Can a regulated circuit be tied to an unregulated circuit without any immediate action?

A regulated circuit can indeed be tied to an unregulated circuit only if the voltages and phases are the same. This situation requires careful consideration of the electrical characteristics of both circuits.

When connecting circuits, it is essential to match their voltages to avoid damaging equipment or causing operational issues. If the voltages are different, it could lead to excessive current flow, which might damage components in both circuits. Additionally, the phases must be aligned to ensure that the electrical current flows correctly without causing phase conflicts, which can lead to system instability or failures.

In summary, the connection between a regulated and an unregulated circuit hinges on the proper alignment of both voltage and phase. Making such a connection without ensuring these conditions could result in adverse consequences for the electrical systems involved.