Answer Posted / arun.giit

as all the losses is in the form of power;and in transformer
iron loss is directly propertional to voltage(V) &copper
loss is propertional to current(I).it is not depend upon
powerfactor,so it's rating is in KVA.

in 1-phase 230v,how in 3-phase 440v. in each phase in between 230v.

2821

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What technology is used in latest generators?

2077

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why on delay timer used for fully automatic star delta starter?

1675

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What is mean by hot and cold loop testing? What is the difference between them?

1100

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What is vacuum circuit breaker.define with cause and where be use it device?

1287

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how much flux density of CRNO core

2984

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Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,

2890

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how to calculate micom relay earth falt time and current sertting

2470

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What is the Minimum winding resistance of motors ( small & big)? referance range

2285

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How to use earthing on shipments.

1423

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for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations

2073

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why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

2183

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1 hp is equal to how much watt?

1244

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we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?

1725

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we have two motors 1250kW,6.6kV to be coupled on the same shaft ,so please provide assistance for their synchronisation.

2052

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