Answer Posted / laxmikant
Example:Let us assume, if a item lying in the ground and it
is weighing 5kg, then you required engergy to lift the same
is more than 5kg (ie 6kg), this is real energy and the what
ever the energy your applying to lift that material it is
apparant power. Because as like machines , humans are also
having some losses. which energy generated cannot be
utilzed 100% due to losses. That is why always PF less than
one ( PF = apparant power/real power = 5/6=0.833 ). The
reactive power is the energy which is lossed during that
work.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")
how to find impedance , mutual indatnce in transmission lines
in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?
Draw the single line diagram of the power station?
how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?
Can u tell me design of switch yard
What are the different methodes for calculating the short circuit Current?
What type of a DC motor would you use for a lift?
Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?
How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.
What are motor generator sets and explain the different ways the motor generator set can be used ?
what are the effects when a salient pole alternator is run at high speed like 3000 r.p.m?
I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com
hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx
How i can decide that HVDC line is best for transmission.