Answer / parijaat

power load means the highest power that a plant can use,and
lighting load means the minimum power to maintain emergency
process running in a minimum load.Suppose a steel plant
requires 20 mw power to operate completely,then 17/18 mva
power is its power load,and 2-3mva load to operate emergency
processes in running condition,so it is its lighting load.

Answer / manimaran

The power load is nothing but bulk amount of power(huge
power) using in industry.lighting load means small amount
of power using particularly lighting load only.

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