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If a dc motor is operated in 4 quadrants what is the mode dof operation in each quadrant?
Wiki User
∙ 14y ago
The 4 Quadrants are;
1 FORWARD DRIVE
2 REVERSE BRAKING
3 FORWARD BRAKING
4 REVERSE DRIVE
Wiki User
∙ 14y ago
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What are the methods of stopping a synchronous motor?
My experience with synchronous motors is in the operation of large rotating mills. In that case, the motors are decoupled from the load by means of an air-clutch, and main power is removed from the rotor and the stator. The motor coasts to a stop. If the motor is operated on a variable speed drive, it could be decelerated to very low speed before removing power.
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What are the methods of stopping a synchronous motor?
My experience with synchronous motors is in the operation of large rotating mills. In that case, the motors are decoupled from the load by means of an air-clutch, and main power is removed from the rotor and the stator. The motor coasts to a stop. If the motor is operated on a variable speed drive, it could be decelerated to very low speed before removing power.
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If the motor is operated from a three phase three wire distribution system the motor will not need a neutral wire.
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Build a small battery-operated vibrator.
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