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Farm Building and Infrastructure
Renewable Energy
How many MW's can a 133KVA line carry!?
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<blockquote data-quote="TechWise" data-source="post: 7029343" data-attributes="member: 11384"><p>I assume you mean how many megawatts can a 132 kV line carry? This would be the standard voltage in the UK which is considered transmission level in Scotland and distribution level in England.</p><p></p><p>As you've observed, it's virtually impossible to give a proper answer since there are so many variables. As a VERY rough guestimate, 1000 amps per phase at 132kV works out at around 230MW. However, there are many factors involved, such as:</p><ul> <li data-xf-list-type="ul">Is it overhead or underground?</li> <li data-xf-list-type="ul">Is it winter or summer?</li> <li data-xf-list-type="ul">What size are the conductors?</li> <li data-xf-list-type="ul">How long is it?</li> <li data-xf-list-type="ul">What size transformer is at either end? What is the busbar arrangement?</li> <li data-xf-list-type="ul">What are the protection considerations? What is the fault level?</li> <li data-xf-list-type="ul">What are the reactive power limitations?</li> </ul><p>I don't recall the exact value, but National Grid will not allow more generation to be connected to any one set of towers than they have backup diesel capacity. The theory being they could never allow one pylon to fall down and take out more generation than they could rapidly replace. I believe that number was 2GW at one point but I can't recall accurately.</p></blockquote><p></p>
[QUOTE="TechWise, post: 7029343, member: 11384"] I assume you mean how many megawatts can a 132 kV line carry? This would be the standard voltage in the UK which is considered transmission level in Scotland and distribution level in England. As you've observed, it's virtually impossible to give a proper answer since there are so many variables. As a VERY rough guestimate, 1000 amps per phase at 132kV works out at around 230MW. However, there are many factors involved, such as: [LIST] [*]Is it overhead or underground? [*]Is it winter or summer? [*]What size are the conductors? [*]How long is it? [*]What size transformer is at either end? What is the busbar arrangement? [*]What are the protection considerations? What is the fault level? [*]What are the reactive power limitations? [/LIST] I don't recall the exact value, but National Grid will not allow more generation to be connected to any one set of towers than they have backup diesel capacity. The theory being they could never allow one pylon to fall down and take out more generation than they could rapidly replace. I believe that number was 2GW at one point but I can't recall accurately. [/QUOTE]
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How many MW's can a 133KVA line carry!?
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