In case of legging current of 20°, pf is .94 and leading of 20°,pf is .

In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematicaly both are same but in realy how it is differ ?

Question Posted / pradyumna chandra panda

3 Answers
3954 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematical..

Answer / prem maheshwari

in case of leading, current leads the voltage at angle of 20,and in laging current lags behind the voltage.mathematically both have equal vallu but, phasor diag. is diffrent. frist is capacitive load second is inductive load.

Is This Answer Correct ?

3 Yes

0 No

In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematical..

Answer / s.sakthivel perambalur

lagging meant in power supply voltage sin wave is first
distributed and then omega time period later current sin
wave is distributed
but leading meant is current sin wave is first distributed
then omega time period later voltage sin wave distributed

Is This Answer Correct ?

2 Yes

0 No

In case of legging current of 20°, pf is .94 and leading of 20°,pf is .94 , in mathematical..

Answer / najeeb khan

reactive power remains same in both cases. mathematically we
just write Legging or leading. actually reactive power is an
undesirable phenomenon whether it is legging or leading.

the reason we think that leading pf is good is that it
neutralizes the legging reactive pf,(as our power system
mostly consists of legging pf equipments ).

Is This Answer Correct ?

1 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

types of motors suitable for escalators with reason

2 Answers

Hi, This is Laila. I am selected for syndicate bank interview. Could you please share your views and the questions asked if you have faced the interview My email id is laila_honey09@yahoo.com Please send as fast as u can.Thank You Thanks... Laila.

0 Answers RRB,

hi i m going to attend bhel interview on 22nd sep 2008 for ET(electrical engineering).pls guide me how to prepare for the interview.i am a fresher.

1 Answers Bhel,

I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.

0 Answers

What is LSIG ?

6 Answers Apollo Power,

What is a surge supressor why its is used in synchronous generators

0 Answers

If we use 250A MCCB as a incomer in Control panel for a fault level of 50kA for one second ,assuming temperature rise from 85 Deg. to 100 Deg , Then what will be the Aluminium Bus-bar size for 250A MCCB? Explain in detail.

0 Answers Usha Capacitors,

How to Calculate The sag of OPGW in Transmission Line???

0 Answers Zenco Systems,

i have 28/32 MVA power transformer with 11/6.6 KC voltage rating and 12%impedance.it have star connection at both side.but it have another thied winding tertiary winding.what is used of this winding. pl tell me

7 Answers

For maintenance Department What type documention requir for ISo & TS audit

1 Answers Megatron Solutions, Sams,

whenever a squirrel or a crow gets tangled near the out put of the feild transformer there is a discharge of 440 volts of current through the neutral due to which my appliances blow up causing a huge bang.will the RCCB help in these conditions

1 Answers

why the neutral point in connnection oscillates?

0 Answers Avalon,

For more Electrical Engineering Interview Questions Click Here