Motor Control—3 Phase Figure A-1 Typical motor control circuit. Components: CB, 3-phase circuit breaker with thermal trip units; OL, motor thermal overloads; FU, fuse rated to protect the control circuit; control transformer configured for high- voltage input low-voltage output; Stop, Normally Closed push button; Start, Normally Open push button; M1, low-voltage control coil part of […]
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