250 hp dc motor
[DOC File]Chapter 5 Additional Problems - McGraw Hill
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X5.15 A shunt dc motor is fed from a 250 V dc bus. The motor is operating at 1200 rpm supplying 30 HP to a coupled mechanical load. From an ammeter reading, the line current to the motor is 102 A. It is known that and . Determine (a) the value of rotational losses and (b) the efficiency. (a) (b)
[DOC File]Çankaya Üniversitesi
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A 50 hp, 250-V, 1200rpm shunt dc motor has a rated armature current of 170A and a rated field current of 5A. When its rotor blocked, an armature voltage of 10.2V (exclusive of brushes) produces 170A of current flow, and a field voltage of 250V produces a field current of 5A. The brush voltage drop is assumed to be 2V.
[DOCX File]Swing Gate Operators
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Motor: Brushless DC motor, equivalent to 1 HP AC motor. Gate Speed Controls: Programmable, 16 selectable speeds. Automatic gate position reset system. ... Outputs: 12 V DC and 24 V DC at 250 mA. Connections: Gold contact input connections and automobile-grade connectors.
[DOCX File]Sample Specification - ABB
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The ASD shall be offered from 250 to 4250 HP in similar construction and operation, using the same technology. The ASD shall be rated to operate from input power from 48Hz to 63Hz. Output voltage and current ratings shall match the adjustable frequency operating requirements of standard NEMA design A or NEMA design B motors.
[DOCX File]Motor Drive System Assessment
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Today, generating 1 hp requires a 32 lb motor (30x less than a horse), which is about 4 x 6 inches (12x less than a horse) and costs about $250 per year to power (20x less than a horse). Thus, motors are essential to our modern economy and can be viewed as a primary generator of wealth in modern society.
[DOCX File]Full Submittal - ABB
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The HP ratings provided are for reference only and are based on typical 4-pole motors at nominal voltages (NEC Table 430.250). If full motor torque is required, ensure the drive has a continuous current rating equal to, or greater than the full load amp rating of the motor.
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