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Onsite-substations

johnwicklover

Hi,

Just wondering for onsite-substations are they property of the DNO or the site owner? 

How would  the supplies be worked out? For example, will the DNO provide a supply point coming out of the substation with a fuse cut-out and meter ready to be connected to a panel board etc?

Thanks.

Regards,

J

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  • 0

    Can be either.

    Sometimes the DNO provide an HV supply, often at 11 KV, and providing and maintaining the substation is then a customer problem. In such a case a slightly low tariff is generally applicable since the losses in the transformer are now paid for by the customer. In this case the customer, or their appointed HV person/contractor will have keys to the substation which should be kept locked.  The keys should be kept secure but quickly available to the authorised person.

    Sometimes the substation is DNO property but happens to be sited on, or adjacent to, or within customer owned property. For a substantial load, the DNO may require that space for a substation be  provided. In this case the customer should NOT have keys to the substation.

    In this cases the customers responsibilities are limited to keeping the access clear, and reporting any problems such as flooding that has entered or is likely to enter the substation.

    If the customer DOES have keys, then enquiries should be made as to whether this is correct, or a mistake.

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  • 0

    Can be either.

    Sometimes the DNO provide an HV supply, often at 11 KV, and providing and maintaining the substation is then a customer problem. In such a case a slightly low tariff is generally applicable since the losses in the transformer are now paid for by the customer. In this case the customer, or their appointed HV person/contractor will have keys to the substation which should be kept locked.  The keys should be kept secure but quickly available to the authorised person.

    Sometimes the substation is DNO property but happens to be sited on, or adjacent to, or within customer owned property. For a substantial load, the DNO may require that space for a substation be  provided. In this case the customer should NOT have keys to the substation.

    In this cases the customers responsibilities are limited to keeping the access clear, and reporting any problems such as flooding that has entered or is likely to enter the substation.

    If the customer DOES have keys, then enquiries should be made as to whether this is correct, or a mistake.

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