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• Time of issue:2019-06-15
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(Summary description)
　　Overview of Transformer DC Resistance Tester Manufacturer Price Test Equipment

　　Referred to as DC resistance meter, DC resistance meter, transformer DC resistance tester, DC resistance detector, DC digital bridge, etc.

　　Overview: DC resistance test is an indispensable test item after the transformer is handed over, overhauled and tap changer changed. Under normal circumstances, using traditional methods (bridge method and voltage drop method) to measure the DC resistance of transformer windings and high-power inductance equipment is a time-consuming and labor-intensive task. In order to change this situation, shorten the measurement time and reduce the workload of testers and developed a fast DC resistance tester. With high-speed microcontroller as the core, built-in rechargeable battery and charging circuit, high-speed A/D converter and program-controlled current source technology, it achieves unprecedented measurement results and highly automated measurement functions, with high accuracy, wide measurement range, and stable data , Good repeatability, strong anti-interference ability and perfect protection function. Features such as fast charging and discharging speed. The instrument. Small size, light weight, and easy to carry. It has the characteristics of rapid measurement, convenient use and high measurement accuracy. The self-checking and automatic calibration functions reduce the difficulty of using and maintaining the instrument. It is an ideal device for measuring the DC resistance of transformer windings and high-power inductance equipment.

　　The measuring current of the DC resistance tester is usually: 1A, 3A, 5A, 10A, 20A, 30A and other different measurement gears. The instrument is composed of two parts: a constant current power supply and a voltage signal detection, with a five-digit LCD digital display. The output current file is adjustable, suitable for direct resistance measurement of various small and medium-sized transformers

　　Transformer DC resistance tester manufacturer price test equipment product nickname:

　　DC resistance tachometer, DC resistance tester, transformer winding DC resistance tester, transformer direct resistance tachometer, transformer direct resistance fast tester

　　Precautions:

　　Due to the large output current range of this device, you must consider the current selection not to exceed the tolerance range of the device under test before measuring. Excessive current will cause the resistance of the measured resistance to gradually change due to the current heating effect.

　　The output current of the automatic current block is to use a larger current as much as possible, and may output various currents from 0 to the maximum value.

　　The two wires of the same test clamp should be respectively connected to the current and voltage terminals of the same color.

　　After each test is completed, wait for the discharge instruction to end before disconnecting the test line. The operator should pay attention to safety.

　　The memory can store up to 250 measurement results, and the oldest record will be overwritten after 250 times.

　　If there is an abnormal situation during the measurement, please press the reset button or shut down. If it fails to return to normal, please contact our company, and do not disassemble it by yourself.

　　Technical index

　　1. Output current: 10A, 20A, 40A, 100A

　　2. Range: 10μΩ～100mΩ (100A)

　　100μΩ～500mΩ (40A)

　　200μΩ～1Ω (20A)

　　500μΩ～2Ω (10A)

　　3. Accuracy: 0.2%

　　4. Resolution: 0.1μΩ

　　5. Working temperature: 0～40℃

　　6. Ambient humidity: ≤90%RH, no condensation