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HF-IT-210 Instrument Transformer Analyzer
The Instrument Transformer Analyzer conducts integrated testing for current and voltage transformers. It accurately measures ratio error, phase displacement and winding parameters, suitable for laboratory calibration and on-site substation commissioning.
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The HF-IT-210 CT/PT Analyzer is a multi-functional instrument transformer tester designed in compliance with IEC60044-1/GB1208, IEC60044-2/GB1207, IEC60044-6/GB16847 and C57.13 standards.
It can carry out various tests including excitation characteristics, excitation parameters, transformation ratio, ratio error, phase error, polarity, winding resistance and hysteresis curve of current and voltage transformers. The maximum knee-point voltage for tested current transformers can reach 45kV.
Alternative Names for HF-IT-210 CT/PT Analyzer
Transformer Dynamic Characteristic Tester, CT & VT Dynamic Characteristic Tester, Comprehensive Transformer Tester, Transformer V-I Characteristic Comprehensive Tester, CT PT Comprehensive Tester, CT V-I Characteristic Tester, PT V-I Characteristic Tester, Transformer Characteristic Comprehensive Tester, Transformer Transient Characteristic Tester, V-I, Ratio & Polarity Integrated Tester
Product Features
The CT/PT Analyzer supports the following tests for Current Transformers (CT):
- Excitation Characteristic Test
- Turn Ratio Detection
- Ratio Error & Phase Error Calibration
- Polarity Verification
- Secondary Winding Resistance Measurement
- Secondary Burden Measurement
- 5% and 10% Error Curve Measurement
- CT Transient Characteristic Test and Analysis
- Automatic CT Nameplate Parameter Deduction
- Measurement of CT parameters including knee-point voltage/current, accuracy limit factor, instrument security factor, secondary time constant, remanence coefficient, accuracy class, saturated/unsaturated inductance
- Measurement of CT core hysteresis curve
The CT/PT Analyzer also performs the following tests for Voltage Transformers (VT/PT):
- PT Turn Ratio Detection and Phase Error Measurement
- PT Ratio Error & Phase Error Calibration
- PT Polarity Verification
- PT Secondary Winding Resistance Measurement
- PT Secondary Burden Measurement
- PT Excitation Characteristic Measurement
Main Application Scenarios
- Parameter verification against CT nameplate data
- Parameter calibration for CT under actual connected burden
- Analyze the impact of CT transient characteristics on protective relays
- Parameter verification against PT nameplate data
- PT secondary burden verification
FAQ for Instrument Transformer Analyzer
Q1: What is an Instrument Transformer Analyzer used for?
A: It is an all-in-one test device for current transformers (CT) and voltage transformers (VT/PT). It completes excitation characteristics, ratio error, phase displacement, winding resistance, secondary burden and transient characteristic tests.
Q2: What standards does this instrument comply with?
A: Designed according to IEC60044-1, IEC60044-2, IEC60044-6, GB1208, GB1207, GB16847 and IEEE C57.13.
Q3: What is the maximum knee-point voltage for CT testing?
A: The maximum test knee-point voltage for CT can reach 45kV.
Q4: Can it test both CT and VT in one unit?
A: Yes. It supports comprehensive testing for both current transformers and voltage transformers without extra accessories.
Q5: Which CT parameters can the analyzer measure?
A: Excitation curve, turn ratio, ratio & phase error, polarity, secondary resistance, secondary burden, 5%/10% error curve, transient characteristics, knee-point voltage, ALF, ISF, remanence coefficient, hysteresis curve and more.
Q6: What VT/PT tests are available?
A: Turn ratio, ratio error, phase error, polarity check, secondary winding resistance, secondary burden and excitation characteristic measurement.
Q7: Can the equipment automatically deduce CT nameplate parameters?
A: Yes. It supports automatic deduction of CT nameplate data based on measured test results.
Q8: Is it suitable for substation on-site commissioning?
A: It adopts integrated lightweight design, ideal for factory incoming inspection, laboratory calibration and field substation acceptance tests.
Q9: Can it analyze the influence of CT transient performance on protection relays?
A: Yes. It carries out CT transient characteristic testing and analysis to evaluate impacts on protective relay operation.
Q10: What other names are used for this tester?
A: CT PT Analyzer, CT VT Comprehensive Tester, Transformer V-I Characteristic Tester, Instrument Transformer Test Set.
Q11: Does the analyzer require external auxiliary power during CT excitation testing?
A: No external high voltage source is required. The built-in high voltage module supports independent excitation characteristic testing.
Q12: What protection functions are equipped?
A: Built-in overvoltage, overcurrent and discharge protection to ensure safe operation during testing and prevent damage to the transformer under test.
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