Answer / kundan kumar

no- load losses of the transformer depend on flux density
of the core and frequency.no load loss is equql to the
summation of hysterisis loss and eddy current loss.

Answer / arb555

By no load test, i.e

The O C test using w/m , a/m & v/m.

The W/M reading gives no load losse, W

What do you understand by oldham's coupling ?

0 Answers   Godrej,

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what is the meaning of the parameters labeled on the surge arrestor like 150/20 ???

3 Answers  

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Why in USA supply voltage parameters(230V,60Hz)are different,is there any advantage please brief.

1 Answers   APC, DRJ ARDE,

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what is meant by armature reaction?

13 Answers  

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at which voltage level arcing ground is occurs ??????????

0 Answers   TATA,

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why are use star delta startor.

4 Answers  

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how to calculate power consumption in slip ring motor at different step

0 Answers   ABB,

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There is 15 KVA UPS using for single phase load.And 30 batteries of 12 V, 100 Ah are connected in series. Load is taking 15 A current.What will be the back up power for this UPS on same load?

1 Answers   BS, Dynamic Software,

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please can i know about total harmonic distortion and how i can calculate it and if anyone can help me to find any program to help me to calculate THD?? please need it

1 Answers  

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how starting current in motor is reduced in case of motor in star connection.

4 Answers   Adhunik,

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I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

0 Answers  

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I have one ct of ratio 3000-2000/1 Amp its knee point voltage mentioned on name plate is 500-333/30mA-50mA at Vk/2. in secondary box there is three terminal named 1S1, 1S2, 1S3 then on which terminal obtained the knee point voltage ie 1S1-1S2 OR 1S1-1S3 & also specify the knee point voltage for the ratio 3000 from name plate.

0 Answers  

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