How to Select a Series Power Supply?

When purchasing a string-type EL power supply, several key parameters require focus:

1. Voltage

Ensure the power supply's output voltage range covers the actual needs of the photovoltaic (PV) power plant. Most current plants require the power supply to provide 0-1500V output. For example, common 1500V programmable imported power supplies can adapt to over 95% of PV plants.

Risk of insufficient voltage: Inability to meet the normal operating requirements of PV modules, failing to effectively excite electroluminescence (EL) and affecting EL detection results.

Risk of excessive voltage: Exceeding the module's withstand range may cause module damage.

2. Current

Select the power supply's current output capability based on the specifications and quantity of the PV modules to be detected. High-power modules require larger current output to ensure sufficient luminescence.

Risk of insufficient current: The module's luminescence intensity is insufficient, leading to blurry detection images and difficulty in accurately identifying internal defects.

Risk of excessive current: May cause irreversible damage to the module.

3. Power

The power supply's power should match the total power of the connected PV modules.

Risk of insufficient power: When detecting multiple modules or high-power modules simultaneously, unstable power supply may occur, causing detection interruptions or inaccurate data.

Solution: Precisely calculate the total module power during selection to ensure a suitable power supply.

Recommended Model: FT-150050 String-Type EL Power Supply

Voltage: 0-1500V output range, suitable for most PV plants.

Current: 0-5A output, meeting detection needs for various PV modules.

Power: 0-8KW output, providing sufficient power for stable detection.

Technical Advantages

Programmable Imported Technology:

Voltage accuracy: 0.001V; Current accuracy: 0.001A.

Power stability: ±0.002%; Output accuracy: ±0.001%.

Comprehensive Protection Functions: Reverse current protection and short-circuit protection effectively safeguard modules and the power supply during detection, reducing the risk of equipment damage.