Which of the following is not a typical component of a grounding system?

In a grounding system, a transformer is not a typical component. The main purpose of a grounding system is to ensure safety by directing electrical fault currents to the ground and stabilizing voltage levels. A grounding rod is used to connect the system to the earth, while a grounding electrode conductor connects the grounding electrode to the system. A bonding jumper ensures that all metal parts are electrically connected to prevent the buildup of voltage due to a fault condition.

While a transformer plays a role in electrical systems, it primarily functions to change voltage levels, rather than to directly participate in the grounding system. Thus, its inclusion as a typical grounding component is not accurate. Grounding systems focus specifically on components that facilitate grounding and bonding, rather than components that alter electrical characteristics.