Knee point voltage test of current transformer

Knee point voltage test of current transformer explained in this video. PS VS 5P CLASS CT:    • PS class CT / Protection special class cur...   ct polarity:    • Current transformer polarity PART-1 in Hin...   insulation resistance test of CT:    • IR TEST OF CT/ Current transformer testing   winding resistance test:    • WR TEST OF CT/CURRENT TRANSFORMER   polarity test of current transformer:    • POLARITY TEST OF CT/CURRENT TRANSFORMER   Knee point voltage test of current transformer:    • Knee point voltage test of current transfo...