KAC Series Bidirectional Grid Simulator

 
.General/Step/Gradient mode
.Superposition of harmonics/inter-harmonics
.Voltage flicker simulation
  • KAC

Summary


KAC Series is a high precision programmable grid simulator based on two-stage power conversion structure, with three-phase adjustable by each independently. It can simulate the disturbance from the grid such as voltage and frequency, as well as superposition of harmonics, low-voltage ride through, and flicker simulation. Ideal match for PV inverter, power conversion system, on-board charger, and wind power converter testing.

Test Items


  • General/Step/Gradient mode

  • Superposition of harmonics/inter-harmonics

  • Voltage flicker simulation

  • Three-phase imbalance

  • High/Low voltage ride through


 

Advantages


  • Support parallel operation

  • Voltage response time: ≤2ms

  • Low THD≤1% (linear load)

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

  • Superior PF

  • High voltage/current precision

  • Standard communication interfaces: LAN/RS485


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Models & Specifications


Models

Rated Power [kVA]

Rated Current*[A]

Rated Voltage* [V]

Frequency*

[Hz]

Phase

Voltage Range* [V_L-N]

KAC-75-345-33

75

113

220

40-70

3φ4W

5-345

KAC-150-345-33

150

227

220

40-70

3φ4W

5-345

KAC-150-690-33

125

400

5-690

KAC-300-345-33

300

454

220

40-70

3φ4W

5-345

KAC-300-690-33

250

400

5-690

KAC-400-345-33

400

606

220

40-70

3φ4W

5-345

KAC-400-690-33

333

400

5-690

KAC-500-345-33

500

757

220

40-70

3φ4W

5-345

KAC-500-690-33

417

400

5-690

KAC-800-345-33

800

1212

220

40-70

3φ4W

5-345

KAC-800-690-33

667

400

5-690

KAC-1200-345-33

1200

1818

220

40-70

3φ4W

5-345

KAC-1200-690-33

1000

400

5-690

KAC-1500-345-33

1500

2272

220

40-70

3φ4W

5-345

KAC-1500-690-33

1250

400

5-690


NOTE: Rated Current/Voltage/Frequency* can be customized.

 


Input Characteristics

Phase

3φ3W+PE

Voltage

380V±15%

Frequency

50Hz±5Hz

Feedback Characteristics

Energy Recovery

Energy recovery is available in full power range.

iTHD

≤3%

Power Factor

≥0.99

Functions

Step Mode

Work step index: 100 sets

Voltage, frequency, and run time of each set can be edited.

Gradient Mode

Work step index: 100 sets

Voltage, frequency, and run time of each set can be edited.

Superposition of Harmonics

Each test can support 2-50 times of voltage harmonics superposition. Meet the NB/T32004-2018 standard.

Inter-harmonics

Inter-harmonics injection

Voltage Flicker

Meet the NB/T32004-2018 standard.

High/Low Voltage Ride Through

Available with multiple standards or customized standard.




Output Characteristics

Voltage

Waveform

Standard sinusoidal wave

Precision

±0.2%·FS (linear load)

Display resolution

0.1V

Load regulation

0.2%·FS

THD

≤1% (linear load)

Response time

≤2ms (10%-90%)

(Frequency changes at the same time.)

Current

Precision

±0.5%·FS (linear load)

Display resolution

0.1A

Frequency

Precision

±0.01Hz

Display resolution

0.01Hz

Phase

Regulation step

0.1°

Regulation range

360°

Communication & Interfaces

Touch Screen

LCD

Remote Comms

RS485/LAN

Others

Emergency stop/Fault signal

Safety & Ambient Conditions

Insulation Resistance

≥20MΩ (500Vdc)

Withstand Voltage

2000Vdc (60s, no arcing/breakdown)

Protection Level

IP21 (indoor)

Cooling

Fan cooling

Ambient Temperature

-10~40℃

Humidity

0-90%RH (Non-condensing at 25℃)

Altitude

≤2000m



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