Overview
10A three-phase DC resistance testerIt is a necessary testing item for semi-finished and finished products in transformer manufacturing, factory testing, installation, handover testing, and preventive testing by the power department. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation. In order to meet the needs of rapid measurement of transformer DC resistance, our company has developed this transformer DC resistance tester using our own technological advantages. This instrument is used for magnetic testing and three-phase testing（In，YThe new generation rapid tester, which integrates △, is an ideal device for measuring the DC resistance of large power transformers. The screen adopts a large high-resolution LCD display, which is convenient for on-site use and has a Chinese menu prompt function. The operation is simple and intuitive, and all direct resistance testing items can be completed in one wiring. The testing speed is fast, the accuracy is high, and the range is wide.

10A three-phase DC resistance testerPerformance Characteristics
1.For the testing of windings with star connections and neutral point leads, the instrument can adopt a three-phase simultaneous measurement method for testingA0TheB0TheC0The resistance of the phase saves testing time. And test it firstA0The data of the phase is tested simultaneously in three phases, which solves the problem of the inability to test the neutral point lead out resistance when testing three phases simultaneously, making the test data closer to the single-phase test value.
2.ForYThe instrument can perform three-phase automatic testing and convert the three-phase unbalance rate for winding tests of type and delta.
3.The instrument has the function of assisting magnetic testing, which meets various needs of on-site experiments. And demagnetization function can be optionally selected.
4.The instrument has multiple protection functions such as back electromotive force protection, wire breakage protection, and power-off protection.
5.The instrument has a wide measurement range,Up to 50KΩ, high precision.
6.Clock and date display without power failure; The data storage methods are divided into local storage and USB storage, among which local storage can store test data300Article; The data format for USB storage isWordThe format can be edited and printed directly on the computer.
7.Thermal printer printing function, fast and silent.
8.Small size, light weight, convenient to carry and use.
technical indicators
1.range
single-phase:10A 1.000mΩ～1 Ω 0.2A 10.00 Ω～100Ω
5 A 10.00mΩ～4 Ω 10mA 50.00 Ω～2 kΩ
1 A 100.0mΩ～20Ω 1 mA 500.0 Ω～50kΩ
three-phase:5A + 5A 10.00mΩ～1 Ω 0.2A+0.2A 2.000 Ω～40 Ω
1A + 1A 100.0mΩ～5 Ω 10mA+10mA 30.00 Ω～600Ω
2.Accuracy: ±(Reading X0.2%+2character)
3.Resolution:0.1uΩ
4.Operating temperature:-10℃～50℃
6.Relative humidity:<90%No condensation
7.Instrument volume:370×270×170mm
8.Instrument weight:7Kg(Excluding testing line)