Description
It is mainly applied in scientific research institutions, laboratory testing, inverter testing, photovoltaic product testing and electronic production lines, etc., when efficient power supply testing is required. It belongs to adjustable DC regulated power supply, high-frequency switching power supply, precision test power supply, digital DC regulated power supply, and DC power supply
● Function Description:
- High Efficiency:
Reduces energy consumption and wastage, complying with energy-saving and emission-reduction requirements, and saving electricity costs for customers. - High Power Density:
Saves customer space and reduces system costs. - DSP Digital Control:
Fewer components, higher environmental stability, higher reliability, and more convenient expansion. - Low Input Harmonics:
Reduces pollution to the power grid and enhances grid adaptability. - Wide Input Voltage Range, Wide Output Voltage Range:
Suitable for the vast majority of different input and output voltage scenarios. - Wide Operating Temperature Range:
The wide operating temperature range meets the requirements of most harsh working environments. - Hot Swapping:
Suitable for convenient use, reducing maintenance costs. - Comprehensive Fault Self-Detection and Warning:
Rich fault detection capabilities for easy customer maintenance.
● Product Specification Parameters:
| Category | Name | Parameters |
|---|---|---|
| Environmental Conditions | Operating Temperature | -40°C ~ +75°C (derate above 55°C) |
| Storage Temperature | -40°C ~ +70°C | |
| Relative Humidity | ≤95% RH, no condensation | |
| Cooling Method | Forced air cooling | |
| Altitude | ≤2000m (derate above 2000m) | |
| Atmospheric Pressure | 79kPa ~ 106kPa | |
| AC Input | Input Mode | Three-phase + PE |
| Voltage Range | 260Vac ~ 530Vac | |
| Maximum Withstand Static Voltage (Non-operating) | 600Vac | |
| Rated Voltage | 400Vac | |
| Maximum Current | 32A | |
| Grid Frequency | 45Hz ~ 65Hz | |
| Rated Frequency | 50Hz/60Hz | |
| DC Output | Voltage Range | 50Vdc ~ 750Vdc |
| Current Range | 0 ~ 33.3A (continuous operation in high-voltage mode) / 0 ~ 50A (continuous operation in low-voltage mode) | |
| Rated Current | 26A @ 750V (current limit setting required; full power at 750V is 26.67A) | |
| Voltage Stabilization Accuracy | < ±0.5% | |
| Current Stabilization Accuracy | ≤±1% (output load 20% ~ 100% of rated range) | |
| Load Adjustment Rate | ≤±0.5% | |
| Grid Adjustment Rate | ≤±0.1% (test range 320 ~ 530V) | |
| Start-up Overadjustment | ≤±3% | |
| Noise Index | Peak-to-Peak Noise | ≤1% (150 ~ 750V, 0 ~ 20MHz) |
| Power Factor and THD | Power Factor | ≥0.95 @ 20% ~ 50% full-load output power |
| ≥0.98 @ 50% ~ 100% full-load output power | ||
| ≥0.99 @ 100% full-load output power, standard input voltage and frequency | ||
| THD | ≤5% @ 50% ~ 100% full-load output power |
| EMC Indicators | Name | Standards/Parameters |
|---|---|---|
| Ripple | Requirement | Meets the general technical specifications for DC chargers of off-board electric vehicles, NB/T 33001-1-2018, NB/T 33008-1-2018 |
| EFT | Input/Output | 4kV; Signal line: 1kV Reference standard: NB/T 33001-1-2018, NB/T 33008-1-2018 |
| ESD | Limit | 8kV/15kV; Reference standard: NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Conducted Disturbance | Limit | 3Vrms, 0.15~80MHz Reference standard: NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Radiated Disturbance | Limit | 10V, 80~2GHz Reference standard: NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Power Frequency Magnetic Field | Limit | 30A/m Reference standard: NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Conducted Emission | Limit | Class A, meets the general technical specifications for DC chargers of off-board electric vehicles, NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Radiated Emission | Limit | Class A, meets the general technical specifications for DC chargers of off-board electric vehicles, NB/T 33001-1-2018, NB/T 33008-1-2018 |
| Item | Content | Specifications/Requirements |
|---|---|---|
| Safety Regulations Requirements | Meets the general technical specifications for off-board DC chargers for electric vehicles, NB/T 33001-1-2018, NB/T 33008-1-2018 | |
| Efficiency | ≥95.2%, @750V, 50%~100% load current, under rated three-phase input voltage conditions | |
| Standby Power Consumption | 9W (at rated input voltage) | |
| Noise | Not greater than 65dB (A) (at a distance of 1m) | |
| Inrush Current at Startup | <45A | |
| Mean Current | At 10%~100% load, the mean current error of the module is ≤±5% of the rated output current | |
| Temperature Coefficient (1/°C) | ≤±0.01% | |
| Startup Time (select startup mode via monitoring module) | Normal startup mode: time delay from DC on to module output ≤8s Output buffer: startup time can be set via the monitoring module, default output startup time is 5s | |
| Grounding Resistance | Grounding resistance ≤0.1Ω, withstand current ≥25A | |
| Leakage Current | Leakage current ≤3.5mA | |
| Insulation Resistance | Insulation resistance between DC part, AC part and the enclosure, and between AC part and DC part ≥10MΩ; | |
| Insulation Strength | Apply 3535V DC voltage for 20 seconds between AC input terminals and enclosure: no breakdown, no arcing, steady-state leakage current <1mA; Apply 3535V DC voltage for 20 seconds between AC input terminals and DC output terminals: no breakdown, no arcing, steady-state leakage current <1mA; Apply 3535V DC voltage for 20 seconds between DC output terminals and enclosure: no breakdown, no arcing, steady-state leakage current <1mA; | |
| ROHS | R5 | |
| Mechanical Parameters | Size | 84mm (height) × 226mm (width) × 395mm (depth) |
| Weight | ≤11.5kg |
