Answer / u.v.v.satyanarayana

actually transformer rating is in KVA. so powerfactor is
not come across t/f,because total loss depends on voltage
and current only. generally p.f is unity.

Answer / raghu

Transformer power factor is depends on our type of load current depends on pf,voltage and KW.

Answer / mostafaghodrat

According to the load account. If there is no load
p. fee no load on the transformer is about 0.3 to 0.4

can we use the step down transformer to step up transformer

6 Answers  

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if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??

1 Answers   CS, L&T,

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why in large rating C.T.s equipotential wires are used?

2 Answers   Essar,

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what is the difference between LLL and LLLG fault ?

1 Answers  

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How we can change the direction of rotation of Induction motor? Prove it using graphical methods.

2 Answers  

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why co incidence factor considered in transformer sizing?

0 Answers  

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What is the differance between a converter duty transformer and normal power transformer?

1 Answers   Bhel,

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How can we estimate Gen rotor current?

3 Answers  

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how nautral is provided for return path is 3 phase induction motor

0 Answers   SNGPL,

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0 Answers   TATA,

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What do you mean by deregulated power system structure? Which structure (regulated/deregulated) is used by modern power system?

1 Answers  

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WHY ARE THE LT GENERATORS SOLIDLY EARTHED WHILE THE HT GENERATORS ARE EARTHE THROUGH NGR OR NGT??

3 Answers  

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