What does monitoring acidity help determine in liquid insulation?

Monitoring acidity in liquid insulation is crucial because it provides insights into the degradation of the insulation fluid. Over time, exposure to heat and electrical activity can lead to the formation of acids, which indicate the breakdown of the insulating properties of the liquid. When acidity levels rise beyond acceptable limits, it signifies that the insulation has deteriorated to a point where it can no longer effectively perform its function. Thus, determining when the liquid should be reclaimed or replaced is essential to maintain the integrity and performance of electrical equipment. By regularly monitoring acidity, maintenance teams can proactively manage the lifecycle of the insulating liquid and ensure reliable operation of substation equipment.