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Post by Deleted on Apr 22, 2022 8:41:44 GMT
I've acquired an Airlink 230/230v isolation transformer. Neighbour left it behind ages ago.
I knew it didn't work but not sure why so popped the top off and there is a large capacitor on a terminal block which is in the line to the circuit breaker (20a breaker). The device has a 16a socket.
This capacitor has broken apart. It's quite big about an inch across. One of the disc shaped ones not cylindrical.
Just wondering if anyone knows what item I need to replace it. I did send an email to the manufacturers but not had a reply as yet.
It'll probably work once the cap is replaced. Other option is bypass the breaker but that's not ideal.
Big electrolytic capacitor by the looks of it but not identifiable.
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Post by Isambard Kingdom Brunel on Apr 22, 2022 12:31:56 GMT
I've acquired an Airlink 230/230v isolation transformer. Neighbour left it behind ages ago. I knew it didn't work but not sure why so popped the top off and there is a large capacitor on a terminal block which is in the line to the circuit breaker (20a breaker). The device has a 16a socket. This capacitor has broken apart. It's quite big about an inch across. One of the disc shaped ones not cylindrical. Just wondering if anyone knows what item I need to replace it. I did send an email to the manufacturers but not had a reply as yet. It'll probably work once the cap is replaced. Other option is bypass the breaker but that's not ideal. Big electrolytic capacitor by the looks of it but not identifiable. Most likely its a NTC resistor/thermistor to control current inrush. Will not be an electrolytic cap. |
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Post by Deleted on Apr 22, 2022 12:55:02 GMT
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Post by Deleted on Apr 22, 2022 13:57:58 GMT
Thanks for that. I just assumed was a capacitor as it looked like one.
Will investigate alternatives as suggested.
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Post by Deleted on Apr 22, 2022 14:26:28 GMT
I ran mine for a couple of years with it bypassed the only downside is that it will take out a 16amp Btype MCB due to inrush current, however I changed the MCB on the mooring post to 16amp K type or S Type, cant remember which, that copes with the high inrush current. Then years later got the soft start.
Transformer was built in 2006 so predates the plastic box jobbie that came out of a discussion I had with their tech dept.
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Post by Deleted on Apr 22, 2022 14:35:18 GMT
The mooring supply is 32amp here.
Bypassing might be okay not sure? Boat has a 16a consumer unit on it I think.
This transformer is a yellow plastic box type.
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Post by Deleted on Apr 22, 2022 15:35:26 GMT
Bypassing it is fine!
How it works is that when cold it has a resistance so slowing the current draw. As it heats up the resistance drops to near zero, so the same as a bit of wire, thus passing the full current.
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Post by Deleted on Apr 22, 2022 19:14:42 GMT
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Post by Deleted on Apr 22, 2022 19:29:15 GMT
You just made my day  |
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Post by Deleted on Apr 22, 2022 19:35:54 GMT
Gibbo was good but he was not error free
"Transformers are one of the oldest electrical items around, the people who make them have it more or "sussed" and they really are incredibly reliable."
There should be a "less" between or and 'sussed'.
I did like the canalworld things with him and ChrisW "the monkey puzzle tree man" back in the day.
(Edited to correct odd formatting during c&p operations)
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Post by Deleted on Apr 22, 2022 19:56:47 GMT
The frightening thing for me is that I look back on similar things to this and realise how much I have forgotten as I no longer use it.
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