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Electrical and magnetic calculations (1913)

Atkinson, Albert Algernon, 1867- [from old catalog] · New York, D. Van Nostrand company · leaf 96

An illustration from Electrical and magnetic calculations, 1913, leaf 96
lamp feet are too large to be found in oneof the horizontal columns, divide by 10, find the size ofwire for this number of lamp feet, then multiply the circu-lar mils so found by 10. *Example. — Find the circular mils for a main to sup-ply 500 lamps at 2000 feet, at a loss of 10%. Solution.—Dn =… … 27. The Three -Wire System. — By the three-wire systemis meant one in which two dynamos are connected inseries, one terminal of each being connected respectivelyto one of the wires of the circuit, while the common junc-tion of the machines also connects with a third or middle * In applying the…

Electricity

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