15KW 3 phase charging power module AC/DC converter 50-
500V for battery charger 40A
SANDI SERIES charging module is for electric vehicle charging station. With single-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic.
Functional details
1. Hot plug
Plug technology is applied to the charging module to provide convenience for installation and maintenance. The access of the charging module to the system shall not disturb the output voltage of the system.
2. Advanced current sharing technology
Under constant voltage working mode, the charging modules can share current automatically within 10S, with degree of unbalance less than ±0.5A.
3. Control of input limited power
Refer to Fig. 1-10 for the relation between the output power and input voltage of the charging module. When the input voltage is within 360 Vac ~ 450 Vac (return difference is less than 5V), the module can output the maximum power of 15KW; when the input voltage is within 260 Vac ~ 320 Vac, the module can still work normally under limited power mode.
4. Control of output constant power
When there is a rated input voltage, the output power of the module is 15KW. Refer to Fig. 11 for the relation between the output voltage and the output current of the module.
The SD50040G module uses two operating modes with output voltage ranges of 50 to 500V.
The module only selects the operating mode based on the value of the received demand voltage, and does not select the operating mode based on the actual output voltage.
5. Temperature limited power
6. Regulation of output current limiting point
8. Regulation of output voltage
The output voltage of the module can be regulated constantly through the external monitoring module, with regulation range of 50Vdc ~ 500Vdc and minimum regulation step of 0.1 Vdc.
9. Fan control
The built-in processor of the module can regulate the speed of the fan according to the internal temperature and output current of the module.
10. Protection of input overvoltage/ voltage shortage
11. Output overvoltage protection
The overvoltage protection point is 260Vdc ~550Vdc (±10 Vdc). Default is 550Vdc.The module can be started after manual intervention upon overvoltage protection.
12. Over-temperature protection
The environmental over-temperature protection point is 80°C. When the DC panel has a temperature over 100°C, the module will stop working; when the DC panel has a temperature below 90°C, the module will automatically work again.
13. Protection of internal bus fault
When the internal bus voltage of the module is beyond the overvoltage/ voltage shortage protection point, the module will be powered off automatically. At this time, there is no output from the module and the fault indicator light is on.
14. Short circuit protection
In case of short circuit of the module, it will be subjected to protective shutdown and the red indicator light of the panel is on, and this condition will be transmitted to the monitor of the "module fault".
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Category
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Name
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Parameter
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Environmental conditions
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Operation temperature
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-40°C ~ +75°C, derating is require when the temperature is above 55°C.
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Storage temperature
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-40°C ~ +70°C
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Relative humidity
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≤95%RH, without condensation
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Cooling mode
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Forced air cooling
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Altitude
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2,000 m a.s.l., derating is require when the altitude is above 2,000 m a.s.l.
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Atmospheric pressure
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79 kPa ~ 106 kPa
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AC input
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Input system
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Three phases + PE
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Rated voltage
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380 Vac
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Rated frequency
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50Hz/60Hz
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DC output
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Rated voltage
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375Vdc (voltage range 50-500V)
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Rated current
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40A
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Over voltage
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500V
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Steady voltage precision
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<±0.5%
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Steady current precision
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≤±1% (rated range of 20% ~ 100% for output load)
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Load regulation rate
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≤±0.5%
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Grid regulation rate
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≤±0.1% (testing range is 432V ~ 530V)
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Startup overshoot
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≤±3%
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Peak-to-peak value noise
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≤1% (150~750V, 0~20MHz)
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Power factor and THD
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Power factor
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≥0.95 Full-load output power of @20%~50%
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≥0.98 Full-load output power of @50%~100%
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≥0.99 Full-load output power, input nominal voltage and frequency of @100%
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THD
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≤5% Full-load output power of @50%~100%
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Efficiency
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Under Rated input voltage
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≥95.2％，@500V，50％～100％
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EMC
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Emission
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ClassA , Meet the requiremnt of NB/T 33001-1-2010,NB/T 33008-1-2013
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Immunity
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C lassA , Meet the requiremnt of NB/T 33001-1-2010,NB/T 33008-1-2013
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Current sharing
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In case of load of 10%~100%, the module current sharing error ≤ rated output current of ±5%.
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Noise
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≤65dB(1m away，
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Startup duration (select the startup mode through the monitoring module)
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Normal startup mode: the time delay from AC power-on to module output is ≤ 8s.
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Output delayed startup: The startup duration can be set through the monitoring module, with default output startup duration of 3~8s.
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Earthing resistance
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Earthing resistance ≤ 0.1Ω, bearable current ≥ 25A
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Surge protection
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Meets IEEE C62 41-1991 Class B3 rating, 6kV/3kA (1.2/50μs impulse voltage and 8/20μs inrush current mixed wave)
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Insulation resistance
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The insulation resistance of DC part and AC part to housing and the AC part to the DC part shall be ≥ 10MΩ.
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Insulation strength
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AC input terminal to the housing 3535V DC voltage 20S clock, no breakdown, no arcing phenomenon, steady state leakage current is less than 1mA;
AC input terminal to DC output terminal 3535V DC voltage 20S clock, no breakdown, no arcing phenomenon, steady-state leakage current is less than
1mA;
DC output terminal to the housing 3535V DC voltage 20S clock, no breakdown, no arcing phenomenon, steady state leakage current is less than 1mA;
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