Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise .. (1916)
Swingle, Calvin F. (Calvin Franklin), b. 1846 · Chicago, F.J. Drake & company · leaf 1350
r whose armatureA, Fig. 620, is supplied with current from the mainsthrough a high resistance P in the back of the instrument,and a small field coil on right-hand side. Electro Meters 1315 This armature is in shunt across the circuit, hence itscurrent is proportional to the voltage. The main… … Fig. 619thomson recording watt-hour meter The armature shaft goes on past the commutator, to acyclometer with dials like a gas meter. The revolutions arehere recorded as watt-hours. The auxiliary field is just strong enough to nearly over-come the friction in the bearings and cyclometer, so that…
