Abridgment of demand metering equipment: Its application in recent developments

Public utilities which have to do with supplying electric power are continually finding themselves confronted by problems a little different from anything in the past. New interconnections of superpower plants and transmission lines often present involved metering installations. The installation herein described has to do, generally, with such a condition and specifically has to provide for metering the simultaneous composite demand of an ultimate installation of 48 separate feeder circuits. It is believed that this is the largest installation of its kind so far attempted. The importance of this particular job required a very exacting study of all factors and the operating results, to date, seem to bear out the solution. A novel scheme has been incorporated in the daily routine of handling the demand meter tapes. A general description of this is given. A few details of the physical installation are cited, which show the extreme care used through the whole installation. While this application is specifically designed for metering, the principles involved are applicable to numerous other uses, some of which are mentioned.