how and why are capacitors are used to improve powerfactor?

Answers were Sorted based on User's Feedback



how and why are capacitors are used to improve powerfactor?..

Answer / gunasekhar

power factor poor means current is lagged behind voltage . capacitor has leading current. it compensates the phase angle between voltage and current when we connect capacitor.

Is This Answer Correct ?    6 Yes 1 No

how and why are capacitors are used to improve powerfactor?..

Answer / guest

Generally, poor power facor means that the current lag
behind voltage because of inductive loads. Capacitors
supply leading current with respect to the voltage which
cancels out the effect of inductive loads. Thus the source
side views the loads as purely resistive one. ence,
capacitors are used to improve power factor

Is This Answer Correct ?    3 Yes 1 No

how and why are capacitors are used to improve powerfactor?..

Answer / guest

BECAUSE IT GIVES LEADING POWER FACTOR WHICH BRINGS THE POWER
FACTOR CLOSE TO UNITY AND SUPPLY MAX ACTIVE POWER

Is This Answer Correct ?    1 Yes 0 No

how and why are capacitors are used to improve powerfactor?..

Answer / d.ramesh clsses

follow the answer#1 and you know, in capacitor the current has 90 degrees triangle forward than voltage and in inductors' current is 90 degrees backward than voltage, so because all motors are likes inductors because of theirs winding so capacitance reduces the angle between current and voltage and cause higher power factor and less energy consuming and high efficiency.

by D.RAMESH CLASSES

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

what is different between grounding and earthings?

4 Answers  


The importance of resonant filters in converters?

1 Answers  


explain how hunting can be reduced in an alternators?

3 Answers  


Where we give genset o/p in home & industrial applications ?

1 Answers  


what is the working principle of ceiling fan and table fan?

10 Answers   ABC, Tata Steel Limited,






what is the difference between effective earthing and resistive earthing?

3 Answers   REL,


what is the fuction of electrical transducer in control pannel?

6 Answers  


what is transformer

7 Answers   Hofincons,


what is transient enclosure vltage , very fast transients, very fast transient over voltages

0 Answers  


How to calculate voltage drop in copper and aluminium cable? I have laid 240Sq.mm Aluminium cable for the length of 600 Mtrs in 1 Mtrs underground. Normal load is 150A. Transformer is 630KVA, 6.KV/433V. But, I am getting only 395 Volts when load. How to calculate voltage drop and what is the permissible voltge drop for this circuit?

1 Answers  


why transmission line towers are longer than communication line towers?

3 Answers  


how to calculate the multiplying factor for energy meter with CT ratio given

23 Answers   Bhel, Dalmia Group, DIFC, Fedco, Hindustan Unilever Limited, Lupin, MahaDiscom, MAL Pakistan, Myunghwa Automotive, Panchshil Infrastructure, Regala, RVPN, VIPL,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)