Answer Posted / avinash gupta
As we know.....
pf is angle between voltage and current...so if its value is 1 means...active power= vicosfi..if cosfi=1
cosfi=cos0..then fi=o....active power=vi
reactive pwer=visinfi so reactive power=0..thier is no losss of absobtion of power in reactive mode..so its purely resistive circuit....
powe factor must be 1 for neglecting loss...we have to make pf as close as 1 by diffrent capicitor using method incresing xc...
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com
What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?
calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.
please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com
Both generator parallel condition shared load equally but one genrator taking ampere more than the other what are all the causes to make like this
what is difference between bus coupler and auto transfer switch
Why in ESP Positive earthed
how to select electronic timer(Star-Delta) setting for diff. rating motors
What is DC series motor?
if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain
Who are the manufactures those manufacturing 3Cx2.5sqmm FRLS cables. I heard about FRLS technology adopted only in wires useful for wirings
Explain in brief description about the operation of DG sets.
What is I to C?