Answer / jayesh vegad

Above ans.is absolutly
wrong.the of primary current
to secondry current is called
transformation ratio and the
ratio of primary turns to
secondry turns is called turn
ratio.

Answer / ameer

Turns ratio=Np/Ns
Transformation ratio=Ns/Np

Answer / fareeha azam

turn ratio=Np/Ns transformation ratio=Ns/Np

Answer / abiodun fadairo

Turns Ratio = Np/Ns

Transformation Ratio = Ip/Is

The product of Turns Ratio & Transformation Ratio = 1

Answer / vivek opjit

Transformation Ratio, R = IPri / ISec for a C.T.
and R = VPri / VSec for a P.T.
Turns Ratio, n = Nsec / NPri for a C.T.
= NPri / NSec for a P.T

Answer / anshuman

Turn ratio is the ratio of the number of turns in the primary winding to that in the secondary winding. But transformation ratio is the ratio of the primary to the secondary induced voltage. In an ideal transformer both are same but in a practical transformer there is a small difference between the two as the voltage(or current) are not transferred exactly as the ratio(inverse ratio in case of current transformation) of their turns ratio. But there is some error due to constructional limitations

Answer / vivek opjit

turns ratio= no. of turns in secondary/ no. of turns in primary &
transformation raio is depend upon operation of transformer i.e., if transformer is step up (N2>N1) than transformation ratio may be defined as
transformation ratio= N2/N1 also.

Answer / varaprasad

transformer ratio = secondry winding /primery winding

Stator core loss of squirrel cage induction motor compared to rotor core loss is= A equal B more C less D depends on load

2 Answers  

operation principle of a generator? Gss, Diesel and HFO which is better and why?

1 Answers  

we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.

2 Answers  

On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

0 Answers  

while selecting transformers for 33 kva feeder normally we ask for 33/433 kv why not 33/415

1 Answers  

whats is MARX CIRCUIT?

1 Answers  

How we calculate airgap between phases & terminal box of the transformer? any formulae.

1 Answers  

hi.. i am krishna. i've complide my diploma engg.in electrical.i applied many places for jobs.but i am always fear from written test.ican't get success in it. i think my basic engg. is weak..show me some idea please..!

5 Answers  

What is mimimum di -electric strength value for 33 KV transformer OLTC oil

0 Answers   Franke Faber,

Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?

1 Answers  

ful form of gis

2 Answers   ABB,