What can asymmetrical current potentially lead to within a substation?

Asymmetrical current can create imbalances in the electrical system, leading to increased mechanical forces within equipment such as transformers, circuit breakers, and bus bars. These imbalances can cause greater stress on components, which may complicate grounding practices. When current does not flow evenly, it can generate unwanted mechanical forces that could potentially impact the structural integrity and functionality of electrical devices in a substation, thereby complicating the grounding and overall safety measures required for effective operation.

While improved performance, reduced risks of electrical fires, and enhanced field stability are positive outcomes associated with optimal configurations in substations, asymmetrical current typically introduces challenges and risks that can undermine reliable operation.