Appearance defects of photovoltaic modules (such as cracks, bubbles, delamination, etc.) may intensify during subsequent tests and have an adverse impact on the performance of the modules. The Millennial Visual Inspection Tester is used to detect any appearance defects in photovoltaic modules, meeting the requirements of MQT01 appearance inspection in the IEC61215 - 2:2021 standard.

Wet Leakage Current Tester is used to verify the influence of moisture caused by rain, fog, dew or melting snow on the circuit caused by corrosion, leakage or safety accidents,ensure that the insulation performance of the module complies with the standards. This equipment meets the test standards of IEC 61215-2:2021, IEC 61730-2:2016, and UL 1703-2015.

The EL tester for photovoltaic modules in the laboratory is a high-precision detection device based on the principle of electroluminescence (EL). It is mainly used to evaluate the internal defects and performance of photovoltaic modules, ensuring the product quality and reliability.

The Millennial PV Module UV Preconditioning Chamber for photovoltaic modules is a specialized device used to simulate the ultraviolet radiation in the natural environment and conduct accelerated aging tests on photovoltaic modules. The test is carried out in accordance with the MQT10 clause of the IEC61215 standard. The irradiation area can reach 5800×2800mm (capable of simultaneously testing 4 components with the specification of 2500×1400×50mm). Its core function is to evaluate the weather resistance, anti - aging performance, and reliability of materials under long - term outdoor exposure through controllable UV light sources, temperature and humidity regulation, and other conditions.

The Millennial Steady State Solar Simulator uses metal halide lamps that can simulate full - spectrum light sources to reproduce the destructive light waves present in different environments. It can provide corresponding environmental simulation and accelerated tests for the product development and quality control of photovoltaic modules. The light exposure test is carried out in accordance with the stability tests specified in the MQT08 and MQT09 clauses of the IEC61215 standard. The irradiation area can reach 6040×2560 mm, and the light level meets the BBA standard.

The current continuity test system is for IEC61215 standard 10.11 high and low temperature cycle experiment clause, 10.12 wet freezing experiment clause. Mainly includes the provision of stable direct current, current recording, temperature recording and temperature control functions, through the temperature control of the DC power supply, the multi-channel current, multi-channel temperature long-term real-time monitoring. With the use of high and low temperature cycle box, it can monitor the internal circuit connectivity of multiple components.

Long-term leakage current will cause changes in the state of the cell carriers and depletion layer,corrosion of the contact resistance in the circuit,and electrochemical corrosion of packaging materials.This results in cell power attenuation,increased series resistance,reduced light transmittance,delamination and other phenomena that affect the long-term power generation and life of the module. The PID (Potential Induced Degradation) resistance test is often combined with thermal cycling (MQT11), wet-freeze cycling (MQT12), etc., to simulate the comprehensive failure modes of the modules in complex environments.

The Bypass Diode Tester is a core inspection device specifically designed for photovoltaic modules, which is used to evaluate the conduction performance, thermal stability, and durability of bypass diodes under extreme operating conditions. As the "safety valve" of photovoltaic modules, bypass diodes can effectively prevent the hot spot effect and ensure that the modules can still operate safely when there is partial shading or when solar cells fail. This system verifies the key parameters of the diodes by accurately simulating the actual application scenarios, ensuring the long-term reliability of the modules and reducing the operation and maintenance risks of the power station.

During the application of solar cells, due to voltage drops, they may be reversely charged by other cell strings. If the reverse charging current does not reach the protection current of the cell string fuse, the module may be reversely charged for a long time, with the temperature continuously rising, thus damaging the module. This test provides a reverse power supply to reversely charge the solar cells, simulating actual operating conditions to test the module's ability to withstand reverse current. It is applicable to Clause MST26 in the IEC61730 standard.

The Millennial Impulse Voltage Tester is a key device specifically designed to evaluate the insulation performance and reliability of photovoltaic modules under transient overvoltage conditions such as lightning strikes and switching surges. Its core function is to simulate the pulse voltage waveforms specified in international standards like IEC 61730 (such as 1.2/50μs), and verify the withstand capability of the internal materials of the modules (such as the encapsulation adhesive film and backsheet) and the circuits under extreme voltage impacts, so as to prevent risks such as hot spot effects, electric leakage or fires caused by insulation failures.

The photovoltaic hipot insulation tester is a specialized device used to evaluate the insulation performance and withstand voltage capability of photovoltaic modules and electrical equipment. It mainly detects the leakage current, insulation resistance, and withstand voltage strength of these components in a high-voltage environment to ensure that the products meet the safety standards and prevent the risks of fires or equipment damage caused by insulation failures. The core functions include: Insulation Resistance Test: Measure the insulation performance of the internal materials of the module (such as EVA adhesive film and backsheet) to ensure there are no potential risks of electric leakage. AC/DC Withstand Voltage Test: Simulate transient high-voltage environments such as lightning strikes and power grid surges to verify the long-term withstand capability of the module. Arc Detection: Identify the phenomena of partial discharge or arcs under high voltage to a

The Ground Continuity Tester is a key device specifically designed to evaluate the reliability of the grounding system of photovoltaic modules. Its main function is to detect the resistance value between the metal frame of the photovoltaic module, the junction box, and the grounding conductor, ensuring that the grounding continuity meets the safety standards. This device measures the resistance of the grounding loop by applying a constant direct current to verify the electrical safety performance of the modules under extreme conditions (such as lightning strikes and electric leakage).

