■ functional features of automatic transformation ratio tester

▲ full three-phase sinusoidal inverter output, automatic output voltage regulation, soft start and soft stop functions, so the test speed is fast and the precision is high.

▲ transformation ratio, group and polarity test functions of three-phase transformer, single-phase transformer, Pt and Z-type transformer.

▲ it has the function of blind test, that is, the transformation ratio and group test are carried out when the connection mode of high and low voltage is not known.

▲ CT transformation ratio polarity test function, with angle difference test function in single-phase test.

▲ tap gear can be tested up to 197; Wide test range, up to 10000.

▲ output short circuit protection function.

▲ clock and date display without power down; The data storage mode is divided into local storage and USB flash disk storage. The local storage can store 500 test data, and the local storage can be transferred to USB flash disk; The data stored in USB flash disk is in word format, which can be edited and printed directly on the computer.

■ technical parameters

▲ range: 0.9 ~ 10000

▲ accuracy: ± (reading) × 0.1% + 2 words) (≤ 1000) ± (reading) × 0.2% + 2 words) (> 1000, ≤ 3000) ± (reading) × 0.3% + 2 words) (> 3000)

▲ resolution: 0.9 ~ 9.9999 (0.0001) 100 ~ 999.99 (0.01) 10000 and above (1) 10 ~ 99.999 (0.001) 1000 ~ 9999.9 (0.1)

▲ working power supply: AC220V ± 10%, 50Hz

▲ instrument weight: 3.5kg

▲ instrument volume: 260mm × 200mm × 160mm

▲ service temperature: - 10 ℃ ~ 50 ℃

▲ relative humidity: ＜ 90% RH, no condensation