Figure 7 shows that the fundamental loss, which is
denoted as “w Filter” is almost same for both motor,
however, total loss, which is denoted as “w/o Filter” of
SMC is larger than that of electromagnetic steel
B. Loss of the Core
The iron loss of the assembled stator cores is measured.
B-H analyzer with current amplifier (IWATSU SY-8258)
is used to measure iron loss of actual core without
windings. The principle of the measurement is a
transformer as shown in Fig. 8. And, the picture of the
measurement system is shown in Fig.9.