• Comprehensive functions, meeting the testing requirements for various types of CTs (such as protection, metering, TP types) including excitation characteristics (i.e., volt-ampere characteristics), ratio, polarity, secondary winding resistance, secondary burden, ratio error, and phase error, and also applicable for testing excitation characteristics, ratio, polarity, secondary winding resistance, ratio error, and phase error of various PT electromagnetic units.




  • On-site calibration of current transformers does not require standard current transformers, current boosters, burden boxes, voltage regulating control boxes, or high-current wires. It uses extremely simple test wiring and operations to achieve calibration of current transformers, greatly reducing work intensity and improving work efficiency, facilitating on-site calibration of transformers.




  • 1.MECTP-100P Transformer Comprehensive Tester has comprehensive functions, meeting the testing requirements for various types of CTs (such as protection, metering, TP types) including excitation characteristics (i.e., volt-ampere characteristics), ratio, polarity, secondary winding resistance, secondary burden, ratio error, and phase error, and is also applicable for testing excitation characteristics, ratio, polarity, secondary winding resistance, ratio error, and phase error of various PT electromagnetic units.

    2.MECTP-100P Transformer Comprehensive Tester automatically provides knee point voltage/current, 10% (5%) error curve, accuracy limit factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence coefficient (Kr), saturated and unsaturated inductance, and other CT and PT parameters.

    3.Tests comply with various transformer standards such as GB1208 (IEC60044-1), GB16847 (IEC60044-6), GB1207, and automatically selects the appropriate standard for testing based on transformer type and class.

    4.Based on advanced low-frequency method testing principle, it can handle CT testing with knee points up to 30KV. It can accurately measure ratio error and phase error, with maximum allowable error for ratio error of ±0.05% and for phase error of ±2 minutes, capable of measuring 0.2S class current transformers with a ratio measurement range of 1 to 40000.