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KAC Series Bidirectional Grid Simulator

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

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Model: 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

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

KAC Series Bidirectional Grid Simulator

KAC Series Bidirectional Grid Simulator

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