The National Electric Power Department's Preventive Test Procedures requires periodic turns ratio or voltage ratio tests, including semi-finished and finished products in the production process, transformers before operation and during operation in the power system. The traditional variable ratio bridge operation is cumbersome, the reading is not intuitive, and the necessary conversion is required, and the test result only reflects the one-phase transformation ratio. The instrument overcomes the shortcomings of the traditional variable ratio bridge test, and completes the three-phase ratio test at one time, and the test speed is fast and the accuracy is high, which greatly improves the test efficiency.
|Accuracy||0.1%±2 words (below 500)|
|0.2%±2 words (500~2000)|
|0.3%±2 words (2000~4000)|
|0.5% ± 2 words (4000 or more)|
|the output voltage||160v/10v (automatic selection)|
|working power||ac220v ± 10%, 50hz|
|the use of temperature||–10 ° C ~ 40 ° C|
|relative humidity||≤ 80%, no condensation|
1.the test range is wide, up to 10,000.
2.the test speed is fast, complete the single phase test in 10 seconds.
3.z-shaped connection transformer test.
4.with blind measurement ratio, group test, tap position test function.
5.no power down clock and date display, data storage function (can store 50 sets of test data).
6.high and low voltage reverse connection protection.
7.transformer short circuit, turn-to-turn short circuit protection.
8.thermal printer output function, fast, silent.
9.small size and light weight.