Partial discharge is a localized electrical discharge that occurs within an insulating material of electrical equipment, such as transformers, switchgear, or cables. It happens when the insulation is partially degraded or has voids, cracks, or impurities.
PD is often an early warning of insulation degradation or failure. By detecting it promptly, operators can prevent small defects from escalating into catastrophic failures, avoiding costly repairs and unplanned downtime. Monitoring PD helps identify issues in their infancy, allowing maintenance and repairs to be carried out before significant damage occurs. This proactive approach extends the operational life of critical electrical assets.
Partial discharge monitoring is essential for industries and critical facilities such as manufacturing plants, data centers, hospitals, transportation systems, and banks. These sectors rely on PD monitoring to protect equipment, prevent costly downtime, and ensure continuous, uninterrupted operations. By detecting early signs of insulation failure, PD monitoring helps maintain the reliability and safety of their electrical systems.
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