ME-PV-HIG developed by Millennial Solar for photovoltaic industry automated testing systems, the ME-PV-HIG combines withstand voltage testing, insulation resistance measurement, and ground continuity verification in one advanced device. Standard with data acquisition software and supporting remote firmware updates via USB, it fully complies with photovoltaic standards IEC 61215 and IEC 61730.

Solar modules must withstand harsh climatic conditions during application. Among these, the high-temperature and high-humidity environment (DH test) is a core testing item for evaluating photovoltaic module reliability and material durability. This test simulates extreme "dual 85" conditions (85°C temperature and 85% RH humidity, compliant with international standards such as IEC 61215 and UL 1703). Combined with continuous cyclic testing for over 1,000 hours, it systematically validates electrical performance degradation, encapsulation material failure, and long-term reliability predictions for modules.

During the application process of solar modules, they will be subjected to the tests of various harsh weather conditions. Among them, the performance of the modules, such as their ability to withstand high temperature and high humidity as well as the subsequent impact of low temperature, and their ability to withstand long-term moisture penetration, needs to be evaluated. The HF test is carried out to verify and evaluate the reliability of the modules or materials, and to identify manufacturing defects at an early stage by inducing failure modes through thermal fatigue.

The Millennial Thermal Cycle Test Chambe is a reliability testing device specifically designed for solar modules. It accurately simulates a rapidly alternating environment of high and low temperatures to verify the performance, structural stability, and long-term durability of module products under extreme temperature conditions. Moreover, by inducing failure modes through thermal fatigue, it helps users detect potential defects in advance, thus improving product quality and market competitiveness.

Mechanical performance assessment is required for both photovoltaic (PV) modules and building - integrated photovoltaic (BIPV) systems. This assessment is a crucial step in ensuring the long - term functionality of these systems and optimizing commercial products. Performance tests are carried out through methods such as mechanical loading (ML), inhomogeneous mechanical loading (IML), and dynamic mechanical loading (DML) to verify the performance of PV modules under external mechanical loads, ensuring that the modules are free from visual damage and significant loss of electrical functionality. Dynamic Mechanical Load Tester meets the requirements for static mechanical load testing in Article 4.15 of IEC61215 - 2016 standard, Clause MST34 of IEC61730 - 2016 standard, and Clause 41 of UL1703 standard. It is controlled by an 84 - channel pressure sensor, with each cylinder independently controlled. The suction cup spacing is adjustable, and it has a universal structure to ensure

The static mechanical load tester for photovoltaic modules is a specialized device used to simulate the static mechanical loads (such as wind pressure, snow pressure, ice accumulation, etc.) that photovoltaic modules bear during actual outdoor installation. By applying continuous pressure or tensile force, it evaluates the structural strength, material durability, and electrical performance stability of the modules. Its core objective is to verify the compression - resistance, bending - resistance, and tensile - resistance capabilities of the modules in extreme environments, ensure that they comply with international safety standards (such as IEC 61215, IEC 61730, UL 1703, etc.), and reduce the risk of failure during outdoor operation.

During the operation of a photovoltaic (PV) system, PV modules face various environmental challenges, including hail. When hailstones strike the surface of PV modules at high speed, they may cause serious impacts such as surface damage, cell damage, and broken connection wires. Therefore, understanding the impact of hail on PV modules and the modules' impact - resistance capabilities is crucial for ensuring the reliability and durability of the PV system. This hail impact testing machine is based on IEC61215 standard MQT17 development of hail test equipment, through the pressure impact of different diameter (artificial ice balls used to simulate hail) ice balls, and at constant speed impact components, simulate the impact of hail climate on components, verify the ability of components to resist hail impact.

This test is for IEC61215 standard MQT14 in the design and development of the leading end strength test system, testing machine is divided into tensile testing machine, torsion testing machine, adhesion testing machine 3 products. Simulation component in the installation process, the component lead end is unintentionally or intentionally pulled, the equipment to a certain quality of weight applied in the lead end reciprocating pull to judge the lead end tensile performance; The equipment uses the motor to exert a certain torsion force on the lead wire, so as to judge the performance of the lead wire torque resistance.

The module breakage tester is a specialized testing equipment dedicated to evaluating the impact resistance performance of photovoltaic modules (especially BIPV). Its core function is to simulate the scenarios of the glass surface being impacted by the human body or objects, and verify the safety of the modules under extreme mechanical loads.。 The module cracking testing machine is a testing device developed based on Clause MST32 of the IEC61730 - 2 standard to test the ability of photovoltaic modules to resist heavy-object impacts. This machine is equipped with a controllable lifting system. It raises an impact bag filled with lead balls and wrapped in glass ribbon. When the impact bag freely falls from different vertical heights, it generates kinetic energy that acts on the surface of the photovoltaic module. This is to verify the risk of scratches or stabbing injuries after the tempered glass is cracked by the impact.

Solar panels have plastic materials on their surface. During any process of production, installation, and operation, they may be scratched when touched by sharp objects, affecting the insulation of the panels. In severe cases, the internal charged parts will be exposed, resulting in the risk of electric shock. This solution is an automatic testing equipment developed according to IEC61730, UL1703, and ASTM E2685-2009 standards. It is used to test whether the components with polymer materials as the front and back surfaces can withstand the routine operations during installation and maintenance without the risk of electric shock.