■ functional features of automatic transformer DC resistance tester

▲ all high and low voltage current and voltage test lines can be connected to the transformer at one time, and there is no need to reverse the test line during the test process.

▲ for the winding test with neutral star connection method, the three-phase resistance value can be tested by three-phase simultaneous test, which greatly saves the test time.

▲ for the direct resistance test on the low-voltage side of the three-phase five column low-voltage internal corner transformer, the method of automatic magnetization can be adopted, and the test speed is fast.

▲ it can display and print all the test data of the high, medium and low voltage windings of the transformer, automatically calculate the three-phase imbalance, and print the resistance data converted to the rated temperature.

▲ it has perfect back EMF protection function.

▲ the instrument can store test data for a long time and use USB flash disk to store data.

▲ the instrument has the characteristics of wide temperature adaptability, high precision, shockproof, anti-interference, convenient carrying and so on.

▲ the instrument has the function of eliminating residual magnetism and automatically demagnetizes AB and BC. Vs-3310b can eliminate the residual magnetism at one time.

■ technical parameters

▲ test current: 10a, 5A, 1A

▲ three phase test: 10a and 1A

▲ test range: 10A: 10M Ω ~ 4 Ω, 1A: 1 Ω ~ 20 Ω

▲ split phase test: 10a, 5A and 1A

▲ test range: 10A: 500.0u Ω ~ 1 Ω, 5A: 10M Ω ~ 4 Ω, 1A: 1 Ω ~ 20 Ω

▲ resolution: 0.1U Ω

▲ accuracy: ± (0.2% + 2 words)

▲ overall dimension: 370mm × 263mm × 190mm

▲ weight: 12kg