BZD-IID Transformer DC Resistance Tester

The BZD series transformer DC resistance tester is a multi-purpose DC resistance measuring instrument that can replace traditional single and double arm bridges. Based on Ohm's law, it uses AC pre charging to test the DC resistance of transformer and other inductive devices such as transformers, generators, etc. It has the advantages of simple operation and fast measurement speed.

BZD-IIC Transformer DC Resistance Tester:

Technical Specifications:

测量范围： 1mΩ－20mΩ、20-200mΩ、0.2-2Ω、2-20Ω、20-200Ω、200Ω-2kΩ；

Measurement accuracy: 0.2 level;

Resolution: 1 μ Ω;

Constant current source: 2A (1 μ Ω -2 Ω), 0.2A (2 Ω -200 Ω), 0.02A (20 Ω -2000 Ω);

Working voltage: DC 11V-14V with built-in 2AH rechargeable battery, AC 220V;

BZD-IIE Transformer DC Resistance Tester;

Technical Specifications:

Current range: 10A, 20A, 40A;

测量范围： 10A：1mΩ－20mΩ、20A：1mΩ－1Ω、40A：0.5mΩ－500mΩ；

Resolution: 1 μ Ω;

Accuracy: 0.2 level;

Power: 100W;

BZD-III Transformer DC Resistance Tester:

Technical Specifications:

Resistance measurement range: 100-20, resolution 0.1;

Accuracy of resistance measurement: 0.2%;

Current source output range: 3 * (0-10A);

Working temperature: -10 ℃ -40 ℃;

Environmental humidity: 10% -85%;

Storage temperature: -20 ℃ -50 ℃;

Volume: 420 * 260 * 210mm;

Weight: 10kg (excluding testing line);

Features:

Three measurement circuits measure synchronously, display simultaneously, and automatically calculate the imbalance rate.

The functional configuration is highly flexible, capable of three-phase measurement, two-phase measurement, and single-phase measurement. The output current can be combined arbitrarily. For a 3 * 10A tester, it can be combined into 10A+10A+10A mode, 10A+10A mode, 20A mode, and 10A mode, making it extremely convenient to use.

The automatic programmable current source technology, as mentioned earlier, has 1000 current gears starting from a small value of 0, which are controlled by an internal microcontroller based on the measured resistance to achieve a wide measurement range and optimal measurement state, without the need for manual switching of current gears.