ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Al Hildenbrand - Minneapolis - obituary
by Bill Addiss - 02/03/23 07:38 PM
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
1 members (Scott35), 24 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#201873 06/29/11 12:30 AM
Joined: Oct 2000
Posts: 3,672
Likes: 2
Admin Offline OP
Administrator
Member
Quote
This gear was installed in a large plant facility here in NJ. This plant was a factory that specialized in aircraft radios. That was the actual name of the plant.

At this plant there is an airfield and Jimmy Dolittle practice his blind landing. He would get inside his airplane, cover it with a canopy, take off and land here over and over again till he got his technique down pat.
This gear was installed in 1945 and is still in use today.

The plant buys Primary voltage from the POCO and steps it down itself. The incoming is 12Kv and is stepped down to 4160 volts. There are 6 oil filled switches just outside of this building and they are still in use. The 1 oil filled switch feeds this switchgear.

I believe the gear is rated at 1600 amps at 240 volts. Each of those lever you see in the picture is a disconnect that feeds underground feeders that run through out the complex. Then they run to main distribution centers in the buildings closet to this area. The rest of those oil filled switches feed primary to transformers around the property, which then feed MDB's inside different buildings.

Harold

[Linked Image from electrical-photos.com]

[Linked Image from electrical-photos.com]

[Linked Image from electrical-photos.com]


Admin #201880 06/29/11 09:56 AM
Joined: Apr 2002
Posts: 7,333
Likes: 7
Member
Harold:

Just goes to show that old 'Bulldogs' keep on working!!



John
Admin #201889 06/29/11 11:12 PM
Joined: Feb 2002
Posts: 2,233
H
Member
John,

Yeah they are still working. I want t try and get more pictures at this place. Outside of this building, there are live 4160 oil filled transformers. When I get more pics, I will ask Bill to put them here in this forum.

Admin #201932 07/05/11 12:26 AM
Joined: Jul 2007
Posts: 1,335
S
Member
Just wondering will they open when they need to both on overload and shorts? Ive seen mains fail to open on "newer" equipment


"Live Awesome!" - Kevin Carosa
Admin #202109 07/18/11 08:45 AM
Joined: Feb 2002
Posts: 2,233
H
Member
Sparky,

I don't know if those disconnects are even fused or not. They might just be a disconnect without fuses. Though from the picture, there is a hinge on top of each handle.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
HotLine1
HotLine1
Brick, NJ USA
Posts: 7,333
Joined: April 2002
Top Posters(30 Days)
triple 3
Popular Topics(Views)
303,267 Are you busy
232,239 Re: Forum
216,987 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5