濟南變頻器維修：變頻器本身就是干擾源 透過動力線來干擾其他電器元件 要解決此干擾有效的方法就是有效接地 接地的目的就是要將此雜訊(電場造成感應電)排除 無法排除還會亂竄當然就故障原因
Jinan frequency converter maintenance: the frequency converter itself is the interference source, which interferes with other electrical components through the power line. The most effective way to solve this interference is to effectively ground. The purpose is to eliminate this noise (induced electricity caused by electric field). It can't be ruled out, and it will also run in disorder. Of course, the cause is the fault.
A 動力線截面積不夠尤其接地線 無法將感應電排除
A. the cross-sectional area of the power line is not enough, especially the ground wire cannot eliminate the induced electricity.
B 整場接地線帶電 不僅無法排除 還反相進入
B. the electrified ground wire of the whole field is not only unable to be excluded, but also enters in reverse phase.
C 火線當零線用 造成電柜漏電
C. leakage of electric cabinet caused by the use of live wire as zero line
D. short circuit leakage caused by the rupture of power line cladding.
1. The insulation of the motor is damaged, resulting in a short circuit to the ground;
2. Wiring errors, such as PE and N, lead to leakage;
3. False alarm caused by strong interference around;
4. The ground wire is not correctly connected, or the ground resistance is not enough.