Three such Power Glides connected electrically in star and mechanically in tandem, become suitable for operation from a nominal input voltage of 415V 3Ph AC and can give output anywhere between 0 to 415V or 0 to 470V.
|Single Phase :||Input 240 volts
Output 0 - 270 volts
|Two Phase :|| Input 415 volts
Output 0 - 470 volts - in two phase
|Three Phase :|| Input 415 volts
Output 0 - 470 volts - in three phase 50 Hz.
Two coils when connected in series and three coils when connected in star operated at tandem will give the desired output voltage.
To control the output voltage from remote point for various application in servo control automatic voltage stabilizers Power Glide is driven by step synchronous motor of lower speed instant reversibility and higher torque as per the application. The motor is coupled to the central shaft through necessary gears as per the requirement of output voltage. As the motor operates the central shaft rotates and the contact arm with the carbon brush slides along the ground surface. the motor operates on 240 V single - phase 50Hz AC. The rotation of the motor can be reversed by interchanging the motor connections by single pole double throw switch.