1

Operating temperature

-25 — +50(Typical value 25)

℃

2

Storage temperature

-40 — +85

℃

3

Relative humidity

≤95

%

4

Elevation

≤2000

m

5

Heat dissipation method

Conduction water cooling

-

Conductive water cooling, specifically achieved by attaching the aluminum heat sink plate at the bottom of the power supply to a platform equipped with water cooling measures. Water flow rate must be ≥15L/min, and inlet water temperature must be ≤25°C.

6

System Cooling Method

Conduction water cooling + system air cooling

-

Conductive water cooling is achieved by attaching the aluminum heat sink plate at the bottom of the power supply to a platform equipped with water cooling measures. Water flow rate must be ≥15L/min, and inlet water temperature must be ≤35°C.

Serial Number

Project

Technical Requirements

Unit

Note

1.1

Input Voltage Range

187—528

Vac

Three-phase AC (without neutral wire)

1.2

Rated Input Voltage

208—380

Vac

1.3

Input voltage frequency

47—63(Typical value: 50/60)

Hz

1.4

Power factor

≥0.95

-

Rated Input, Rated Load

1.5

Maximum Input Current

37

A

Rated load

1.6

Input surge current

＜45

A

Rated Input, No-Load

2. Output Characteristics

2.1

Output Voltage Range

2-50(Typical value: 40)

Vdc

1. The main circuit adjusts by regulating an external 0 to 10V voltage.

Corresponding output voltage ranges from 2 to 50V.

2. When the input voltage is below 323V, the main circuit's maximum output is 10kW. When above 323V, the maximum output is 12kW.

15 or 24 (typically 24)

Vdc

The auxiliary circuit's 15V or 24V voltage can be switched via CON22 (see Section 8.4.2 for details).

2.2

Output Current Range

0-250

A

Main circuit output current

0-12.5

A

Auxiliary circuit output current

2.3

Overall efficiency

≥91

%

Ambient temperature, 380VAC input/rated output

2.4

Output ripple and noise

≤500

mVp-p

The oscilloscope bandwidth should be 20 MHz, with probes connected in parallel to a 10μF capacitor and a 104Ω resistor.

≤240

mVp-p

2.5

Power-on/off overshoot amplitude

≤±5

%

2.6

Dynamic Characteristics

Loading

Output increases from 0 to full load within 10μs.

/

The output voltage shall not experience a transient drop or overshoot exceeding 5%, and shall not cause abnormal operation or protection of the power supply.

Dump load

Output drops from full load to zero within 10μs.

/

Modulated output

Modulation frequency: 5 Hz to 10 kHz;

Duty cycle: 20% to 100%

Output power settings: 50%, 80%, 100%

Arrange and combine the above conditions to test scenarios under various output settings.

/

Full voltage range input, with no noticeable distortion or clipping in the output pulse waveform, and no abnormal operation or protection events occurring in the power supply.

2.7

Voltage Regulation Accuracy

≤±2

%

2.8

Auxiliary Road Voltage Stabilization Accuracy

≤±3

%

2.9

Source adjustment rate

≤±0.5

%

2.10

Load Regulation

≤±1

%

2.11

SW Power-On Delay Time

≤3

s

Time from SW signal transitioning from high to low level to output voltage settling (no-load start)

2.12

Power-on delay

≤10

s

Time required for voltage to build from input to output when SW signal is pulled low (no-load start)

2.13

Output rise time

≤200

ms

Output voltage increases from 10% to 90% at rated load

2.14

Shutdown delay

≤50

ms

Upon receiving a shutdown signal from the control interface SW input, the power supply shall cease operation within 50 milliseconds.

2.15

40V Output Capacitor

Discharge time

≤15

s

When the input voltage is disconnected, under no-load conditions, the voltage across the output storage capacitor shall decrease to below 10V within 15 seconds.

2.16

Capacitive load

3000

uF

Full voltage and full load range

2.17

Temperature coefficient

±0.02

%/℃

Rated output voltage and current, full operating temperature range