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Un-Answered Questions { Electrical Engineering }

Type of motor stater detail and working detail

1035


How capacitor improves pf

931


What is use of starter and choke in tube light

1055


15hp motor wound by 0.9mm & 0.95mm magnet wire. at no load test it draw 4.2A current. Another motor with same condition draw 9.2A current. How can that occur? pls help

852


Difference between Lugs and Thimbles

10179


how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

950


do we use neutral grounding for resistive balanced load? if we use what happen?

1102


Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

1004


Why the field rheostat is adjusted such that the voltmeter reads 380V

1541


1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

1066


Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

1062


Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.

987


Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

1065


What is the difference between amorphous core transformer and CRGO core transformer?.

2766


What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

972