This circuit “3 Phase  Induction Motor Starter” is one such starter. It is a very low-cost but highly reliable gadget, besides being fool-proof. Of all AC motors available, a polyphase induction motor is one that is mostly used in several kinds of industrial drives. this is because it is simple, extremely rugged, low cost, reliable, high efficient and requires little maintenance. Among the induction motors available, a squirrel cage machine is the best. However, such an induction motor can never be started by direct switching, as the motor can never…
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