AUTOMATIC PHASE CHANGER
ABSTRACT:
In
three-phase applications, if low voltage is available in any one or two phases,
and you want your equipment to work on normal voltage, this circuit will solve
your problem. However, a proper-rating fuse needs to be used in the input lines
(R, Y and B) of each phase. The circuit provides correct voltage in the same
power supply lines through relays from the other phase where correct voltage is
available. Using it you can operate all your equipment even when correct
voltage is available on a single phase in the building.
The
circuit is built around a transformer, comparator, transistor and relay. Three
identical sets of this circuit, one each for three phases, are used.
Automatic phase changer that provides correct supply voltage in power lines through relays even when voltage is less in any of the phases. There are many top engineering colleges in pune and engineering colleges in New Delhi to study Engineering course and learn all these
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