Why the generator rating in kva

Answer Posted / hiren

bcz the output in kw. is dependent on p.f. and kva o/p.
independent of p.f.for example asingle phase alternator
drawing 50 amp atunity p.f. at 230v has an o/p. of
(50*230)=11.5kw at unity p.f: (50*230*0.6)=9.6kw.at
0.8 p.f.and (50*230*0.6)=9.6kwat 0.6 p.f. but the kva
rating of alternator is (230*50)=11.5kva.

Is This Answer Correct ?    1 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.

1363


How to test REF relay testing for LV panel as per Kahramaa standard?

4244


1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

1521


How capacitor improves pf

1205


Why do not we prefer non conventional sources of energy to conventional sources?

687






current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

1161


Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

1618


What is BusBar integrity test and how it is conducted?

1571


Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

1745


An impedance of 100 ohms resistance and an unknown inductance is connected across the capacitor. The resulting impedance is a pure resistance of 500 ohms ifω = 10^5 rad/sec. calculate the values of inductor and capacitor.

728


Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

922


how can calculate 1kva generator running time in 1 liter keroscene

2109


What is stepper motor?

729


How much inductance or resistance require as a starter in series with induction motor of specific capacity(e.g. 5 hp) ? What is formula for it ?

1499


I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

1326