what is the difference between transformer and amplifier ??

5 Answers  

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how can you prove that in CE configuration a transistor has 180 degree phase shifted output

5 Answers   Bhel,

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Why we use less dia. fuse and conductors at H.T. side, although we use higher dia. cables on L.t. side?

4 Answers   RRB,

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difference between substation & grid substation?

2 Answers   GMR,

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What is the effect of earth capacitance

3 Answers  

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Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

0 Answers  

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in ct secondary one terminal is connected to earth why?

1 Answers  

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how is positive, negative, zero sequence is happen.. how is effect on 3 phase system

0 Answers  

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how can we minimize the off load losses of a distribution transformer which is required to be energized 24x7 ?? capacity of the T/F is 1250 KVA and off load losses are around 2.0 KW.. can we use capacitor bank at the secondary of such a T/F to overcome off load losses? please elaborate briefly...thanks

2 Answers  

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how can i use REF and diffrencial relay both in 1 CT core for transformer protection?

0 Answers  

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EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

0 Answers  

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Is it possible to protect 3phase overload and earth fault of the 3phase system using two CT's.

0 Answers  

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