| Electronics > Beginners |
| Interference Capacitor Substitution |
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| hgg:
I see. What do you mean connecting them in a triad? Do you connect them like in the diagram above, but you replace the X with another Y ? "Vacuum cleaner has lasted well, 40 years in operation," Indeed! When things were made to last. The brushes are fine and the suction of the vacuum cleaner is super strong. |
| hgg:
Maybe something like the following will be a close alternative to the Miele capacitor. |
| Zero999:
Yes, a capacitor between live neutral, live to earth and neutral to earth, will work. By the way, did the capacitor failure cause either the live or neutral conductors to become in electrical contact with the motor chassis? If so, that's bad and should never happen. Y capacitors should fail safely, gradually reducing their capacitance over time, never shorting or blowing up. In this case it's probably not quite as dangerous, since the motor will already be in a plastic enclosure with and gears or belts, connecting to external moving parts, being made of non-conducting materials such as plastic or rubber. |
| hgg:
In this case we do not have an actual Earth connection, but the floating motor chassis, that's why I was baffled. No, the L N conductors never came in contact with each other. They were spaced apart inside the capacitor with a very strong type of plastic. The capacitor probably failed open because I've never noticed anything while using the vacuum cleaner and the RCD or breakers never tripped. |
| Zero999:
--- Quote from: hgg on November 05, 2019, 06:15:42 am ---In this case we do not have an actual Earth connection, but the floating motor chassis, that's why I was baffled. No, the L N conductors never came in contact with each other. They were spaced apart inside the capacitor with a very strong type of plastic. The capacitor probably failed open because I've never noticed anything while using the vacuum cleaner and the RCD or breakers never tripped. --- End quote --- Sorry, I meant to say chassis, not earth. I was talking about the live or neutral shorting to the chassis via the capacitor. In any case it won't trip the RCD if the motor chassis isn't earthed and it's inside a plastic enclosure, with no possibility of it coming in contact with an earthed object. |
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