Answer Posted / pradeep. b
UPS is uninterrupted power supply which supplies power
through the batteries at all times
or
UPS is an electronic device that contiunes so supply
electricity to load for cetain period time during a loss of
utility power or when the line voltage varies outside the
normal limits
There are differnet types UPS aviable listed below,
1. OFF line / Stand bu UPS.
2. Line interactive UPS.
3. Ferro - resonant UPS.
4. Online UPS.
5. Double conversion UPS.
6. Delta convertion UPS.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
Why can't we parallel Voltage transformer secondary circuits?
What are the special cables required for explosion proof wiring?
DG SET BLOCK DIGRAM
What is a system?
HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.
what is difference between cpp electrical system and refinery electrical system
what does a k rating in a transformer means?
how to calculte capacitor range for single phase induction motors??pls tel
can i use 2000/5A Clamp meter to measure HT cable
What are the types of the glands and difference between single and double compression type of cable Glands.
How REF protects transformer alone? explain with diagram.
What is the different types of cable & current capacity of cable
what is integrated ac contact circuit
why do we use 25kv supply for traction purpose?
how to maintain frenquncy with syncronising sub-station for distribution