This winding resistance tester is applied to the test for all kind of sensibility on-load DC resistance and low-voltage switcher touched resistance, cable or weld resistance of transformer, large generator, CTPT, etc. The instrument is characterized by fast test speed, high precision, intuitive display, strong anti-interference ability, small size, low power consumption, stable and reliable test data.
ZZS-10A DC resistance tester is designed for testing high capacity transformers. The DC resistance of three-phase winding of transformer can be tested simultaneously.
Transformer DC Resistance Tester adopts new power supply technology and has the characteristics of small size, light weight, large output current and can be automatically adjusted according to the load size. The whole machine is sampled by dual chips with higher accuracy. It can automatically complete self-test, data processing, display, printing and other functions, and has automatic discharge and discharge indication functions. The instrument has high testing accuracy and is easy to operate, and can quickly measure the direct resistance of the transformer.
| Item |
Parameter |
Accuracy |
| Test current |
AUTO,<5mA,40mA,200mA,1A,5A,10A |
|
| Range |
0.5mΩ~0.8Ω (10A) |
±(0.2%+2digit) |
| |
1mΩ-4Ω (5 A) |
|
| |
5mΩ-20Ω ( 1 A) |
|
| |
100mΩ-100Ω (200mA) |
|
| |
1Ω-500Ω (40mA) |
|
| |
100Ω-100KΩ (<5mA) |
|
| Resolution |
0.1μΩ |
| Display |
Large size color LCD touch screen |
| Printer |
High-speed thermal printer |
| Data Storage |
1000 sets |
| Operating Temperature |
0~40ºC |
| Relative Humidity |
<90%RH, non-condensing |
| Power supply |
AC 220V, 50Hz/ Built-in battery |
| Max Power |
200W |
| Dimension |
360*290*170(mm) |
| Weight |
Instrument box:6 KG |
wire box:5 KG |
Features and functions:
1.For the Y connection transformer with a neutral lead, when test winding resistance, it can test resistance of A0,B0,C0 three phase simultaneously, to save test time. Test A0 firstly, then test 3 phase simultaneously, which solve the problem that the neutral lead can't be tested when 3 phase tested simultaneously. Make the test data close the single phase test data.
2,for Y type and △ type winding,it can carry out three-phase automatic test and calculate the three-phase unbalance rate;
3,The instrument has a variety of protection functions such as anti-electromotive force protection, break line protection, power off protection.
4,Wide test range, up to 200Ω, high accuracy
5,Power-free clock and date display; local storage and USB storage, local storage can store 200 test data; The disk storage data format is Word format, which can be edited and printed directly on the computer.
6,Thermal printer printing function, fast, silent;
7,Small size, light weight, easy to carry and use.
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