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According to statistics, most of our customers in the electric power industry are concerned about a problem, that is, the principle of the automatic transformer ratio tester. Its also belongs to transformer turns ratio test kit. In fact, the automatic transformer ratio tester is an innovative product that overcomes the traditional transformer ratio tester. The shortcomings of the bridge test, the screen uses a large-screen high-resolution LCD display, and the power supply uses lithium battery power, which is more suitable for on-site use.
The automatic transformer ratio tester is mainly used for the transformer ratio group test, PT, CT ratio polarity test, the test speed is high and the accuracy is high. We talked about the principle of the automatic transformer ratio tester, which is the working principle of the transformer automatic ratio tester. Now let me introduce the principle of our automatic transformer ratio tester.
The principle of the automatic transformer ratio tester is divided into the following points:
The first point: 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 test object; 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 test object.
Point 2 Single-phase CT test wiring
The yellow and green test clamps of the red test line at the high-voltage test terminal are connected to the secondary side of the tested product; the yellow and green test clamps of the black test line at the low-voltage test terminal are connected to the primary side of the tested product.
Point 3 Three-phase transformer test wiring
The yellow, green, and red test clamps of the red test line at the high voltage test end are connected to the A, B, and C phases of 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 are connected to a, b of the low voltage end of the test product , C-phase.
Fourth point: Intelligent power management
The automatic transformer ratio tester will automatically dim the LCD backlight when it is not operated for a long time to save power; the instrument has a low-battery charging prompt function and an over-discharge protection function; when the power of the instrument is low, it can be charged with a charger and can Use the instrument normally during charging.
Fifth point: Printer instructions
The printer buttons and printer indicator lights are integrated. After the printer is powered on, the indicator light is always on when it is normal, and it flashes when it is out of paper. Press the button once and the printer feeds paper.
Printer paper change: pull out the rotating wrench, open the paper compartment cover; load the paper, and pull out a piece (exceeding a bit of the paper tearing teeth), the direction of the paper is the liquid side (smooth side) upwards; close the paper Compartment cover, print head paper feed shaft press the printing paper, press the print head paper feed shaft back to the print head with a little force, and push the rotating wrench in to reset.
The above five points are the general description of the principle of the automatic transformer ratio tester. It can also be said that the operation instructions of the automatic transformer ratio tester are used. It is still hoped that the user can summarize according to the product usage when using it.
