JYT-B is designed for special transformer testing such as Z-type transformers, rectifier transformers, Scott, reverse Scott, and balanced transformers.It is an ideal transformer ratio test instrument for power systems, transformer manufacturers and railway systems.

The Scott transformer, also known as Scott's transformer, is a special transformer design used to convert three-phase power into two independent single-phase power sources. It is commonly employed in industrial and power systems, especially in situations where there is a need to supply two-phase loads. In terms of applications, one of the primary purposes of the Scott transformer is to convert three-phase power into two single-phase power sources, catering to devices and systems that require single-phase power. This is particularly useful in certain specialized configurations of power systems.

Regarding the use of a turns ratio tester for Scott transformers, there are specific requirements. The turns ratio tester is utilized to measure the turns ratio of a transformer, which is the ratio of input to output voltage. For Scott transformers, owing to their unique design, the tester needs to accurately measure the turns ratio of the two independent single-phase outputs. Additionally, the tester must support the connection methods specific to Scott transformers to ensure precise and reliable test results. The JYT-B turns ratio tester is designed specifically for transformers like Scott transformers, meeting their unique connection and measurement requirements.

JYT-B FUNCTION INTRODUCTION:

1.The interface adopts an intelligent touch mode, which is simple and convenient to operate. The circuit uses a next-generation all-digital scheme to ensure the long-term stability of the instrument.

2.The instrument can optionally be powered by a built-in battery, eliminating the need for an external AC power source for testing.
3.It internally generates a stable three-phase, two-phase, or single-phase test power supply with constant amplitude and phase.
4.It can test CT, PT, CVT, Z-type transformers, rectifiers, Scott transformers, reverse Scott transformers, and other transformers.
5.It is not affected by the internal wiring mode of the transformer and directly measures the transformer ratio and phase difference on both the high and low voltage sides.
6.The test results are not affected by fluctuations in the frequency or amplitude of the operating power supply and can be powered by generators.
7.No power-off clock or date display; 200 sets of data can be saved in the machine, and the data will not be lost when powered off.
8.Large color LCD display, with clear and easy-to-read data. It also features an RS485 communication interface and a USB storage interface.
9.The instrument has high and low voltage reverse connection protection, transformer short circuit protection, inter-turn short circuit protection, and 380V power misconnection protection.

Power supply

JYT-B provides two power supply modes, AC model uses AC100~240V 50/60HZ, DC model has built-in lithium battery.

The following is the test result interface of JYT-B on Scott transformer：

JYT-B Transformer Turns Ratio Testing Connection:

JYT-B Specification:

Display digits	Four and half digits
Output line voltage	160V max
Test Range	0.9-10000
Accuracy	1000	±0.1%±2
	1000-5000	±0.5%±2
	5000-10000	±1.0%±2
	angle	±0.2 degrees
Resolution	Turns ratio	0.0001
	angle	0.01 degrees
Working power supply	AC100-240V,50/60Hz		16.8V/7.8AH lithium battery
Test data storage	200 groups
Operating temperature	－20℃～40℃
Relative humidity	≤ 80%, non-condensing
Volume	285 mm*218 mm*158 mm
Net weight	6kg