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Author Topic: UPS for fluorescent lighting  (Read 6195 times)
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Engineer ..... at large

« Reply #30 on: September 10, 2009, 03:49:56 PM »

I just fitted the first phillips high frequency electronic ballast in and it worked a treat Smiley, I started both vacuum pumps at the same time and every light on the farm went out except the one with the new ballast.
Thanks everyone for your help Grin.

Bit late to the thread but if you want to shop around ask your local newey and eyre or WF for there specialist lighting catalogue
or download Specialist Lamps - Part 2 Control Gears

there seems to be quite a variation in prices between brands and i alway got a better price for buying a few at a time.

8kw woodburner, Big piles of wood, 20 tube solar panel, custom tanks, back up gas boiler, North walls internally insulated
1968 landy that runs on anything and a currently wild meadow garden.

Nr. Tow Law
northern installer
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« Reply #31 on: September 10, 2009, 03:58:23 PM »

The problems of starting load on a limited supply can be solved in several ways;soft start units do exist,but are rare,and therefore costly;if you want to use easily obtainable parts (possibly second hand, both items are seen regularly on ebay) then change the milk pump motor to a 3 phase unit,fed by a suitably sized inverter drive.That will give you soft start, and by way of the variable speed,enable the motor/drive set up to be 'tuned' to give optimum performance,that way you can lengthen the run times and reduce the number of starts in the cycle.It would also be possible to modulate the pump with a level sensor,rather than switching it on and off.
Lighting:as others have suggested,electronic hf is the way to go,replacement hf ballasts are easy to fit and much more energy efficient:I would suggest that new fittings would be better,with a maximum tube length of 1500 mm for easier starting and quicker warm up in winter. hope this helps,pm me if details required.

"government scrappage scheme still available on Tardis trade ins (dont ask how we get around the deadline...)"
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