| Customization: | Available |
|---|---|
| After-sales Service: | Online |
| Warranty: | 1 Year |
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Three channel/Three phases 40A DC resistance tester meter
Product overview
The DC resistance test of transformer winding is the test item of transformer after handover, overhaul and change of tap-changer. Under normal circumstances, it is a time-consuming and labor-intensive work to measure the DC resistance of transformer winding and high power inductor equipment (generator) by traditional methods (bridge method and voltage drop method). In order to change this situation, shorten the measurement time and reduce the workload of the tester.
The measurement of transformer DC resistance is a semi-finished product, finished product factory test, installation, handover test and preventive test project of power department in transformer manufacturing, which can effectively find the manufacturing defects of transformer coil material selection, welding, loose connection parts, missing strands, broken lines and other hidden dangers after operation. Three-channel DC resistance tester is a fast test equipment for measuring the DC resistance of transformers, transformers, generators and motor windings. It is especially suitable for three-phase simultaneous measurement of large capacity star-connected transformers, which greatly saves time and improves maintenance efficiency.
Three channel/Three phases 40A DC resistance tester meter
Performance characteristics
1, the transformer with neutral point can be measured at the same time, which greatly saves the measurement time;
2, the instrument has the degaussing function, can eliminate the remanence at one time.
3, the instrument resistance measurement range is wide, high resolution, multi-current gear selection.
4, the instrument has perfect anti-potential protection function.
5, the longitudinal test of the DC resistance of the on-load regulator transformer can be completed at one time.
6, the instrument measurement accuracy is high, with anti-interference, shock-proof, easy to carry and other characteristics.
7, 5.0-inch 65K color touch screen, easy to operate.
8, built-in large capacity non-volatile memory, can store 500 sets of data.
9, built-in high-speed micro thermal printer, can print measurement data.
10, built-in high-precision clock, real-time display time.
11, with U disk storage function.
| Three-phase test: | ||
| Test current | test range | accuracy |
| 40A (2*20) | 500μΩ ~ 200mΩ | ± (0.2% reading +1.0μΩ) |
| 20A (2*10) | 1mΩ ~ 500mΩ | ± (0.2% reading +0.001mΩ) |
| 10A (2*5) | 10mΩ ~ 1.0Ω | ± (0.2% reading +0.01mΩ) |
| 2A (2*1) | 100mΩ ~ 5.0Ω | ± (0.2% reading +0.1mΩ) |
| 0.2A (2*0.1) | 1Ω ~ 50Ω | ± (0.2% reading +0.001Ω) |
| Single-phase test: | ||
| Test current | test range | accuracy |
| 40A | 200μΩ ~ 500mΩ | ± (0.2% reading +0.5μΩ) |
| 20A | 500μΩ ~ 0.8Ω | ± (0.2% reading +1μΩ) |
| 10A | 1mΩ ~ 2.0Ω | ± (0.2% reading +0.001mΩ) |
| 5A | 10mΩ ~ 4.0Ω | ± (0.2% reading +0.01mΩ) |
| 1A | 100mΩ ~ 20Ω | ± (0.2% reading +0.1mΩ) |
| 0.1A | 1Ω ~ 200Ω | ± (0.2% reading +0.001Ω) |
| Resolution | 0.0001μΩ, 5 significant digits | |
| Host size | 420mm×250mm×340mm | |
| Weight | 15kg | |
| Conditions of use | ||
| Ambient temperature | -10ºC ~ 50ºC | |
| Ambient humidity | ≤85℅RH | |
| Power supply | AC220V ±20% mains (50Hz) | |
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