why transformer ratings in kva?
- 99 Answers
- 211141 Views
- Bhel, College School Exams Tests, DOW, Emco, Esab, GE, KCP, PGCVL, Sodexo, TCS, vtps, Wipro, I also Faced
- E-Mail Answers
Answer Posted / john mohd
Transformers are rated in kva's because at the time of manufacture the power factor (cos phi)of the machine is not known I.e at the time of desighning you do not know which type of load is placed on that I.e the power factor is unknown
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
Define what is the function of anti-pumping in circuit breaker?
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
why output is out of phase in case of common emitter?
Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing
What is the difference between cylindrical-type and sandwich-type winding?
Why does the adjacent zone of protection overlap?
any body,pls tell me how to done relay coordination ? how to coordinate by TCC curve?how to read the tcc curve?
Why AC & DC capacitor are use in UPS ??????????????????
What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439
why lightning arrestor are made in two stack of insulator but why not cvt
What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?
What is d main advantage of using double circuit 3 phase transmission ?
a simple c++ program to calculate simple interst with its data members as private
What is the difference between earthing,ground&nutral?
