Answer / tareq harb

leading power factor means that the generators is sucking
reactive power instead of producing it, which leads the
alternator to overheat causing the windings insualtion to
melt which defenitely will damage the alternator.

Answer / karthik_elec

simple, when ur load running in leading powerfactor the
amount of load current will reduce, because
p=root3*v*i*cos pi,
when cos pi increase, root3 voltages are same, so this will
not affect only the current, current automatically reduce,
thats y in indian electricity board concentrate the pf.
becuse it will increase the life of the load conductor, and
reduce the losses, you can see in some industry. in load
side they connect some capacitors for improving the power
factors, in india any industries reduce the pf upto 0.85
electricity will fine that company, if any company improve
the powerfactor above the 0.9 electricity will reduce the
bill amount certain persentage

Answer / felixraj

due to leading current load acts as source aslo alternators
AVR loose their controls

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