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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 166

An illustration from 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, leaf 166
quired. Three-Wire Three-Phase. When three mains are used in athree-phase system, two wattmeters are sufficient for the com-plete measurement of the power delivered to any three-phase receiv-ing unit, whether the receiving circuit is balanced or unbalanced, orwhether it is connected Y or A. Fig.… … er \m^ Fig. 138. Diagram of Power Connection for Three-WireThree-Phase System total power delivered independent of balance or lag. When thecurrent lag in the circuit is less than 60 degrees, /. e., when the powerfactor is greater than 0.5, then the arithmetical sum of the readingsof the two…

Electrical engineering

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