A.由于变频器的输出含有高频谐波，增加了动力电缆及电机的损耗。 B.同时较高的dv/dt会引起数MHz的辐射干扰。 C.如果电机需要长线传输时（电机线缆**过50米），由于行波反射引起电机端电压叠加，使电机绝缘破坏，甚至使电缆爆裂。
SFN3990D-0005-EISF | 5 | 0.75 | 132 | 3 | SFN3990T-0265-EISF | SFN3990D-0005-EISF | 5 | 1.5 | 160 | 3 | SFN3990T-0320-EISF | SFN3990D-0005-EISF | 5 | 2.5 | 185 | 3 | SFN3990T-0370-EISF | SFN3990D-0010-EISF | 5 | 4 | 200 | 3 | SFN3990T-0400-EISF | SFN3990D-0010-EISF | 5 | 5.5 | 220 | 3 | SFN3990T-0450-EISF | SFN3990D-0015-EISF | 5 | 7.5 | 250 | 3 | SFN3990T-0500-EISF | SFN3990D-0025-EISF | 4 | 11 | 285 | 3 | SFN3990T-0600-EISF | SFN3990D-0030-EISF | 4 | 15 | 315 | 3 | SFN3990T-0650-EISF | SFN3990D-0040-EISF | 4 | 18.5 | 355 | 3 | SFN3990T-0700-EISF |
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