TM5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-2Figure 15-1. Remote Cable Assemblypolarizing coils are energized from the'incoming' frequency, while the radialfield coils are connected to the 'running'circuit. If there is no differencebetween the two circuits either in phaseangle or frequency, the pointer willremain motionless at the 12 o'clockposition on the dial. With no frequencydifference, any phase angle differencewill cause the pointer to take up aposition away from the point. If,however, there is a difference infrequency, this phase relationship willbe constantly changing and the pointerwill consequently rotate continuously inone direction or the other at a speedcorresponding to the difference infrequency. If 'incoming' is at a higherspeed than the 'running', the pointerrotates clockwise, and counterclockwiseif its speed is lower.(3) When the lamps turn off together, the twosources are synchronized. When the'incoming' frequency has been adjustedto equal that of the 'running' frequency,the pointer will come to rest at a point onthe scale depending on the phasedisplacement of the two voltages. Thespeed of15-2
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