Current Transformer Tester

Current Transformer Tester Technical Specifications:

• Comprehensive functionality for testing protection, measurement, and TP category current transformers (CTs), as well as voltage transformer (PT) electromagnetic units. Performs excitation characteristics (voltage-current characteristics), ratio, polarity, secondary winding resistance, secondary load, ratio deviation, and angle deviation measurements.
• Automated calculation of knee point voltage/current, 10% (5%) error curves, accurate limit factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence coefficient (Kr), and saturated/unsaturated inductance parameters for CTs and PTs.
• Compliance with IEC 60044-1 (GB1208), IEC 60044-6 (GB16847), GB1207, and related transformer standards. Automated standard selection based on transformer type and accuracy class.
• Advanced low-frequency testing methodology capable of handling CT tests with inflection points up to 30 kV.
• Professional English graphical user interface with intuitive operation.
• Non-volatile storage for 2,000 test datasets. Data export via USB to PC for analysis using dedicated software, with report generation in Microsoft Word format.
• Streamlined testing procedures: single-operation completion of CT winding resistance, excitation, ratio, and polarity tests. Uniform wiring configuration for all CT tests except external load measurements.
• Portable design with total weight under 9 kg.

Standards Compliance:

• IEC 60044-1 (GB1208) “Instrument Transformers – Part 1: Current Transformers”
• IEC 60044-6 (GB16847) “Instrument Transformers – Part 6: Requirements for Protective Current Transformers for Transient Performance”

Technical Specifications:

• Power Supply: AC 220V ±10%, 50 Hz
• Measurement Capability: Protection-class CT/PT
• Output Range: 0–180 V_rms, 12 A_rms, 36 A (peak)
• Voltage Measurement Accuracy: ±0.2%
• CT Ratio Testing Range: 1–30,000, Accuracy: ±0.2%
• PT Ratio Testing Range: [Specifications truncated for brevity]