Portable ratio group tester

Portable ratio group tester

Product Introduction:
Using a variable ratio bridge to measure the transformation ratio of a transformer is cumbersome to operate and has a narrow measurement range, which is no longer suitable for the fast-paced and high-efficiency requirements of modern measurement. To this end, our factory has adopted modern electronic technology and developed a new generation of fully automatic variable ratio group tester, which is an ideal testing instrument for the power industry sector. It has the advantages of small size, light weight, high precision, and good stability. It adopts a large screen LCD Chinese character display, menu operation, user-friendly interface, and variable ratio group can be tested in one go.

Performance characteristics:

1. The testing range is wide, up to 10000.

2. Fast testing speed, completing single-phase testing in 7 seconds.

3. 240 * 128 color LCD display screen, with a more intuitive interactive interface.

4. Z-shaped connection transformer test.

5. It has the functions of blind variable ratio testing and group testing.

6. Non power-off clock and date display, data storage function (can store 50 sets of test data).

7. The protection function of high and low voltage reverse connection.

8. Transformer short circuit and turn to turn short circuit protection function.

Product Features

1. Transformer ratio tester canMeasure the capacity of various distribution transformers, passive measurement, convenient and accurate.

2. The transformer ratio tester comes with an internal power supply and automatically generates a three-phase high-power test power supply.

3. The transformer ratio tester can measure the no-load current, no-load loss, short-circuit voltage, and short-circuit loss of various types of transformers.

4. The transformer ratio tester can automatically perform waveform distortion correction, temperature correction, voltage correction, and current correction (short-circuit test under non rated current conditions). Operators only need to input the correction index according to the transformer type, and the instrument can automatically calculate the corrected results. It is very suitable for units that do not have slightly larger capacity transformer short-circuit test conditions.

5. Voltage circuit width limit: The voltage can be measured up to 750V without switching gears to ensure accuracy. The instrument itself will not be damaged due to incorrect voltage gear selection.

6. The function of indicating the percentage of remaining battery power is not simply a low power alarm.

6. Large screen, high brightness LCD display, full Chinese character menu and operation prompts for friendly human-machine dialogue, touch buttons for easier operation, wide temperature LCD with brightness adjustment, suitable for winter and summer seasons.

7. Users can print out the results of the test data at any time through a micro printer.

8. The test result storage function can store 200 sets of capacity test data.

Product Parameters:

Variable ratio test range: 0.8 to 10000
Group testing scope: 1-12
Accuracy of variable ratio testing:

0.2 level (180V: 0.8-2000)
Level 0.5 (180V: 1000-10000)
0.2 level (10V: 0.8-200)

Variable ratio resolution: 0.0001
Instrument power input: 220V ± 10%, 50Hz ± 1Hz
Operating temperature: -20 ℃ to 40 ℃
Relative humidity: ≤ 85%, no condensation
Host dimensions: 325mm × 280mm × 190mm
Host weight: 6.9kg

Notes:

1. During the measurement, do not touch the sample.

If the test line is short circuited and the high and low voltage are reversed, the fuse will melt. After the insurance is blown, if measurement is performed and it shows' measuring in progress', please wait! Stop afterwards. Please shut down, replace the fuse with the same capacity, and retest.

3. The connection should be protected to ensure good contact. The instrument should be well grounded!

4. The workplace of the instrument should be away from strong electric fields, strong magnetic fields, and high-frequency equipment. The smaller the interference from the power supply, the better. It is recommended to use lighting cables. If the power interference is still significant, the instrument can be charged using AC purification power cables. The capacity of the AC purification power supply should be greater than 200VA.

Portable ratio group tester