Whether the vacuum contactor requires Short circuit
protection?If No,why?
No Answer is Posted For this Question
Be the First to Post Answer
like the transformer another electrical static device which operate on same priencipal?
13 Answers Power Grid, Vishal Transformers,
why HT line voltage is multiple of 11.eg11kva,33kva,132kva
i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors
what is the difference between KW and KVA?
To determine the Healthiness of Insulation we will be performing Dielectric tests i.e Insulation Resistance test, Partial Discharge test,Switching Impulse, Lightning impulse, Tan Delta test ...etc why we required to perform this many test, why cant we do only one test. for Transformer, CT's
Why we are always only used 11 kv. , 22 kv ,33kv in transmission line? Why not use 25, 55 ,65 kv ?
3 Answers Khidmah LLC, Precision Camshafts Limited,
why we step down the voltage from 440 to 220 in machines
why the colour of insultor stack , petticoat is brown. Is it has some technical reason.
(In MEP services) HVAC in AC Plant room what else can we provide if the chiller is not considered?
what is main parts of alternator.
We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.
Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it