Blind Test Ratio Tester Features:
1. Automatically measures the connection group.
2. Automatically performs group transformation, directly measuring the ratio of single-phase, three-phase transformers and instrument transformers.
3. Automatically switches phase sequence.
4. Automatically switches range.
5. Automatically calibrates the meter.
6. After inputting the standard ratio, it can automatically calculate the relative error.
7. After one measurement is completed, the test voltage is automatically cut off.
8. Measurement results are automatically saved, test data can be printed, and 20 historical measurement data can be stored.
Blind Test Ratio Tester Technical Specifications
1. Range: 0.9 to 10000.
2. Accuracy: 0.1% ± 2 digits (below 500);
0.2% ± 2 digits (500 to 2000);
0.3% ± 2 digits (2000 to 4000);
0.5% ± 2 digits (above 4000).
3. Resolution: minimum 0.0001.
4. Output voltage: 160V, 10V automatic gear shifting.
5. Working power supply: AC power supply mode - requires external AC power supply AC220V ± 10%, 50HZ.
DC power supply mode - no external power supply needed (the instrument has a built-in lithium battery pack, battery capacity
24V/6Ah).
Safety Measures
1. Be sure to read this operation manual carefully before using this instrument.
2. This instrument can be used indoors and outdoors, but should avoid rain, corrosive gases, and environments with excessive dust.
3. The instrument should avoid severe vibration.
4. Maintenance, care, and adjustment of the instrument should be performed by professionals.
5. The yellow, green, and red colors of the test clips correspond to phases A, B, and C of the transformer respectively. Please ensure correct wiring.
6. Do not reverse the high and low voltage cables.
7. When measuring single-phase transformers, only use the yellow and green clips; the red clip should be left floating.
Performance Features
1. Wide test range, up to 10000.
2. Fast test speed, completes single-phase test in 7 seconds.
3. 240*128 color LCD display, more intuitive interactive interface.
4. Z-connection transformer testing.
5. Has blind test ratio and group test functions.
6. Non-volatile clock and date display, data storage function (can store 50 sets of test data).<
