What is the Vector group test?
Measure angular displacement and phase sequence (vector group) of the transformer.
Operation Instructions, Safety Precautions & Test Preparations
Single -phase transformer or single-phase PT test wiring
The yellow and green test clamps of the red test line at the high-voltage test end are connected to the high-voltage end of the tested product, and the yellow and green test clamps of the black test line at the low-voltage test end are connected to the low-voltage end of the tested product.
Single-phase CT test wiring
The yellow and green test clamps of the red test line at the high voltage test end are connected to the second side of the tested product, and the yellow and green test clamps of the black test line at the low voltage test end are connected to the first side of the tested product.
Test wiring for three-phase transformer
The yellow, green and red test clamps of the red test line at the high-voltage test end connect the A, B and C phases at the high-voltage end of the tested product; the yellow, green and red test clamps of the black test line at the low-voltage test end connect the a, B and C phases at the low-voltage end of the tested product.
Instructions for use of printer
The key of the printer and the indicator of the printer are integrated. When the printer is powered on, the indicator light is normally on, and it flashes when the paper is missing. Press the button once and the printer passes the paper.
Printer change paper: take out the rotating spanner and open the paper cover; Load the printer paper and pull out a piece of printer paper (tear the teeth out a little bit). Close the cover and press the print head to the print head. Press the print head back to the print head with a bit of force.
Operation instruction
After all the test wires are connected, turn on the power switch and enter the "main menu" screen after the instrument is initialized, as shown in the figure below.