AVR R180 Automatic Voltage Regulator | 180V to 310V Generator Voltage Stabilizer | Reliable Power Control for Generators

The R180 is a fully solid-state automatic voltage regulator (AVR) which is used for excitation of a brushless alternator powered by a permanent-Magnet (PMG) exciter or by auxiliary windings. The alternator voltage between phases V-W is sampled, processed and converted to a direct current value. This signal is compared to the reference value which is internally generated depending upon the voltage setting. The comparison is made by a PID controller, which controls the alternator excitation. The power circuit uses a pulse width modulated (PWM)IGBT circuit to adjust the feld current, which gives a good dynamic/transient response. It takes a 1 and 5 a signal form a droop current transformer in U phase to give a voltage droop which allows the alternator to operate in parallel. The R180 has an accessory input, which can be used as a remote potentiometer terminal when connected to a 1 KΩ potentiometer or takes +/- 4.5 VDC in order to change the terminal voltage. The R180 is triggered from the alternator remanent voltage.

• Under frequency protection：48.5 Hz/58.5 Hz for 50 Hz/60 Hz operation Slope：1.2X (120%) V/Hz
• Short circuit capability: 3 x Irated for 10 seconds ( AREP or PMG excitation)
• PMG input power：Continuous: 240V RMS +10% Momentary 5 s: 240V RMS + 30 Up to 240 Hz
• Regulation：± 0.5% at AVR sensing terminals
• Excitation current：6A DC continuous 9A for 5 seconds (short-circuit operation) 2 Year Warranty!