What should be done if a grounding electrode is not available at the transformer site?

If a grounding electrode is not available at a transformer site, creating an alternative grounding connection elsewhere is the correct course of action. This approach ensures that there is a reliable path for fault currents to safely dissipate into the earth. Grounding a transformer is crucial for protecting equipment, ensuring safety for personnel, and maintaining system reliability.

Establishing an alternative grounding connection might involve utilizing existing grounding systems within proximity, such as those associated with other electrical equipment or structures. This is important for maintaining the necessary grounding potentials and enhancing system stability.

While ignoring the requirement is not an acceptable practice, and using a grounding conductor by itself does not fulfill the grounding electrode requirement, it is essential to provide a proper grounding system wherever electrical installations are made. Similarly, the statement that grounding is not required for ungrounded systems is misleading; while ungrounded systems can operate without a direct ground connection, they still require appropriate grounding strategies to safeguard against transient overvoltages and ensure safety in case of fault conditions.