Transformer DC Winding Resistance Test Low Resistance Ohmmeter

1.General

DC resistance of transformer is one testing item which must be tested during ex-work test of semi-finished products and final products, installation, acceptance test and preventive test of electric power department, which can effectively find out material selection of transformer coil, welding, looseness of connection part, missing strand, broken wire etc manufacturing defect and existing hidden problems after operation. In order to meet rapid measurement demａnd of transformer DC resistance, our company has researched and developed new generation DC resistance testing meter on basis of its own technology advantage. The instrument applies new brａnd power technology, which is characterized with small volume, light weight, big output current etc. The whole machine is controlled by a single chip microcomputer, which has automatic self-inspection, data process, display etc functions, it also has automatic discharge and discharge audio alarm and indication etc functions. Testing accuracy of instrument is high, operation is easy and simple, and it can realize rapid measurement of transformer DC resistance.

II.Technical index

1、Output current: 0～10A (Automatically select according to measuring scope)

2、Measuring scope: 0～100Ω

3、Accuracy: 0.2%±0.2μΩ

4、Minimum resolution: 0.1μΩ

5、Working temperature: -20～40℃

6、Ambient humidity: ≤80%RH, no dewing

7、Volume: 420mm length × 320mm width × 200mm height

8、Net weight: 10.6kg

CE Certificate

III.Our Company

HUAZHENG Electric Manufacturing (Baoding) Co., Ltd is established in year of 2008, located at Baoding city, Hebei province, China. It is a professional company specializing in the development and production of electric power testing equipment. Main Product: transformer oil test series, high voltage test series, safety product test series, cable fault location system, relay & microcomputer protection test, etc. All of our products comply with international quality standard and obtained CE and ISO 9001 certificate.