how can we convert 48V dc into 12 V dc? Any standard device
for it??

Answer Posted / k.prakashchandra

potential divider or DC/DC converter (PSU- Power supply
unit)

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1488


if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

1300


In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because

777


In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

1431


What is process of anneling transformer core

1469






does any one know where we can purchase insulation oil for high voltage oil filled cables

1865


What are the different types of controllers?

654


What is FTA card? How it works?

1741


Where can I get Iidian straderd specifications for electrical items or works in web? please help me.

1594


Please send 110 kv sb station full single line drawing(sld)

2060


What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?

1511


What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

2103


What are test values for an 63 KVA and 100 Kva Distribution Transformers for the following typical tests 1)Magnetic balance 2)Short circuit test 3)Open Circuit test 4)Vector group confirmation test .please give me the standard values for all the above tests.

2279


in a solar power plant,we are going to step up the voltage 350V to 33kv, and to 132kv GSS. i want to ask that if it is possible that 315v/33kv is not possible because we also use 315v/11kv. or it should be 415v/33kv? is it effects generation or losses?  the second question is-generation is depends on LV winding? or LV winding design for generation voltage?

1300


WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

1490