How to design grid earthing

1 Answers  

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what is numerical relay explain its operation

2 Answers   ABB,

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11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

0 Answers  

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What is the life of MCCB

1 Answers   Siemens,

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How to test REF relay testing for LV panel as per Kahramaa standard?

0 Answers  

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What is diference between ELCB & ELMCB?Also how its application for use in design area?

2 Answers  

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In three pin socket normally three pin in between three pins earthing point is more thickness why?

6 Answers  

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what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

0 Answers   Areva,

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Can a 150 kva 3 phase,440v/230v delta-wye connection stepdown transformer can be used in reverse as a step up tranformer ?

3 Answers   Meralco,

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what is the isolation transformer. what is the isolator?

0 Answers  

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Difference between DOL starter & star Delta Starter? And where the Dol starter used upto how much HP and whereas Star Delta vice versa?

3 Answers  

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If a contactor need to replace with faulty one. what I want to check?

2 Answers   Bhel,

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