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.
