GW Instek APS-7000 Series | Programmable Linear AC Power Source
Test power supplies, LED drivers and inverters under repeatable mains conditions, including voltage disturbances, reverse current and inrush events.
- ✓ 500–3000 VA Output Power
- ✓ 0–310 Vrms at 45–500 Hz
- ✓ 30% Continuous Reverse Current
Linear AC Power Source for Grid and Inverter Testing
AC Input Testing Under Defined Mains Conditions
The GW Instek APS-7000 series applies programmable voltage and frequency profiles to the AC input of power supplies and LED drivers. For PV inverters, it reproduces grid conditions at the AC connection and displays reverse power. The standard range covers 0 to 310 Vrms at 45 to 500 Hz, while voltage, current, power, power factor, and peak current are measured directly.
Testing Power Failures, Voltage Fluctuations, and Reverse Current
Simulate Mode reproduces power failures, voltage rises, and voltage drops. Sequence Mode generates time-based output profiles, while Program Mode compares measured values with defined limits and returns PASS or FAIL.
When an inverter feeds current back, the source can absorb up to 30% of the maximum RMS output current continuously and up to 100% for no more than three minutes. Within these limits, no additional load resistor is required to protect the AC source.
Reproducing Distorted Waveforms and Inrush Current
For non-sinusoidal supply conditions, ARB Mode combines seven waveform groups into up to 20,000 voltage waveforms, including clipped sine waves and waveforms with high crest factors. Surge/Dip Control overlays a temporary voltage rise or dip on the fundamental waveform. Ipk Hold captures and holds the highest inrush current value, while Ramp Control determines how quickly the output voltage rises or falls.
Selection by Test Requirement and Operating Point
Test voltage, continuous and inrush current, and possible reverse current determine the required power rating between 500 and 3000 VA. Depending on the version, Remote Sense compensates for voltage drops across long connection cables up to the DUT. For higher test requirements, the output can be optionally extended to 600 Vrms or 999.9 Hz.
As the series supplies AC voltage only, it is not intended for DC source, electronic load, or electrical safety testing.
Alternative Products
For AC input testing up to 1000 VA, the GW Instek APS-7000E Series provides a reduced-feature alternative. Test setups that require bidirectional AC/DC operation and an integrated load function can use the Kewell G6000 Series. For regenerative four-quadrant grid simulation and higher power ratings, consider the ITECH IT7900 Series.
Related Product Categories
Further programmable AC and DC sources are available under Power Supplies and Sources. Systems for reproducing defined grid conditions can be found under Simulators. Devices that combine source and sink operation are listed under Bidirectional Power Supplies.
Put Your Mains Scenarios to the Test
From voltage dips and distorted waveforms to reverse current and inrush events: we help select the right power rating, range, and interfaces for your test setup.
Variants
Specifications
| Specification | Value |
|---|---|
| Output Signal Quality | Low ripple, low total harmonic distortion, and low noise |
| Output Voltage Range | 0 to 310 Vrms, optionally expandable to 600 Vrms |
| Output Frequency Range | 45 to 500 Hz, optionally expandable to 999.9 Hz |
| Measurement and Test Functions | RMS voltage (Vrms), RMS current (Irms), frequency (F), peak current (Ipk), peak current hold (Ipk Hold), active power (W), apparent power (VA), power factor (PF), and crest factor (CF) |
| Reverse Current Monitoring | Warning indication when reverse current is detected |
| Sequence Memory | 10 sequence sets for programming user-defined output profiles |
| Transient Simulation | 10 simulation sets for quickly reproducing power failures, voltage rises, and voltage drops |
| Test Program Memory | 10 program sets for creating automated measurement and test sequences |
| Preset Memory | 10 memory locations for saving and recalling instrument settings |
| Auto-Start Function | Automatic execution of sequence, simulation, or program routines after power-up |
| Standard Communication Interfaces | LAN, USB Host, and USB CDC, depending on the model |
| Optional Communication Interfaces | GPIB, RS-232, and USB CDC, depending on the model |
| Display | 4.3-inch TFT LCD |
Options & Accessories
| Manufacturer Number | Name |
|---|---|
| APS-001 | GPIB Interface Card |
| APS-002 | RS-232/USB Interface (APS-7050, APS-7100) |
| APS-007 | RS-232 Interface Card (APS-7200, APS-7300) |
| APS-003 | Output Voltage Expansion (0–600 Vrms) |
| APS-004 | Output Frequency Expansion (45–999.9 Hz) |
| GRA-423 | Rack-Mount Kit (APS-7050, APS-7100) |
| GRA-429 | Rack-Mount Kit (APS-7200) |
| GRA-430 | Rack-Mount Kit (APS-7300) |
Scope of Delivery
| Scope of Delivery |
|---|
| User Manual and Programming Manual (CD) |
| Power Cord |
| GTL-123 Test Lead |
| Terminal Cover Set (APS-7050, APS-7100) |
Videos
Links & Downloads
Available Documents (Subject to Change)
Supplier
Founded in 1975, Good Will Instrument Co., Ltd was the first professional manufacturer in Taiwan specializing in electrical test & measurement instruments. GW Instek began as a manufacturer of power supplies and quickly expanded into the development of high precision electronic test and measurement instruments.
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