我这里有台威特力ZX7-400的焊机，故障现象是电流慢慢的增大。开始电流是80A，焊接时电流一点一点的增大。关掉电源又恢复80A。以此反复。
请问是这么回事，哪里出了毛病。还有这种主控板哪里有卖的。我的QQ是20962417
熟悉《威特力ZX7-400焊机》的朋友帮帮忙
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@jinjia147
[图片]
IRFP460,SIHG20N50C-E3,2SK2698,2SK2837,2SK4107,2SK4108,
TTK2698,TTK2837,FMH23N50E
IRGP4063D,IRGP4068D,SGH40N60UFD,FGH40N60SFD,SGH80N60UFD,
IKW50N60T,IKW75N60T、FQA11N90C,FQA9N90C,2SK2611,2SK3878
IGBT:FGL40N120ANTD,FGL60N100BNTD,IKW40N120T2
IRFP450,IRFP460,IRFP460C,FMH23N50E,SIHG20N50C-E3
D92-02,D92M-03R,FML-4204S,FMD-4204S,FMX-4202S,
FMXS-4202S,FFA30U20DN,FFA30U40DN,FFA60UA60DN
SG3525,TL494,LM324N,LM358,LM393,CD4013BE,CD40106BE,
KA3525A,CA3140EZ,L7805CV,L7812CV,L7815CV,L7915CV,BTA12-600BRG,
BTA26-600BRG,BTA41-600BRG
UC3842,UC3843,UC3844,UC3845
IRFZ24N,IRF9Z24N,IRFZ34N,IRF9Z34N,IRF530N,IRF9540N
2SK3324,IRFPE40,IRFPF40,IRFPF50,IRFP250N,IRFP260N
2SK2837,2SK4108,TTK2837,SIHG20N50C-E3,IRFP460,FMH23N50E
IGBT:IRGP4063D,IRGP4068D,SGH40N60UFD,FGH40N60SFD,SGH80N60UFD,
IKW50N60T，FGA25N120AND,HGTG11N120CND,IHW15N120R2,IHW40N120H3
专业 逆变焊机 配套方案，请各路朋友多多关照！
Tel：136 3167 9963 QQ：731176284
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@电源配套元器件
IRFP460,SIHG20N50C-E3,2SK2698,2SK2837,2SK4107,2SK4108,TTK2698,TTK2837,FMH23N50EIRGP4063D,IRGP4068D,SGH40N60UFD,FGH40N60SFD,SGH80N60UFD,IKW50N60T,IKW75N60T、FQA11N90C,FQA9N90C,2SK2611,2SK3878IGBT:FGL40N120ANTD,FGL60N100BNTD,IKW40N120T2IRFP450,IRFP460,IRFP460C,FMH23N50E,SIHG20N50C-E3D92-02,D92M-03R,FML-4204S,FMD-4204S,FMX-4202S,FMXS-4202S,FFA30U20DN,FFA30U40DN,FFA60UA60DNSG3525,TL494,LM324N,LM358,LM393,CD4013BE,CD40106BE,KA3525A,CA3140EZ,L7805CV,L7812CV,L7815CV,L7915CV,BTA12-600BRG,BTA26-600BRG,BTA41-600BRGUC3842,UC3843,UC3844,UC3845IRFZ24N,IRF9Z24N,IRFZ34N,IRF9Z34N,IRF530N,IRF9540N2SK3324,IRFPE40,IRFPF40,IRFPF50,IRFP250N,IRFP260N2SK2837,2SK4108,TTK2837,SIHG20N50C-E3,IRFP460,FMH23N50EIGBT:IRGP4063D,IRGP4068D,SGH40N60UFD,FGH40N60SFD,SGH80N60UFD,IKW50N60T，FGA25N120AND,HGTG11N120CND,IHW15N120R2,IHW40N120H3专业逆变焊机配套方案，请各路朋友多多关照！Tel：13631679963QQ：731176284
分流器（电流互感器）不好，
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