Answer / a.p.nanjappa

standard says as nearaspossible. we maintain just the
outlet of power transformer bushing-10m for all
400,230,110,66,33,11kv.
we adopt counter and mA indicator in the LA grounding,
LA grounding is separately connected to main earth
grounding system

1.what is the reason for transformer and lightning arrester blast in 33kv system

0 Answers   ABB,

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how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

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Is it necessary to place tap changer in secondary winding or we can use on both sides?

3 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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Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

2 Answers  

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What is the difference between UPS and SMPS?

7 Answers   Mukand, NightFox,

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why earth fault current is always less than the o/c

2 Answers  

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why electric shock due to dc is dangerous than that of ac

44 Answers  

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some basic standard questions on transformer.

0 Answers   United Engineering,

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what is the technical diffrences of mccb and acb

11 Answers   TransWorks,

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How we can calculate what type of supply we need for an example sometimes we take 11 KV and sometime 33KV from EB ?

4 Answers  

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what will happen when two dc motors are connected to each other and anyone of them rotated?

1 Answers  

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