Answer / shan80

The working principal of transformer is step up / step down
voltage without any chage in frequency.
So frequency remains same at both sides step up side or
step down side, normaly it is 50Hz.

Answer / fransis

Generally Frequency is maintained by generation station for
a common distribution system.It is not possible to change
frequency while step up or step down the voltage on any
transformer.
This is also possible to change the frequency by term of
electronic controll device like in soft starter. In the soft
starter frequency is controlled with voltage to control the
speed of motor.

Answer / parin

it is possible to step up 220v to 11kv using transformer,transformer does not change frequency,ti only transfer power one stage to another with constant freq.

Answer / amarnath

it should be or it is 49.5 to 50.5 Hz normally. If this is
not the frequency then we need to have a capacitor to
improve the frequency and power factor.

Answer / rahul

frequency is same that of 220kv,220/11kv is possible.it
depends on secondary windings

Answer / azhar ali

It doesn't matter if you step up or step down the voltage, frequency will always remain the same as per principle of transformer it transforms voltage without any change in frequency.

how can I check HT cable ?

2 Answers  

if single phase is 230 v three phase is 440 v then what about two phase?and why is it so?

2 Answers   Eicher,

What is meant by Creepage Distance in Insulators?

2 Answers   Areva,

The unit of current is the:(a) Volt(b) Coulomb(c) Joule(d) Ampere

2 Answers  

what is the difference between earth, neutral and ground?

1 Answers   Farnek, Shyam Indus Power, Spiro Solutions,

Synchrounous motor is three phase motor,but its not self starting .why?

22 Answers   Delta Beverages, KI, L&T, NTC, TVS, Wipro,

hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

0 Answers   Ansaldo,

1.what type of wave is produced from i.online ups ii.offline ups iii.inverter.why don't we use inverter instant of offline ups for computer,what's the reason?

2 Answers  

why we use choke in tubelights nad other lighting fixer

1 Answers  

Mathemetical Relation Between KWRH and KWH?

3 Answers   UPPCL,

why the weight of oil in transformer is specified (on the nameplate) in litres as well as kilo grams?

3 Answers   Reliance,

wht factor are considered to design ACB( air Circuit reaker) 415V

3 Answers