WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  

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what is transformer

7 Answers   Hofincons,

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What is meant by cold loop test in instrument

0 Answers   Transnet,

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What is the drawback of static coefficients?

0 Answers  

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We all have seen transmission and Distribution lines In transmission lines the voltage is high and current is low(to reduce I^2r loss) and in distribution lines voltage is low but current is high however the size of transmission wires is bigger than that of distribution wires even though the amount of current carried by the distribution lines is more than that of transmission lines why?

4 Answers  

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what is the meaning of powerfactor

6 Answers   NTP,

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I did oil BDV test of 1600 KVA trafo 20KV/400V as per IEC 156. Result is 1) 58 KV 2) 58 KV 3)40 KV 4) 50 KV 5) 58 KV 6) 18 KV. Avr is 47 KV. Can we say oil is still ok even in the 6th test BDV is 18 KV ?

1 Answers  

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at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?

1 Answers  

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* Signal transmission in sky wave propagation is due to ? a) Reforction of wave b) Reflection of wave c) Pierus through Inosphere d) None and Reason for this is????

2 Answers  

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define superposition theorem thevnin theorem ,norton theorom?

0 Answers  

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EXPLAIN THE TRANSFORMER MAINTENANCE?

0 Answers   Enercon, ERT, GEL,

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How a Universal motor works in Both A.C and D.C? What is the constructional difference with other single phase motors?

1 Answers  

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