mccb service sittings be done?
Where earth point should provided in Ships or Submirines.
When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?
What's the differs between voltage & current & emf.
How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......
why field winding in synchronous machine connecting in star position?
why we used.c source in the field of the alternator , why not a.c source.
what is the formula of starting current of 3phase and 1 phase motor???
how to select a air/vacuum circuit breaker.is there any thumb rule???
whats relation b/w motor current & friqency
why anti pumping relay is not given to tripping coil of the breaker? why only to closing coil?
sir What is the different bet'n "Active & passive" sensors