Where -48 volt DC use & why?????????
- 10 Answers
- 29116 Views
- Ericsson, INDUS, Indus Towers, Telecom, I also Faced
- E-Mail Answers
Answer Posted / anant gupta
it's true that telecommunications equipments operates on the
negative 48 volts DC.
how can we get any voltage while we are grounding the
positive terminal. pls give details.....
| Is This Answer Correct ? | 9 Yes | 4 No |
Post New Answer View All Answers
please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.
when will be the iocl interview results ifaced the interview on september 8 th
Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason
how to calculate the capacitor to maintain power factor?
Define unilateral circuit?
What is line resistance of cable & how it can be measured ?
what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load
sir vizag steel ka junior trainee ka paper kitne number ka ayega
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
how to calculate short circuit current for the busbar
which type of stability limit is higher,steady state or transient? why?
What is the difference between PLC and Embeded system
What is the distance between each insulator in 33kv transformer and how can it calculate
Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?
how is the testing of an REF relay? what are the test REF circuit having?
