KACL Series Variable Frequency AC Power Supply

 
. Constant voltage output
. Flexible work step setting: Step/Gradient Mode
. Editable protection parameters: Overvoltage/Overcurrent point
  • KACL
  • 1.2.2


Summary


KACL Series is a variable frequency AC power supply of two-stage power conversion structure, featuring high-precision, wide output range, and independent three-phase. The product works in three modes: General/Step/Gradient Mode, satisfying the versatile demands of DC charging pile testing including overvoltage, undervoltage, over-frequency, and under-frequency tests. It is an ideal testing solution for research institutes, laboratories, inspection agencies, and authentication centers etc.

Functions


  • Constant voltage output

  • Flexible work step setting: Step/Gradient Mode

  • Editable protection parameters: Overvoltage/Overcurrent point

  • Independent three-phase

  • External emergency stop


Advantages


  • Support parallel operation of multiple equipment;

  • Fast voltage response;

  • Low THD≤1% (linear load);

  • Complete safety protection: OVP/OCP/OTP/OPP;

  • High precision output of voltage & current;

  • Standard communication interfaces: LAN/RS485.


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Models & Specifications



Models

Power Capacity [kVA]

Rated Current [A]

Rated Voltage [V]

Frequency

[Hz]

Phase

Voltage Range [V]

KACL-75-345-33

75

113

220

45-65

3φ4W

5-345

KACL-150-345-33

150

227

220

45-65

3φ4W

5-345

KACL-300-345-33

300

454

220

45-65

3φ4W

5-345

KACL-400-345-33

400

606

220

45-65

3φ4W

5-345

*Rated voltage/current, and frequency can be customized.




Other Parameters



Input Requirements

Phase

3φ3W+PE

Voltage

380V±15%

Frequency

50Hz±5Hz

Functions

Step Mode

Max. 50 sets of work steps

Voltage, frequency, and operation time are recorded for each set.

Gradient Mode

Max. 50 sets of work steps

Voltage, frequency, and operation time are recorded for each set.

Protection

OVP/OCP/OTP/Phase loss/Emergency stop etc.

Output Characteristics

Voltage

Waveform

Sinusoidal wave

Precision

±0.5%·FS (linear load)

Setting Resolution

0.1V

Display Resolution

0.1V

Load Regulation

0.2%·FS

THD

≤1% (linear load)

Response Time

≤20ms (10%-90%) with frequency changing at the same time

DC Offset

No DC offset

(built-in isolating transformer)

Current

Precision

±1%·FS (linear load)

Display Resolution

0.1A

Frequency

Precision

±0.01Hz

Setting Resolution

0.01Hz

Display Resolution

0.01Hz

Phase

Adjustment Step Length

0.1°

Adjustment Range

360°

Communication Interfaces

Local Interface

LCD

Remote Comms

RS485/LAN

Others

External emergency stop/Fault signal

Safety & Ambient Conditions

Insulation Resistance

≥20MΩ (500Vdc)

Withstand Voltage

2000Vdc (60s, no arcing/breakdown)

Ground Resistance

≤0.1Ω

Protection Level

IP21 (indoor)

Cooling

Fan cooling

Ambient Temperature

-10~40℃

Relative Humidity

0-90%RH (non-condensing at 25℃)

Altitude

≤2000m


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