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Impulse Voltage Test System

Impulse voltage test system is designed to generate impulse voltages that simulate lightning strikes and switching surges. The purpose of the test is to verify that the module will be able to withstand over-voltages of atmospheric origin. The test also is performed to ensure that the module can withstand any line-conducted surges.

Test Standard

Testing Method

IEC61730-2

MST 14

Impulse voltage test

1. Technical Parameter
Impulse Voltage Generator: 1.2μs (±30%) 
Positive pulse width: 50μs (±20%) 
Voltage peak value: ±3% 
Polarity: positive/negative 
Load conditions: various types of pF~nF level components, mainstream crystalline silicon modules, bifacial modules, shingled modules, PERC modules, half-cut modules, CIGS modules, etc. 
2. Reinforced insulation: 
Highest impulse voltage: approximately 30KV 
Note: Designed according to the load + system voltage 1500V + reinforced insulation + altitude factor 6001~7000m. Altitude factor refers to the 6001~7000m defined in IEC 61730-1:2016, with a reinforcement factor of 1.95. 
3. Voltage display accuracy: 0.01KV 
4. Surge output mode: manual, automatic (switchable) 
5. Surge times: single, continuous (adjustable) 
6. Surge interval: adjustable 
7. Software and hardware parts: 
Chinese operating software 
Large display monitor Load matching unit, switch different capacitive components, plug and socket connection method 
Oscilloscope: 1 set, displays waveform 
High Voltage Probe (P6039A or negotiable): attenuation ratio 1000:1, pulse voltage <27KVp-p 
Electrical control cabinet