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 466
motors, gener-ators, or conductors carrying heavy currents; this applies particularlyto direct-current standards. 431 124 ELECTRICAL MEASUREMENTS Direct-current standards should always be connected in circuitso that their positive leads are connected to the positive bindingposts and they should be… … Fig. 111. Portable Test MeterCourtesy of General Electric Company the relative speeds of the rotating standards and different types ofwatt-hour meters under test. The rotating standards should be regularly checked with sub-standards to insure their accuracy and, if found in error, they canbe easily…
Electrical engineering
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