s, there are two stages. The first stage mightbe called a period of preliminary excitation and the secondthe normal running condition for the particular speed. The preliminary excitation of the generator field is animportant feature of the Sperry equipment and it un-doubtedly contributes much to… … CODE:•-• DRUM CONTACTo CONTROLLER BRUSH76-21 CLUTCH COIL3-23 RESISTANCE FOR.SPEED CHANGE. Fig. 1—Dxayrammatic conneclioim of Sperry IranHmiHxion and controller small field current(. 1 amp.) thebuilding up timeis but a fractionof a second. How-ever, when thefield winding isshunted by aspeed control…
Automobiles · Aeronautics
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