Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 248
fter a heat rununder full load the resistance is found to be 0.052 ohm. What is the rise intemperature? In this case the initial temperature i is 20.5°C., the final resistance i2, + ris 0.052 ohm, and the initial resistance R/ is 0.046 ohm. The temperature riseis, therefore, 0.052 . , , r-… … ALTERNATING-CURRENT MACHINERY 207 Armature coils Field coils Armature laminations Pole tip (leading) Armature ventilating ducts Pole tip (trailing) Frame Field yoke Bearings Room Small generators are usually run at full load, delivering theiroutput to water rheostats. During the heat run,…
Electrical engineering
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