why is the rating of transformer done in kva and not in kw.

Answer Posted / ansar javaid

because the transformer is pure elecrical device that's why
we rated transformer in kva on the other side generator and
motor are electromechanical devices so we rated these
devices in kw and kva

Is This Answer Correct ?    3 Yes 12 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is CVT and what is relation with wave trap?

1660


The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

1493


delta motor winding resistance I take normally single winding is 2.5, which value is came delta connection ie RY ?

1544


What is an iron loss or core loss pi?

636


What are the internal and external faults?

622






Refernce currents are to be generated using refernce cueernts how can this be done

1786


HOE WE CAN IMPROOVE BY USE OF CAPACITOR

1520


why we are using earth pit in sub stations.?

1565


why the name trunking bus PT

2499


What is the efficiency during maximum power transfer?

691


Whether the vacuum contactor requires Short circuit protection?If No,why?

1587


what is the interrelation between voltage current torgue speed and magnetic flux in case of different types of electric motors

1533


What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

2454


Can u Explain about the electronic trivector meter and the use of data converters in them?

1900


what is the purpose that we use PLC system in power system

4215