Residual voltage
Residual voltage test is used to detect the presence of residual voltage in a system, after the main source of power is disconnected.
Residual voltage test is used to detect the presence of residual voltage in a system, after the main source of power is disconnected.
The AC dielectric strength test is performed by setting an acceptability threshold of the maximum current.
The DC dielectric strength test is carried out when there are very significant capacitive currents.
Partial discharges (PD) are electrical discharges localized in the dielectric insulation, limited only to a part of the dielectric material.
The SURGE test is the most reliable method to test the insulation of winding systems and can also be used to test partial discharges.
The Protective Earth – PE or ground earth test measures the earth ground rod’s resistance.
The DC insulation resistance test evaluates the quality of the insulators, the possible presence of humidity and pollution.
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