What is the purpose of the S-source bushing in a voltage regulator?

The purpose of the S-source bushing in a voltage regulator is to supply input voltage. This component plays a critical role in ensuring that the voltage regulator has the necessary electrical input to perform its function of regulating voltage and maintaining a stable output level. By supplying the correct input voltage, the S-source bushing helps the regulator adjust and stabilize the voltage levels in the electrical system it serves.

In contrast, controlling the load pertains more to the operation of the regulator and its response to varying load conditions, rather than the specific function of the S-source bushing itself. Providing insulating support is primarily related to safety and preventing electrical shorts but does not encapsulate the function of delivering voltage. Managing the neutral point is related to the overall balance in the electrical system but does not accurately define the specific role of the S-source bushing in the context of supplying the input voltage needed for regulation.