A very strange fault i cam across today,that i never experienced not studied before, i need an answer for this. Phase to phase or line to line , L1,L2 & L3, voltages are 490VAC, but if i use line to ground , its again 490 VAC. . . whats the fault and theory behind of it?

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which material used in railway track

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I am preparing for Assistant Motor Vehicle Inspector exam.If any body having old question papers please sarathnbr@gmail.com.

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plz get me the placement paper for the hindalco industries Ltd. plz mail it on ashishkmishra15@yahoo.co.in

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