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-KC-2002
Three-Channel OLTC Waveform Analyzer
Three-channel OLTC analyzer recording A, B and C phases at once: transition waveform, time, resistance and synchronism, with printer and 128 waveform memory.
- Three independent channels record A, B and C phases simultaneously
- Detects open circuits anywhere in the switching cycle
- Waveform analysis of each transition segment
- Connection through tap changer leads or bushings and neutral
- Built-in printer; 128 waveforms kept after power loss
- Aluminium-alloy case with strong anti-interference design
- English user interface; English operating system available
Overview
The HUAC-KC-2002 measures and analyses the electrical performance of on-load tap changers in power transformers and special transformers. Three independent channels record phases A, B and C at the same time and capture the transition resistance and timing during each tap change.
Measurements can be made through the tap changer leads or directly on the transformer’s three-phase bushings and neutral. Dedicated function keys analyse each segment of the waveform for time and resistance. An aluminium-alloy case with power filters and anti-interference circuits keeps readings reliable in substations.
See the full range of transformer test equipment, or send us your transformer data and we will recommend the right instrument.
Technical specifications
| Output | |
|---|---|
| Test sources | 3 independent, max. 0.5 A |
| Measurement | |
| Sampling rate | 10 – 20 kHz configurable |
| Max. record length | 6.4 s |
| Transition resistance | 1 – 40 Ω (Y0); 1 – 20 Ω (Y) |
| Accuracy | |
| Resistance | ≤ ±10 % (1 – 5 Ω); ≤ ±5 % (5 – 40 Ω) |
| Time | ≤ ±1 % |
| Data | |
| Memory | 128 waveforms; serial transfer to PC |
| General | |
| Power supply | 220 V ±10 %, ≤ 200 W |
| Dimensions | 410 × 320 × 200 mm |
| Weight | ≤ 20 kg |
| Interface language | English |
Specifications may change without notice. Contact us for the latest datasheet.
Applications
On-load tap changersPower transformersSpecial transformersOverhaul and maintenance
Downloads
The datasheet and user manual for this instrument are sent on request, usually within one business day.
Frequently asked questions
Why three channels?
Recording all three phases at once shows the switching sequence and synchronism of the tap changer in one operation.
Where do I connect the leads?
Either to the tap changer leads or directly to the transformer’s three-phase bushings and neutral point.
Can I keep results?
Up to 128 waveforms are stored and kept after power loss, and can be transferred to a PC.
Have another question? Ask our application engineers.
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Often ordered together
HUAC-BB
Fully Automatic Turns Ratio Tester with Colour Screen
Fully automatic three-phase turns ratio tester with colour screen and blind test: ratio, vector group and polarity, ratio up to 10,000, battery or AC powered.
HUAC-BBZ-1000
Transformer Turns Ratio Tester with Thermal Printer
Single- and three-phase transformer turns ratio tester with vector group, blind test and built-in thermal printer. Ratio 0.9 to 5000, 4 kg, 220 V AC.