Answer / nagaseshareddy.m

significance of per unit impedance is reducing the
complexity of calculation. Zp.u=actual
impedance/baseimpedance

Answer / praveen

In power system values of impedence will be large so to
reduce its complexcity in calculation it is expressed in
per unit....

Answer / mafika

p.u impedance represents the amount of volt drop that's
going to occur in the transformer and also helps in the
fault calculations

Answer / tiwari

P.u calculation is done to
simplify the calculation per
unit impedence is
convenient in case of
transformer because both
primary and secondary p.u
impedence is same

Answer / ravindra

it's dimentinalless quantity not having any units, it can
be converted refer to primary or secondary.

Answer / parviz

By per unit impedance, we are able to deal with R, L and C in the same way as a resistor.

Answer / jabber

ohm/m

what are advantage and disadvantage of hvdc transmission . please tell us technic of hvdc technology

2 Answers  

if the HR asked to me., you have got 92% in higher secondary but got only 72% in engg whats the reason??what should i have to say ..please help me..

8 Answers   Honeywell, Wipro,

What is double delta conection in AC Motor? And can we done the double RPM of the motor by double delta conection?

1 Answers   vguard,

what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.

0 Answers   HAL,

why and how voltage sharing in transformer, during magnetic balance test ?

0 Answers   ME,

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

0 Answers  

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

0 Answers   VECL,

Do you know the alignment of a motor?

8 Answers   Reliance,

Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.

0 Answers  

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 Answers  

what is ripple component in ac supply?

2 Answers  

what is use of governer in diesle engine

1 Answers   Aricent,