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To measure insulation resistance of 11KV cable between core & armour, what should be the test voltage & duration?
4 14680I have draw the 350A DC current, so what is the size of cable i can use? Give me the answer with formula
1 4446Sir, I have applied for the of Assistant.engineer of NPDCL. please send me all AP TRANSCO AND JENCO solved papers of previous exams . I requested send me the papers to my id as soon as possible (rajanikanth_peddi@yahoo.co.in) (This is very urgent) Thank You,
2907WHAT IS MEANT BY vfd(VARIABLE FREQUENCY DRIVE )HOW CAN WE APPLY VFD TO MOTOR ? I WANT FULL DETAIL IF ANYBODY KNOW THE WEBSITE FOR THAT PLZ SEND .THANK U
2 7339Any one Give me formula for to increse the power factor, 0.8 to 0.95, How much the KVAr Required
9 13301A heater capacity is 3.0 KW on 415V . if supply voltage is 380Volt . what is heater capacity on 380volt . and how calculate and give formulas . Prakash veer singh Roto power Engg.
5 11332Post New Electrical Engineering Questions
how a flip flop can be used as a latch?
what is meant by motor startup supervision & motor load jam protection ?
What is the importance of counter based plan & how is it scheduled?
What is meant by RVT and NDR ? expansion and details of it
Why 3 phase induction motor getting supply in body if one of it's phase is cut
Why is back emf used for a DC motor? Highlight its significance.
what is the question paper model for section engineer in RRB
What are the raitings of Mcb,mccb and Acb in detail ??
how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.
Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain
What is mean by hot and cold loop testing? What is the difference between them?
How you calculate the repturing capacity of a HRC fuse
Air circuit breaker safety
Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?
