Why the substation measure in KV but not in the power ratings of transformer.
- 4 Answers
- 5469 Views
- I also Faced
- E-Mail Answers
Answer Posted / j.prakash
Transformer is static device there is no any rotating part
so there is no any friction losses, only iron loss and cu
loss in transformer, iron loss depend upon the voltage and
cu loss depend upon the current, there in no any loss which
depend upon power factor,so rating of transformer only in
kva.SO NOT IN KW..
| Is This Answer Correct ? | 6 Yes | 2 No |
Post New Answer View All Answers
When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?
Difference between field rheostat and armature rheostat.
why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.
Is any generator is developed which is operated with out diesal or other expensive source?
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
What is the approximate value of stacking factor?
What is the technical difference between On delay timer and a Star delta timer?
Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?
why ss stablity limit is more transient stablity limit?
What does the term supermesh means?
What is the difference between electrical earthing and electrical grounding?
How can we design a HVAC Plant room which includes AHU,FCU,Chillers,Cooling towers, Pumps etc & how will they work? any Drawing if possible?
What is the type of earth fault protection used in battery? explain.
What is the previous name of Cox's Bazar
What is the phase relationship between the primary and secondary voltages of a transformer?
