Transformer DC resistance is necessary testing items in transformer semi-finished, finished products testing, installation, transfer testing and power sector preventive trials, which will be effectively discover loose joints, missing stocks, dosconnection and other defects and operation risks from transformer coil selection, welding and connection points.

Output current: 0 to 10A(automatically selected by range)

Range: 0 to 100 Ω

Accuracy: 0.2 % ± 0.2 μΩ

Minimum resolution: 0.1 μΩ

Operating temperature: -20 ~ 40 °C

Environmental humidity: ≤ 80 % RH, no condensation

Working power supply: AC: AC220V ± 10 %, 50Hz ± 1Hz

Volume: 420mm long × 320mm wide × 200mm high

Net weight: 10.6 kg

The instrument can automatically select the output current (up to 10A).

Wide measurement range (0_-100_), can measure transformer, transformer and other inductive DC resistance.

The display adopts 480 *272 dot matrix 65K color large screen, and the display data is clear and easy to read.

This instrument has the functions of calendar, 100 sets of data storage, automatic temperature conversion, etc. It can shut down without losing data. This machine also has a printer which can print test data. The U-disk interface is convenient to export data for reference and editing.

This instrument is equipped with RS485 communication interface, with the upper computer control software, to achieve remote control measurement.

This instrument has the function of three-phase simultaneous measurement to complete three-phase direct resistance measurement for one-time connection of star connection winding, automatically calculates three-phase unbalance rate, greatly saves measuring time and improves working efficiency. The phase-by-phase test function can also be used to test the transformer connected by YN and D (Y) mode. The test is completed and the three-phase unbalance rate can be calculated automatically.

The instrument also has the function of automatic magnetic aid. For the test of the winding of iron core five-column low-voltage corner transformer, the method of high-low voltage series excitation is used to test. The magnetic aid circuit of the winding is automatically connected in the instrument, which can quickly and accurately test the DC resistance of the low-voltage winding.

This machine has sound discharge alarm, clear discharge indication, reduce misoperation.

This machine has the function of protection, alarm and protection of input misconnected AC380V power supply, which can reduce the damage to instrument caused by misoperation. It also has perfect anti-arc ability of back-EMF protection.

The machine has the characteristics of wide temperature, high precision, shock-proof, anti-interference, high stability and convenient carrying.