Where -48 volt DC use & why?????????

Answer Posted / pundlik wanwe

48v Dc is used in the telecommunication circuit.

Is This Answer Correct ?    57 Yes 6 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How is operate breaker failure scheme in substation

1523


What Is Connection APFC Panel In Compony.

924


How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles?

1663


What should be the length of transmission line so that we can see/obtain the full sine wave of voltage??

1397


what is the correct method for the outdoor termination of 19/33 KV HT cable step by step?

1619






THERMAL CAPACITANCE IS MEASURED IN..................................................

1682


hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

1531


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1153


actually i can't understand what is 3dB ? and it's really not clear to me.please any one let it me be cleared.

1711


How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

1397


in science exhibition how lamp can blink when you clap near the lamp ? thank you

1483


1.What is captive power plant? 2.What is national grid?Give brief idea.

1692


How may I get the maximum current capacity for a particullar size Alluminum or Copper cable if there is compulsion to use?

1438


What do you mean by phasors?

619


Briefing the effects of ASR and ACR of a double closed-loop speed regulating system.

1683