Handheld Transformer Turn Ratio Tester Ttr Test Kit

I. Overview

During the production process of semi-finished and finished products of power transformers, before the newly installed transformer is put into operation and according to the preventive test procedures of the Ministry of Electric Power, it is required to test the turns ratio or voltage ratio of the running transformer, which can check the correctness of the transformer turns ratio, the condition of the tap changer, whether the transformer is short-circuited between turns, and whether the transformer can be operated in parallel. The readings of the traditional ratio bridge are not intuitive, and conversion is required, and only phase-by-phase measurements can be made. The ratio tester overcomes the shortcomings of the traditional ratio bridge test, is easy and intuitive to operate, uses a three-phase precision inverter power supply, and has fast testing and high accuracy.

II. Functional features

1. The instrument uses a three-phase precision inverter power supply instead of a single-phase mains power supply as the measurement voltage, eliminating the harmonic influence of the mains voltage during measurement, and the measurement is more accurate. When the working power supply is a generator, there is no effect.

2. The three-phase output voltage is used to increase the test speed, and the phase angle can be measured, and the transformer with a neutral point can also be measured, and the transformer wiring group 0-11 can be automatically identified.

3. It is applicable to a wide range of transformers, especially for the measurement of Z-type transformers, rectifier transformers, grounding transformers, electric furnace transformers, phase-shift transformers, etc., with the most comprehensive measurement parameters.

4. It adopts a self-made precision three-phase inverter power supply, with high and low voltage reverse connection protection, transformer inter-turn short-circuit protection, tap switch incomplete separation protection, output full short-circuit protection, and increases the stability of the instrument.

5. After entering the rated parameters, the transformer ratio, error value and tap switch position can be automatically measured, especially for asymmetric tap switches, the exact position of the transformer tap switch can also be accurately measured, and up to 99 tap switches can be measured.

6. Seven-inch high-brightness touch color LCD, clear display under strong light, full touch screen operation, free switching between Chinese and English

7. The instrument can be connected to an external printer to print measurement data, which is convenient for paperless office. (Optional) It adopts a cold and heat-resistant, sealed and waterproof, anti-fall and shock-proof multifunctional engineering plastic box for field testing.

1. Test range: 0.9~10000

2. Measurement accuracy: ±0.1%+2 digits (0.9-500)

±0.2%+2 digits (501-2000)

±0.5%+2 digits (2001-10000)

3. Angle accuracy: ±0.2°

4. Output voltage: automatically adjusted according to load

5. Resolution: minimum 0.0001 angle -- 0.01°

6. Working power supply: battery power

7. Ambient temperature: -10℃~40℃

8. Relative humidity: ≤85%, no condensation

9. Dimensions: host 252*160*65 (mm) outer box: 425*335*210 (mm)

10. Weight: host 2KG Outer box: 8KG

11. Test line length: 13 meters as standard, length can be customized

Dual Canopy Mechanical Electrical Engineering Co., Ltd. stands as a preeminent high-tech enterprise at the forefront of electrical system automation and precision testing.

Our commitment to innovation drives the development of cutting-edge devices, including advanced intelligent control systems and state-of-the-art automated monitoring solutions,

which are meticulously engineered to significantly enhance the stability, efficiency, and overall performance of modern power systems. Moreover, our high-precision testers and sophisticated fault diagnosis instruments have earned the trust of power companies globally, thanks to their unparalleled accuracy in data acquisition and their ability to deliver highly efficient, insightful analysis.

Our comprehensive product portfolio encompasses a diverse range of essential electrical equipment. This includes Oil-immersed and Dry-type Transformers, which are designed to meet the varying needs of different applications; the Transformer Oil Test Series, which ensures the quality and reliability of transformer oil; the Transformer Test Series, which provides comprehensive testing solutions for transformers; and the High Voltage Tester Series, which is essential for ensuring safety and performance in high-voltage environments. These products are specifically tailored to serve a broad spectrum of industries, such as power systems, electrified railways, shipbuilding, telecommunications, municipal management, and other large-scale enterprises, where reliability and precision are of utmost importance.

Every product manufactured by Dual Canopy adheres to stringent international CE standards and Chinese national standards, guaranteeing the highest levels of quality, safety, and reliability. Our global export network has enabled us to reach customers across the world, and we are proud to have received widespread recognition and high praise from major clients.

For excellence in electrical innovation and reliability, choose Dual Canopy.