May 3, 20215 yr Hi, could someone please tell me if any of the igbt's in the pic can be a possible substitute for GW45HF60WDA. I have an Axpert /mecer 1.5kva 12v hybrid inverter with 4x ST GP4063D blown and 5x GW45HF60WDA blown.
May 3, 20215 yr Solution Hi Wayne I would use the "irgp4066d" as a replacement for the "gp4063" and "stgw80h65" as a replacement for the "GW45HF60WDA ". They have a better rating. I use them on the 4kw inverters I repair with no problem, remember to check the igbt gate drivers as well. hope this helps regards
May 4, 20215 yr Author 7 hours ago, Dewald Brink said: Hi Wayne I would use the "irgp4066d" as a replacement for the "gp4063" and "stgw80h65" as a replacement for the "GW45HF60WDA ". They have a better rating. I use them on the 4kw inverters I repair with no problem, remember to check the igbt gate drivers as well. hope this helps regards Great help thanks Dewald. What could be the most common cause for all 9 to blow and another thing that puzzles me is the 5x igbt's, I understand the working of 4 or 6 but 5?
May 4, 20215 yr HI Wayne Sure no problem, I can not say for sure what will cause all of them to fail. have you removed them from the board? I have had some of them measure short when in circuit but ok out of circuit this is because the all run on the high voltage bus. from what I can tell the 4 x irgp4066 igbt's functions is to generate the 230V sine wave in inverter mode. The 5 x Stwg80h65 are used in two ways, in inverter mode they act as a bridge rectifier, when the unit is in charging mode they act as a power supply to charge the battery. I had a unit fail because of two smd resisters 2x10 ohm and 2x100ohm failing on the gate driving circuit of the power supply side. The problem is that if one igbt fail on the high voltage bus it will overload the rest and this could cause them all to fail hope this helps,
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.