Why NGR is provided in sub station?

4 Answers   MMS,

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I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 Answers  

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what is the difference between DOL starter&star-delta starter& automatic star-delta starter

2 Answers   Dalkia, GSK,

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what is the effect when the shunt field winding is opened in dc shunt motor (i) at the time of starting ? (ii) in running condition ?

4 Answers  

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How can calculate thermal overload in relay?

1 Answers   ABB,

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in non technical way how can u define POWER FACTOR??

0 Answers  

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why we not connect the 12 V batteries in parallel to get the more backup supply for an UPS ? wheter off line or on line UPS ?

2 Answers  

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Does induction motor start with dc power supply????

4 Answers   Essar,

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60 watt bulb and 1500watt iron which device has more resistance & why

5 Answers   RMSI,

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current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

0 Answers  

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E.B sending end to receiving end 33kv ug cable laid 8Km,receiving end to ss1,ss2,ss3,ss4 all are Approx 800 Mtr,can go for 33KV to 430V or 33kv to 11kv in receiving end and 11kv to 430 near ss ,which one is good for technically and economically.

1 Answers   JLL,

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what is the function of an auto reclosure relay in OHL?

1 Answers  

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