Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 321
are unnecessary as there is no winding onthe revolving element. Figure 185 shows a view of the Guttman wattmeterwith the dials and magnets removed. The aluminum Recording Wattmeters 315 armature which is slotted in spiral lines weighs about% of an ounce and rests on a jewel bearing. At thetop of… … Figure 185 coils are wound with heavy wire and consume fromtwo to four watts, depending on the size of the meter.The shunt coil of the meter is wormd upon a lami-nated iron core having two air gaps, through one ofwhich the disk rotates. On the lower part of thislaminated core a heavy band of copper…
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
