WHY PROTECTION CT IS USED NEXT TO METERING CT?
in 33KV or 66KV system which connection is aviable on high voltage transformer primary delta or star ?
How can we define 'Phase'
Power Factor Controller
How much load with stand the copper cable by sq mm apro..
What are the advantages of using distance protection schemes as opposed to normal overcurrent/ earth fault protection on high voltage feeders.
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 . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.
differance b|w ground, neutral&earth
make control wire diagram of start and stop a function with a single push button
A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N
How do you select a cable size(cu and Al) for a particular load
what is mutual induction principle?
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