Answer / sridharan

Vector group means it define the primary & secondary side
connection type of the transformer says D for the delta
connections & Y for the star connections then the 11 stands
for the phase displacements between the primary side &
secondary side.In the sense in a clock while 11 o clock
shows the angle between the small needle & big needle will
be 30 degree, so the phase displacement will be 30 degree.

what is earthing.how we make it,describe briefly.

0 Answers   HAL,

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1 Answers   Siemens,

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. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV?

3 Answers  

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slor cell made?

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requirements for making parallel operation of Uninterrupted power supply

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2 Answers   Bhel,

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8 Answers  

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6 Answers   Vatika,

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how much insultion resistance 11kv cable.

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Why is back emf used for a DC motor? Highlight its significance.

0 Answers   ABB,

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WHY TRANSFORMERS ARE RATED IN 11KV 22KV 33KV Instead off 10kv 20kv 30kv

5 Answers  

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