Transformer Ratio Tester - Yangzhou Darui - Yangzhou Darui Electric Co., Ltd.

Transformer Ratio Tester - Yangzhou Darui

Published: 2020-08-24 09:00:34

Category: Transformer Ratio

Product Description

Transformer Ratio Tester

Darui Electric recommends:

The transformer ratio tester is an electronic measuring instrument with a ratio measurement range of 1—10000.

Features of Transformer Ratio Tester:

1. Automatically measure the connection group;

2. Automatically change the group;

3. Automatically switch phase sequence;

4. Automatically switch range;

5. Automatic calibration;

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. Set data, measurement results are automatically saved, and previous data can be viewed;

9. For measuring on-load transformers, only input the ratio once.

10. Equipped with serial R232 interface.

11. Equipped with a micro printer, which can also directly print out the data results.

Parameters of Transformer Ratio Tester:

1000-10000 0.5 class

4. Power supply: AC220V ±10%, 50HZ

5. Operating ambient temperature: -5℃ ─ 40℃

6. Operating ambient humidity: <85%

7. Volume: 430×320×215mm3

8. Weight: 8Kg

Operation Method

1. Wiring: Turn off the power switch of the instrument, and connect the wires according to the following method. Single-phase transformer Three-phase transformer Instrument Transformer Instrument Transformer A A A A B X B B C Not connected C C a a a a b x b b c Not connected c c The neutral point of the transformer is not connected to the instrument or to the ground. Connect the instrument ground wire. Insert one end of the power cord into the power socket on the instrument panel, and connect the other end to the AC 220V power supply. Note: Do not reverse the high and low voltage connections of the transformer! Set wiring method Set standard ratio Start data measurement View historical data ↑: Select Confirm: Execute 2. Turn on the power switch of the instrument. After a while, the main menu appears on the LCD screen, as shown below. The selected menu is displayed in reverse (white text on black background). At this time, press the "↑" key to select the function menu, and press the "Confirm" key to execute the corresponding function. Note: Press and release the key for one key input. Set wiring method Connection: Yy Set standard ratio Start data measurement View historical data ↑: Select Confirm: Save 3. Connection setting: After entering the connection setting, the LCD screen displays as follows. At this time, press the "↑" key to select the connection, and press the "Confirm" key to save the connection and return to the main menu. Set wiring method Set standard ratio Ratio=25.000 Start measurement View historical data →: Shift ↑↓: Increase/Decrease Confirm: Save 4. Set standard ratio: After entering the standard ratio setting, the LCD screen displays as follows. At this time, press the "→" key to select the data digit, and the selected digit is displayed in reverse. Press the "↑" and "↓" keys to modify the data. After selecting a digit, press the "↑" and "↓" keys, and the digit cycles from 0 to 9. If it is the first digit, it can only cycle from 1 to 9, and 0 will not appear. After selecting the decimal point, press the "↑" and "↓" keys to move the decimal point cyclically. Set wiring method Set standard ratio Tap ratio=0.00% Start measurement View historical data →: Shift ↑↓: Increase/Decrease Confirm: Save If the transformer has taps, the standard ratio set here is the standard ratio of the middle tap. After pressing the "Confirm" key to save the ratio, the LCD screen displays as follows. The setting method of the tap ratio is the same as that of the standard ratio. If the transformer has taps, set it according to the actual value; otherwise, set it to 0.00%. After pressing the "Confirm" key to save the tap ratio, return to the main menu. 5. After preheating for 5 minutes, select "Start data measurement" and press the "Confirm" key, then display as follows. Connection=Yy? Ratio=25.000? →: No Confirm: Yes ↑↓: Change tap The ratio value displayed on the screen is the actual standard ratio value needed for this measurement. Press the "↑" and "↓" keys to modify this value. Each modification step = set standard ratio × tap ratio. After the measurement is completed, display as follows. 3rd time Total 3 times Group: 12 o'clock AB: 25.008 0.03% BC: 25.010 0.04% CA: 25.000 0.00% ↑: Page up →: Print Confirm: Return After each measurement, the instrument automatically saves the data, up to 30 data items. If more than

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Product Details

Transformer Ratio Tester - Yangzhou Darui