Stamford Generator AVR EA440 Auto Voltage Regulator EA440
EA440 self excited brushless type genset voltage regulator is a compatible replacement for Newage Stamford SX440 and Onan 305-0824.
Features
- Voltage Regulation < ±1%
- Can Be Use In Parallel Operation
- Adjustable DIP, TRIM & DROOP Function
- Under Frequency Roll Off Protection
- Sensing Voltage Loss Protection
- Under Frequency LED Indicator
- Soft Start Voltage Ramping
Specifications
| Sensing Input |
Voltage 190~264 VAC 1 phase 2 wire
Frequency 50/60 Hz selectable |
| Output |
Voltage Max. 90 VDC at 207 VAC
Current Continuous 4A, Intermittent 10A for 10 Sec.
Frequency Min. 15 Ohm |
| Voltage Regulation |
< ±1% (with 4% engine governing) |
| Voltage Build-up |
Residual volts at AVR terminal > 5 VAC |
| External Volts Adjustment |
±8% with 1 K Ohm 1 watt trimmer |
| Unit Power Dissipation |
Max. 12 watt |
| Thermal Drift |
0.04% per °C change in AVR ambient |
| Under Frequency Protection (UFRO) |
Set point 95% Hz
Slope 170% down to 30 Hz |
| Soft Start Ramping |
2 Sec. |
| Analogue Input |
Max. Input ±5 VDC
Sensitivity 1V for 5% generator volts
Input Resistance 1 K Ohm |
| Droop Input |
Burden 10 Ohm
Max. sensitivity 0.07A for 5% droop (PF=0)
Max. input 0.33A |
| Environment |
Operating Temperature : -40~70 °C
Storage Temperature : -40~85 °C
Relative Humidity : Maximum 95%
Vibration : 3.3G @ 100~2 KHz |
| AVR Controls Functions |
VOLT : Voltage Adjustment
STAB : Stability Adjustment
U/F*: To Set the U/F Knee Point
(*U/F: Under Frequency Protection)
DROOP : Droop Adjustment
TRIM : Analogue Input Adjustment
DIP : U/V Rate Set |
| Dimensions |
150.0 (L) x 135.0 (W) x 48.0 (H) mm |
| Weight |
418g ±2%
|
