SXN72 Series Regenerative Grid Simulator

The SXN72 Series uses digital PWM rectification and independent high-frequency inverter technology to provide four-quadrant operation and bidirectional power flow.

获取报价

主要功能

Multiple powerful output modes:
- Balanced Three-Phase Mode: balanced three-phase voltage output
- Three-Phase Unbalance Mode: independent phase-voltage settings with phase angles adjustable from 0.0 degrees to 359.9 degrees
- Parallel Single-Phase Mode: three phases connected in parallel for high-power single-phase output
Three-phase decoupled design for comprehensive grid-abnormality simulation, including waveform distortion, grid fluctuations, and three-phase unbalance; harmonic mode supports superposition of the 2nd through 40th harmonics
Four-quadrant operation with energy regeneration to the grid
Meets the low-voltage and zero-voltage ride-through test requirements of NB/T 32004-2018, with stable operation and no load resonance at low voltage
Meets the high-voltage ride-through test requirements specified by applicable Chinese national standards

High input power factor (>=0.95) and low input current distortion (<5%)
Auto-Lock automatically locks the keypad after a preset interval to prevent inadvertent operation
8-inch color LCD with numeric keys, function keys, and a rotary knob for convenient, flexible operation
Comprehensive measurement of voltage, current, peak current, frequency, active power, apparent power, power factor, voltage crest factor, and other electrical parameters
AI-Monitor continuously monitors internal voltage, current, temperature, and other parameters, issuing immediate alarms and service prompts when abnormal conditions occur
Black Box automatically records operating parameters during abnormal events for subsequent review and maintenance
RS232 is standard; RS485 and LAN are optional

Featured Functions

Four-Quadrant, Bidirectional, Regenerative Operation

The SXN72 Series uses digital PWM rectifier control to absorb load-side energy and return it to the grid, reducing the need for dissipative loads in PV and energy-storage inverter testing.

Multiple Output Modes for Versatile Use

The SXN72 Series combines three-phase decoupled control with digital control algorithms to provide balanced three-phase, unbalanced three-phase, and parallel single-phase modes. One instrument therefore replaces multiple conventional AC sources.

Multiple Programmable Modes for Comprehensive Grid-Abnormality Simulation

The SXN72 Series supports programmable staircase, step, ramp, low-voltage (including zero-voltage) ride-through, and high-voltage ride-through profiles, together with superposition of the 2nd through 40th harmonics. These functions simulate grid abnormalities and severe operating conditions for DUT testing.

Applications

Automotive Electronics

Server Power Supplies

Battery Packs

Energy Storage Systems

Model Selection

Product Name	Regenerative Grid Simulator
模型	SXN7215-300-23	SXN7215-300-45	SXN7245-300-68	SXN7260-300-91	SXN7290-300-136
Source/Sink Capacity	15kVA	30kVA	45kVA	60kVA	90kVA
Basic Functions
Output Function	Grid Simulation
Regenerative Function	Returns output-side energy to the AC grid
Isolation	Built-in isolation transformer
Load Power Factor	+1.0 – 1.0
Wiring Configuration	Input: three-phase, four-wire Output: three-phase, four-wire + PE
Output Specifications
Output Mode	Balanced three-phase, unbalanced three-phase, and parallel single-phase modes
输出电压	Phase voltage: 0.0-300.0 V Rated voltage: 220.0 V
Voltage Setting Accuracy	Accuracy: <=0.4% FS Resolution: 0.1V
Balanced and unbalanced three-phase modes
Rated Current	22.7A	45.4A	68.1A	90.9A	136.3A
Parallel Single-Phase Mode
Rated Current	68.1A	136.3A	204.5A	272.7A	409.0A
Output Frequency	40.00–70.00Hz
Frequency Setting Accuracy	Accuracy: <=0.02% Resolution: 0.01Hz
Frequency Stability	≤0.02%
Voltage Total Harmonic Distortion (VTHD)	<1% (linear load)
Three-Phase Angle	120 degrees +/-2 degrees (balanced three-phase mode)
Crest Factor	1.41 +/-0.1 (sine-wave mode)
Line Regulation	≤1%
Load Regulation	≤1%
效率	>85%
Measurement and Display
Display	8-inch color LCD
Voltage Measurement Accuracy	Accuracy: 0.2% FS + 0.2% of reading Resolution: 0.1V
Frequency Measurement Accuracy	Accuracy: 0.02% Resolution: 0.01Hz
Current Measurement Accuracy	Accuracy: 0.3% FS + 0.3% of reading Resolution: 0.1A/1A
Power Measurement Accuracy	Accuracy: 0.5% FS + 0.5% of reading Resolution: 0.1kW/0.01kW/0.001kW
Operating Functions
Staircase Mode	9,999 steps
Step Mode	100 steps; up to 999,999 cycles
Ramp Mode	100 steps; up to 999,999 cycles
Low-Voltage (Including Zero-Voltage) Ride-Through	Simulates standards from multiple countries and regions; minimum response time <=20 ms
High-Voltage Ride-Through	Simulates standards from multiple countries and regions; minimum response time <=20 ms
Waveform Types	Sine wave or harmonic waveform (2nd-40th harmonic superposition)
Real-Time Adjustment	With the output enabled in standard mode, the output voltage and frequency settings can be adjusted using the numeric keys, increment/decrement keys, or rotary knob and applied immediately.
Protection Functions
Overload Capacity	105% < output <=110%: output shuts down after 600 s
	110% < output <=150%: output shuts down after 60 s
	150% < output <=200%: output shuts down after 2 s
	Output >200%: immediate output shutdown
Hardware Protection	Overcurrent, overload, short-circuit, and overtemperature protection; output overvoltage/undervoltage and phase-loss protection; DC-bus overvoltage/undervoltage protection; and automatic output-contactor trip protection
Software Protection	AI-Monitor, Black Box, and Auto-Lock keypad protection
Remote Interfaces
Communication Interface	Standard: RS232 Optional: RS485, LAN
Input Specifications
Input Phases	Three-phase, four-wire + PE
Input Voltage Range	380V±57V
Input Frequency Range	45–65Hz
Input Power Factor	>0.97 (rated input voltage, 50%-100% of rated input current)
Input Power Factor	>0.95 (rated input voltage, 10%-50% of rated input current)
Input Current Distortion	<5% (rated conditions)
Operating Environment
工作温度	0–40°C
Operating Humidity	20%-90% RH (non-condensing)
Dimensions and Weight
Dimensions (W x H x D, mm)	800 x 1800 x 800			1200 x 2000 x 1000
Weight (kg)	500	570	680	750	900
Note: Transient and flicker functions with 1 ms resolution are available as custom options.