Electric Power Transmission-A Practical Treatise for by Louis Bell

By Louis Bell

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Wire Rope Transmission. Hydraulic Transmission. Compressed Air Transmission. IV. Gas Transmission. II. III. It will of these be well to look into the distinguishing characteristics their relation to electrical transmission, with the and purpose of finding the advantages and limitations of each, so that the proper economic sphere of each may be determined, before taking up the work which forms the main Each method will be found to have electrical subject of this volume. its own I. legitimate place.

Better means of transmission at the time of installation, some twenty years since, the plant did fairly successful work, even from a commercial standpoint. In this country the system is very little used save for short straight runs between building and building across II. in its streets, for instance. Noting, then, that cable transmission does excellent work proper place, but is unsuited for the distribution of power or for transmissions of anything save the simplest sorts, we may pass to the hydraulic method of transmitting and distribThis in its crude form of small water-motors uting power.

Belts are made of material which will not stand exposure to the weather, and which being of proportion to the low tensile strength power transmitted. is heavy and bulky in The advantage of wire rope over belting lies in its high tensile strength and freedom from deterioration when used out of doors. To gain the fullest benefit from these properties it is necessary to use light ropes driven at high speed. It should be borne in mind that the power transmitted by anything of the nature of belting depends directly on the speed and the amount of pull exercised.

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