The AVR has the facility for droop CT connection to allow parallel running with other similarly equipped generators. SX440 is a two-phase sensed Automatic Voltage Regulator (AVR) and forms part of the excitation system for a brushless generator. The AVR senses the voltage in the main generator winding and controls the power fed to the stator and hence the main rotor to maintain the generator output voltage within the specified limits, compensating for load, speed, temperature, and power factor of the generator. Vibration: 20100 Hz (50 mm/sec), 100 Hz2 kHz Color: Black Material: Metal + PC Sensing Input: Voltage: 190264 V AC max, 1 phase, 2 wire Frequency: 5060 Hz nominal Power Input: Voltage: 140220 V AC max, 3 phase, 3 wire Current: 3 A/phase Frequency: 100120 Hz nominal Output: Voltage: Max 120 V DC Current: Continuous 2.7 A DC, intermittent 6 A for 10 seconds Resistance: 15 ohms minimum Regulation: 1% Thermal drift: 0.03% per C change in AVR ambient Soft start ramp time: 3 sec Typical system response: AVR response: 10 ms Field current to 90%: 80 ms Machine volts to 97%: 300 ms External voltage adjustment: 10% with 1 k 1 W trimmer Under frequency protection: Set point: 95% Hz Slope: 170% down to 30 Hz Unit power dissipation: 12 watts maximum Analogue input: Maximum input: 5 V DC Sensitivity: 1 V for 5% Generator Volts (adjustable) Input resistance: 1 k Quadrature droop input: 10 ohms burden Max sensitivity: 0.07 A for 5% droop OPF Max input: 0.33 A Over excitation protection: Set point: 75 V DC Time relay: 10 sec Environmental: Vibration: 20100 Hz (50 mm/sec), 100 Hz2 kHz Operating temperature: -40C to +70C Relative humidity: 95% Storage temperature: -55C to +80C Package Contents: 1 x Automatic Voltage Regulator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is 13 cm.