• Comprehensive functions, meeting the test requirements for various types of CTs (such as protection, metering, TP types) including excitation characteristics (i.e., volt-ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary burden, ratio error, and phase error, and also applicable for testing excitation characteristics, transformation 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 generators, burden boxes, voltage regulators, or high-current cables. 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. The MECTP-100P transformer comprehensive tester has comprehensive functions, meeting the test requirements for various types of CTs (such as protection, metering, TP types) including excitation characteristics (i.e., volt-ampere characteristics), transformation ratio, polarity, secondary winding resistance, secondary burden, ratio error, and phase error, and is also applicable for testing excitation characteristics, transformation ratio, polarity, secondary winding resistance, ratio error, and phase error of various PT electromagnetic units.

    2. The MECTP-100P transformer comprehensive tester automatically provides knee point voltage/current, 10% (5%) error curves, 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 select the appropriate standard for testing based on the type and class of the transformer.

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