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V S Reddy
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Join Date: Mar 2012
Posts: 17

TPN BUS BAR

03/30/2012 2:44 AM

Dear sir,

Is there 1000A tpn..?

i have a load current of 400A.
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Anonymous Poster #1
#1

Re: TPN BUS BAR

03/30/2012 3:09 AM

Yes.
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V S Reddy
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Join Date: Mar 2012
Posts: 17
#4
In reply to #1

Re: TPN BUS BAR

03/30/2012 4:29 AM

can u send the iso standard ratings of TPN...
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SolarEagle
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Join Date: Mar 2007
Location: by the beach in Florida
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#7
In reply to #4

Re: TPN BUS BAR

03/30/2012 5:56 AM

What's the application? Ratings are based on application...

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V S Reddy
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Join Date: Mar 2012
Posts: 17
#8
In reply to #7

Re: TPN BUS BAR

03/30/2012 6:41 AM

I'm estimating new tpn in my plant... ranges like 200A,300A,500A, like that some standard ratings.. can send that... i have a different loads.. i have apply for that...
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SolarEagle
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#2

Re: TPN BUS BAR

03/30/2012 3:22 AM

What's a tpn?

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V S Reddy
Active Contributor

Join Date: Mar 2012
Posts: 17
#3
In reply to #2

Re: TPN BUS BAR

03/30/2012 4:26 AM

TPN-Triple pole+neutral
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Anonymous Poster #1
#5

Re: TPN BUS BAR

03/30/2012 4:30 AM
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kvsridhar
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Join Date: Sep 2009
Location: Temporarily at Ashburn, VA
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#6

Re: TPN BUS BAR

03/30/2012 5:07 AM

Do you need only the busbar? Or also supports, enclosure, fishplates.....? Don't you need switchgear?And, why do you need a 1000A system when your load is only 400A?

Busbars (and most other stuff) are available in Renard #10 series of preferred numbers.

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V S Reddy
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Join Date: Mar 2012
Posts: 17
#9
In reply to #6

Re: TPN BUS BAR

03/30/2012 6:44 AM

thanks... ya i have a load of 560A.. i need a switch gear also with supports
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kvsridhar
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#10
In reply to #9

Re: TPN BUS BAR

03/30/2012 7:45 AM

Do you mean a Distribution Board (DB) something like this one ?

It has a 3P MCCB as an incomer, with a separate neutral bar. Individual single-pole or three-pole MCBs/MCCBs are plugged in. Many manufacturers are available.

You need only 600A. 1000A is overkill.

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Simon Wan
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#11

Re: TPN BUS BAR

03/30/2012 9:58 AM

Your load current is 400A only. You can use 650 Amp MCCB or 800 MCCB. Basicially for the neutral, we always use neutral link with a copper bar. Not necessary to put up a TPN as the cost is very expensive. You needmore space for the TPN.

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Anonymous Poster (2); kvsridhar (2); Simon Wan (1); SolarEagle (2); V S Reddy (4)

Previous in Forum: 225 A. Linclon A.C. Welder... ( Buzz Box)   Next in Forum: Selection of a Distribution Transformer

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