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

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why CT ratio stand for 50/5, 100/5, 25/5.

11 Answers   ABB, Ramky,

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In a 11Kv/433Volt Delt-star step down transformer one one line(Line-B) of HT site is open & earthed on DP structur. What will be the voltage on LT side R-Y, Y-B,B-R and R-N, Y- N & B-N?. Please help to understand the problem with examples. Arvind , Jaipur.

1 Answers  

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dg earth connect only in the amf panel or not why

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what is the VA(Volt-amphere)? define with calculation?

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please send me previous year questions of jspl through which i could prepare myself for the test.

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What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

0 Answers  

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what is automatic voltage regulator and it is used?

28 Answers   ACME, TCS,

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what are types of encoder

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how to calculte capacitor range for single phase induction motors??pls tel

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ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH

6 Answers  

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what is voltage,current,restance,. what is single phase&three phase motar. what is basic electrical 'farmoulas. what is defirens quetions of electrical maintenance.

2 Answers  

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