HUAC-2071
Three-Phase Transformer Turns Ratio Tester (TTR), Battery Powered
Battery-powered three-phase TTR tester: ratio, vector group and polarity in about 10 seconds with one connection, ratio 0.9 to 10,000, 3.5 kg.
MODEL HUAC-TRC
Battery-Powered Transformer Loss and Capacity Tester
Battery-powered transformer capacity and loss tester with built-in three-phase source: capacity, no-load and load loss, impedance voltage, 4.5 kg.
- Capacity test with no external power: built-in battery and three-phase source
- More than 100 transformers per charge
- No-load and load loss, impedance voltage with external supply: up to 750 V, 100 A
- Automatic correction for waveform, temperature and non-rated conditions
- Range extension with external VTs and CTs
- Estimates the performance class of three-phase oil-immersed transformers from measured losses
- English user interface; English operating system available
Overview
The HUAC-TRC combines a transformer capacity tester and a transformer characteristic tester in one 4.5 kg instrument. A built-in rechargeable battery and a precision three-phase 50 Hz sine-wave source let it measure transformer capacity without any external three-phase supply, regulator or current booster. One charge is enough for more than 100 transformers.
With an external supply and regulator it also measures no-load current, no-load loss, impedance voltage and load loss, with voltage up to 750 V and current up to 100 A. All results are corrected automatically for waveform distortion, temperature and non-rated voltage and current.
See the full range of transformer test equipment, or send us your transformer data and we will recommend the right instrument.
Technical specifications
| Built-in source | |
|---|---|
| Voltage | 0 – 10 V |
| Current | 0 – 10 A |
| Capacity test | |
| Range | 20 – 65,000 kVA |
| Characteristic test | |
| Voltage | 0 – 750 V |
| Current | 0 – 100 A |
| Accuracy | |
| Voltage, current | ±0.2 % |
| Power | ±0.5 % (cos φ > 0.1); ±1.0 % (0.02 < cos φ < 0.1) |
| General | |
| Charger input | 160 – 265 V AC |
| Insulation | ≥ 100 MΩ to chassis; 2 kV for 1 min at charger input |
| Dimensions | 320 × 250 × 120 mm |
| Weight | 4.5 kg |
| Interface language | English |
Specifications may change without notice. Contact us for the latest datasheet.
Applications
Distribution transformersPower transformersField capacity checksLoss measurement
Downloads
The datasheet and user manual for this instrument are sent on request, usually within one business day.
Frequently asked questions
Does it need a three-phase supply for the capacity test?
No. The built-in battery and three-phase 50 Hz source supply the test signal, so no external supply, regulator or booster is needed.
What does it need for no-load and load loss tests?
An external power supply and voltage regulator, plus a step-up or step-down unit where needed. The instrument measures up to 750 V and 100 A directly, and more with external VTs and CTs.
How many tests per charge?
More than 100 transformers on one full charge.
Have another question? Ask our application engineers.
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