I. Overview

According toIn accordance with IEC standards and relevant national regulations, semi-finished and finished products during transformer manufacturing, as well as transformers newly installed or overhauled, must undergo transformer ratio testing prior to operation. The "Regulations for Power Equipment Handover and Preventive Through-Testing" also mandates regular determination of transformer ratios for operating transformers. Transformer ratio testing can check the condition of the transformer's windings and tap changers.,Determine if there are defects such as coil short circuits, connection errors, and inter-turn short circuits in transformers to ensure safe operation of the equipment.

Our company's developed and produced transformer ratio tester utilizesThe 32-bit ARM core serves as the processing core, controlling the entire unit. It achieves a single or three-phase transformer ratio measurement in one go. The instrument's operation is displayed entirely in Chinese menus, simple and intuitive. The test results are accurate and reliable, and the test results can be stored and printed. It has strong anti-interference ability and can meet the needs of ratio testing for various large, medium, and small transformers.

II. Safety Measures

1、 Always read this manual before using this instrument.

2、 The operator of the instrument should possess general knowledge of the use of electrical equipment or instruments.

3、 This instrument can be used indoors and outdoors, but should be avoided in areas exposed to rain, corrosive gases, excessive dust, high temperatures, and direct sunlight.

4、 Instruments should be avoided from severe vibration.

5、 Maintenance, care, and adjustment of the instrument should be performed by professionals.

6、 During testing, do not move the test clips or power lines.

III. Performance Features and Technical Specifications

1. Main technical specifications and usage conditions are listed in the table below.

2. Performance Features

1 Test speed quickly High precision and good repeatability.     

2 AvailablePT、Z-shaped transformer connection test function。

3 Automatically test ratio and group number.

4 One-time activation automatically measures the winding ratio and calculates the ratio error, tap position, tap value, polarity, and other parameters.

5 The instrument can automatically store measurement results. It features an internal non-volatile memory and a mini printer, capable of printing all data.

6 Large LCD Chinese display menu, intuitive and easy to operate.

7 The instrument is compact and lightweight, suitable for field operations.