A 100 k VA. 415 V (line). star -connect ed synchronous machine

A 100 k VA. 415 V (line). star -connect ed synchronous machine generates rated open circuit voltage of 415 V at a field current of 15 A. The short circuit armature current at a field current of 10 A is equal to the rated armature current. The per unit saturated synchronous reactance is

Synchronous line impedance,

=	open circuit line voltage
	√3 × short circuit phase current

table> = 415 = 1.722√3 ×

100 × 100

√3 × 415