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 435
of this type, whose brushes are at rightangles to the plane of the field coils, is shown in Fig, 91. When the angle of the brushes is not correct, the reversal is tooearly or too late and during part of the revolution it furnishes torquewhich opposes the torque of the other coils, causing the meter… … M Qr>j <!Q <H CO O !=> ^ < 1 « i n s •J -S ^ ;^ O s:<t O o o •->o H OT H ELECTRICAL MEASUREMENTS 97 diminish the deteriorating effect of sparking. A form of brush withgravity control is provided for conducting the current to and fromthe armature. A counterweight, composed of…
Electrical engineering
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