Product Introduction

The Automatic Transformer Ratio and Group Test Instrument is specifically designed for power systems, transformer manufacturers, and railway electrical systems, offering precise testing for transformer ratios, groups, polarities, and angles. It can automatically generate a stable amplitude and constant phase three-phase, two-phase, or single-phase standard power supply, widely applicable to the testing of various transformer types, including Z-wound transformers, rectifier transformers, and special transformers such as Scott, inverse Scott, and balanced transformers.

The tester features a large LCD screen and a full Chinese menu, offering simple operation, comprehensive functions, and supports Chinese character printing output, greatly enhancing user convenience.

II. Product Features

The Automatic Generation of Standard Power Sources: The tester can automatically generate stable amplitude and constant phase three-phase, two-phase, or single-phase standard power sources, ensuring the accuracy of test results.

Direct Measurement: Free from constraints of the internal wiring of transformers, it can directly measure the voltage ratio and phase difference between the high and low voltage sides.

Efficiency in Action: Rapid testing speeds, with a single data set taking mere seconds to test, making it especially suitable for high-volume testing needs. For instance, testing a transformer with 19 tap positions takes only 10 minutes.

Protection Function: Equipped with overcurrent protection internally to ensure safety during the testing process.

High Precision: Test results are unaffected by fluctuations in the frequency and amplitude of the power supply, ensuring high precision.

High Versatility: Particularly suited for ratio and phase difference testing of special transformers.

True Three-Phase Measurement: Achieves true simultaneous three-phase measurement, enhancing testing efficiency.

Data Interface and Storage: Equipped with an RS232 interface for easy connection to computers and automated processing of test data; also features data storage capabilities, enabling the saving of extensive test data.

III. Technical Specifications

Range: 0.9 to 5,000

Accuracy: ±(0.2% of reading + 2 digits) (≤500); ±(0.3% of reading + 2 digits) (500 < reading ≤ 3000); ±(0.5% of reading + 2 digits) (> 3000)

Resolution: 0.9-9.9999 (0.0001); 10-99.999 (0.001); 100-999.99 (0.01); 1000-4999.9 (0.1)

Power Source: Built-in battery or external charger; charger input 100-240VAC 50/60Hz

Charging Time: Approximately 3 Hours

Instrument Weight: 4 Kg

Dimensions: 252mm (Length) × 162mm (Width) × 132mm (Height)

Operating Temperature: -10℃ to 50℃

Relative Humidity: <90%, No Condensation

The Automatic Transformer Ratio and Group Test Instrument, with its high efficiency, accuracy, safety, and ease of use, has become an indispensable important testing tool for power systems, transformer manufacturers, and railway electrical systems.

For further inquiries or purchase intentions regarding Wuhan E'dian Electric Power Test Equipment Co., Ltd.'s products, please call the manufacturer's direct sales hotline: 400-034-8088.