SFA-106B Series Automatic Transformer Comprehensive Characteristics Tester is specially designed to test transformer voltage-current characteristics, 5% and 10% error curves, secondary circuit check, ratio and polarity judgment. Only need to set the highest test voltage, current and step length, the device will automatically increase the voltage, automatically draw the voltage-current curve, save the manual adjustment, manual recording, drawing curves and other tedious work. Fast, simple and convenient. If the single machine cannot meet the test requirements, an external booster can be used for the test. It is a high-performance and cost-effective multi-function test instrument. Its performance is unique, and this instrument is currently in the leading position in China.
The SFA-106B is a fully automatic tester for CT and PT devices, capable of measuring voltage‑current characteristics, ratio, polarity and error curves. The instrument automatically steps voltage and current, draws characteristic curves on a built‑in LCD and can print them with an integrated micro‑printer.
The manual provides detailed safety notices, panel layout, software operation using a rotary mouse, connection diagrams for single‑machine and external booster tests, data storage and PC communication via RS‑232, as well as fault maintenance procedures and service information. This manual is written in Chinese.
| Input voltage (single machine) | 220 V / 380 V auto‑switching |
|---|---|
| Ratio measurement accuracy | < 1 % (220 V), < 1 % (380 V) |
| Power supply | AC 220 V ±10 %, 50/60 Hz |
| Operating humidity range | ≤ 85 % RH |
| Dimensions / Weight | 420 × 300 × 270 mm, 21 kg |
| Communication interface | RS‑232 (COM1) |
| Maximum external booster voltage | 0‑2000 V |
It accepts a single power input of either 220 V or 380 V and automatically switches between them.
Connect the RS‑232 communication port to the PC (set to COM1) and use the software to upload test data.