Difference between revisions of "怎样考取低压电工证理论篇"

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怎样考取低压电工证理论篇 (view source)

Revision as of 17:14, 19 August 2024

No change in size ,  19 August
→‎辨异
; 接法
: 三角形 相电压=相电压，线电流=根号三倍 相电流
: 星形  线电流=相电流，线电压=根号三倍 相电压，线电流=相电流
 
== 理论 ==
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