fault impedance

См. также в других словарях:

• Fault 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… …   Wikipedia

• Object-relational impedance mismatch — The object relational impedance mismatch is a set of conceptual and technical difficulties that are often encountered when a relational database management system (RDBMS) is being used by a program written in an object oriented programming… …   Wikipedia

• ГОСТ Р МЭК 60050-826-2009: Установки электрические. Термины и определения — Терминология ГОСТ Р МЭК 60050 826 2009: Установки электрические. Термины и определения оригинал документа: ( длительный ) допустимый ток ((continuous) current carrying capacity ampacity (US)): Максимальное значение электрического тока, который… …   Словарь-справочник терминов нормативно-технической документации

• Earthing system — In sulvent systems, an earthing system defines the electrical potential of the conductors relative to that of the Earth s conductive surface. The choice of earthing system has implications for the safety and electromagnetic compatibility of the… …   Wikipedia

• Earth leakage circuit breaker — An Earth Leakage Circuit Breaker (ELCB) is a safety device used in electrical installations with high earth impedance to prevent shock.PurposeMany electrical installations have a relatively high earth impedance. This may be due to the use of a… …   Wikipedia

• Tension Transitoire de Retablissement — Tension transitoire de rétablissement Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux… …   Wikipédia en Français

• Tension Transitoire de Rétablissement — Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux bornes d un appareillage électrique lorsqu… …   Wikipédia en Français

• Tension transitoire de rétablissement — Illustration d une TTR après coupure d un courant alternatif. La tension transitoire de rétablissement (TTR, ou TRV de l anglais Transient Recovery Voltage) est la tension électrique qui se rétablit aux bornes d un appareillage électrique lorsqu… …   Wikipédia en Français

• Multimeter — A digital multimeter A multimeter or a multitester, also known as a VOM (Volt Ohm meter), is an electronic measuring instrument that combines several measurement functions in one unit. A typical multimeter may include features such as the ability …   Wikipedia

• Time-domain reflectometer — A time domain reflectometer (TDR) is an electronic instrument used to characterize and locate faults in metallic cables (for example, twisted wire pairs, coaxial cables). The equivalent device for optical fiber is an optical time domain… …   Wikipedia

• Megger Group Limited — Type Private Industry Electrical power Founded 1889 Found …   Wikipedia