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5.3) A 50Hp, 250v shunt motor moves a load that demands constant torque regardless of speed, the armature resistance is 0.04Ω, it is known that at full load the current of armature is 160A a) If the flux is reduced by 10% of the initial value, will the magnitude of the armature current change? b) Will the velocity value change? If so how much.

5.3) A 50Hp, 250v shunt motor moves a load that demands constant torque regardless of speed, the armature resistance is 0.04Ω, it is known that at full load the current of armature is 160A a) If the flux is reduced by 10% of the initial value, will the magnitude of the armature current change? b) Will the velocity value change? If so how much.

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)
10th Edition
ISBN:9781337399128
Author:Russell E. Smith
Publisher:Russell E. Smith
Chapter17: Commercial And Industrial Air-conditioning Control Systems
Section: Chapter Questions
Problem 6RQ
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5.3) A 50Hp, 250v shunt motor moves a load that demands constant torque regardless of
speed, the armature resistance is 0.04Ω, it is known that at full load the current
of armature is 160A
a) If the flux is reduced by 10% of the initial value, will the magnitude of the armature current change?
b) Will the velocity value change? If so how much.

Vt=250V ra = 0.040hm Ea la =160A
Transcribed Image Text:Vt=250V ra = 0.040hm Ea la =160A
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