Transformer resistance tester

The transformer resistance tester adopts a new power supply technology, with multiple current levels and a wide measurement range. It can automatically select the current according to the load and is suitable for measuring the DC resistance of small and medium-sized transformers and voltage transformers. Protective function *, can reliably protect against the impact of back electromotive force on the instrument, and has more reliable performance. The fully functional transformer DC resistance tester has an audible discharge alarm, clear discharge indication, and reduces misoperation. Intelligent power management technology ensures that instruments always operate in a low-power state, effectively reducing internal heat generation and saving energy.

1. UseTransformer resistance testerBe sure to read this manual carefully before proceeding.

2. The operator should have general knowledge of using electrical equipment or instruments.

3. It can be used both indoors and outdoors, but should be avoided from places such as rain, corrosive gases, etc.

4. Severe vibrations should be avoided.

5. Proper maintenance, care, and adjustment should be carried out by professionals.

6. After the test is completed, be sure to wait for the discharge alarm to stop before turning off the power and removing the test line.

7. When measuring an unloaded voltage regulating transformer, be sure to wait for the discharge indicator alarm sound to stop before switching gears.

8. During the testing process, it is prohibited to move the test clip and power supply line

1. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and easy operation.

2. Adopting new power technology, with multiple current levels and a wide measurement range, the current can be automatically selected according to the load, making it suitable for measuring the DC resistance of small and medium-sized transformers and voltage transformers.

3. Protective function *, can reliably protect against the impact of back electromotive force on the instrument, and has more reliable performance.

4. It has an audible discharge alarm, clear discharge indication, and reduces misoperation.

5. Fast response speed, can directly switch to on load tap changer in measurement state, and the instrument automatically refreshes data.

6. Intelligent power management technology ensures that instruments always operate at low power levels, effectively reducing internal heat generation and saving energy.

7. 65K true color LCD with ultra small pixel points of 320X240 dot matrix.

8. Equipped with a perpetual calendar clock and power down storage, it can store 1000 sets of test data for easy access at any time.

9. Equipped with RS232 and USB interfaces, it can communicate with computers and store on USB drives.

1. Output current:<5mA, 40mA, 200mA, 1A, 5A, 10A

2. Resolution: 0.1 μ Ω

3. Range: 100 Ω -20K Ω (<5mA range) 1 Ω -250 Ω (40mA range)

100mΩ-50Ω (200mA 档)

5mΩ-10Ω (1A 档)

1mΩ-2Ω (5A 档)

0.5mΩ-0.8Ω (10A 档)

4. Accuracy: 0.2% ± 0.2 μ Ω

5. Working temperature: -10~40 ℃

6. Working humidity:<90% RH, no condensation