How earth fault & earth leakage equvpment are works?
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Answer Posted / a.arun
how to calculate current carrying capacity for cables?
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How to select a contactor? How many types of contactors are available
define displacement & magnitude ?
what is mathed of check the D.C MOTOR 181 KW (ARMATURE AND FIELD) WHAT IS THE MATHED OF CHECK THE THYRISTOR MODULE (HIGH CURRENT)
Difference between shunt, PMG and AREP excitation. Which is the most reliable between PMG and AREP.
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The slip when motor stalls is A 1 B 0 C 13.33% D 10.33%
WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?
current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer
in non technical way how can u define POWER FACTOR??
how to carried out tan delta test in 11 KV alternator ?
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
What are the advantages and disadvantages of the ac motors?
we are having 15kw and 3kw motor both can run in same time , instead of using copper we are using ug aluminium cable , 35 sq.mm is suitable for its current carrying capacity..?
why do we put a transformer on soak before loading it
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
What is the phase relationship between the primary and secondary voltages of a transformer?
