A PEBB unit or Power Electronics Building Block contains your IGBT stack (Insulated Gate Bipolar Transistor), a semiconductor device used for switching high power applications. IGBT failures inside a PEBB can be caused by various factors, including heat, over voltage, or over current. If your PEBB unit fails you will see PEBB(1)IGBT FAILURE and your inverter will be down!
Can You Prevent PEBB(1)IGBT FAILURE?
Over heating: Solar inverters generate heat during opeation. Over time excessive temperatures can lead to degradation of the semiconductor material inside the IGBTs and eventually cause them to fail.
Make sure you keep your Kaco XP100 inverter filters clean to allow proper airflow into your unit to prevent over heating issues and IGBT degradation.
Ensuring your inverter fans are still operational is another important thing you can do to prevent PEBB failure.
-
- Overvoltage/Overcurrent: A fault on your system causing sudden voltage or current spikes can cause a short circuit to the IGBT and damage your PEBB unit. Make sure your site is properly maintained and checked every year to ensure your production does not stop!
If your inverter is down due to PEBB failure, contact us! Don’t wait for lengthy shipping and exorbitant costs to bring your production back. We offer onsite repair options at a fraction of the cost.