Interested to Buy Any Domain ? << Click Here >> for more details...
What type of isolation transformer used in UPS's??
It's Star-Delata Or Delata-Star????Why it is used????
- 6 Answers
- 17573 Views
- Emerson, I also Faced
- E-Mail Answers
Answer Posted / mms
UPS OUTPUT FROM IGBT IS WITHOUT NUETRAL IT IS JUST PHASE
AND CUSTOMER REQUIRED PHASE AND NUTRAL FOR LOAD SO IN UPS
USE STAR OUT PUT TO THE LOAD HENCE THE USE "DELTA STAR"
TRANSFORMER USED IN UPS
FOR EXAMPLE IN SINGLE PHASE UPS OUTPUT(230VAC) WITHOUT
CONNECTING THE DEDICATED EARTH THIS TWO TERMINAL HAS OUTPUT
VOLTAGE FOUND 115 AND 115 VOLTS AND ALSO BOTH POINT TESTER
IS GLOWS THUS WE CONNECT THE EARTHING TO UPS
| Is This Answer Correct ? | 6 Yes | 4 No |
Post New Answer View All Answers
Why are cables rated for 40 KA for 0.25 Sec fault current rating?
which connection is safer series or parallel?usually which connection we prefer at home?
Write the force balance equation of m ideal mass element.
Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?
defination of controlled shunt reactor
What is mean by spike arrester(Voltage Operated)
0.5,1,1.5,2.5,4.0.6.0,10,16 square mm electrical wires how much take maximum current in 50htz
if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.
At what speed an electric car can run with 2 HP motor of weighing 400 kg?
what sort of general awareness questions are asked in o.n.g.c entrance exam?????????????????
what is the difference between skin effect
-What should be minimum value of insulation resistance and maximum value of earth resistance at any electrical instillation and what is method of testing the same.
in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?
how can we say that stator magnetic field rotates with synchronous speed?can we derive?
Differentiate between Zero and Negative sequence current
