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 472
Fig. 117. Portable Water Rheostat 427 130 ELECTRICAL MEASUREMENTS Cleaning and Adjusting Parts. After the found test has beenmade, give the watt-hour meter parts a general cleaning with airbellows, brush, and cloth.
Electrical engineering
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