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
How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.
What is minimum phase system?
I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?
Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set
Difference between ac parallel circuit and ac series circuit?
what is d check in dg 1500kva
i need the details about bhel exam.how to apply for that.please send to my email-id.thenmozhi2k7@gmail.com
What is the use of iron core in a transformer?
Air refrigeration cycle works on the
66kv under ground cable how to layaing in ground any special case two ckt r runing
If 100 KAV USP dedicated earth got disconnect / Cut. What will happen at load.
How to Prepare preventive maintenance shedule of machine tool.
What happened when voltage will half value of current ...
in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
DG Earth Value?