11/9/2017 6:18 AM | |
Posts: 1 Rating: (0) |
Dear All, We have faced an issue on the simovert inverter 6SE7038-6WK60 B which is that its IGBT(FZ1200R16KF4) of red phase got ruptured(burst) that also caused damage to firing card.Which caused us more than 8 hours downtime on our draw line machine of polyester fibre. This inverter is being fed through a separate converter with 10 other inverters connected to same DC bus bar.Inverter input voltage are 950 Volts DC. Same kind of incident occured on such other inverter a month earlier which is also connected to this common DC bus bar. We want to know the reason that may have caused these two events of IGBT rupture and can there be any preventive measure to avoid this in future? ------------------------------------------------------------------------------------------ |
Last edited by: CS Moderator at: 11/9/2017 10:31:31 AMNew subject after splitting |
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12/12/2017 5:36 PM | |
Posts: 29 Rating: (0) |
Change the IPI board. It happen due to Opto coupler aging which was in IPI board. |
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