what is the effect of power factor in electrical circuit ?
if we mainten power factor near about unity (0.999) our
energy consumption Units increase or decrease?

Answer Posted / yogesh

As we know Load is in KW & it is constant. PF will not
change units consumed as we are measuring energy consumption
units in KW not in KVA, only transmission losses will be
reduced.
KW=1.73 X V X I X cos phi
AS KW is constant, voltage is constant if cos phi changes
current will be changed.

Is This Answer Correct ?    9 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How much minimum insulation required between 11kv/3.3kv transformer windings?

1970


Form S and "c" license application both are same? @ tneb portal

1256


Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.

1461


Can you explain about TEE protection scheme?

1750


how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

1628






What is meant by Low Resistance Cable and High Resistance Cable.

1424


what is v/f control in VFD?

1060


How out of step protection relay works?

1772


what is the prosses for getting of 33kv licence (i have completed my engineering degree & working in 33kv substation for contract basis )????

1394


HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory

1420


what are the analog quality input for protection function?what are minimum reqiments?

1404


Why need 3phase machine double earthing?

1321


WHY BREAKER ARE USED IN SUBSTATIONS?

1724


The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

1279


My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I -    is the value of AC fault current. t -    is the operating time of disconnecting device in seconds. K –  is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

1442