a power failure,a manual starter motor automatically restarts when the power returns
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- At standstill condition, the back emf is zero, so the motor can be safely turned ON without a starter. Select one: OTrue O FalseThree - wire control prevent the restarting of machinery when power is restored.You’re powering up a new motor in a brushless motor control system. After moving the shaft of the motor lightly left to right, the motor reverses direction and runs away. What’s the problem? A. Power transistor failureB. Wrong motor typeC. Reversed tachometerD. Reversed hall-effect sensor
- A motor may be controlled remotely or automatically by using aDraw a Start – Stop Full Voltage 3-phase AC Motor Starter circuit. The power circuit should be 220 V and the control circuit is 220V. Assume that the working voltage of the magnetic contactor is 220 V.A starter turns very slowly and has excessive cranking current draw. When removed from the vehicle and bench tested, the starter spins normally and current draw is within specifications. Technician A says poor battery connections may be the cause. Technician B says an internal engine problem may be the cause. Who is correct?
- If we give a synchronous motor's stator only one volt of power to get it started, what will happen to the motor? Provide a succinct explanation in just one (1) phrase for your answer.A large DC motor is started without starter. True or FalseExplain how does the current will be reduced during the starting of the motor.
- electrical machines Explain how the experiment is done by drawing the connection diagram of the alternator idle test.Instruction: Design a dc motor reverse and forward circuit using a single switch. Main Components: DC Motor Toggle Switch DC Power Supply/ Battery Additional Components: (Please search the internet for additional components)10.a. A normal commutator will have which one of the following colors where the brushes contact thecommutator?A. Slate-grayB. Chocolate-brownC. Auburn-brownD. Black 10.b. If an electronic control system is starting a motor, it will keep start-up current within limits by usingA. an acceleration ramp.B. coast-up system.C. a rheostat and a relay.D. a pulsed diode control.
