co 回复：三相变单相容易，单相变三相难，不是不可以，能实用的超贵，

来源: 于 2012-07-26 11:40:01 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

just pass the 3 phase heater. To convert from 1 phase to 3 phase, a converter need to convert 1 phase AC to DC and then DC to 3 phase AC. These electronics (power) will be easy to broken (lots of heat generated during the conversation).