What is the unit of partial discharge PC?

In the measurement of partial discharge (PD), pc stands for picocoulombs
It is a commonly used unit for quantifying the amount of charge released during partial discharge processes. Coulomb is a unit of charge, while picoku is one trillionth of Coulomb (1 pC=10 ^ -12 C). This unit is used to quantify the amount of charge released during partial discharge processes, helping to assess the severity of the discharge.
Key explanation:
Definition of Partial Discharge
Partial discharge is a small discharge phenomenon in a localized area of the internal insulation system of electrical equipment, such as cables, transformers, insulators, etc. It will not immediately cause breakdown, but long-term accumulation will gradually damage the insulation material.