Answer / venkatesh

It is the ratio of Power delivered to the load to the power
supllied to the device as a input.

Answer / arun

efficiency of the transformer is 97 or 98%

Answer / gs kiani

Transformer efficiency depends upon Input and Output Power.
Effeciency =Output Power/ Input Power
As transformer is static device without any rotating part so it is most efficient electical component or device with efficiency more than 95% approaching to 98%

Answer / manikandan

which is nothing but the ratio of primary power to the
secondry power

Answer / kinjan

IT IS THE RATIO OF OUTPUT POWER TO THE INPUT POWER.

I WANT TO KNOW LONGFORM OF CT/PT USEDIN POWER PROJECTS OR HT SWITCH YARD.

7 Answers  

what is active power and rective power and power factor

1 Answers  

what is STUB protection in tranmission system and switch yard area?

9 Answers   KSEB, Power Grid,

Why we does earthing for transformer neutral point

5 Answers   amps, DLF,

what is second harmonic, how is effect transformer ?.

2 Answers   DEWA,

what is meant by mimic diagram ?where it is used ?plz explain briefly

2 Answers  

Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

How do you commission a power Transformer?

1 Answers   EEI,

Define characteristics impedance?

0 Answers  

what is meant by differential protection of transformer

1 Answers  

1amps current equal to howmany electrons to be flowed?

1 Answers  

How Can you do Maintenance of ACB of 2000Amperes

0 Answers   TATA,