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HF-TC-617 Transformer Capacity Characteristic Tester
This Transformer Capacity Characteristic Tester accurately identifies transformer real capacity and measures no-load loss, load loss, impedance voltage. It features high measurement precision, auto-ranging design, suitable for factory production and on-site substation inspection of dry and oil-immersed transformers.
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Overview
The Transformer Capacity Characteristic Tester is a portable integrated testing device. Equipped with an internal three-phase AC power source, it measures no-load loss, load loss and impedance voltage, and automatically identifies transformer rated capacity and energy efficiency grade. It simplifies on-site wiring and suits acceptance inspection, asset verification and energy efficiency assessment of distribution transformers.
Product Features
- It can accurately measure the capacity of various distribution transformers with passive measurement, delivering convenient and reliable testing.
- Built-in power supply; the unit automatically generates high-power three-phase test power.
- Capable of measuring no-load current, no-load loss, short-circuit voltage and short-circuit loss of various transformers.
- Accurately identify transformer models via no-load tests, covering S7, S9, S11, S13, S15 oil-immersed transformers and dry-type transformers such as SCB9, SCB10, SCB11.
- Automatic correction functions including waveform distortion correction, temperature correction (two modes: simple temperature correction and separate additional loss correction), voltage correction (no-load test under non-rated voltage), and current correction (short-circuit test under non-rated current). Ideal for organizations lacking conditions to conduct short-circuit tests on medium-to-large transformers.
- Measures harmonic content and total harmonic distortion (THD) of voltage and current.
- Supports basic vector analysis and vector diagram plotting.
- Displays waveforms of all electrical parameters and can function as an oscilloscope.
- Wide-range voltage circuit: maximum measurable voltage up to 750V. Precision is guaranteed without range switching, eliminating instrument damage risks caused by incorrect voltage range selection.
- Dual-range current measurement: maximum measuring range up to 100A, while accurately measuring milliamperes-level signals, suitable for impedance voltage testing of potential transformers (PT).
- Capacity measurement range: 20 kVA ~ 100,000 kVA.
- Real-time battery percentage indicator instead of basic low-battery alarm only.
- Large high-brightness color LCD screen. Chinese menu and operation prompts provide user-friendly HMI. Conductive silicone touch buttons simplify operation and extend service life.
- Test results can be printed anytime via an on-board mini printer.
- Data storage function, able to save up to 200 sets of capacity test records.
Technical Parameters
| Item | Parameter |
|---|---|
| 1. Input Characteristics | |
| Active Part | Voltage measurement range: 0~10V Current measurement range: 0~10A |
| Passive Part | Voltage measurement range: 0~750V, wide range Current measurement range: 0~5A~100A, internal dual-range |
| 2. Accuracy | |
| Voltage | ±0.2% |
| Current | ±0.2% |
| Power | ±0.2% (CosΦ>0.2), ±0.3% (0.02<CosΦ<0.2) |
| 3. Operating Temperature | -10℃ ~ +40℃ |
| 4. Charging Power Supply | AC 160V~260V |
| 5. Insulation | (1) Insulation resistance between voltage/current input terminals and chassis ≥100MΩ (2) Power input terminals withstand power frequency 2kV (RMS) for 1 minute test against enclosure |
| 6. Main Unit Dimensions | 32cm×24cm×13cm |
| 7. Weight | 3kg |
Packing List – Transformer Capacity Characteristic Tester
| Item | Qty |
|---|---|
| Main Tester Unit | 1 |
| Power Cable | 1 |
| Voltage Test Cables | 2 |
| Current Test Cables | 2 |
| Alligator Clips Set | 1 set |
| User Manual | 1 |
| Certificate of Calibration | 1 |
| Carry Hard Case | 1 |
FAQ for Transformer Capacity Characteristic Tester
Q1: What main tests can this transformer capacity characteristic tester perform?
A1: It can measure no-load loss, load loss, impedance voltage, no-load current, and automatically identify the rated capacity and energy efficiency grade of distribution transformers.
Q2: Does the tester need an external voltage regulator for field testing?
A2: No. The instrument integrates a built-in three-phase AC test power supply, which eliminates the need for external boosters and regulators and simplifies on-site wiring.
Q3: What is the applicable operating temperature range of the tester?
A3: The operating temperature ranges from -10℃ to +40℃, suitable for most outdoor and substation field test environments.
Q4: Can this tester work with rechargeable battery power without mains supply?
A4: Yes. It supports off-grid testing via built-in lithium battery. The charging power supply accepts AC 160V~260V.
Q5: What accuracy level can the tester achieve for voltage, current and power measurement?
A5: Voltage and current measurement accuracy is ±0.2%. Power accuracy is ±0.2% when CosΦ＞0.2, and ±0.3% for 0.02＜CosΦ＜0.2.
Q6: Is the tester portable for field inspection tasks?
A6: Absolutely. The main unit weighs only 3 kg with dimensions 32cm×24cm×13cm, and it is equipped with a dedicated carry hard case for transportation.
Q7: What insulation safety standards does the instrument comply with?
A7: The insulation resistance between input terminals and chassis is ≥100MΩ. The power input can withstand 2kV power frequency withstand voltage test (RMS) for 1 minute.
Q8: Which scenarios are suitable for this transformer capacity tester?
A8: Widely used for transformer handover acceptance, asset verification, energy efficiency audit and on-site power theft inspection by power utilities and EPC companies.
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