High-power charger-smart lithium battery charger-constant current and constant voltage charger

Category

Name

Parameter

Model

BEG75020S

Environmental conditions

Operation temperature

-40°C ~ +75°C, derating is require when the temperature is above 55°C.

Storage temperature

-40°C ~ +70°C

Relative humidity

≤95%RH, without condensation

Cooling mode

Forced air cooling

Altitude

2,000 m a.s.l., derating is require when the altitude is above 2,000 m a.s.l.

Atmospheric pressure

79 kPa ~ 106 kPa

AC input

Input system

Single phases L/N+ PE

Voltage range

90 Vac ~ 280 Vac

The maximum static voltage borne under no operation

300 Vac

Rated voltage

220 Vac

Maximum current

20A

Grid frequency

45 Hz~ 65 Hz

Rated frequency

50Hz/60Hz

DC output

Voltage range

50 Vdc ~ 750Vdc

Current range

0 ~ 25A(current limiting point is settable)

Rated current

0-20A (required for setting of current limiting point)

Steady voltage precision

<±0.5%

Steady current precision

≤±1% (rated range of 20% ~ 100% for output load)

Load regulation rate

≤±0.5%

Startup overshoot

≤±3%

Peak-to-peak value noise

≤1% (200~750V, 0~20MHz)

Power factor and THD

Power factor

≥0.95 Full-load output power of @20%~50%

≥0.98 Full-load output power of @50%~100%

≥0.99 Full-load output power, input nominal voltage and frequency of @100%

THD

≤5% Full-load output power of @50%~100%

Efficiency

Under Rated input voltage

≥94.5%, @750V, 50%～100% load current, under rated input voltage

Current sharing

In case of load of 10%~100%, the module current sharing error ≤ rated output current of ±5%.

Noise

≤65dB(1m away，ambient temperature is 25℃, under rated input voltage and output is750V-60A

Startup duration (select the startup mode through the monitoring module)

Normal startup mode: the time delay from AC power-on to module output is ≤ 8s.

Output delayed startup: The startup duration can be set through the monitoring module, with default output startup duration of
3~8s.

Earthing resistance

Earthing resistance ≤ 0.1Ω, bearable current ≥ 25A

Lighting protection

6kV/3kA (1.2/50μs impulse voltage and 8/20μs impulse current mixed wave)

Insulation resistance

The insulation resistance of DC part and AC part to housing and the AC part to the DC part shall be ≥ 10MΩ.

Insulation strength

Within the 1 min of the AC input terminal to the CAN side 4242V DC voltage, there is no breakdown and flashover and the steady
leakage current is less than 1mA;
Within the 1 min of the AC input terminal to the enclosure 2121V DC voltage, there is no breakdown and flashover and the steady
leakage current is less than 1mA;
Within the 1 min of the AC input terminal to the DC output terminal 2121V DC voltage, there is no breakdown and flashover and the
steady leakage current is less than 1mA;
Within the 1 min of the DC output terminal to the enclosure 2121V DC voltage, there is no breakdown and flashover and the steady
leakage current is less than 1mA;
Within the 1 min of the DC output terminal to the CAN side 4242V DC voltage, there is no breakdown and flashover and the steady
leakage current is less than 1mA;
Within the 1 min of the CAN to the enclosure 707V DC voltage, there is no breakdown and flashover and the steady leakage current
is less than 1mA.