Transformer, a static device is
consists of two inductively coupled windings called primary and secondary. It
transfers energy from a source to a load. A transformer is consists of an iron
core, primary and secondary windings with insulation, oil, main tank and
conservator tank, terminal bushings, silicagel breather, Buchholz relay,
cooling arrangement, tap-changing device, diverter switches and selector
switches. Two types of windings are allowed here-core-type winding and
shell-type winding. Induction regulator is a transformer where the axes of
primary and secondary windings can be rotated with respect to each other to
provide a smooth variation of voltage across the load. Here primary winding is connected to the
supply and secondary winding is connected in series with the load. This series
arrangement is connected across the supply. The primary winding movement can be
done with the help of a rotating core.
The secondary winding is made stationary. Here the voltage induced in
the secondary coil windings depends on the position of the axes of the primary
and secondary windings.
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