Answer / loganathan

transformer is a static device,transferred the power from one
place to another place with out changing the frequency

Answer / parmod kumar

It is a static device which is working on the principle of
electrocmagnetic induction and transfer voltage from one
level to another level without change in frequency i.e
frequency remain same in primary as well as secondary.

Answer / ashokchakri

it is a m/c which is used to transferred the power from one
place to another place with out changing the frequency

Answer / nid

transformer is a static machine that can change the voltage from one level to another level without any change in power and frequency
ie when vtg reduces in secondary the current increases so as to keep the power in same value
V1I1 =V2I2

IN CASE OF POWER TRANSFORMERS THE SECONDARY CURRENT CAN BE EASILY FOUND OUT BY JUST DIVIDING THE kVA RATING BY .75

Answer / mihir virani

x'mer is one types of statics machine and transfer power
one place to another place withouts of change of freq.

Answer / saleem

it is simple machin

Load 380kva eb 415v,load amps 350.Same load dg 415v,load amps 420 what reason ?

1 Answers   AVT Natural Products,

7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

2 Answers  

Why transformer rating in kVA not in kW?

5 Answers   ABB,

what is the difference between the electrical and electronic choke?

1 Answers  

how to determine the size of power cable according to load current

1 Answers   JSW,

Can any body tell gulf interview question for experienced electrical engineer ?

0 Answers   Gulf,

What is lighting kitts.

0 Answers  

WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?

10 Answers  

Write down the brushes of a de machine.

0 Answers  

what the effect will occur if we increase the airgap in induction motor

3 Answers   ONGC,

What will happen if the rotor circuit of a slipring I.M. is kept open & electric supply is given to its stator winding.

2 Answers  

We have a 12MW power plant & we inject 5-6MW power to Orissa GRID. For this we have a 33KV/11KV switch yard having 12.5MVA power transformer. Some times we draw power during emergency. It is observed that during Export or Import for load less than 500Kw the power factor is decreasing to 0.3 . This is happening only during export or import. During island condition TG power factor OK.Our capacitor bank is provided with our Power plant auxilliary load. Please suggest how I can we improve our power factor during low load (GRID).

3 Answers