direct currentResistance rapid testerIt is a commonly used detection instrument that can measure the DC resistance of transformer windings, check the quality of lead welding or connection, whether there is a turn to turn short circuit or open circuit in the winding, and whether the contact of the tap changer is good. Today we will mainly introduce the application and characteristics of the DC resistance rapid tester, hoping to help users better apply the product.

Application of DC Resistance Rapid Tester

direct currentResistance rapid testerIt is a high-precision replacement product for DC single and double arm bridge. The instrument adopts advanced switching power supply technology, with a measurement speed more than 100 times faster than that of a bridge. The display part displays the measurement results on a four and a half digit LCD liquid crystal display, and the environmental temperature or test current value on a three and a half digit LCD liquid crystal display. It overcomes the disadvantage of other similar products that display values on LED in sunlight, and also has an automatic arc extinguishing function. This instrument has the advantages of fast speed measurement, high accuracy, intuitive display, strong anti-interference ability, small size, low power consumption, stable and reliable test data, and is not affected by human factors. The instrument is equipped with a rechargeable battery pack (12V), which can be used for both AC and DC, making it convenient for on-site and field testing.

direct currentResistance rapid testerPerformance characteristics

Fast testing speed: This instrument has a large output charging current of up to 2A, which can effectively compensate for the current inertia of large inductive devices during measurement, accelerate iron core saturation, shorten charging time, and improve testing speed. It is hundreds of times faster than traditional instruments with single and double arm bridges.

High accuracy: In addition to using advanced four terminal measurement method, this instrument also adopts advanced constant current power supply technology to maintain a relatively stable charging current for inductive loads, with stable anti sensing ability and strong anti-interference ability, thereby ensuring measurement accuracy. And using imported components from abroad, the measurement results have high accuracy and good repeatability.

Wide measurement range: The resistance measurement range is 1 μ Ω～ 2K Ω, with a wide range.

Dual use of AC and DC: This instrument comes with a rechargeable battery pack for AC and DC power supply. It is designed to be portable and easy to use and carry.