DEM series exploration engineering professional rectifier power supply

(1) Local control method. (2) Automatic conversion of steady voltage and steady current, and state display;

input Output

Input: Three terminals and equipped with three-phase circuit breakers.
Output: Two-wire terminal.

Maximum power

0.5--200kW

Input voltage

AC/DC: Input range: three-phase 380±10% 50Hz±10% (output power 10-200kW)
Single phase 220±10% 50Hz±10% (output power 0.5-10kW)
DC/DC input DC range: 12VDC—1000VDC±10%

The output voltage

0—100% Umax Umax value 52,65,100,200,400,500,600,800,1000V, 2000V DC current rating according to requirements,
Power level 0.5-200kW, each power level is suitable for any rated voltage level output, the output voltage adjustment mode is multi-turn potentiometer adjustment with locking mechanism

Output current

0—100%Imax (selected according to customer's required power level) Continuously adjustable. Output current regulation mode is multi-turn potentiometer adjustment with locking mechanism

On-off level

≥18kHz

Response time

≤8ms (when the load changes by 20%)

Machine efficiency

≥90% (full load)

Source effect

Voltage regulation and steady current accuracy: ≤ (full scale) 0.4% ± 1 word (measured at rated output power)

Load effect

Voltage regulation accuracy: ≤ (full scale) 0.4% ± 1 word (when the load changes by 20%)
Steady flow accuracy: ≤ (full scale) 0.4% ± 1 word (when the load changes by 20%)

Voltage ripple (rms)

≤0.4% (measured in steady current mode, rated output power, original power supply designed at 1%)

Display accuracy

Two four and a half heads respectively display the output voltage and output current, voltage display accuracy: 0.1V current display accuracy 0.01A

Protective function

Output overcurrent: protection overcurrent value adjustable when 110% of rated current is exceeded
Output overvoltage: protection overvoltage can be adjusted when 110% of rated voltage is exceeded
Output short circuit: power supply output short circuit automatic constant current
Overheating of the whole machine: protection when the power module temperature exceeds 70 degrees Celsius
All kinds of protection should be provided with instructions.

temperature humidity

-20 to +70 degrees Celsius; 90% non-condensing

Way of working

Long-term full load continuous operation

Mean time between failures

≥50000 hours

Insulation resistance
Earthquake resistance

Between input and output and between output/input and cabinet: >200MΩ;
The control circuit board is treated with three anti-treatments, and the design structure is reasonable, which is suitable for the seismic requirements of the three-level road transportation in the field.

cooling method

Radiator forced air cooling