Autotransformers

An autotransformer, also known as a step-down transformer, is an electrical transformer with only one winding. The winding has at least 3 taps where electrical connections are made. Autotransformers have the benefit of being small, light and cheap compared to dual-winding transformers.
Autotransformers are used to step up or step down voltages in the 110V-115V-120V range and 220V-230V-240V range. This allows electrical equipment from the US to be fed from higher European voltage.
Applications
• Can be used as a method of soft starting induction motors
• In UK railway applications
• In audio applications, tapped autotransformers are used to adapt speakers to constant-voltage distribution systems
• Power applications to interconnect systems operating at different voltages
• Special autotransformers are used on rural power distribution lines so that customers further away receive the same average voltage as ones nearer to the source

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Omschrijving Prijs Primary Voltage Rating Secondary Voltage Rating Power Rating Construction Mounting Type Core Type Termination Type Length Dimensions Width Depth Minimum Operating Frequency Maximum Operating Frequency Minimum Temperature
RS-stocknr. 347-6668
FabrikantnummerCM2000/A/US
155,27 €
Each
Aantal stuks
230V ac 115V ac 2kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
RS-stocknr. 436-8883
FabrikantnummerCM3000/A/US
190,54 €
Each
Aantal stuks
230V 114.1V ac 3kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
RS-stocknr. 347-6652
FabrikantnummerCM1000/A/US
114,97 €
Each
Aantal stuks
230V ac 114.2V ac 1kVA - - Bobbin - 205mm 205 x 195 x 260mm 260mm 190mm - - -
RS-stocknr. 436-8877
FabrikantnummerCMA30K/FM0
655,18 €
Each
Aantal stuks
380 V, 400 V, 415 V 380 V, 400 V, 415 V 30kVA - - Bobbin - 420mm 420 x 350 x 260mm 350mm 260mm - - -
RS-stocknr. 436-8861
FabrikantnummerCMA10K/FM0
457,63 €
Each
Aantal stuks
380 V, 400 V, 415 V 380 V, 400 V, 415 V 10kVA Enclosed Floor Standing - - 420mm 420 x 270 x 325mm 270mm 325mm 50Hz 60Hz -