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Mercury-lit workbench!
Since I received my F-Can ballast, I could finish the project you see on the workbench. It's basically a display for 100W mercury lamps. It uses the F-Can ballast and a basic 12V relay circuit to turn on and off the lamp. I first wanted a simple line voltage switch, but I found in my electronic circuits a 2 contacts relay! With that relay I could build a start/stop circuit, like those used with electric motors.

Two momentary switches are used as the ON/OFF switch. The contact closes if the ON button is pressed. The circuit is designed so the contact stays closed after releasing the ON button. Pressing the OFF button opens the contact and turns off the lamp!
Keywords: Indoor_Fixtures

Mercury-lit workbench!

Since I received my F-Can ballast, I could finish the project you see on the workbench. It's basically a display for 100W mercury lamps. It uses the F-Can ballast and a basic 12V relay circuit to turn on and off the lamp. I first wanted a simple line voltage switch, but I found in my electronic circuits a 2 contacts relay! With that relay I could build a start/stop circuit, like those used with electric motors.

Two momentary switches are used as the ON/OFF switch. The contact closes if the ON button is pressed. The circuit is designed so the contact stays closed after releasing the ON button. Pressing the OFF button opens the contact and turns off the lamp!

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File information
Filename:HPIM0578.JPG
Album name:Vince / Vince Electric - A truly natural experience...
Keywords:Indoor_Fixtures
Filesize:1012 KiB
Date added:Jan 05, 2012
Dimensions:2592 x 1944 pixels
Displayed:129 times
Color Space:sRGB
Contrast:0
DateTime Original:2012:01:05 11:33:05
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Exposure Time:1/15 sec
FNumber:f/3.6
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Focal length:7.5 mm
ISO:394
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Make:Hewlett-packard
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Model:HP DVC V5061u
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=10214
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Comment 1 to 9 of 9
Page: 1

joe_347V   [Jan 05, 2012 at 05:47 PM]
I've always wanted to replicate one of those motor starter circuits with a 120v relay but I couldn't get my hands on one, nice job!
A_lights   [Jan 05, 2012 at 07:51 PM]
Looks awesome!!
I work with control relays and the motor contators. Evey day in school, they have built-in overload protection
I should post some pictures
TiCoune66   [Jan 05, 2012 at 08:09 PM]
I had a 90hrs class until November in which I worked with motors. I built various control circuits, including a circuit that can run a motor forwards or backwards using contactors! Although the contactors I used didn't have a built-in thermal overload, it was a module that clips on the load side of the contactor. It was one hardcore class though! I had to build by myself nine circuits that normally must be built with a partner to finish them in time. How I've been able to make 7 and half of them out of 9 with no troubles is still beyond me XD.
A_lights   [Jan 05, 2012 at 08:21 PM]
Yeah sounds just like the ones we have, most complex thing I did was a circuit that each was dependent on the other, you have to have motor #1 running then motor #2 start and #3 like a conveyer belt would have so products can't pile up on top of itself lol, this circuit used 3 motors each having their own contractors as well as a control relay that was incharge of the memory for the switch
Silverliner14B   [Jan 06, 2012 at 04:07 AM]
@Vince did you take your class at your high school or are you co-enrolled at a trade school? I took a motor control class last fall and will take the next one this coming semester. I learned how to wire a start-stop-jogging circuit and a FWD-REV circuit and both circuits involved thermal overloads and a bunch other safety devices. Cool stuff! The next class will involve PLC software in motor control circuits.
TiCoune66   [Jan 06, 2012 at 03:46 PM]
I am attending a technical high school program in electricity since 2010. The program consists of over 20 classes, from branch circuits to fire alarm systems, it's a very complete program! I am ending my 3rd semester in three weeks and will start my 4th and last semester! Afterwards I am certainly going to get a good job.

As of my motor class, it was mostly a somewhat basic class. We didn't see anything in details in fact, we saw the basics of AC and DC generators/motors and their controls. So if we ever arrive somewhere and a motor or contactor needs to be replaced, we'll know what to do. Same thing if a given circuit needs to be rebuilt or a brand new one must be installed.
SeanB~1   [Jan 06, 2012 at 04:09 PM]
When I was an apprentice we had to do a project. i chose to do a lift ( I had seen a sale of relays in the electronics supplier in town, who had a box of relays on sale for the price of 2) As doing the usual of a desk lamp or a wire model was boring ( I had already done that) that was a good thing I pulled out of the library on the weekend. Think I still have it around somewhere.
gailgrove   [Jan 06, 2012 at 04:36 PM]
It's to bad that there aren't any classes like that here, I sure would take one if there was. I am planning to take the "OYAP" (Ontario Youth Apprenticeship Program) next year and in grade 12, that will allow me to do co-op at an electrical contractor and get some apprenticeship hours, plus the experience.
A_lights   [Jan 06, 2012 at 06:15 PM]
Awesome! I hope to get a co-op soon, sometimesthis year for sure

Comment 1 to 9 of 9
Page: 1