How many battery required for an 3kva online ups with 3 hrs back up with usage of 3 fans,3tube lights
In vapour absorption refrigeration machine fluids used are
1.what is surge used in power system 2.what is switching used in power system 3.what is lightning used in power system
What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?
What is transmission line potential gradiant?
Why Earth pits are inter connected
make control wire diagram of start and stop a function with a single push button
What is difference between wire and cable ?
why dc series motor high speed motor
DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?
As per IS why should the control be taken only from R phase, why not from B or Y phase??!!
what is the difference between Ith & Iu rating in MCCB. Particularly on SACE ABB Circuit Breaker?
How does the phase sequence controller works, how it identifies the phases? confirm working principle