How to size the Neutral grounding resistor?

1 Answers  

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1. which type of transformer connection is preferred in case of power supply transformers? (A) Star/Star (B) Delta/Delta (C) Star/Delta (D) Zig Zag/Star 2. In a power transformer usuall which winding is closer to the core? (A) Primary winding (B) Secondary winding (C) Low Voltage winding (D) High Voltage winding 3. The power factor of a purely inductive load is (A) Zero (B) Lagging (C) Leading (D) Unity.

9 Answers   CECRI_Central_Electrical_Research_Institute,

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we can conformed the vector group of the transformer. How?

0 Answers  

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how we can know the rating of transmission line by no. of insulators disk ??????????

3 Answers   NTPC,

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What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?

0 Answers  

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hi can anyone pls tell me the eee interview core questions asked in l&t

0 Answers  

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if single phase is having 220v supply then why three phase is having 440v instead of 660v?

4 Answers   C&S, NTPC,

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What is hysteresis loss?

1 Answers   PWD, SPML,

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What is the arc. I saw word arc in between sf6 & vcb brakers

1 Answers   Cap Gemini,

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How does flights get the neutral(grounding)

1 Answers  

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how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

0 Answers  

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What is the meaning of transformer 16 / 20 mva. 

1 Answers  

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