the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?

1 Answers  

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how u change the vector group of a transformer like DYN1 to ynd11

2 Answers  

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What does dny11 stand for?

5 Answers   Cenored,

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how to can we synchronize different capacity of DG sets.60kva& 250kva?

2 Answers   Power Plant,

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why two point starter,three point starter, four point starter cannot be used for A.C machines?

2 Answers  

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What is AMP and KA in a MCCB and MCB

2 Answers  

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

15 Answers   Bhel, Sail, Sterling Telecom, TCS,

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what is the Auto Mains Failure Panel function in DG?state its function?

3 Answers  

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explain how to protect high rise building from the risk of lighting.

1 Answers  

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How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

1 Answers  

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Explen all type electrical protection ? like O/C,E/F,NPS,VOLTAGE UN BLANCE,CURRENT UN BALANCE,NAGETIVE PHASE SEQ,AND ETC...............electrical Protection

6 Answers   Reliance,

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Why TAP changer provided in primary side of HT transformer ? and why not in secondary?

9 Answers   ABB, Reliance,

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