Answer Posted / raul

when we increase the load, the speed and hence the voltage
decreases and thereby flux also decreases, to maintain d
flux at a constant value, more current is drawn from d
source............

does any one know where we can purchase insulation oil for high voltage oil filled cables

2300

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What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1585

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In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

1969

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we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?

1500

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can any tell me why slope 40% and 80% is calculated in differential protection?

1855

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What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks

1867

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What happens to voltage when current through the inductor is constant?

1100

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Why is the air gap between the pole pieces and the armature kept very small?

1356

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What are the types of the glands and difference between single and double compression type of cable Glands.

2044

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Can we test the alignment of End shield and stator of turbogenerator without rotor insertion? Also how to fix maintain the alignment at site installation?

2299

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what is doid

2776

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What aturn on methods of scr?

1142

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What is the actual meaning of thermal power efficiency ?

2092

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15hp motor wound by 0.9mm & 0.95mm magnet wire. at no load test it draw 4.2A current. Another motor with same condition draw 9.2A current. How can that occur? pls help

1534

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explain working principle of earth leakage relay

3664

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