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HF-TC-616 Dry Type Transformer Material Analyzer
This Dry Type Transformer Material Analyzer integrates DC resistance, turns ratio and power parameter testing. It supports multi-range auto-switching, ±0.2% basic accuracy and 0.1μΩ resolution, with wide operating temperature and reliable insulation for dry transformer factory & on-site inspection.
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Article Overview
The Dry Type Transformer Material Analyzer is a professional, portable testing instrument designed for accurate winding material identification and comprehensive performance detection of 10kV dry-type distribution transformers. It effectively distinguishes copper and aluminum coils, preventing counterfeit transformers with aluminum windings disguised as copper.
Integrating passive capacity measurement, no-load & load loss testing, short-circuit voltage and no-load current analysis, the device supports automatic waveform, temperature, voltage and current correction to deliver highly standardized test results.
Built with an industrial sunlight-readable touch screen and humanized graphic operation system, it allows on-site rapid inspection, data printing and DC resistance testing, fully meeting quality inspection, grid acceptance and energy efficiency supervision requirements for power transformers.
Product Features
- Accurately identify winding materials of 10kV dry-type distribution transformers.
- Passively and precisely measure the rated capacity of all kinds of distribution transformers without external power supply.
- Measure load loss, no-load loss, short-circuit voltage, no-load current and other parameters of various transformers.
- Automatically complete waveform distortion correction, temperature correction, voltage correction for no-load tests under non-rated voltage and current correction for short-circuit tests under non-rated current. Operators only need to input correction coefficients according to transformer types, and the tester will calculate corrected results automatically. It is ideal for institutions lacking facilities to conduct short-circuit tests on medium and large transformers.
- Support external voltage transformers and current transformers for range expansion, enabling tests on transformers with any specifications.
- Equipped with a 7.0-inch industrial full-touch color LCD screen with 800*480 graphic dot matrix, high brightness, wide temperature range and wide viewing angle, clearly visible under direct sunlight.
- Adopt full-Chinese menus and graphic operation prompts for user-friendly human-machine interaction. Touch buttons simplify operation and adapt to all seasons.
- Built-in mini printer allows users to print test data and results anytime.
- Integrate DC resistance measurement for small and medium transformers as well as voltage transformers. Adopt innovative power supply technology with multiple current gears and wide measuring range, which can automatically select test current based on loads.
Technical Specifications
| Item | Parameters |
|---|---|
| 1. Input Characteristics | |
| Active Part | |
| Voltage Measurement Range | 0~10V |
| Current Measurement Range | 0~10A |
| Passive Part | |
| Voltage Measurement Range | 0~750V wide range (external voltage transformer connectable) |
| Current Measurement Range | 0~100A with fully automatic internal range switching (external current transformer connectable) |
| 2. Accuracy | |
| Voltage, Current, Frequency | ±0.2% |
| Power | ±0.5% (CosΦ>0.1), ±1.0% (0.02<CosΦ<0.1) |
| 3. Turns Ratio Test Accuracy | 0.5% |
| 4. DC Resistance Parameters | |
| Output Current | ≤5mA, 40mA, 200mA, 1A, 5A, 10A |
| Resolution | 0.1μΩ |
| Measurement Range | |
| ≤5mA range | 100Ω-20KΩ |
| 40mA range | 1Ω-250Ω |
| 200mA range | 100mΩ-50Ω |
| 1A range | 5mΩ-10Ω |
