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
how to determine the cable size...pls explain me with the
formula taking particular load....does the factors like
impedance & short circuit rating influence the cable size,
if so how....
what is d check in dg 1500kva
please anybody help me to find out the BHEL trainee Exam
previous year questions papers . if u ve pls. send it to
draw 3 phase rectifier diagram
How can you calculate the size of the down conductor cable
for the lightning protection system. Is 70mm2 cable can
replace 95mm 2 bare copper cable when the copper tape size
is 25Wx3 thk mm.
How to control motor gearbox speed and friquency?
If length of cable and dia given, how to measure the
in my working site. momentary jerck in electrical supply ocurred frequently which cause of multiple losses in our electrical equipements. how can we protect our electrical machines and equipements in this situation.
Leakage current,un balance current which relay using for high voltage transmission?
WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND
CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION
2. What are the parameters of EHT sub-station?
What is the function of RCBO? What are the different
sensitivity ratings & each application?
why we generate 11kv power supply in generating station?
why we have to particulary use ACB for below ratings,even
available of MCB,MCCB with that range ?
any application of back emf
Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ?
I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?