Long-term leakage current will cause changes in the state of the battery carrier and depletion layer, corrosion of the contact resistance in the circuit, electrochemical corrosion of the packaging material, etc., resulting in power attenuation of the battery, increase in series resistance, and light transmittance. Reduction, delamination and other phenomena that affect the long-term power generation and life of the module.

Specially developed for clauses 10.11 and 10.12 of the IEC61215 standard. Includes providing stable DC, current recording, temperature recording and control functions, controlling the opening of DC power supply through temperature, and long-term real-time monitoring of multi-channel current and multi-channel temperature. Used in conjunction with the thermal cycling chamber, it can monitor the continuity of the internal circuits of multiple modules. Judging the fatigue resistance of materials, the rationality of lamination process, and the stability of welding quality of solar cell modules in high and low temperature alternating environments.

The quality of bypass diodes directly affects the power generation of photovoltaic power plants, so the ME-PV-BDT-18 developed by Millennial can effectively test the performance of diodes. Executive standard: IEC 61215-2:2021 "Bypass diode function test, thermal performance test" IEC 62979:2017 "Bypass diode thermal runaway (thermal runaway) test".

During the application process of the solar cell, due to the voltage drop, it may be reversely charged by other cell strings. If the reverse charging current has not reached the protection current of the cell string fuse, it may cause the module to be reversely charged for a long time, resulting in the temperature continues to rise, which can damage module. This test is to provide a reverse power supply, reverse charge the solar cell, simulate the actual working condition, and test the ability of the component to withstand the reverse current. Conform to the MST26 clause in the IEC61730 standard.

In response to the increasingly high requirements of users, Millennial has specially developed Impulse Voltage Tester to simulate the severe weather encountered in nature. This tester designed for outdoor lightning surges uses high-standard electronic components device, and strive to complete the test without problems. Meet the pulse voltage shock test requirements specified in MST14 in the IEC61215-2:2016 standard.

Millennial Hipot tester products conform to IEC 61215-2:2021, IEC 61730-2:2020 (draft) DC withstand voltage, leakage current test, insulation resistance test requirements in the insulation test, also IEC 62790:2020, IEC 62852:2020 Test conditions for junction boxes and connectors.