Answer / den

WE CAN'T CALCULATE THE POWER LOSE BECAUSE THE CKT. IS OPEN
AND THERE IS NO FLOW OF CURRENT.**** thanks

Answer / den jagus

we can't Calculated the power lose of an open ckt. Because
there is flow current.**** THANKS

Answer / nur.asidik

we can calculate no load loss of TR, but you need to know impedance of TR

Answer / k.prakashchandra

Short the LV side ,increase voltage on HV ,till you get the rared current. The percentage of this voltage against rated voltage is % impedance . if you connect a watt meter you get copper losses . With open circuit apply rated voltage ,to measure the iron losses with a watt meter .

Sir We have a REF relay connected to 10MVA(Y-Y) Transformer.on External earth fault REF relay trips along with earth fault relay.The REF relay has no complant as we tested relay.Why is it happening?

3 Answers   KSEB,

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any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?

0 Answers  

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Up to how much limit of HP of electric motor the Star- Delta Starter can be used ?

1 Answers  

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which connection is safer series or parallel?usually which connection we prefer at home?

5 Answers  

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sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance

0 Answers  

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What is LOP Sensor in DG??????

7 Answers   Emerson,

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can any one suggest paper presentation topies for electrical engg?

0 Answers  

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What is a transductor ?

2 Answers  

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why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation

0 Answers  

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how can the active power and reactive power of an alternator be controlled?

6 Answers  

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what is tpmo switch

3 Answers  

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EARTH AND NEUTRAL ARE JOINTED OR NOT?

7 Answers  

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