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Old 3rd May 2021, 8:48 am   #8
60 oldjohn
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Join Date: Dec 2004
Location: East Yorkshire, UK.
Posts: 3,987
Default Re: Keith Blackman motor wiring

Quote:
Originally Posted by Refugee View Post
It looks like it might have had a contactor with two coils with a latching one on the (R)un terminal and a non latching coil on the (S)tart terminal.
You just push the start button and both windings are connected until you let the button go.
It just blows the fuse if you hold the button for too long.
Control gear was simple in old times.
Sounds similar to our old drying plant. It had a large lever switch, centre position was off, pull down to Start position for about 10 seconds until fan reached nearly full speed then quickly lift lever to lock it in top position. If you got it wrong the lever was blocked from reaching the upper Run position, and you had to have to do it all again.
No capacitor that I know of.

John.
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