Why the transformers are rated in kva?
Answer Posted / engr. tariq
KW = KVA * PF
According to this formula since power factor depends on
load or load current( Apparent /Real power ) therefore we
can say that the rating of transformer is in KVA.
Is This Answer Correct ? | 3 Yes | 2 No |
Post New Answer View All Answers
How to size Air Circuit breaker (ACB)? What is the most important factors?
Explain Circuit Breaker Trip Characteristics in detail.
I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.
what happens to the supply voltage if there is any change in frequency?
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
what is meant by vector group of a transformer? How can it be derived?
Please elaborate th´evenin’s theorem?
What is notching in dc machine?
WE know that for Inductor X=2pifL,In DC f=0,then X=0 so,V=IX=0;But In the DC excitation of rotor of AC generator,DC motor field coil which coils are inductor so why does not applying DC voltage short the rotor coil of AC generator and field coil of motor?If it would then DC source might be damaged but it is not happened. Why does the strand conductor of Electrical power transmission line make twist?
(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?
Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?
What must be the minimum distance maintained between 2 Generators as per International standards?
what is thermal resistance of PVC Cable.
What is dielectric loss?
What is corkscrew rule?