Learn about high grid impedance issues with Solis G-IMP inverters and how to resolve them.
High grid impedance can occur due to undersized AC cables, which restrict current flow. This can lead to inefficiencies and potential inverter shutdowns.
To fix undersized AC cables, consider upgrading to larger gauge cables that can handle the required current. This will help reduce impedance and improve system performance.
The Solis G-IMP inverter is designed to operate within specific electrical parameters. When the inverter detects high grid impedance, it usually indicates that the AC cables are not adequately sized for the current they are carrying. This can lead to increased resistance, causing voltage drops that may trigger the inverter's protection mechanisms. The inverter continuously monitors the output voltage and current; if it detects that the voltage is outside acceptable limits, it will enter a fault state to prevent damage or unsafe operation.
Users may notice a decrease in energy production as reported by the monitoring app, along with possible error codes or alerts indicating grid impedance issues. The inverter's LED indicators may show abnormal patterns, such as blinking or solid red lights, indicating fault conditions.
Always consult a licensed electrician or certified solar installer when performing electrical work on solar systems. Ensuring safety and compliance with local codes is paramount.
To avoid future occurrences of high grid impedance, ensure that all AC cables are sized according to NEC standards based on the inverter's output and system layout. Regularly inspect connections for wear and corrosion, and consider environmental factors that may affect cable performance. Implement routine performance checks of the inverter and associated components to catch issues early.