Someermeter - Summator

Landis & Gyr 8 rate summator
Type: CAC 3.8r
100 Volts 50 Hz
Impulsing meter

This type of meter was used on a large consumers site with multiple feeders or on a substation to add / subtract consumption.
These meters were used in power generating stations also, look under my Benmore Hydro station video, where a Ferranti summator is used in the control room.
Ex : P.G.E.M. Arnhem, The Netherlands

Video # 595

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