An 8-pole d.c. machine of 1200kW, 600V, 500 rpm and the average value of the reactance voltage per coil is 6.6V. the machine is lap connected of 648 conductor and each coil has two turns, the axial length of the compole 29 cm and the air gap is 0.8 cm, the armature diameter is 0.35m and the ratio (Bmax/Bav) = 1.5. Find the interpole m.m.f.

An 8-pole d.c. machine of 1200kW, 600V, 500 rpm and the average value of the reactance voltage per coil is 6.6V. the machine is lap connected of 648 conductor and each coil has two turns, the axial length of the compole 29 cm and the air gap is 0.8 cm, the armature diameter is 0.35m and the ratio (Bmax/Bav) = 1.5. Find the interpole m.m.f.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter12: Power System Controls

Section: Chapter Questions

Problem 12.4P

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Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.

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