| 5A range | 1mΩ-2Ω |
| 10A range | 0.5mΩ-0.8Ω |
| Accuracy | 2‰ for above 5mA; 5‰ for below 5mA |
| 5. Operating Temperature | -10℃~+40℃ |
| 6. Insulation | |
| (1) Voltage & Current Input Terminals to Cabinet Shell | Insulation resistance ≥100MΩ |
| (2) Working Power Input Terminals to Outer Shell | Withstand AC power frequency 2kV (RMS) for 1 minute test |
| 7. Dimensions | 41cm×35cm×18cm |
| 8. Weight | 10Kg |
Packing List – Dry Type Transformer Material Analyzer
| No. | Item Description | Model / Spec. | Qty | Unit | Remarks |
|---|---|---|---|---|---|
| 1 | Dry Type Transformer Material Analyzer (Main Unit) | HF-TC-616 | 1 | Set | Host device |
| 2 | Voltage Test Leads | Red/Black, 2m | 2 | Pair | High-voltage input |
| 3 | Current Test Clips | 10A, 2m | 2 | Pair | Low-resistance measurement |
| 4 | AC Power Cord | 220V, 1.5m | 1 | Piece | With 3-pin plug |
| 5 | Fuse | 5A / 250V | 2 | Piece | Spare |
| 6 | Operation Manual | English version | 1 | Copy | Printed hardcopy |
| 7 | Product Certificate of Conformity | — | 1 | Piece | Factory QC passed |
| 8 | Warranty Card | 12 months | 1 | Piece | Serial numbered |
| 9 | Calibration Report | Factory calibrated | 1 | Copy | Traceable data sheet |
| 10 | Carrying Handle / Strap | — | 1 | Set | Portable accessory |
| 11 | Export Wooden Case | 41×35×18cm | 1 | Piece | Plywood, fumigation-free |
| 12 | Packing List / Shipping Documents | — | 1 | Set | Attached to case exterior |
FAQ: Dry Type Transformer Material Analyzer
Q1: What is the measurement range of the instrument’s active input channel?
A1: Voltage: 0~10V; Current: 0~10A.
Q2: Can the passive input channel connect to external transformers? What are its measuring ranges?
A2: Yes.
- Voltage range: 0~750V wide range, compatible with external voltage transformers (VT).
- Current range: 0~100A with fully automatic internal range switching, compatible with external current transformers (CT).
Q3: What is the accuracy for voltage, current, frequency and power measurement?
- Voltage, Current, Frequency: ±0.2%
- Power: ±0.5% when CosΦ＞0.1; ±1.0% when 0.02＜CosΦ＜0.1
Q4: How accurate is the turns ratio test function?
A4: The turns ratio test accuracy reaches 0.5%.
Q5: What output current gears are available for DC resistance testing?
A5: 6 optional output currents: ≤5mA, 40mA, 200mA, 1A, 5A, 10A.
Q6: What is the resolution of DC resistance measurement?
A6: The resolution is 0.1μΩ.
Q7: What resistance range does each DC current gear support?
- ≤5mA gear: 100Ω ~ 20KΩ
- 40mA gear: 1Ω ~ 250Ω
- 200mA gear: 100mΩ ~ 50Ω
- 1A gear: 5mΩ ~ 10Ω
- 5A gear: 1mΩ ~ 2Ω
- 10A gear: 0.5mΩ ~ 0.8Ω
Q8: What is the accuracy standard for DC resistance measurement?
A8: 2‰ for test current above 5mA; 5‰ for test current below 5mA.
Q9: What is the allowable operating temperature range of the analyzer?
A9: -10℃ ~ +40℃.
Q10: What are the insulation performance standards of the device?
A10:
- Insulation resistance between voltage/current input terminals and the cabinet shell ≥100MΩ.
- The power input terminal can withstand 2kV power frequency AC (RMS) for a 1-minute withstand voltage test against the outer shell.
Q11: What are the overall dimensions and weight of the main unit?
A11: Dimensions: 41cm×35cm×18cm; Net weight: 10Kg.
Q12: What functions can this Dry Type Transformer Material Analyzer realize?
A12: It integrates active/passive electrical parameter measurement, transformer turns ratio test, and winding DC resistance test, specially designed for comprehensive performance detection of dry type transformers.
Q13: Is the instrument equipped with complete supporting accessories for delivery?
A13: Yes. Standard delivery includes main unit, test leads, power cord, spare fuses, English operation manual, calibration report, certificate of conformity and export packing case.
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