How do you select a cable size(Cu&Al) for a particular load
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Answer Posted / bala
verify motor capacity or kw
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Why armature rheostat is kept in maximum position?
sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls
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 rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
what is the necessity of under ground cables ??
If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
what is the purpose of shading ring or shading coil in electrical equipments.
My load is 1635 KW. & current pf is 0.884, I have to improve it for 0.99.Please suggest what KVAR value is needed?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
why single phase to grd test in HV cable?why not 2 phase at a time?
either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?
Write down the design procedure of commutaj.
In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
draw the block diagram of fire alarm?
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
