prospective short-circuit current
1Prospective short circuit current — The prospective short circuit current (PSCC) is the highest electric current which can exist in a particular electrical system under short circuit conditions. It is determined by the voltage and impedance of the supply system. It is of the order… …
2Conditional short circuit current — is defined as the value of the alternating current (a.c) component of a prospective current, which a switch without integral short circuit protection, but protected by a suitable short circuit protective device (SCPD) in series, can withstand for …
3Short circuit — A short circuit (sometimes abbreviated to short or s/c) allows a current along a different path from the one intended. The electrical opposite of a short circuit is an open circuit , which is an infinite resistance between two nodes. It is common …
4Circuit breaker — For other uses, see Circuit breaker (disambiguation). An air circuit breaker for low voltage (less than 1000 volts) power distribution switchgear …
5Fault current — A fault current is an abnormal current in an electric circuit due to a fault (usually a short circuit or abnormally low impedance path).In terms of installation wiring, the prospective short circuit current must be known as it influences the… …
6High-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… …
7Fuse (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 …
8ожидаемый ток — 3.4.4 ожидаемый ток: Ток, который протекал бы в цепи, если бы каждый полюс ВДТ или устройства защиты от сверхтоков (если оно есть) был бы заменен проводником с пренебрежимо малым полным сопротивлением. Примечание Ожидаемый ток может быть… …
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9Electricity distribution — is the penultimate stage in the delivery (before retail) of electricity to end users. It is generally considered to include medium voltage (less than 50 kV) power lines, electrical substations and pole mounted transformers, low voltage (less than …
