In a group of 3 motors, one draws 15 A the other draws 40 A, and the third 52 A. What size of the conductor in terms of ampacity may be used for the feeder circuit
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PROBLEM:
In a group of 3 motors, one draws 15 A the other draws 40 A, and the third 52 A. What size of the conductor in terms of ampacity may be used for the feeder circuit?
- 107 A
- 120 A
- 134 A
- 160 A
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- The following sequential statements, when completed, describe the operation of a DC separately-excited generator. Complete each statement by inserting the most appropriate word from among those provided in the word list below. Note: A word cannot be used more than once. There are more words than required.Word list: forces, load, voltage-regulation, speed-regulation, commutator, linearly, exponentially, induces, voltage, constant, property, current, prime-mover, wave, accelerate, alternating, Faraday’s, torque, motor, Ohm’s, direct, higher, rated, Lenz’s, power, brushes, rectified, voltage-drop mechanical, speed, counter, slip, no-load, full-load, lap, rotating, oppose, power, increase, speed, lower, direction, rotating, commutator. Most generators operate at constant speed and the output terminal voltage is adjusted by varying the stator field ______________. When a load is connected across the terminals a load current will be established in accordance with Faraday’s The armature…Hello, please show your correct, complete and neat solution to this problem. Our topic here is about DC Generators and DC Motors. Thanks!The electromagnet shown in the Fig. below is to be used to lift an iron slab of mass M=150 kg. The surface roughness of the iron is such that when the iron and the electromagnet are in contact, there is a minimum air gap of 0.2 mm in each leg. The electromagnet has infinite permeability and the crosssectional area Ac is 25 cm2. The number of turns of N-turn winding is 350 and the winding coil resistance is 3 Ω. Calculate the minimum coil voltage which must be used to lift the iron slab against the force of gravity. Neglect the reluctance of the iron.(Hint: Gravitational acceleration constant is 9.8 m/s2)
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