Answer / sridhar

1. to identify the source & the destination
2. to identify the classification of Zones.
3. identify the shortest / nearest route to avoid max.
length of the cable & to avoid road crossing
4. to select the cable size wrt load & route length
5. to select the cable size wrt load, calculate the
starting & running voltage drop.

How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??

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