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what is bus post insulator and its applications in substations

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difference between ground,neutral and earth?..

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DRAW THE DIFFERENCE BETWEEN GROUND AND NEUTRAL IN BOTH SINGLE PHASE AND THREE PHASE?

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Calculate torque developed by the 3-phase, 5 H.P., 4 pole induction motor runs at 1500 rpm A 23 N-m B 21 N-m C 10 N-m D 0 N-m

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give me name of current and volatge control device

1 Answers  

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what's transient & sub- transient reactance means?

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Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.

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When oil level in the oltc of power transformer reduces , oil surge relay will act or not

4 Answers  

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We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.

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why auto transformer connected in star?

1 Answers  

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Earth leakage relay basic knowledge principle

0 Answers   Radiant,

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over frequency is the protection of turbine or alternator?

2 Answers  

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