Transformer burnt while installing cap banks
Transformer burnt while installing cap banks
(OP)
Hi,
We were adding a step capacitor bank (each 600KvAr) to one of our customers. Out technician was installing it was stepping in and out Capacitors simultaneously in a way that did burns the main transformer. Is there any suggestion what can be the cause of that?
Note that the customer did have this transformer working for 5-7 years with no problem, and he has some nonlinear loads in his system.
We were adding a step capacitor bank (each 600KvAr) to one of our customers. Out technician was installing it was stepping in and out Capacitors simultaneously in a way that did burns the main transformer. Is there any suggestion what can be the cause of that?
Note that the customer did have this transformer working for 5-7 years with no problem, and he has some nonlinear loads in his system.






RE: Transformer burnt while installing cap banks
RE: Transformer burnt while installing cap banks
RE: Transformer burnt while installing cap banks
How long have the capacitor banks been on before the transformer failed?
RE: Transformer burnt while installing cap banks
RE: Transformer burnt while installing cap banks
Second when swiching back to back capacitor banks there is some inrush between the banks. The energized bank can discharge into the energizing bank very quickly. There could be some issues with that. These banks seem small for that but it is a possibility. You could intorduce some resistance in the switch to limit that inrush.
RE: Transformer burnt while installing cap banks