RG730MSQ is intended for the regulation of synchronous motors with I Rotor and Cos Phi monitoring or activable by an external control contact of the reactive power.

The digital Automatic Voltage Regulator RG730MS-Q is a numerical PID regulator designed to control the excitation of large and medium size synchronous motors.

The digital AVR RG730MS-Q belongs to the RG700 series of ICE digital controllers dedicated to the control of synchronous machines.

The digital controller RG730MS-Q performs 3 regulation functions and control the bridge rectifier of the synchronous motor in order to:

• maintain the rotor current on its set point during the starting phase
• maintain the value of the motor power factor on its set point regardless of the load conditions
• maintain the value of the reactive power on its set point.

Regulation functions

• Automatic regulation of the rotor current after detecting the end of the start of the motor in the asynchronous mode and the closing of the excitation contactor.
• Automatic regulation of the power factor in all four quadrants after the start of the motor.
• Direct regulation of the reactive power.
• Manual control with «go up» and «go down» buttons after selecting the manual mode.
• Smooth switching between the automatic and the manual regulation.