- rectifier units
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English-Bulgarian polytechnical dictionary . 2013.
English-Bulgarian polytechnical dictionary . 2013.
Rectifier — 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 … Wikipedia
Cathodic protection rectifier — Cathodic protection rectifiers are AC powered electrical equipment that provide direct current for impressed current cathodic protection systems.Rectifier units are often custom manufactured and equipped with a variety of features, including oil… … Wikipedia
Metal rectifier — Selenium rectifier A metal rectifier is an early type of semiconductor rectifier in which the semiconductor is copper oxide or selenium. They were used in power applications to convert alternating current to direct current in devices such as… … Wikipedia
London Post Office Railway — Mail rail cars on the London Post Office Railway The Post Office Railway, also known as Mail Rail, was a narrow gauge driverless private underground railway in London built by the Post Office with assistance from the Underground Electric Railways … Wikipedia
British Rail Class 80 — Infobox Locomotive name = British Rail Class 80 powertype = Electric caption = roadnumber = E1000; E2001 from 1959 builder = Metropolitan Vickers builddate = 1951; rebuilt 1958 gauge = RailGauge|ussg|lk=on|al=on electricsystem = 25 kV AC… … Wikipedia
WCAM Class — WCAM (W broad gauge ; CA Both DC and AC ; M for both goods and passenger service) is the dual power AC DC series locomotive used by Indian Railways. These locomotives can run under both DC traction and AC traction .All the WCAM locos were made by … Wikipedia
Uninterruptible power supply — A small free standing UPS … Wikipedia
Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… … Wikipedia
locomotive — locomotively, adv. locomotiveness, locomotivity, n. /loh keuh moh tiv/, n. 1. a self propelled, vehicular engine, powered by steam, a diesel, or electricity, for pulling or, sometimes, pushing a train or individual railroad cars. 2. an organized… … Universalium
New Haven EP5 — New Haven EP 5 Power type Electric Builder GE Transportation Systems Build date 1954 Total produced 10 AAR wheel arr. C C Gauge 4 ft 8 1⁄2 … Wikipedia
ER9 electric trainset — For servicing suburban commuter lines, electrified on 25 kV, AC, the Railcar Manufacturing Plant of Riga produced ER9, then ER9p electric trainsets in the 1966 1975 period. The mass production of these trains had began in 1964. Railcar typesThree … Wikipedia