KDZR-5A Transformer DC resistance tester
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Description
DC resistance tester
Functional characteristics
● Large output current, wide measuring range, small size, light weight, simple operation;
● Fast test speed, high measurement accuracy, good retest, strong anti-interference ability;
● With perfect protection circuit and discharge alarm function, reduce misoperation, strong reliability;
● High-speed microcontroller is used to automatically complete steady current judgment, data acquisition and resistance display;
● Wide temperature 110*60 large screen Chinese LCD display, outdoor bright light display content is still clearly visible;
● Built-in large capacity non-volatile memory, can store 500 groups of measurement data, with printing function or USB output function (only two options);
● Built-in high-precision real-time clock function: date and time calibration;
● The instrument uses two power supply modes: mains AC220V power supply and built-in battery power supply, using Japan Panasonic 16Ah large capacity battery, intermittent test up to 8 hours, do not shut down continuous full current test up to 2.5 hours, to solve the problem of no power and can not be tested on site;
● The test process is controlled by microcomputer, which automatically completes self-calibration, steady current judgment, data processing and resistance display;
● With perfect anti-potential protection function;
● Automatic switch between AC and DC power supply, with charging indicator function, overcharge protection;
● Longitudinal test of DC resistance of on-load regulator transformer can be completed with one power supply;
● Suitable for the rapid measurement of DC resistance of transformers with voltage levels of 110kV and below.
DC resistance tester
| Main technical indicators | |
| Measuring range: 0 ~ 2000Ω. (Six stops in total)
Test current: 5A(20mΩ, 200mΩ);
2 a Ω (2);
0.2 A (20 Ω);
0.02 A Ω (200);
0.002A(2000Ω).
Resolution: 1μΩ(20mΩ file);
10μΩ(200mΩ);
0.1mΩ(2Ω file);
1mΩ(20Ω file);
10mΩ(200Ω file);
0.1Ω(2000Ω file).
Accuracy: 1mΩ ~ 2000Ω (±0.5% RDG +2 d) |
|
| Power consumption | ≤30W |
| working temperature and humidity | -10℃ ~ 50℃; ≤ 85 % RH |
| withstand voltage | AC1.5kV 50HZ 1min
|
| working power supply | 14.8V/2.2Ah lithium-ion rechargeable battery; AC220V 50 HZ (±10 %)
|
| size | 350mm(L)× 260mm(W)× 140mm(D) |
| weight | about 3kg |
