1. Test objectives

1. Basic test requirements

Detects and records the leakage current between the electrical conductor and the ground (through the frame) in the assembly.

Checks the grounding performance of the border.

Grounding and voltage withstand tests are completed

Data is uploaded to the computer

PLC sorting interface

unmanned operation, fully automatic completion

Reserve the ERP system access port

Reserve ports for testing contact resistance of junction boxes and components

2、Test process：

3、Test principle and test sample

Our system consists of a set of test rigs, a photovoltaic insulation withstand voltage tester, a ground continuity tester, a PC, and upper - computer software. The instruments and the computer are networked through RS - 485. The upper - computer can set the instruments through the RS - 485 bus. Meanwhile, the test data are uploaded to the upper - computer. The software saves and analyzes the data. The upper - computer software can save the data locally or in the user database.

4、The system connection is as follows：

5、Host computer software

Performance characteristics >>

1. DC output of 10A~60A, which can meet the demand of three times the maximum current of the photovoltaic panel.

2. Resistance test range of 0.01uΩ~600mΩ, with stable readings.

3. Test line abnormality detection function to prevent test misjudgment.

4. Multiple interface configurations, suitable for supporting automatic test systems.

5. Complies with the photovoltaic standard IEC61730

Basic Parameters>>

Programmable withstand voltage insulation tester

Basic Parameters >>