CT PT Analyzer Transformer Characteristic Tester | Frequency Conversion| XHTX206
The XHTX206 CT PT Analyzer is a new-generation comprehensive transformer characteristic tester developed for the power industry, replacing traditional variable-ratio transformers, step-up transformers and current boosters. Based on advanced frequency conversion testing technology with a high-performance DSP and FPGA platform, it fully satisfies excitation (volt-ampere) characteristic, transformation ratio, polarity, secondary winding resistance, secondary burden, ratio error and angle error testing of protection-class, metering-class and TP-class current transformers, as well as excitation characteristic, ratio, polarity and secondary winding resistance testing of PT electromagnetic units.
Applications & Target Audience: Built for current transformer and voltage transformer manufacturers' factory acceptance testing, power science research institutes and high-voltage test laboratories, relay protection commissioning engineers, substation handover and preventive maintenance teams, and power construction commissioning departments that need on-site CT/PT verification without standard transformers, boosters or load boxes.
Key Specifications
| Parameter |
Specification |
| Test Objects |
CT (protection / metering / TP class), PT electromagnetic units |
| Output |
0~180Vrms, 12Arms, 36A (peak) |
| Voltage Accuracy |
±0.2% |
| CT Ratio Range |
1~40000 (1~2000 <0.1%; 2000~5000 <0.2%; 5000~35000 <0.5%) |
| PT Ratio Range |
1~35000 |
| Phase Measurement |
Accuracy ±5min, resolution 0.5min |
| Secondary Winding Resistance |
0~600Ω, <0.5% ±2mΩ |
| AC Burden Measurement |
0~1000VA, <0.5% ±0.02VA |
| Power Supply |
AC220V ±10%, 50Hz |
| Working Environment |
-10~50°C, humidity ≤90% |
| Dimensions / Weight |
365×290×153mm / <10kg |
Key Features
Frequency conversion method tests CT/PT excitation characteristic curves and 10% error curves, handling inflection points up to 60kV with only 180Vrms output and 12Arms (36A peak) current.
On-site verification of current transformers without standard CT, booster, load box, voltage regulator or heavy current cables, greatly reducing workload and improving efficiency.
Ratio error within ±0.1% and angle error within ±5min, enabling field testing of 0.2S class current transformers with a ratio range of 1~40000.
Automatically calculates inflection 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.
One-key testing of CT DC resistance, excitation, ratio and polarity with a single wiring scheme for all CT tests except burden, meeting GB1208 (IEC60044-1), GB16847 (IEC60044-6) and GB1207 standards.
Optional dedicated current booster outputs 180A for on-site through-flow testing.
Advanced Features
Full Chinese dynamic graphical interface with automatic wiring diagrams displayed according to the selected test item; no manual reference needed.
5.7 inch graphic transflective LCD, clearly visible under direct sunlight.
Rotary photoelectric mouse operation for quick and easy parameter entry.
Built-in printer automatically prints test reports; stores up to 1000 groups of test data with power-off retention.
Portable design with total weight under 9kg, easy to carry to field sites.
Combining comprehensive CT/PT testing functions, frequency conversion technology and automated report generation, the XHTX206 delivers laboratory-grade accuracy and field-ready convenience for transformer characteristic testing.
FAQ
Q1: Who is the XHTX206 CT PT analyzer designed for?
It is designed for CT/PT manufacturers' factory acceptance testing, power science research institutes and high-voltage test laboratories, relay protection commissioning engineers, substation handover and preventive maintenance teams, and power construction commissioning departments performing on-site transformer verification.
Q2: What tests can it perform?
It performs excitation (volt-ampere) characteristics, transformation ratio, polarity, secondary winding resistance, secondary burden, ratio error and angle error tests for protection, metering and TP class CTs, plus excitation characteristics, ratio, polarity and secondary winding resistance tests for PT electromagnetic units.
Q3: Why is frequency conversion technology important?
Frequency conversion testing generates the full excitation characteristic curve and 10% error curve using only 180Vrms output and 12Arms current, yet handles CTs with inflection points up to 60kV, eliminating the need for bulky high-voltage boosters and large current sources.
Q4: Can it verify CTs on site without a standard transformer?
Yes. It verifies current transformers on site without standard CT, booster, load box, voltage regulator or heavy current cables, achieving ratio error within ±0.1% and angle error within ±5min, sufficient for 0.2S class CT field testing.
Q5: What accessories, packaging and delivery terms apply?
An optional dedicated current booster is available for 180A through-flow testing. The instrument is delivered in wooden packaging within 5-8 working days, with T/T payment and 1 set MOQ.
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