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Programmable Power Supplies

Preen Smart Inverter ATS / EVSE ATS / EVSE Burn-In ATS

Automated Test Systems for Smart Inverters, EV Charging Equipment, and EVSE Burn-In

Compliance testing for inverters, EV chargers, and burn-in production lines often calls for more than a single programmable power source — it needs coordinated hardware and software running a defined, repeatable test sequence against a specific standard, then generating a compliant report. Preen's automated test system (ATS) platforms package exactly this: proven programmable AC/DC power hardware combined with purpose-built control software, across three distinct application areas.

The Smart Inverter ATS covers PV inverter, power conversion system (PCS), and vehicle-to-grid (V2G) testing up to 2000kW and 2000Vdc input, built on Preen's AFV+ and PAS power hardware, testing against IEEE 1547.1, EN 50530, NB/T 32004, and CNS 15382/15599 — the standards governing how grid-tie inverters must behave under normal and disturbance conditions. The EVSE ATS addresses AC/DC EV charger testing and interoperability against SAE J1772, CNS 15511, GB/T 18487.1/27930, and the NB/T 33001/33002/33008 series, covering the range of regional and international charging standards a charger manufacturer or importer may need to certify against.

The EVSE Burn-In ATS solves a different problem entirely: production-scale reliability testing, running burn-in and temperature-rise testing on up to 10 chargers simultaneously from a single AC source — a substantial throughput advantage over testing each unit individually, relevant where a manufacturing line needs to screen every unit (or a statistically meaningful sample) before shipment without a proportional increase in test equipment and floor space. Automated report generation with configurable security levels supports production, QA, and R&D use cases with different access and sign-off requirements.

Preen EVSE ATS automated test system for EV charging equipment
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Smart Inverter ATS / EVSE ATS / EVSE Burn-In ATS
Available as a Containerized / IP54 Option
Like Preen's BPS shore power series, these ATS platforms can be built into a customized outdoor container or upgraded to an IP54-rated enclosure as an optional configuration — useful for ports, construction sites, remote installations, and other high humidity, heat, dust, or corrosion-exposed environments. Standard indoor chassis remain the default; contact Finch to configure a containerized or IP54 version for your application.
Preen Smart Inverter ATS automated test system

Smart Inverter ATS

Tests PV inverters, PCS, and V2G systems up to 2000kW and 2000Vdc input against IEEE 1547.1, EN 50530, NB/T 32004, CNS 15382/15599. High-Power and Multi-Channel (multi-MPPT) configurations available.
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Technical Specifications

Systems CoveredSmart Inverter ATS · EVSE ATS · EVSE Burn-In ATS
Grid-Tied / Inverter Test StandardsIEEE 1547.1-2020, EN 50530, NB/T 32004, CNS 15382, CNS 15599
EV Charger Test StandardsSAE J1772, IEC 62196-2, CNS 15511, NB/T 33001, NB/T 33002, NB/T 33008.1, NB/T 33008.2, GB/T 18487.1, GB/T 27930, GB/T 20234.2, NACS
Smart Inverter ATS – Max. Input2000Vdc, grid-tied voltage up to 600V (L-L), output power up to 2000kW
Smart Inverter ATS – Key Test FunctionsSlow/Fast Over & Under Voltage, Over/Under Frequency, Synchronization, DC Injection, Open Phase, Reconnect, Harmonics, Unintentional Islanding Test
Smart Inverter ATS – Ride-Through TestingLow Voltage Ride Through (LVRT) & High Voltage Ride Through (HVRT) per IEEE Std 1547.1-2020, with three-phase independent voltage setting
Smart Inverter ATS – Solar Array SimulationStatic & dynamic MPPT simulation, built-in EN50530 and I-V curve formula, harmonics waveform synthesis up to 25 harmonics (opt.)
EVSE ATS – Standard Test ItemsHi-Pot (UL2594), Ground Continuity, Control Pilot States A/B2/C, Current Capacity, Disconnect Switch S2, Coupler Disconnection, Over Current Protection, CCID (UL2231)
EVSE Burn-In ATS – FunctionSimultaneous burn-in & temperature rise testing of multiple single-phase and three-phase EV chargers via series connection, with abnormal charger bypass
Built On – ADG Series (DC Power Supply)Output Power: 30kVA–2000kVA · I-V Curve / Solar Array Simulation
Built On – PAS Series (Regenerative Grid Simulator)Output Power: 30kW–1800kW · Output Voltage: 0–2000V · Output Current: 0–2500A · Four-quadrant AC source with regenerative/recycle function
Built On – AFV+ Series (High Power Programmable AC Source, EVSE ATS)Output Power: 10kVA–2000kVA · Output Voltage: 0–155V / 0–310Vac · Output Frequency: up to 45–500Hz (opt.)
Built On – PAS Series (Regenerative Grid Simulator, EVSE ATS)Output Power: 30kVA–2000kVA · Output Voltage: 0–300Vac / 0–350Vac (opt.) · Output Frequency: 45–65Hz / 40–70Hz (opt.)
SystemApplication 
Smart Inverter ATSPV inverter, PCS, and V2G grid-connected performance testEnquire
Preen EVSE ATS automated test system

EVSE ATS

AC/DC EV charger AC input, control signal, safety, and performance test against SAE J1772, CNS 15511, GB/T 18487.1/27930, and NB/T 33001/33002/33008 series.
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SystemApplication 
EVSE ATSEV charger AC input, control signal, safety, and performance testEnquire
Preen EVSE Burn-In ATS

EVSE Burn-In ATS

Tests up to 10 chargers simultaneously from a single AC source for burn-in and temperature-rise testing, against SAE J1772, IEC 62196-2, GB/T 20234.2, and NACS.
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SystemApplication 
EVSE Burn-In ATSMulti-charger burn-in and temperature-rise test, up to 10 chargers per AC sourceEnquire

All three systems are engineered to order around the customer's test plan — contact Finch to scope a system for your application.

Frequently Asked Questions

What's the advantage of an ATS platform over running these tests manually on individual instruments?
An ATS combines the power hardware with software that sequences the test automatically against the applicable standard's defined procedure, then generates the compliance report directly — reducing both the manual effort involved in running repetitive certification tests and the risk of a step being skipped or performed inconsistently between test runs.
Why does the EVSE Burn-In ATS test 10 chargers from a single AC source instead of one each?
Burn-in testing needs to screen a high volume of production units for reliability, and dedicating a separate AC source to each unit under test would multiply equipment cost and floor space requirements substantially. Testing 10 chargers from one shared source achieves the necessary throughput without that multiplication.
Which ATS platform do I need for EV charger certification versus inverter certification?
The EVSE ATS is built specifically for AC/DC EV charger testing and interoperability standards (SAE J1772, GB/T 18487.1/27930, and related). The Smart Inverter ATS instead targets PV inverter, PCS, and V2G testing against a different standard set (IEEE 1547.1, EN 50530, and related). The applicable standard for the product being certified determines which platform is appropriate.
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Related Reading

Programmable Power Supplies
EVSE and Smart Inverter ATS — Automated Test Systems for EV Chargers and Grid-Tied Inverters