Answer / jitesh kotecha

induction motor is an inductive device and we know that in
inductive circuit current lags behind voltage due to the
inductive reactance of the motor. so that the phase angle
between voltage and current will increase. and the cosine
angle i.e. P.F. will decreases.to improve the p.f we have
to supply leading Kvar to the system. it is possible by
different way. either use capacitor bank which will supply
leading kvar to the syswtem and overall lagging kvar will
decreases and if we see the power triangle then the angle
between KW and KVA will decrease so that the p.f. will
improve. second method is to run synchronous motor on
leading p.f.in parallel with the system.

Answer / karthikeyan

the above answer saying synchronous motor can be used but
we never see a synchronous installed near indution motor.
We always uses static capacitors to improve the overall PF.
why because only in High end generating stations and
substations the synchronous motor can be used to imrove
system PF. for medium and small loads we can go for static
capacitor bank.

Answer / ravi

Bcoz the IM will drwa an Lagging Current..

We can use a APFC Bank to maintain it.

Answer / umesh

induction motor have inductive materials which lags behand
the the voltage,that's way power factor decreases it
connected to induction motor,
PF can improve the power factor by connecting the
syncronous motor parralel to the incution motor ,

Syncronous motor running cost is costly, it will be run in
idle

Answer / aniket kumar

by decreasing the reactive power we can maintain the power factor to unity

Answer / raushan singh

We can use capacitors to improve power factor in
Synchronous Alternators.

why generation of electricity in low value voltage

3 Answers  

In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

0 Answers  

how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

6 Answers   Bosch, NMDC,

wchich motor we are using in mixer?

4 Answers  

WHAT SHOULD BE THE RATING OF generator required to run a pump motor of 45 Kw.

1 Answers   Jauss Polymers,

Can any body tell me about partial discharge test, and why it is necessary and its procedure

1 Answers  

what is the meaning and full form of AYFY CABLE?

10 Answers   ABB, Cable Wireless, Ecom Associates, Tamboli Engineers,

what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 Answers  

what is star&delta connections?

5 Answers  

How much the fault level of 11 k.v.,22 k.v., 33 k.v. (in Maharashtra- M.S.E.D.C.L) for calculation of short circuit current & selection of h.t.cable.

1 Answers  

An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

1 Answers   Saint Gobain,

What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?

0 Answers