I don’t want this too be too late so just gonna throw this up rn and edit it later with my notes later so look forward to learning about capacitors :)

Fuck it we ball, capacitors what I know of them is they help motors start. In HVAC we got two of them run capacitor a and start capacitors. Motors that are aren’t 3 phase need a phase shift to get them going. Thing is motors need power coming in to be just right if a start capacitor is left running it will draw locked motor amperage and shut it all down so it’s put in series with a PTC relay (once this gets too hot it opens and shuts off power to the start capacitor) letting just the run to do it’s thing.

Capacitors need to be tested by isolating and discarding them and checking for capacitance in microfarads. The rating is usually on the capacitor and needs to be within ±10%. On the capacitor the voltage is supplied too with 2 different values. The higher value is the real one so this means you can use it on a size lower if you want. I’ve heard of testing them under load to fully get how they work,you take amperage on the start winding then multiply by 2652 then divide voltage across the capacitor to check if it’s good.

Anyway capacitors got oil in them to dissipate heat, thin plates of metal and plastic between them to insulate. These are used to store power, try not to fuck with them even unplugged they can still hurt you. The oil can also be an issue obvs. Anyway they store and discharge voltage they don’t boost it, at least in ac systems. If you read a higher voltage it’s most likely back EMF generated from the motor as it runs. Anyway you gotta take this into account when sizing relays.

One more thing capacitors when wired in series will have reduced capacitinace, 1/C +1/C but wired in parallel you just add them C+C. Probably doesn’t mean much to people but for electricians it’s useful if you don’t have the right size. Only connecting them in parallel is probably the only reason to do it practically.

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  • catter [comrade/them, she/her]@hexbear.net
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    3 days ago
    relationship stuff, trauma

    Couples counseling is the hardest emotional labor I have ever done. It makes me so anxious that I’ve been getting heartburn 😮‍💨 It’s terrifying for me because I am working through what I’m finally starting to acknowledge is childhood trauma. I’ve been repressed and emotionally manipulated by unavailable parents my whole life, and now I have to reckon with that.

    It makes gender identity so much harder to grasp when basic autonomy is something I have to force myself into. I’ve never been allowed to make my own choices, so now the choices only I can make are some of the hardest. It’s so discouraging and makes me doubt my gender identity even more, despite getting gender euphoria and gender envy from femme-aligned things/people.

    Anyway, just posting this to feel like I told someone. It’s very lonely being closeted and too scared to even experiment with my expression. Telling anyone I know would upend my whole life 😮‍💨

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      You’re certainly not alone. For me, I feel like a lot of the reason I feel so disconnected from my own emotions is because of repression of gender identity. But that doesn’t mean it makes dealing with identity or expression easy, even if I’m out to my immediate family and friends (to varying degrees). I can’t imagine trying to work through this without having anyone IRL to be supportive or trying to get through couples counseling like that. I hope you are able to overcome your traumas and get to the point your are comfortable expressing yourself.

      • catter [comrade/them, she/her]@hexbear.net
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        3 days ago
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        Thank you 💜 I know many people who would want to be supportive, but few of them are actually in a position to really support me. I have to hang onto the idea that there is a better world with a better me in it. One of the things I have learned is that I have never imagined what my future could look like because life has always just happened to me.

        I’m determined to beat this. I’m just scared what that will truly require of me.

        Thank you for your support and acknowledgment 💜