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DNO upgrade.

broadgage
A farm near me has only a single phase 60 amp supply, believed to be 100 amps until the fuse operated recently. They are the last customer on an LV overhead line and the voltage regulation is very poor.

A three phase 11Kv line crosses their property, but the supply is not derived therefrom rather surprisingly.


They have requested an upgrade to three phase 200 amps.


The DNO have offered this for some very substantial price, but have offered to waive this fee if the farmer will grant to the DNO a long lease for a small substation. Consisting of a ground mounted transformer, air break 11 Kv switches atop poles and related equipment, room for second transformer if required.

This seems to me to be a good bargain, is there any reason not to agree ?
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    Chris Pearson:
    perspicacious:

    Not sure of their reasons for the facility to supply 500 kVA at 400 V though.


    Makes me think of a small housing development.




    Indeed, planning permission for any significant new build is unlikely, but the farm next door includes several old and at present unused cottages, these are to be renovated and used for farm staff. Possibly as much as 100KVA. The next door farm also has PP for a single but large dwelling . Perhaps another 72 KVA .

    And as has been suggested, I presume that the existing overhead LV line is to be fed from both ends.


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  • 0
    Chris Pearson:
    perspicacious:

    Not sure of their reasons for the facility to supply 500 kVA at 400 V though.


    Makes me think of a small housing development.




    Indeed, planning permission for any significant new build is unlikely, but the farm next door includes several old and at present unused cottages, these are to be renovated and used for farm staff. Possibly as much as 100KVA. The next door farm also has PP for a single but large dwelling . Perhaps another 72 KVA .

    And as has been suggested, I presume that the existing overhead LV line is to be fed from both ends.


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