Interested to Buy Any Domain ? << Click Here >> for more details...
why Batteries & Battery chargers are used in substation?
what is the different between UPS & battery charger?
- 4 Answers
- 52991 Views
- DLF, I also Faced
- E-Mail Answers
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
WHAT WOULD BE THE FORMULA OF WIRE GAUGE FOR A FULL LOAD CURRENT
i m electrical diploma holder i want to do plc $ Scada some body tell me which insitute is best for me near chandigarh
How to do maintenance of transformer feeder.
for 11KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV OH system what will be typical per KM "R" "L" "C" parameter. for 33KV UG system what will be typical per KM "R" "L" "C" parameter.
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
Why can't we parallel the secondary circuits of two voltage transformers?
Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?
Instrument connected to a single phase supply
What is the Surge suppresor? Why using in a UDB's and How it works?
What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.
For a stable system, where should the poles of a system be in a root loci plot?
what is the formula of starting current of 3phase and 1 phase motor???
the winding of Generator and Motor is star or in delta ? and why
What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.
1.why should we connect the measuring instruments in l.v side in short circuit test of a transformer? 2.why the power factor is less in open circuit test of a transformer?
