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
Description:
Portable encapsulated autowound transformers providing a 115Vac supply
via a standard 3-pin US style socket. 230Vac input, 115Vac output 50/60HzEncapsulated in plastic housingMounting holes for permanent installation if requiredOutput fuse protectedInput connection: 2m 3-core cable, 13A (BS1363) plugOutput ...
Description:
From Block, these short circuit proof encapsulated autowound
transformers allow step up or step down of mains voltage at 50/60 Hz. Featuring easy to install mounting holes, screw terminal connections with strain relief for connecting leads, a robust and reliable ...
Description:
Range of high efficiency low heat loss 3
phase auto transformers. Common input and output windingsEasy installation-mounting holes providedScrew terminal connectionsReverse operation posibleTransformers tested to EN 61558-2-13BLOCKIMPEX vacuum impregnation.
Description:
Range of high efficiency low heat loss 3
phase auto transformers. Common input and output windingsEasy installation-mounting holes providedScrew terminal connectionsReverse operation posibleTransformers tested to EN 61558-2-13BLOCKIMPEX vacuum impregnation.