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sub-DB reading higher than feeder DB

Former Community Member
Former Community Member

Hi,  I have a main distribution board which feeds into a sub-distribution board.  This sub board then feeds into two buildings.  Via a cable into the one building and also via a cable into another distribution board in the second building. What is puzzling me is that the distribution board in the second building shows a higher consumption than the main board which supplies it.  Does anyone have an idea how this could be possible? Thanks very much, Nick

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    Nick1967: 
     

    Hi Mike and Broadgage,  do you know which distribution board consumption is likely to be accurate?

    Not really without more details, and preferably photographs. Are we talking about loading at any one time, correctly measured in kilowatts, or we talking about total energy consumed over some time, correctly measured in kilowatt hours, sometimes known as “units” for billing.

    If the main meter is installed by the electricity company and is read for billing purposes, than that is more likely to be accurate than a fleabay special installed by persons unknown.

    If single phase, then SOME of my earlier remarks are no longer relevant. 

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    Nick1967: 
     

    Hi Mike and Broadgage,  do you know which distribution board consumption is likely to be accurate?

    Not really without more details, and preferably photographs. Are we talking about loading at any one time, correctly measured in kilowatts, or we talking about total energy consumed over some time, correctly measured in kilowatt hours, sometimes known as “units” for billing.

    If the main meter is installed by the electricity company and is read for billing purposes, than that is more likely to be accurate than a fleabay special installed by persons unknown.

    If single phase, then SOME of my earlier remarks are no longer relevant. 

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