Why Power factor is different - different in all three
phase of a 3 phase nduction motor.

Answer Posted / nagaraj n salimani

Power factor depends on the connected load on that perticular
phase due to heavy inductive load ( Induction motor)but you
are telling it is different in all three phase it is due to
the mismatch in the phase impedence in the motor winding

Is This Answer Correct ?    13 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is feeder bay?

1116


33kv Rated output avilable in market (any where in india)

1631


What is an iron loss or core loss pi?

631


The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

1523


How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.

1512






we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V

1357


how to calculate cable size in diffrent loads?

1638


When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

1679


I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

1498


What is the Temperature to be set in Thermostat provided in Marshalling box of the Transformer / Motor.

2541


does a DG set has low fault level as compared to that of a transformer.If yes then why.

1529


ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

5649


1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

1611


what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??

2114


Why derating factor os applied on Cables?

1517