Where -48 volt DC use & why?????????
Answer Posted / jitender kotwal
first understand what -48 volt means,it means that when we
grounded the nagtive termnal of supply making it to zero
potential means nagative supply, in communacations we use
negative voltage to reduce the noise and hum level.
| Is This Answer Correct ? | 4 Yes | 5 No |
Post New Answer View All Answers
100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.
What is bridge rectifier and explain with details
What does the term supermesh means?
at which voltage level arcing ground is occurs ??????????
In ACS 1000 drive we are using 12 pulse converter,why don't use 3 pulse converter.
How to synchronization will be done between two DGs ?
How does PLC work for sychronising of Two or more DG sets?
Why control of DC motor is simpler?
What is the function of the generator exciter?
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
R=*ΒΆ l/a
All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?
State the points to be considered for selecting a particular type wiring.
What is advantages of VSCF wind electrical system?
Why auxiliary transformers are not connected in parallel in primary stations?