Answer / 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

Answer / guest

on line ups is one off the

What is the meaning of HT Trivector Meter ?

0 Answers   NIIT, Sodexo,

---

is there any pottential in neautral?

3 Answers  

---

How can we convert dc to equivalent ac??

4 Answers  

---

EXPLIAN THE IMPORTANCE OF POLY PHASE CIRCUIT.

0 Answers  

---

slor cell made?

1 Answers  

---

What are the parts in a inverter?

0 Answers  

---

Define resonant peak?

0 Answers  

---

(1) From the following option, which option is correct for largest size transformer.? a)1KVA,25Hz , b)1KVA,50HZ , c)1KVA,60Hz , d)1KVA,100Hz

5 Answers   Torrent Power,

---

without any excitation we can strt any dc or ac moter?

6 Answers   Bhel,

---

how to determine motor size for a fan application?

0 Answers   EDC,

---

what is the difference between grounding and earthing......how can we differentiate each other.....

2 Answers   Wipro,

---

How to work E.L.C.B and how to connect in circuit.

0 Answers  

---