Product Short Description
Product Name: Emerson HD22005-3 High-Frequency Switching Charging / Rectifier Module
Product Introduction: The Emerson HD22005-3 is a three-phase input, high-frequency switching DC charging module belonging to Emerson’s HD series. It is primarily deployed in small-to-medium substation DC power systems and industrial DC panels, delivering 220 V DC at 5 A for battery bank charging and DC load supply.
Description
Technical Specifications:
- Type: Three-phase PFC high-frequency switching charger
- AC Input Voltage: 323–475 V (three-phase three-wire, 45–65 Hz)
- AC Input Current: ≤ 4 A
- DC Output Voltage Range: 176–320 V (adjustable)
- Rated DC Output Current: 5 A
- Maximum DC Output Current: 5.5 A (110% of rated)
- Output Constant-Current Range: 10%–110%
- Soft Start Time: 3–8 seconds
- Current Stabilization Accuracy: ≤ ±1%
- Voltage Stabilization Accuracy: ≤ ±0.5%
- Ripple Coefficient: ≤ 0.1%
- Average Current Imbalance (parallel operation): ≤ ±5% at 50%–100% rated load
- Power Factor (PFC): ≥ 0.94
- Efficiency: ≥ 90%
- Operating Temperature: -10°C to +40°C
- Storage Temperature: -25°C to +55°C
- Relative Humidity: ≤ 95%
- Atmospheric Pressure: 70–106 kPa
- Insulation Resistance: > 10 MΩ at 1000 V DC
- Dielectric Strength: 2000 V RMS AC, 50 Hz, 1 minute, no breakdown
- Sound Noise: < 55 dB
- Cooling: Hybrid (natural convection + forced-air cooling) with intelligent dust-proof design
- Fan Control: Starts at 55°C, stops at 38°C
- Dimensions (L × W × H): 413 mm × 110 mm × 257 mm
- Weight: 6 kg
- Communication: RS-485 with Modbus RTU (four-remote functionality)
Protection Features:
- Output short-circuit rollback (≤ 40% of rated current, auto-recovery)
- Output over-voltage protection: 325 ± 5 V DC
- Input over-voltage protection: 482 ± 6 V AC (recovery at 460 V AC)
- Input under-voltage protection: 316 V AC (recovery at 335 V AC)
- Phase-loss protection (auto-recovery)
- Over-temperature protection: trip at 85°C, recovery at 75°C
EMC Compliance: IEC 61000-4-2 (Level 3), IEC 61000-4-4 (Level 3), IEC 61000-4-5 (Level 3), IEC 61000-4-6 (Level 3), IEC 61000-4-8 (Level 3), IEC 61000-4-11 (sag & interruption).
Functional Features: Three-stage intelligent charging (constant current → constant voltage → float charge); parallel current-sharing for multi-module N+1 redundancy; hot-swappable — online replacement without affecting system operation; front-panel LED display showing voltage, current, status, and alarm codes; local manual voltage adjustment; smart fan control based on temperature threshold.
Application Scenarios: DC power panels for 35 kV–110 kV substations; industrial control room DC systems; backup power battery bank charging; communications station DC power; railway and metro DC auxiliary power.
Structural & Material Characteristics: Sheet-metal enclosure with forced-air cooling vents and dust-proof filtering; front-panel LED indicators; rear-mounted three-phase AC input terminal block and DC output terminals; modular design for 19-inch rack mounting alongside sibling HD22010-3 modules.
Working Principle: Three-phase AC input is filtered and fed into a power-factor-correction (PFC) front-end, then converted via a high-frequency transformer and secondary rectification into regulated DC output. The control circuit implements closed-loop voltage and current regulation, executing the three-stage charging algorithm. Multiple modules share load current via the RS-485 bus to achieve parallel current-sharing.
Installation Requirements: Mount vertically in a 19-inch rack or dedicated charging cabinet bay; provide three-phase 380 V AC (three-wire + PE) supply with proper fusing; ensure adequate airflow clearance around ventilation openings; connect DC output to the DC bus through appropriate isolating diodes; ground the chassis to the system earth.
Usage Notes: Do not operate beyond the -10°C to +40°C ambient range; verify output voltage setting before connecting to battery bank; the soft-start period of 3–8 s must elapse before full load is applied; phase-loss, over-temperature, and over-voltage events auto-recover once the condition clears; for parallel operation, all modules must be of the same model and firmware revision to guarantee ≤ ±5% current imbalance; inspect dust filters periodically.
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