why Batteries & Battery chargers are used in substation?
what is the different between UPS & battery charger?
Answer Posted / amit khamesra
In lieu of a more reliable power supply source, DC supply
is used in place of normal AC supply. If there is a
blackout, AC power will not be available n the electrical
protection devices will not operate. To avoid any such
situation, DC supply is used. DC supply is provided by
batteries and charger is used to keep the batteries healthy
by trickle charging the batteries in Float / Boost mode as
required. UPS is an uninteruptable power supply which uses
converter inverter set. AC input is first converted to DC
and again converted to AC. The battery bank installed for
UPS is connected in between converter inverter set so that
if AC supply to converter fails, battery comes on load and
supplies DC to inverter for maintaining the AC power supply
at output end.
| Is This Answer Correct ? | 17 Yes | 9 No |
Post New Answer View All Answers
in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks
Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?
In which working principal temperature transmitter work.explain in detailed.
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
Explain how you intend to work under pressure to meet up with deadline target?
Dear sir my name Ankit i m Diploma holder present working in Welspun Corp ltd Anjar as Asst.engg (salary 14400/month ctc) i Would like to change my company also i have selected in ford India pvt ltd Sanand as trainee Tech with salary 12000/month so please suggest me for changing my job hope for *ve response
how rectifier transformer work in electroststic precipetatore(esp?
How to determine stage of Automatic Power factor controlling Relay(Apfcr)?
Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?
How to discuss the phase shift of transformer considering open delta?
What is the difference between electrical earthing and electrical grounding?
what are carbondioxide and dcp used in fire extinguishers
What is the difference between a 3 winding and 2 winding Potential Transformer
Name two low frequency oscillators?
what is zinc diffusion?