Original Kutai EA321 3-Phase Sensing AVR
$343.00
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Description
The Kutai EA321 is a high-performance 3-phase sensing Automatic Voltage Regulator designed specifically for generators equipped with a Permanent Magnet Generator (PMG) system. It is a direct, reliable replacement for the Stamford MX321 (E000-23212).
By utilizing a PMG system, the EA321 remains isolated from the generator’s output load, ensuring that non-linear loads (such as variable speed drives or UPS systems) do not interfere with the excitation circuit. This results in superior motor-starting performance and sustained short-circuit current capability, making it the choice for mission-critical power systems.
Details
SPECIFICATION INSTALLATION AND ADJUSTMENTS
Technical Specifications
| Sensing Input | 190 – 264 VAC, 2 or 3 Phase (Switch Selectable) |
|---|---|
| Power Input (PMG) | 170 – 220 VAC, 3 Phase 3 Wire (Current: 3A/Phase) |
| Output Current | Continuous 3.7A, Intermittent 6A for 10 seconds |
| Voltage Regulation | < ± 0.5% (with 4% engine governing) |
| Thermal Drift | 0.02% per °C change in AVR ambient |
Adjustments & Setup
- VOLTS: Generator output voltage adjustment.
- STAB: Fine-tunes the stability/response time.
- UFRO: Under-frequency roll-off (Knee point adjustment).
- EXC: Over-excitation current limit.
- DWELL: Adjusts the recovery rate of the voltage.
- DROOP: Voltage droop adjustment for parallel operation.
Key Features
Premium PMG Features:
- 3-Phase Sensing: Ensures true RMS regulation and improved phase balance.
- Sustained Short Circuit: Permits the generator to maintain current during a fault for downstream breaker tripping.
- Advanced Protection: Includes Over-voltage, Over-excitation, and Under-frequency protection.
- Robust Design: Epoxy resin encapsulated to withstand harsh environments and high vibration.
- Industry Standard: Compatible with HC4, HC5, HC6, and P7 series Stamford alternators.
Compatibility: Replaces Stamford MX321, E000-23212, and Onan 305-0823.
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