- A separately excited 4 - pole, 900 rpm wave wound dc generator has an induced emf of 240V at rated speed and rated field current. When connected to a load, the terminal voltage is observed to be 200V. If the armature resistance is 0.2 Ω and the flux per pole is 10 m Wb, compute the armature current and the number of conductors

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Q: An 6 pole, wave connected armature has 580 conductors and its generated e.m.f is 125 V. If the…

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Q: An 10-pole d.c. generator has 440 armature conductors, and a useful flux of 36 mWb per pole. What…

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A: Given: For the 1st DC generator, EMF, E1=200 V Flux, φ1=40 mWb. Speed, N1=500 rpm.   For the 2nd DC…

Q: A four-pole Shunt connected generator has a lap connected armature with 728 conductors. The flux per…

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Q: Example 3 A short-shunt compound generator delivers a load current of 30 A at 220 V. It has…

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Q: Q-A 6-pole lap-connected dc generator with 480 conductors has armature resistance of 0.06 ohm. If…

A: here we have to find the value of armature resistance for the wave winding.

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Q: Q1/(a) Discuss B-H curve of a ferro-magnetic material.

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Q: Armature windings in ac generators are same as those used in DC machines Select one: True False

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Q: An 8-pole lap-connected armature has 40 slots with 12 conductors per slot generating a voltage of…

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Q: a) What would be the speed of the armature, if flux per pole is 0.007 Wb? b) If the armature is…

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A: In this question,  We need to determine the speed of the motor and torque T?    We know  Torque T=…

Q: 35-pole d.c. shunt generator with wave wound armature having 620 conductors, has to supply a load of…

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Q: A 4 pole generator with wave wound armature has 50 slots each having 28 conductors. The flux per…

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Q: Example 1: A 4 pole, Lap wound separately excited DC. Generator has an armature resistance of 0.40…

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Q: (i) At what speed must the armature rotate to give an induced EMF of 235V is, (ii) What will be the…

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Q: short-shunt connected compound DC generator delivers 219 A to a load at 250 V. Its shunt-field…

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Q: 6 pole, wave connected armature has 520 conductors and its generated e.m.f is 125 V. If the machine…

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Q: Determine the flux per pole for 6 pole dc machine having 240 wave connected conductors, which…

A: Given DC generator  Number of poles P=6Number of conductors Z=240wave connected winding so,Number of…

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A: We will use direct formula for developed voltage , we will put all known parameters to find out…

Q: Armature windings in ac generators are same as those used in DC machines Select one: O True O False

A: Armature is a conductor which carries the current.

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Q: 7) The flux per pole of a four-pole generator is 0.05 wb. It driven at a speed of 1500 rpm. In order…

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Q: A lap connected 6 pole DC generator has an armature conductors of 500 and is driven at 600 rpm. If…

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Q: A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V.…

A: Number of poles p = 8 RPM N = 1200 Flux ϕ = 25 m Wb = 0.025 mWb Voltage E = 440 V

Q: A three-phase Y-connected six-pole winding is installed in 36 slots on a stator. There are 150 turns…

A: Given Data:A three-phase, delta connected having:No. of poles, .No. of turns in each winding, The…

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.