Quick Answer
An EG4 system can be expanded with minor modifications, allowing for the addition of new panels and inverter capacity without major rewiring or equipment replacement.
Expansion Capability
The EG4 system’s modular design allows users to easily add new panels and increase the inverter’s capacity. This can be achieved by adding new DC strings, which can be connected to the existing inverter via a simple DC combiner box. For example, a 3-phase EG4 inverter can be expanded from 5 kW to 7 kW by adding a second inverter and connecting it to the existing system.
System Requirements
To expand an EG4 system, the user must ensure that the existing inverter’s DC and AC sides are compatible with the added equipment. This typically involves checking the inverter’s DC input voltage and current ratings, as well as the AC output voltage and frequency. The system’s grounding and earthing requirements must also be verified to ensure compliance with local electrical codes.
Practical Considerations
When expanding an EG4 system, it’s essential to consider the overall system efficiency and performance. This may involve adjusting the DC string configuration, selecting the right DC combiner box, and configuring the inverter’s settings to optimize the system’s output. Additionally, users should ensure that the expanded system meets local electrical codes and regulations, and that all equipment is properly labeled and documented.
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