Test equipment: Test instrumentation combines solar PV commissioning tests with I-V curve analysis

test equipment Seward

Test equipment: Seward offers a new concept in solar PV test instrumentation combining accurate I-V curve analysis with essential electrical testing for the fast and effective commissioning, safety and O&M diagnostic testing of all types of solar PV installations.

Using simple push button operation, the multi-function PV210 carries out all the electrical commissioning tests required by IEC 62446, including open circuit voltage, short circuit current, maximum power point voltage, current and power, and insulation resistance.

Uniquely, alongside the electrical tests, the PV210 also performs I-V curve measurements in accordance with IEC 61829 to determine if the measured curve deviates from the expected profile, highlighting the need for any further analysis or fault finding. The fill factor of PV systems can also be assessed.

For full detailed analysis, measured data can be transferred instantly from the test instrument to an accompanying PVMobile Android App using wireless NFC connectivity to create high definition color displays of the I-V and power curves for individual PV modules or strings.

In this way, the accurate visual comparison of curve shapes can be used for the immediate identification of potential problems such as shading, defective cells or poor electrical connections. Data can also be exported instantly from PVMobile to head office for further analysis and investigation.

Special wireless Solarlink connectivity between the PV210 and the Solar Survey 200R meter also enables real-time irradiance to be displayed and measured at the same time as electrical testing is being undertaken.

Irradiance and temperature data transferred to PVMobile can be used to convert measured electrical data to STC for direct comparison with manufacturers’ published data stored in the PVMobile database.

Complete I-V curve and electrical test data can be stored in the PV210’s large onboard memory and downloaded to a PC in CSV format via USB connection for full traceability of system data and test records.

When used with the optional SolarCert Elements 2 software program, downloaded data can be quickly and easily organized using a layered tree structure showing string, combiner box and inverter. In addition, professional inspection and test reports can be produced, including IEC 62446 measurements and I-V curve plots.

The lightweight and battery powered PV210 is available in a range of kit options to meet your testing requirements.

The Seaward Group is an international market leader in the design and manufacture of innovative test and measurement instrumentation for a range of electrical safety and compliance applications. The company’s Tampa, Fl. center provides a comprehensive sales, service and calibration capability for customers throughout the USA, Canada, South and Central America.

For more information about Seward or other products, click here to go to Utility Products’ Buyers Guide.

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