A guess is that perhaps the instrument (being inexpensive) is measuring the PEAK of the current waveform for current. And your MOT is drawing a very high peak current, yet a low RMS current.
The weird thing I noticed is that the measurements of volthe and amperage I got with my multimeter was RMS values. I used it to measure the fan. And the device measured the same as my multimeter did.
Sounds like your instrument is good for measuring power when the current draw is sinusoidal. But is not good when current draw is drawing high peak and low RMS current.
Such as a rectifier circuit draws high peak current.
The transformer can only supply current to the load while the transformer voltage is above the capacitor voltage. At all other times the capacitor supplies current to the load.
Since all power ultimately has to come from the transformer and the diodes only conduct part of the time then the curre...
That's alright. But Thank you very much for explaining all of this to me. I really do appreciate it. I love learning about this stuff. So even just a little bit can help push me forward in my learning.
@Marla: It's a beautiful area. About 30 miles from where I live. The gray splotch across the valley there is where they used to make slate roofing shingles.
@ScientistSmithYT If you have something like a true RMS multimeter, you could use it in voltage mode across the output of your current transformer. The RMS voltage should be proportional to the RMS current. Measure your fan that way first.
Smith didn't say whether he has rectification after transformer. If the transformer did saturate, yes, there would be high peak current, and I think that would trip the household circuit breaker!as well. So that is why I guessed he had rectification with huge capacitor.
Hello everyone, I'm new on this part of StackExchange, I'm trying to identify 2 cable connectors from an AC I have at home, would it be the right place to post picture and ask for some help here ?
regarding the one on the right of the picture it's written B18 on the connector and pin are numbered like this : FAF,2,3,4,5 For the one on the left: there's nothing appart from a small arrow probably just not to mistaken.
When looking for replacements, the key patterns (plastic protrusions that help make sure you don't insert the connector wrong) are the other major thing to look at
@Kiwy If either board isn't too hard to remove, you could try measuring the holes on the bottom of those boards - it'll be a bit more obvious with the 3-4 extra holes if the spacing is 2.5mm or 2.54mm
@Kiwy Yeah, 2.54mm = 0.1 inch, and it can be pretty hard to tell the difference between them visually. On anything with more than 2-3 pins, you run out of play in the system and it starts to get tight/hard to fit.
@W5VO well yes however no luck on that side, I will contact the brand
yes indeed I'd rather buy the whole mounted cable plus connector, because it seems like a lot of money to buy specific connector plus the tools to use them
Thank you for your help @W5VO I've contacted the builder to know what type of connector and cable it is and if they can sell it to me.