I had a problem with a circuitry component on an old potters wheel (probably 30 years old at least) dramatically burning out. A bang, Lots of smoke and breaker tripped. Traced the problem to a small capacitor placed directly across the 230v maybe where the mains first entered the control box. I have removed the capacitor and replaced all the wiring around it which was burnt through. The machine now send to function perfectly and my question is do I need to replace the cap and, if so, what type and value do you suggest? Any marks which there were on the old capacitor
The machine - a DC .33hp motor which states 1.9 A and 220v on the plate. Field and Armature connections into the control box which has a Variac, turned by mechanical linkages to a foot pedal. Two bridge rectifiers - one feeds the DC to the field, the other to the armature. There are also two small caps (which look similar to the one which burnt out). One is across the armature DC feed - the other across the AC connections to the bridge rectifier providing the DC feed to the armature.
There is a small inline fuse and a relay switch on/off circuit safeguarding the use
The machine - a DC .33hp motor which states 1.9 A and 220v on the plate. Field and Armature connections into the control box which has a Variac, turned by mechanical linkages to a foot pedal. Two bridge rectifiers - one feeds the DC to the field, the other to the armature. There are also two small caps (which look similar to the one which burnt out). One is across the armature DC feed - the other across the AC connections to the bridge rectifier providing the DC feed to the armature.
There is a small inline fuse and a relay switch on/off circuit safeguarding the use