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 Post subject: Pad mounted transformer with secondary breaker
PostPosted: Wed Mar 27, 2019 4:25 am 
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Joined: Fri Jul 08, 2016 10:01 am
Posts: 227
Location: Indiana
The secondary bushings are all in line, horizontal for the phases as opposed to staggered or offset, and much closer spaced than in a pad mount without a breaker.

What would you call this configuration? HCB?

Attachment:
1000 kva with breaker.jpg
1000 kva with breaker.jpg [ 1.74 MiB | Viewed 1318 times ]


Attachment:
1000 kva with breaker bus.jpg
1000 kva with breaker bus.jpg [ 1.03 MiB | Viewed 1318 times ]

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 Post subject: Re: Pad mounted transformer with secondary breaker
PostPosted: Wed Mar 27, 2019 4:58 am 
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Location: Indiana
Just for grins, here's another one I just bought for my work. More standard configuration with the breaker cable fed.

Attachment:
500 kva with breaker 1.jpg
500 kva with breaker 1.jpg [ 1.18 MiB | Viewed 1315 times ]


Attachment:
500 kva with breaker 2.jpg
500 kva with breaker 2.jpg [ 1.28 MiB | Viewed 1315 times ]

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 Post subject: Re: Pad mounted transformer with secondary breaker
PostPosted: Mon Apr 01, 2019 7:13 am 
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Location: San Antonio, TX
In my opinion, the first configuration is Hcb. The second is VCBB.


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 Post subject: Re: Pad mounted transformer with secondary breaker
PostPosted: Mon Apr 01, 2019 11:06 am 

Joined: Mon Nov 24, 2008 6:42 pm
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Location: Nashville, TN
I agree. First one is HCB, second is VCBB.


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 Post subject: Re: Pad mounted transformer with secondary breaker
PostPosted: Fri Apr 05, 2019 11:32 am 
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I too agree. HCB for the first photo and VCBB for the second.

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