Answer / raja

BIS 3043 , IEEE 80 is for AC substation earthing. Apart from
this for lightning protection IS 2309 , IEC 61024 , BS 6651,
etc.

Answer / vrishali ajagaonkar

For earthing calculation IS-3043 & IEEE-80 are using. i dont
have idea about IEC.

To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

0 Answers  

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what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 Answers  

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How to determine the short circuit current for breakers and VCB.

1 Answers   Sabic,

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1 Answers  

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0 Answers   GVK, Thermax,

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1 Answers  

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what is dc system? how getting pulse from rectifier?

1 Answers   ETA,

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2 Answers  

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0 Answers  

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1 Answers   TATA,

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1 Answers   Chemanol,

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0 Answers   GSECL, L&T,

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