SP Powerworld EA321
Automatic Voltage Regulator for PMG Generator
The SP Powerworld EA321 Compatible Voltage Regulator is a direct replacement for the Original Stamford* MX321. It's also Compatible with the following Stamford* models:
MX321-2 - E000-23212 - E000-23212/1P - Onan 305-0823.
Ex stock - shipped Worldwide. For GBP, EURO or USD pricing please contact us:
Sales: james.daff@sp-powerworld.com
Office: info@sp-powerworld.com
Tel: +44 (0)115 923 2568 (United Kingdom)
Tel: (24-hour) +44 (0)7484709956 (United Kingdom)
*All manufacturer names, numbers, symbols and descriptions are used for reference purpose only and do not imply that any part is the product of these manufacturers.
Features
- Voltage Regulation < ±0.5% RMS
- For Use In Parallel Operation
- RAMP, DIP, DWELL, DROOP, RMS, U/F, Over Voltage & Over Excitation Adjustment Functions
- Over Exc. / Over Volt. & UFRO LED Indicators
- Current Limiting Function
Specifications
| Model NO. | EA321 |
|---|---|
| Sensing Input | Voltage 190~264 VAC 2 phase or 3 phase Frequency 50/60 Hz selectable |
| Power Input(PMG) | Voltage 170~220 VAC 3 phase 3 wire Current 3A / phase Frequency 100~120 Hz nominal |
| Output | Voltage Max. 120 VDC Current Continuous 4A, Intermittent 7A for 60 sec. Resistance Min. 15 Ohm |
| Voltage Regulation | < ±0.5% RMS (with 4% engine governing) |
| Voltage Build-up | Residual volts at AVR terminal > 5 VAC |
| External Volts Adjustment | ±10% with 5 K Ohm 1 watt trimmer |
| Unit Power Dissipation | Max. 18 watt |
| Thermal Drift | 0.05% per °C change in AVR ambient |
| Soft Start Ramp Time | 0.4~4 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 0.22A for 5% droop (PF=0) Max. Input 0.33A |
| Under Frequency Protection (Factory Setting) |
Set point 95% Hz Slope 100~300% down to 30 Hz Max. Dwell 20% volts/sec. recovery |
| Current Limit Input | Burden 10 Ohm Sensitivity range 0.5~1A |
| Over Voltage Detector Input | Set point 300V Time delay 1 sec. (fixed) CB trip coil volts 10~30 VDC / 0.5 Amp |
| Over Excitation Protection | Set point 120 VDC Time delay 8~15 sec. |
| 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 : Output Voltage Adjustment STAB : Stability Adjustment UFRO : UFRO Knee Point Set DROOP : To Set the Droop to 5% at PF=0 TRIM : To Optimize Analogue Input Sensitivity EXC : Over Excitation Trip Level Set DIP : Hz Related Voltage DIP Set DWELL : Hz Related Recovery Time Set I LIMIT : Stator Current Limit Set OVER V : Over Voltage Trip Level Set RAMP : No Load Voltage Ramp Set Time RMS : Root Mean Square of Generator |
| Dimensions | 203.0 (L) x 153.0 (W) x 39.1 (H) mm |
| Weight | 530 g ±2% |
*Note : All features & specifications subject to change without notice.
Dimensions
