In parallel operation of power sources, what is a primary concern for operational safety?

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In parallel operation of power sources, a primary concern for operational safety is backfeeding prevention. When multiple power sources are connected in parallel, there's a risk that one source could inadvertently feed power back into another source that is not equipped to handle it. This can create dangerous conditions, including equipment damage, fires, or hazardous situations for personnel if maintenance or troubleshooting occurs while the system is energized.

Backfeeding can occur if there are differences in voltage levels or if a power source goes offline, causing current to flow in unintended ways. Therefore, implementing measures to prevent backfeeding, such as using proper switches, circuit breakers, and safety interlocks, is crucial for ensuring safe operations when using multiple power sources in parallel.

Addressing load sharing, power factor, and signal integrity are important aspects of power systems, but they do not pose the immediate safety risks associated with backfeeding, making it the central concern in this context.

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