160V Ratio Tester - Four-Level Testing Equipment Qualification Product Features:
1. The automatic transformer ratio and group tester has a wide measurement range, up to 10000.
2. Fast testing speed, completes three-phase testing in 7 seconds.
3. Testing of Z-connected transformers.
4. Has blind ratio and group testing functions. (When blind testing, the high-voltage side connection method must be known.)
5. Non-volatile clock and date display, data storage function.
6. Protection function against reverse connection of high and low voltage.
7. Protection function against transformer short circuit and inter-turn short circuit.
8. Thermal printer output function, fast and silent.
9. Small size, light weight.
160V Ratio Tester - Four-Level Testing Equipment Qualification Functions
Automatic Transformer Ratio and Group Tester The main function and purpose is to test the turns ratio or voltage ratio of power transformers during the production process of semi-finished and finished products, before new transformers are put into operation, and during the operation of transformers in the power system, according to the preventive test regulations of the Ministry of Power, which require regular turns ratio or voltage ratio testing of operating transformers. The traditional ratio bridge is cumbersome to operate, the readings are not intuitive, and necessary conversions are required, with the test result only providing data for one phase ratio. The automatic transformer ratio and group tester overcomes the shortcomings of traditional ratio bridge testing. The screen completes three-phase ratio testing at once, with fast testing speed and high accuracy. It greatly saves on-site testing time and brings high efficiency to customer tests.
Precautions:
1. Before using this instrument, be sure to read this operation manual carefully.
2. The operator of the instrument should have general knowledge of electrical equipment or instruments.
3. This instrument can be used indoors and outdoors, but should avoid use in rain, corrosive gases, excessive dust, high temperature, and direct sunlight.
4. The instrument should avoid severe vibration.
5. Maintenance, care, and adjustment of the instrument should be carried out by professionals.
6. The yellow, green, and red test clips correspond to the A, B, and C phases of the transformer, do not connect them incorrectly.
7. Do not reverse the high and low voltage cables.
8. When testing a single-phase transformer, only use the yellow and green clips, do not use them incorrectly, and unused test clips should be left floating.
Technical Parameters:
1. Range: 0.9 to 10000
2. Accuracy: 0.1% digit (below 500)
0.2% 2 digits (500~2000)
0.3% digit (2000~4000)
0.5% digit (above 4000)
3. Resolution: minimum 0.0001
4. Output voltage: 160V, 10V automatic gear shifting
5. Working power supply: AC220V 50HZ
6. Operating temperature: –20℃~ 40℃
7. Relative humidity: ≤85%, no condensation



