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Laboratorio de pruebas

QA y I&D

La mayoría de los proveedores de maquinaria y motores rotativos utilizan mediciones de descarga parcial y factor de pérdida dentro de su programa de garantía de calidad y pruebas de aceptación final. Los resultados de medición pueden ayudar a mejorar el diseño del sistema o facilitar la búsqueda de materiales de aislamiento adecuados.

Laboratorio de pruebas

The quality of the stator winding insulation system should be verified according to the following brief description of the test procedure.

The test requires an AC power source capable of supplying PD-free 50 or 60Hz variable voltage up to at least the rated line-to-ground voltage of the insulation system under test. Partial Discharge measurements are taken in voltage steps up to the rated line-to-ground voltage of the insulation system to measure the discharge inception voltage (DIV) and the discharge extinction voltage (DEV). The maximum PD magnitude at line-to-ground voltage should be less than 50pC.

References:

IEEE 268-2000
"IEEE Recommend Practice for Measurement of Power Factor Tip-Up of Electric Machinery Stator Coil Insulation"

EN50209-1998
"Test of insulation of bars and coils of high-voltage machines"

IEC 60894-1987
"Guide for a test procedure for the measurement of loss tangent of coils and bars for machine windings"

Diagrama de conexión con ICMflex

ICMflex conectado a una única barra de estator bajo prueba