Answer / praveen kumar gupta

Bus riser is used in between two buses at same level
connected with a circuit breaker called bus coupler.In this
system one bus is connected with upper portion of the
breaker and lower portion or output of circuit breaker is
connected to bus riser who works to rise the bus on level
of first one.

Answer / raja

Bus raiser are also called as raising mains ,
To reduce cable size, no of cables, easy taping,and also
safety,
to reduce no of cables laying.

sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

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