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Highmast Control Cabinet Here's a overexposed pic I have of the highmast light control cabinet that Ontario uses, it's called a "distribution assembly" by the manufacturer and MTO. You could see the green pad mount transformer that feeds the lights and the control cabinet housing the large contactors (which has a PC on the short pole) that controls the highmast lights on the freeway for about 2 km/1 1/4 Mi or so. These cabinets are usually fed with a 347/600V 3 Phase Wye supply. See the comment section below for links to MTO diagrams and drawings of the cabinet. [url=http://www.galleryoflights.org/mb/gallery/displayimage.php?pos=-7008]Click here to see the version used for smaller installations.[/url] Keywords: Gear

Highmast Control Cabinet

Here's a overexposed pic I have of the highmast light control cabinet that Ontario uses, it's called a "distribution assembly" by the manufacturer and MTO.

You could see the green pad mount transformer that feeds the lights and the control cabinet housing the large contactors (which has a PC on the short pole) that controls the highmast lights on the freeway for about 2 km/1 1/4 Mi or so. These cabinets are usually fed with a 347/600V 3 Phase Wye supply.

See the comment section below for links to MTO diagrams and drawings of the cabinet.

Click here to see the version used for smaller installations.

gol-lg42113_001.JPG P7180077C.JPG P7250181.JPG P5150068.JPG 100_1947.JPG
File information
Filename:P6250399.JPG
Album name:joe_347V / Toronto Area Streetlights
Keywords:Gear
Company and Date Manufactured:B & M Manufacturing Inc.
Model Number:150kVA Distribution Assembly
Filesize:197 KiB
Date added:Jul 18, 2010
Dimensions:1024 x 768 pixels
Displayed:383 times
Color Space:sRGB
Contrast:0
DateTime Original:2010:06:25 19:21:25
Exposure Bias:0.7 EV
Exposure Mode:1
Exposure Program:Program
Exposure Time:1/50 sec
FNumber:f/4
Flash:No Flash
Focal length:7.7 mm
ISO:100
Light Source:Unknown: 0
Make:Olympus Imaging Corp.
Max Aperture:f/3.6
Model:FE47,X43
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=2782
Favorites:Add to Favorites

Comment 1 to 9 of 9
Page: 1

joe_347V   [Jul 18, 2010 at 05:37 AM]
Here's the links to some MTO PDF diagrams and drawings of the cabinet:

Outside and Dimensions
Interior Diagram
Legend for Interior Diagram
Wiring Diagram
Form109   [Jul 18, 2010 at 05:55 AM]
Those must be some Pretty Big Contactors!...isnt a Contactor like a Big,Heavy Duty Relay?
gailgrove   [Jul 18, 2010 at 05:05 PM]
Thanks for posting this picture, those diagrams are very cool, I have seen even bigger ones then this, I should post a picture of one Very Happy
joe_347V   [Jul 21, 2010 at 04:37 AM]
No problem, can you post a pic of the bigger control box, I thought that these were the biggest used by MTO
gailgrove   [Jul 21, 2010 at 01:27 PM]
Yep I will try to get a picture, it might not be a MTO one (the one I can easily get to is at a go station) But I have seen the size used by the MTO.
joe_347V   [Jul 20, 2011 at 10:20 AM]
Found a picture of this guy's big brother...Here's the jumbo sized version of this.

Talk about a huge cabinet, someone could go camping in this thing Shocked
gailgrove   [Jul 20, 2011 at 05:25 PM]
Yeah that's the one I was talking about, there is one at the Bramalea GO station and I know of one that has been installed with the 401/403/410 interchange project, I've also seen one before somewhere on a 400 series highway but I forget where.
SeanB~1   [Jul 20, 2011 at 05:50 PM]
Older ones have overrated contactors, and they last essentially forever. I used a 63A 3 pole contactor to switch a 10A or so load here where I stay, a little overkill, but the contactor will wear out mechanically before it fails electrically, and will survive any output fault current a lot better than the breaker feeding it will, as I have found out after a fitting or two died dead short.
streetlight98   [Oct 30, 2011 at 09:20 PM]
This thing is HUGE. The ones we use here are less than half that size. Shocked

Comment 1 to 9 of 9
Page: 1
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