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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.

P7250181.JPG P7250183.JPG P6250399.JPG P6250139.JPG P6250279.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:390 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 06:37 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 06:55 AM]
Those must be some Pretty Big Contactors!...isnt a Contactor like a Big,Heavy Duty Relay?
gailgrove   [Jul 18, 2010 at 06:05 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 05:37 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 02:27 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 11:20 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 06:25 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 06:50 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 10:20 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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