JYT-A adopts a high-precision multi-core CPU from ARM (Advanced RISC Machines, USA), offering high measurement accuracy and resolution. It is a fully automatic three-phase testing device designed specifically for the turn ratio of power, distribution, and instrument transformers. It accurately measures the voltage on the no-load transformer windings by applying voltage to the high-voltage winding and then determines the transformer turn ratio by displaying the ratio of these voltages.

JYT-A is based on the most advanced technology available today. It can be used for testing single-phase and three-phase transformers, CT, PT, CVT, Z-type connections, and transformers with neutral points, including those with and without taps, meeting the requirements of the IEC 60076-1 standard.

JYT-A can also test different types of transformers (such as single-phase, delta to star, star to delta, delta to delta, star to star, delta to zigzag, etc.) without the need to switch the test connection cables during testing; the test can be performed directly. It can automatically compare the test results with the nameplate voltage of the transformer input by the user, calculate the turn ratio deviation, and print out the error percentage for each test. Even if the user does not input any data, it can still accurately measure the transformation ratio.

JYT-A features high and low voltage reverse connection protection, transformer short circuit protection, inter-turn short circuit protection, and a very high ability to eliminate electrostatic and electromagnetic interference in high-voltage electric fields, effectively ensuring the accuracy of the test results.

FUNCTION INTRODUCTION:

1.The interface adopts intelligent touch mode, which is simple and convenient to operate.The interface adopts an intelligent touch mode, which is simple and convenient to operate.

2.High-stability sine wave power supply; the test voltage is automatically adjusted according to the load.

3.The test data is accurate when the generator is powered, even if the quality of the power supply in the field is poor.

4.The test speed is fast. The three-phase turn ratio test can be completed in one wiring, taking only 10 seconds.

5.CT, PT, CVT, and Z-connection transformers can be tested.

6.It is suitable for ratio measurement of distribution transformers distribution transformers and power transformers, current transformers (CT), voltage transformers (PT), and Z-type transformers.

7.A variety of short circuit measurement methods are available, making fault judgment more convenient.

8.No power-off clock and date display; 200 sets of data can be saved in the machine, and the data will not be lost when powered down.

9.Large color LCD display, with clear and easy-to-read data. RS485 communication interface and USB storage interface.

10.The instrument has high and low voltage reverse connection protection, as well as transformer short circuit and inter-turn short circuit protection.

11.Bluetooth communication function (optional).

JYT-A Connection with Transformer:

JYT-A turn ratio tester Specification:

turn ratio tester, transformer test instrument, winding resistance tester, transform