Devices that raise or lower voltage between circuits by magnetic induction, from large power transformers to distribution, current, voltage and grounding transformers. A technology belongs here when its cited article describes a transformer or a particular type of transformer. It excludes voltage regulators and switchgear. Transformers carry electrical power between circuits at different voltages without moving parts, from large units at a power station to the small units on a street, and some measure current or voltage for protection. A device is placed here when the cited article describes a transformer type.
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Transformers
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Wikipedia: Transformer
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In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.
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In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.
View the SourceWikipedia: Current transformer
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A current transformer (CT) is a type of transformer that reduces or multiplies alternating current (AC), producing a current in its secondary which is proportional to the current in its primary.
Wikipedia: Voltage transformer
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Voltage transformers (VT), also called potential transformers (PT), are a parallel-connected type of instrument transformer.
Wikipedia: Grounding transformer
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A grounding transformer or earthing transformer is a type of auxiliary transformer used in three-phase electric power systems to provide a ground path to either an ungrounded wye or a delta-connected system.
Distribution transformer (Wikipedia)
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A distribution transformer or service transformer is a transformer that provides a final voltage reduction in the electric power distribution system, stepping down the voltage used in the distribution lines to the level used by the customer.
Wikipedia: Tap changer
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A tap changer is a mechanism in transformers that allows for variable turn ratios to be selected in distinct steps.
Solid-state transformer - Wikipedia
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A solid-state transformer (SST), power electronic transformer (PET), or electronic power transformer is an AC-to-AC converter, a type of electric power converter that replaces a conventional transformer used in AC electric power distribution.
Wikipedia: Quadrature booster
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A phase angle regulating transformer, phase angle regulator (PAR, American usage), phase-shifting transformer, phase shifter (American usage), or quadrature booster (quad booster, British usage), is a specialised form of transformer used to control the flow of real power on three-phase electric transmission networks.
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