Answer Posted / masoom raza

if rectifier is half-wave type then there is difference . in case of dc machine the output will same like full-wave rectifier.as we know that inside dc machine emf induced as sinusoidal but due to commutator the output becomes like full-wave rectifier type.

what will happen if the prime mover on the field excitation of the on-coming generator fails?Explain.

5534

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A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.

1917

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Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

5099

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How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

2132

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how a flip flop can be used as a latch?

1981

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how to calculate the lightning arrester conductor @ no of earth pits required

2115

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WHAT IS counter flux IN CT?

1943

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how diside ct mf exmp.200/5 ct

2177

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a 230v transformer with step down ratio 19:1.it has 2000turns on primary and rated 25va calculate max primary current no of secondary turns volts/turn

1538

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how to synchronize 3 phase slip ring induction motors of different ratings.

2292

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Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?

1203

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How to select a contactor? How many types of contactors are available

3265

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who can measure the size of power cable?

2147

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What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

1911

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define hysteresis loss, eddy current loss and windage loss

1983

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