Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 138
t side, say 250 volts, but the average volts will be less, because the pressure waxes and wanes—^^— from zero to 250 and from 250 to zero again. The volts measuredon both sides with a voltmeter reading correct for both alternatingand continuous current shall be as i is to the ^2 ; the ^^2 is… … be the volts from the alternating side; or if we required 250 volts alternating, then we would require to make the machine 250 x 1.41, or 352.5 volts continuous pressure. Now we can cal-culate out a continuouscurrent machine forany voltage, hence wecan just in the sameway calculate out…
Electrical engineering · Electric power
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
