. A dipole antenna is a radio antenna that can be made of a simple wire, with …   Wikipedia


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