single-phase equipment
71Zilog Z80 — One of the first Z80 microprocessors manufactured; the date stamp is from June 1976. Produced 1976 Common manufacturer(s) Zilog …
72SEPTA Regional Rail — Infobox SG rail railroad name=SEPTA Regional Rail logo filename=SEPTA.svg system map size=300 map caption=SEPTA Regional Rail system map logo size=100 old gauge=RailGauge|sg marks=SPAX locale=Delaware Valley start year=1983 end year=present hq… …
73Sidrapong Hydel Power Station — Located at the foot hills of Arya Tea Estate at an altitude of 3,600 ft and 12 km from Darjeeling Town via Bloomfield Tea Estate; Sidrapong Hydel Power Station is the oldest Hydel Power Station or hydroelectric power plant in… …
74Multimeter — 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 …
75Synthetic aperture radar — (SAR) is a form of radar in which the highly directional (and thus very large) rotating antenna used by conventional radar is replaced with many low directivity small stationary antenna positions scattered over some area near or around the target …
76Earthing 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… …
77Arc flash — An arc flash (or arc blast) event is a type of electrical explosion that results from a low impedance connection to ground or another voltage phase in an electrical system. DefinitionAn arc flash is a voltage breakdown of the resistance of air… …
78Ferroresonance — 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… …
79Rectifier — A rectifier is an electrical device that converts alternating current (AC) to direct current (DC), a process known as rectification. Rectifiers have many uses including as components of power supplies and as detectors of radio signals. Rectifiers …
80Railway electrification system — Railway electrification supplies electrical energy to railway locomotives and multiple units so they can operate without having a reciprocating engine of their own.CharacteristicsThe main advantage of electric traction is a higher power to weight …
