A Sliding Rate Electrical Meter

    Abstract

    IN a paper published in the Journal of the Institution of Electrical Engineers of January, Dr. Unz of the Iraq Petroleum Co., Ltd., has suggested a new type of electrical meter, to replace the existing maximum-demand indicators. The object of the maximum-demand indicators is to enable the supply station to charge its consumers not only in accordance with the number of electric units consumed, but also in proportion with the demand on the station at the time during which they were consumed. In the early days of the use of this system, the meter bill consisted of two components, the first being at a constant rate for all demands not greater than a certain minimum rate, and the second component being charged at a higher rate when the demand exceeded this rate. The object was to influence consumers to be economical with their lighting when they were consuming at the higher rate. Economy at these times is most important to the supply company, which is otherwise forced to buy large quantities of expensive reserve plant, used only for a short time every day when the demand is excessive.

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    A Sliding Rate Electrical Meter. Nature 145, 396 (1940). https://doi.org/10.1038/145396a0

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