The special structure of a new three-phase pipe-type tap changer is introduced. The weaknesses in the structure of drum-type tap changer are given.
介绍了新型三相管型开关的特殊结构，指出了鼓型开关结构中的不足之处。
The special structure of a new three-phase pipe-type tap changer is introduced. The weaknesses in the structure of drum-type tap changer are given.
介绍了新型三相管型开关的特殊结构，指出了鼓型开关结构中的不足之处。
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