International Library of Technology · Scranton, International Textbook Co. · leaf 324
ched their normal temperature, thecompound coils will generally take care of the voltage, andvery little further adjustment of the field rheostat is neces-sary. Field rheostats are made in many different styles,and a great many different schemes have been adopted formaking up and mounting the… … Fig. 33. into 52 sections connected to the contact points / mountedon the slate front. By turning the hand wheel H, any num-ber of sections maybe cut in or out.Nearly all rheostatsare made so thatturning the handleto the right will cutin resistance andlower the voltage ofthe dynamo. Thisis the same…
Electrical engineering
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