Answer / perwez

it is a type of distribution system , where the load or
transformer are connected in a ring , when there is a power
failure frm one source the power can be restore frm the
other source in no-time in this type of distrubution a
special unit it connect called RMU( ring main unit)

Answer / tharan

ring.... are two incoming and one outgoing.... if any one incoming source problem r preventive maintenance another circuit we can do on manually....

Answer / revathi

this is one of the type of feeder(over head line) ie ring
main feeder.

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6 Answers   TNEB Tamil Nadu Electricity Board, wbsedcl,

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need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

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0 Answers   Engineers India Limited,

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