When to use Oil Transformer type and When to use Dry type? What is the difference between both?

2 Answers   ABC,

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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

0 Answers  

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MCCB 400 Amps 50KA 430Volt AC What is mean by 50KA

16 Answers  

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Why ELCB trip, when neutral touch with ground?

1 Answers  

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iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]

1 Answers  

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why DC is not generated instead of AC?

4 Answers  

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what difference beetwin phase voltage & line voltage and phase current& line current ?

1 Answers  

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why double earthing is required for welding machine & electrical tools.

7 Answers  

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Which Kind of machines(in terms of poles) give the smoothest DC

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How to use earthing on shipments.

0 Answers  

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Electrical Engineering

0 Answers   Gamesa, Medha Servo,

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Explain how to determine capacitor tolerance codes?

0 Answers  

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