This is the operation manual of EA05A Generator Automatic Voltage Regulator
This manual provides instructions for installing, adjusting, and troubleshooting the Kutai EA05A automatic voltage regulator. It details wiring configurations for different voltage inputs (220V, 380V, 440V), voltage and frequency settings, and field flashing procedures to ensure proper voltage build-up. It also includes troubleshooting steps for common issues like low residual voltage or unstable output.
The regulator is designed for general generators and features adjustable voltage output, thermal drift compensation, and soft start functionality. Safety warnings are included regarding the absence of over-excitation protection and the need for external over-voltage protection.
| Sensing Input Voltage | 220 / 380 / 440 VAC, 1 phase 2 wire |
|---|---|
| Frequency | 50 / 60 Hz |
| Output Voltage | Max. 63 VDC @ 220 VAC input, Max. 90 VDC @ 240 VAC input |
| Current | Continuous 5A, Intermittent 7A for 10 sec |
| Voltage Regulation | < ± 0.5% (with 4% engine governing) |
| Dimensions | 101mm L * 69mm W * 47.5mm H |
| Weight | 183g ± 2% |
For 380V or 440V, connect input terminals B, C and sensing terminals A, C separately as shown in Figure 4 or Figure 5. Voltage between B and C must not exceed 300 VAC.
Adjust the 'Stability Adjustment' clockwise slowly to change the feedback time. Too much adjustment causes instability; too little causes heavy-load voltage drift.
Voltage regulation is less than ±0.5% with 4% engine governing.