Phase angle of energizing voltage α

Maximum value of estimated R_w

Minimum value of estimated R_w

Average value of estimated R_w

α = 0˚

460 Ω

250 Ω

385 Ω

α = 45˚

580 Ω

280 Ω

418 Ω

α = 90˚

570 Ω

370 Ω

451 Ω