wheather the size of windings in motor and generator are
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How to calculate the current in DG What are the type of power pls explain with related formulas
What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............
Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks
can a generator with 15AH specified battery for starting can be connected to a battery of greater capacity?
what is diffrent of RCCB & MCCB
Conventionally, capacitors are considered to generate reactive power and inductors to consume it,how??????
please, Send me last technical test question paper in my email id..
what are the insulation properties.
A motor works on 30kw.it is working on 440volts.How much amper will be Required?
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I am about to write exam in RRB bangalore for the post of section engineer.please provide me with previous exam questions