what perpos use cepacitors in motars,fans,lights,and LT
panal
Answer / ankush miglani 09718151073
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 |
Why is making current of CB always greater than CB breaking burrent?.
Why distribution transformer secondary voltage is 0.433kV instead of 0.415kV.all other switchgear rating are 415 volt??
What is polar plot?
which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing
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?
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?
When the power Factor (p.f)is lead then how the Voltage can rises?
What is miller crystal oscillator? Explain its operation?
explain which quantities change in the starting and the and the running condition in induction motor
why CFL lamp requires less electricity than a normal lamp?/
why nutral and earthing wire connect with each other in main panel board.?
Why power factor is arising in electrical circuit, is it possible to eliminate from the circuit, why
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)