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在营业普查的过程中 ,我们发现基层所站的有些工作人员对两相 380 V电焊机的计量原理搞不清 ,不能按照正确计量方式进行接线。现就接线方式及对应向量关系进行分析。图 1 正确计量方式接线图1 正常计量接线方式图 2 错误接线向量图 图 3 正确接线向量图( 1) 理论分析
In the process of business census, we found that some workers standing at the grassroots level did not understand the measurement principle of the two-phase 380 V electric welding machine and could not conduct the wiring according to the correct measurement method. Now on the wiring and the corresponding vector analysis. Figure 1 Wiring diagram of the correct measurement method 1 Wiring diagram of the normal measurement Figure 2 wrong wiring vector diagram Figure 3 Correct wiring vector diagram (1) Theoretical analysis