The LDFA-106A CT/PT TESTER is a fully functional testing equipment designed specifically for protective and metering current transformers (CT) and voltage transformers (PT), suitable for laboratory and field environments. Integrated with core functions such as volt ampere characteristic testing, ratio polarity analysis, angle difference ratio measurement, and secondary load testing, it can automatically generate error curves and inflection point values, support offline testing, and is widely used for performance verification and maintenance in power systems, industrial equipment, and transformer production fields. Its lightweight design and intelligent operating interface significantly improve detection efficiency and convenience.
| Operational Power Supply | AC220V±20V, 50～60Hz |
| Equipment Power Supply Output Waveform | Sine Wave |
| Single Machine Output Voltage of Excitation Characteristic | 0～2500V |
| Excitation Current Set | 0～20 A |
| Single Machine Output Current of Transformation Ratio Test | 0～1000 A |
| CT ratio measurement range | 5～25000A/5A（5000A/1A） |
| PT ratio measurement range | 1～500KV |
| Load Range | 5～500VA |
| Resistance measurement range | 0.1～300Ω |
| Error | ≤0.5%（0.3%*Reading+0.2%*Range） |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
Complete CT/PT full project testing on a single machine, including excitation characteristics, transformation ratio polarity, angle difference ratio, secondary load, direct resistance testing, and AC withstand voltage testing.
Automatically calculate 5% and 10% error curves to accurately determine the combination of transformer protection windings.
Equipped with high-precision sensors, the excitation test error is ≤ 0.5%, and the transformation ratio measurement accuracy is ≤ 0.5%.
Built in fast micro printer, on-site real-time output of test reports, supports USB data transfer and PC generated Word documents.
Large screen LCD graphical display, user-friendly interface, intelligent prompt function reduces the risk of misoperation.
Support comprehensive testing mode, completing volt ampere characteristic and variable ratio polarity tests synchronously in one wiring.
Multiple safety protection design: automatic overcurrent/overvoltage protection, grounding detection, high-voltage side forced grounding, etc.
Compliant with international safety standards, suitable for complex on-site environments (humidity ≤ 90%, temperature -10 ℃~40 ℃).
It can test medium and low voltage transformers, zero sequence transformers, GIS and bushing CT, and PT volt ampere voltage multiples can be adjusted (1.2-3.5 times).
Lightweight and portable design (size 450 × 300 × 430mm), meeting the needs of mobile detection.
Local storage of 3000 sets of test data, no loss in case of power failure, supports quick query and comparative analysis of historical data.
