Inverters should not have which feature if operating in parallel with other power sources?

Inverters operating in parallel with other power sources need to maintain a specific phase relationship and voltage level to function effectively within the system. Neutral grounding in this context can lead to issues because it may cause unintended current paths or imbalances in the electrical system, particularly if the inverters are not designed to synchronize appropriately.

When inverters are connected in parallel, they share the load, and differences in grounding can result in circulating currents or ground loops, which can adversely affect performance and safety. By avoiding neutral grounding in a parallel configuration, the system can prevent these issues and ensure better control over voltage and current distribution among the inverters.

Output regulation, on/off switches, and cooling systems are essential features that help maintain inverter performance and reliability. Output regulation ensures the voltage delivered remains consistent regardless of load variations, the on/off switch allows for safe operation and maintenance, and cooling systems help prevent overheating during operation. Therefore, these features are crucial for inverters working in parallel with other power sources.