3 phase full wave 3 scr and 3 diode gate controlled SCR exciter assembly load test: I/p to the ASM 3 phase AC 62V, 48 HZ to 227V,128 Hz. Output DC 125A continuous and 145 Amps for 5 min to be loaded. [o/p is actually connected to Main alternator field winding of resistance 1.38 ohm for excitation]. What are the alternative methods to conduct load test without alternator field winding.