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KDLF Series Fuel Cell Specific Energy Recycling DC Electronic Load

 
. Static-state load modes: CV/CR/CC/CP
. Flexible setting of work steps for dynamic-state load mode
. Voltage/Current slew rates can be set
  • KDLF
  • 1.1.8


Summary


The KDLF Series Fuel Cell Specific Energy Recycling DC Electronic Load is specifically developed for fuel cell stack and engine testing. It is a converter device based on two-stage IGBT power conversion structure of power frequency isolation type, featuring high reliability, programmable, and automatic operation. High-precision and high dynamic response. Support full power range energy recovery to the grid. A great match for low-voltage and high-current testing.

Functions


  • Static-state load modes: CV/CR/CC/CP

  • Flexible setting of work steps for dynamic-state load mode

  • Voltage/Current slew rates can be set


Advantages


  • Insulation detection

  • Real-time communication signal monitoring for upper computer software

  • Support high current loading at nearly 0V for air starvation activation test

  • Four output modes: CV/CC/CR/CP

  • Support DBC file import & communicate with all sorts of test systems

  • Capable of controlling the stack at constant voltage output; Voltage/Current slew rate can be set

  • Automatic mode switch: Source/Load Modes; Provide high-voltage power supply to the engine’s starting process

  • Voltage compensation

  • External emergency stop


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Models & Specifications



Models

Rated Power

[kW]

Rated Current

[A]

Voltage Range

[V]

KDLF50-800-600

50

600

24-800

KDLF80-800-600

80

600

24-800

KDLF100-800-800

100

800

24-800

KDLF150-800-1000

150

1000

24-800

KDLF200-800-1000

200

1000

24-800

KDLF300-800-1000

300

1000

24-800

KDLF500-800-1000

500

1000

24-800

KDLF100-1000-800

100

800

24-1000

KDLF150-1000-1000

150

1000

24-1000

KDLF200-1000-1000

200

1000

24-1000

KDLF300-1000-1000

300

1000

24-1000

KDLF500-1000-1000

500

1000

24-1000

Load Mode

Work Modes

CV/CR/CC/CP

Voltage Precision

±(0.1%·FS+5dgt)

Current Precision

±(0.1%·FS+5dgt)

Current Ripple (rms)

≤0.2%·FS

Response Time

≤10ms

Voltage Resolution

0.001V

Current Resolution

0.001A

Power Resolution

0.001kW

Protection Overvoltage

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

Feedback Characteristics

Energy Recovery

Energy recovery is available in full power range.

iTHD

≤3%

Power Factor

≥0.99

Output Voltage

380V±15%

Frequency

50Hz±5Hz

Communication Interfaces

Local Interface

LCD

Remote Comms

RS485/LAN/CAN

Others

Emergency stop/Fault signal/Voltage compensation

Safety & Ambient Conditions

Insulation Resistance

≥20MΩ (500Vdc)

Withstand Voltage

3000Vdc (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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