Potential Induced Degradation (PID) Tester-Millennial Solar

Potential Induced Degradation (PID) Tester<br>ME-PV-PID

Potential Induced Degradation (PID) Tester
ME-PV-PID

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.

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What is Potential Induced Degradation (PID) test?

PID test is a quality assurance test performed on manufactured modules to predict how they will perform under different conditions over time. For the PID test of solar modules, the modules are placed at a temperature of 85°C with a humidity of about 85% and under a load of 1000v for 96 hours. PID testing simulates power loss under the sub-voltage and temperature conditions to which a component is exposed.

How to conduct a Potential Induced Degradation (PID) test?

For the test, a module-like stack of solar cells, polymer foil and glass layers was placed between two metal electrodes. While heating the bottom (ground) electrode, a high positive voltage (voltage equivalent to PID) is applied to the upper electrode of the module.

Content	Specification
Power supply	Voltage range: -2000～2000V Voltage accuracy: 0.5%FS Voltage resolution: 1V Current Capability: 1mA
Current sensor	Test range: -1～1mA Test accuracy: 0.5%FS Resolution: 0.001mA
Data acquisition card	Support RS485 communication, support 0-5V, 0-10V, 4-20mA signal input 14-bit resolution 20 analog inputs T/C software configuration, low voltage current input Isolation voltage: 3000 Vdc Support Modbus/RTU control DC24V power supply
Industrial computer	Power supply: 300W Memory: 4G DDR Hard disk: 1T Monitor: DELL-IN1940MW
Test line	Material: Silicone Voltage rating: 25KV Core diameter: 0.5mm², multi-strand copper wire Working temperature: -60-250℃ Outer diameter: 5.8mm Length: standard 6m/set
Temperature and humidity sensor	Temperature range: -40-120°C Accuracy: ±1°C Humidity range: 0-100%RH Accuracy: ±3%RH

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