Answer / prof. dr. k. manjunath

The answer is (c) copper losses. The copper losses I*I*R
losses, they varies with square of load current

Answer / ashish

c

how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

6 Answers   Bosch, NMDC,

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hi, is there a difference in choosing bus bar for DC or AC ,,if there can anyone help me about. thanks

1 Answers  

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what is the disadvantage of lagging power factor & why ?

2 Answers  

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Why corona takes place?

4 Answers   L&T,

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For 132 KV line, PT or CVT which is prefered for measuring & protection? is there any IS or IEE standard available?

1 Answers  

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what is the instataneous value of voltage in a 3-phase balanced star connected circuit?

6 Answers  

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

0 Answers  

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why we connect the capacitor bank in star , not in delta in any system

2 Answers  

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The power supplied to a 33microF capacitor from a 120V, 60Hz source will be

0 Answers  

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

0 Answers   ISRO,

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why h parameter are called as hybrid parameter?

0 Answers  

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Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 Answers  

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