what perpos use cepacitors in motars,fans,lights,and LT panal

what perpos use cepacitors in motars,fans,lights,and LT
panal

Question Posted / vipul

1 Answers
5447 Views
I also Faced
E-Mail Answers

what perpos use cepacitors in motars,fans,lights,and LT panal..

dear ac contains +ve and -ve cycles now in wat direction
fan will move.
the capacitor increases the amplitude of +ve cycle by
giving it the stored magnetic energy and fan starts
rotating in +ve directioni.e anticlockwise

do one thing change the connections of capacitor and wat
will u see is tha t the fan starts rotating in opposite
direction

do one more thing remove the capacitor and make the
connections complete without capacitor u see the fan will
not rotates in any direction now take a rod and rotate the
fan manualy in any direction the fan starts rotating

in tubelights it is used toblock the dc component so as tto
avoid noise

in m/cs used as starter

in lt panels used to improve the power factor

Is This Answer Correct ?

9 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

Why is making current of CB always greater than CB breaking burrent?.

6 Answers JP Group,

Why distribution transformer secondary voltage is 0.433kV instead of 0.415kV.all other switchgear rating are 415 volt??

3 Answers

What is polar plot?

0 Answers

which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing

0 Answers

can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?

0 Answers

As per standard, transformer body earthing and other Equipment earthing (Equipment earthing) did not connect. but in LT side termination we are doing metal glanding in both side Transformer to PCC Panel through armoured cable, now X'mer body earthing and PCC Pane earthing (Equipment earthing) both are connect.is this safe for X'mer or other equipment?

0 Answers

When the power Factor (p.f)is lead then how the Voltage can rises?

1 Answers

What is miller crystal oscillator? Explain its operation?

0 Answers

explain which quantities change in the starting and the and the running condition in induction motor

0 Answers Gulf Spic,

why CFL lamp requires less electricity than a normal lamp?/

3 Answers

why nutral and earthing wire connect with each other in main panel board.?

2 Answers

Why power factor is arising in electrical circuit, is it possible to eliminate from the circuit, why

2 Answers

For more Electrical Engineering Interview Questions Click Here