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how to interlock 2 incomer,1 buscoupler MCCB,like we interlock an ACB...
pls answer this question and if possible send me the ckt diagram..
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Answer Posted / manikandan
It can be mechanically inter locked using three lock two key syste. Either two incommers can be ON while coupler is of or any one incommer and the coupler is ON at a time
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