what do you mean by PF correction. A motor is rated at 15
kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is
improved to 0.98 by adding capacitors at the bus. calculate
the current drawn by motor under full load condition before
and after pf correction
Answer Posted / gk
Full load condition means rated power of 15 kw
condition.And P=VICOSQ. where v assumed to be maintained at
415v from terminal.So ICOSQ is constant to maintain rated
15kw(= (V)*(ICOSQ)) full load. Therefore if PF is improved,
current drawn by motor from supply mains will be reduced.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
A low wet bulb temperature indicates
if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm
I want single line diagram for AMF & DG syncronizing panel
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks
What is the differentional relay...what is the work of this in power Tx. how it is works..
What do you mean by per capita requirement of electrical energy in india
explain the functions of main isolation switches
What will be the diameter of pipe between conservation tank and transformer
How to select a cable size for particular load?
WHAT IS MEANT BY SHEATH VOLTAGE IN 132Kv cable?
what is arc flash and what are the hazards involved
PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
Why are the laminations insulated from each other?
what is per unit calculation?looking for simple and strong explanation thk u