why the admittance matrix or y bus matrix of a large network is called sparse matrix?

3 Answers  

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armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

0 Answers   APTransco,

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what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

0 Answers  

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Why transformer rating in KVA? and Generator also?

6 Answers   Bhel, IEEE, Toyo Denki, Toyo Engineering,

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In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?

0 Answers  

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Motor running trough VFD, if voltage reduced speed will be?

4 Answers  

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what was the function of the auxillary relay?

3 Answers  

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Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  

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how to find the torque of the single phase synchronous motor by doing an experiment

0 Answers  

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Then what do you call a transformer that is installed on the ground?"

1 Answers  

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why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?

0 Answers   Grasim,

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The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

0 Answers  

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