How to test lightning Arrester?

0 Answers  

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how the 12 pulse rectifier is made?

8 Answers   Engineers India Limited,

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The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

0 Answers  

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Differentiate between Zero and Negative sequence current

0 Answers  

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What is the resonant peak?

0 Answers  

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ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

0 Answers  

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If our power factor is lagging then who is in profit? I mean consumer or Supplier!

1 Answers   Sail,

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generally in LT and MV motors we are using 3.5Coresx16,25,35,50 etc cable for supply.although motors is earthed at two point and having all protection.then why we are using that 1/2 core for earthing the motors.while in HT cable we are using only 3core cable for motor supply.generally lt and mv motors are delta connected and ht motors having star connection.whethere it is having any relation with winding connection( star or delta).all motors i am talking about are dol only.can anybody solve my confusion.thanks...

0 Answers  

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What are the different protection systems takes place on control panel board?

7 Answers   BSNL,

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What is the difference between LT CT & HT CT?Can we use indoor type transformer as an outdoor type or vice versa?

2 Answers   Bhel,

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what is the difference between self excited & seperately excited ?

3 Answers  

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What is the role of the 50 STUB protection at a GIS 400KV substation with SIEMENS protection relays?

0 Answers   Power Plant,

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