Kennlinienmessung EN

Slide-Kennlinienmessung

Characteristic measurement

TESTING PHOTOVOLTAIC MODULE PERFORMANCE

You suspect that your photovoltaic system is not running properly? The inverter or utility company statement indicate reduced profits or loss of power?

 

TESTING OF PV-MODULES USING CHARACTERISTIC CURVE MEASUREMENT

In order to detect possible error sources in the photovoltaic system, characteristic curve measurement can be used. By measuring the characteristic curve of individual photovoltaic modules or entire module strings, we can detect faulty interconnected solar modules, defective bypass diodes or defective PV modules.

 

ON-SITE CHARACTERISTIC CURVE MEASUREMENT

In order to perform a meaningful characteristic curve measurements on site, constant sunlight is required. This should be at least 800W/m². Disassembly of the solar modules is not necessary.

 

Should it not be possible to do a characteristic curve measurement on site, ENVARIS can examine individual PV modules by means of a flash tests. However, this would require dismantling solar modules and transporting them to our test centre where we can examine the photovoltaic modules under standard testing conditions by using a sunlight simulator.

 

OUR CHARACTERISTIC CURVE MEASUREMENT SERVICES

  • Characteristic curve measurement of PV modules or string
  • Measurement of open circuit voltage & short-circuit current
  • Measurement of series & parallel resistance
  • Measurement of insulation resistance