Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / badri narayan satpathy
UPS are generaly two type
1:- on line
2:- off line
1:- on line
In the on line ups at the starting time the ups output
is syncronise with the input supply and when the input
supply is break then the backup supply is starting withen 0
milli second .
2:- off line
in off line ups allways the input power is directly
bypass to output when the input is break then the inverter
section is start to working withen 4 to 6 milli second
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
What is the distance between body earthing and neutral earthing.?
plz tel me syllabus and exam date 4 jr executive engg (electrical)
i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
impliment (AB)`+C to transistor representation
Draw the vector diagramme for Asynchronous Induction Generator at noload,half load and fullload.
5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........
Why reactive power is needed in a power system? How is it being absorbed or delivered by alternators? For reactive power control we are changing excitation but reactive power absorbing or delivering related to stator. How these two are interlinked? i want a detailed explanation with necessary expressions and figures?
How to calculate cable size in HT AND LT
how we calculate the withstansing current capacity of wires&cables?
specific difference of ICT&Auto Transformer
R=*ΒΆ l/a
how to identify the cable quality and what is flame proof cable
What do you understand by oldham's coupling ?
Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?
we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor
