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show the single line diagram of star delta starter with single phase preventer
how to select automotive wire by mathematical equation with given current, vlotage and resistance
In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.
In CTs tan delta point should be earthed , what is the reason behind it?
which type of motor is used in automatic swing gate
We have a couple of oil tanks at our plant. One of them does not have a lightning arrester installed. My question is it necessary to install an arrestor on every tank or will this particular one be covered by the arrestor installed on the ajdacent tank, Since all the tanks are close to each other. Basically, I want to know that if these arrestors or protection works in a parituclar area of effect or influence. Thanks
Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.
i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?
Formulae for calculating the transmission line losses for different voltage levels
wish of these transformer uses oil?
what is meant by rotating magnetic filed
how to increase or decrease speed in DC shunt motor by DC convertor
I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.
what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?
What is mason's gain formula?
