EA321
Automatic Voltage Regulator for PMG Generator
EA321 3 Phase Sensing Permanent Magnet Generator type voltage regulator is a compatible replacement for Newage Stamford MX321 and Onan 305-0823.
● Brochure ● Manual ● 3D Display
Features
- < ± 0.5% RMS Regulation
- 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 : EA321
| Sensing Input | Voltage 190~264 VAC, 2 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 3.7A, Intermittent 6A for 10 sec. Resistance Min. 15Ω |
| Voltage Regulation | < ± 0.5% RMS (with 4% engine governing) |
| Voltage Build-up | Residual volts at AVR terminal > 5 VAC |
| Soft Start Ramp Time | 0.4~4 sec. adjustment |
| Thermal Drift | 0.05% per °C change in AVR ambient |
| Current Limit Input | Burden 10Ω Sensitivity Range 0.5~1A |
| Unit Power Dissipation | Max. 18 Watt |
| External Volts Adjustment | ± 10% with 1 KΩ 1 watt trimmer |
| Over Excitation Protection | Set point 75 VDC, Time delay 8~15 sec. |
| Under Frequency Protection(UFRO) | Set point : 95% Hz (Factory set) Slope : 100~300% down to 30 Hz Max. Dwell : 20% volts/sec. recovery |
| Analogue Input(Adjustable Parameters) | Max. Input ± 5 VDC Sensitivity 1V for 5% generator volts Input Resistance 1 KΩ |
| Droop Input | Burden 10Ω Max. Sensitivity 0.22A for 5% droop (PF=0) Max. Input 0.33A |
| Over Voltage Detector Input | Set Point 300V, Time delay 1sec.(fixed) CB Trip Coil Volts 10~30 VDC / 0.5 Amp |
| 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% |
Mechanical Specifications
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