piu(power interface unit) convert 3 phase ac power supply in
230 volt ac with stablised and no surge and interference
effect. piu mostly used in telecom sector for providing ac
supply to all equipment used in shelter and also control dg
and consist a lot of protection and showing alarm indication
and record events upto 500.
Please Help Members By Posting Answers For Below Questions
what's the difference between abs/inc encoders. apart from
the position remembrance what are all the other
differences. and what's mean by grey code.
_____hamari_____tumhari____ne dil ki_____utari. _____ne ____ dekha ashe ___ doshti ko lage na hamari.Complete pajal
EXPLAIN WHY THE SURGE CURRENT RATING OF AN MCCB OR CIRCUIT
BREAKER DECREASES WITH INCREASE IN THE RATING OF MCCB OR
how to generator maintenance (A Check, B check,Etc)
A 11KV, 1200 A breaker combination fixed in a cubicle for
HT motor.Is normally for 11 KV motor fuse is using? if Yes,
What range fuse is required?
How does the slip regulator works as a startor
what is the effect of un-synchronized power.
for 11KV OH system what will be typical per KM "R" "L" "C"
for 33KV OH system what will be typical per KM "R" "L" "C"
for 33KV UG system what will be typical per KM "R" "L" "C"
A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.
How to do cable earhing? whether by grounding Armour to
ground or by running extra G.I wire along with cable?
which one is preferred mostly amoung them? If the second
one is more preferable how many GI wires to be run along
with cable (1 or 2)?
Period of infinite continuous fourier series
I want to replace the 3 KW DC motor with AC motor so what
should be the rating of AC motor?
Details Of DC motor to be changed with AC are -
Kw - 3, Vf - 310, If - 0.15, Va - 400, Ia - 13, RPM - 2400
what is the reactance,capacitance & impedence electrical
armoured & unarmored Cables.
what are the differences between 'exhaust fan', 'heavy-duty
exhaust fan' & 'super heavy duty exhaust fan'.
what are their power ratings ?
If auto trip is operated, can you close the breaker.