Outline

The TOS9213AS, DC Withstanding Voltage/Insulation Resistance Tester, is the test instrument that can handle the insuration test with high voltage and high resolution required for the evaluation of the PV module, Cable, Connector, and Junction Box. The TOS9213AS is equipped with functions of the DC withstanding voltage testing and the insulation resistance testing accompanied with the features and performance of Kikusui’s high-end model TOS9200 series, and it extends additional features and specifications exclusively applied to the PV module testing. Furthermore, the TOS9213AS improves the current measurement accuracy of the DC withstanding voltage testing from the original specification of the TOS9000 series.

Insulation resistance test and wet leakage test

With each standard, the voltage is raised to a speed of 500V / s or less to 500V or the module maximum system voltage (whichever is higher) and maintained at that voltage. As the maximum system voltage in solar power generation projects continues to trend higher, the TOS9213AS can raise the DC voltage that is applied at the insulation resistance test up to 1500V.

Reproduction of PID

When performing tests for PID (Potential Induced Degradation), which is a problem　with current PV modules, a negative polarity DC power source is required. By turning　OFF the timer setting in the TOS9213AS insulation resistance test mode, it is　possible to perform these tests with the TOS9213AS in the same way.
(Maximum　current capacity: 1mA up to 1020V, 0.1mA at or above 1020V)