Transformer Field Calibration Instrument

I. Product Introduction

High-voltage electrical energy metering devices at power plants and sub-stations, as well as those for a large number of end-users, are crucial to the interests of power generation, transmission, supply, and the users themselves. To ensure accurate measurement, it is imperative to adhere toSD109 "Electric Energy Measuring Device Inspection Regulation" and DL/T448-2000 "Technical Management Regulation for Electric Energy Measuring Devices" are undergoing inspection.

Our company's new current transformer field calibration instrument is the result of extensive market research, widespread user feedback, and in-depth theoretical research. It is developed with advanced testing technology, large-scale electronic circuit design, and in accordance with national regulations. This instrument solves the issues of high workload and complex operations in the field calibration of current transformers and voltage transformers. Moreover, the product is reliable in performance and boasts powerful functions.

II. Features

The Current Transformer Field Calibration Instrument features the ability to measure current transformer errors using the iterative method, facilitating on-site verification of measurement devices.

2. Field calibration of current transformers requires no standard current transformers, current boosters, load boxes, voltage regulation control boxes, or large current conductors. It achieves the calibration of current transformers with extremely simple test wiring and operation.Extreme. .Reduced work intensity and improved work efficiency, facilitating on-site transformer calibration operations.

3. The current transformer on-site calibration instrument is equipped with a standard voltage transformer with the same transformation ratio as the measured current transformer, offering an accuracy of 0.05 class. The instrument also features a standard current transformer with the same transformation ratio, boasting a precision of 0.05. It accurately measures the transformation ratio and no-load error of the measured current transformer. Subsequently, by combining the impedance and admittance test results, the transformer error can be calculated.

4. Utilize near-power-frequency heterodyne power source testing to prevent on-site power-frequency electromagnetic radiation and series interference.

5. Wide measurement range, up to5A/5A to 31500A/5A or 5A/1A to 6300A/1A。

6. Features current transformer ratio and polarity, secondary winding resistance, and DC resistance testing capabilities.

7. Utilizing an 8-inch size1024×768 high-resolution large-screen TFT color LCD touch displayEquipped with a user-friendly interface and operation design, featuring touch screen assistance for enhanced ease and speed of operation.

8. Precision software algorithms have further enhanced the accuracy of data measurement.

9. Features intelligent judgment of external wiring conditions, alerting to wiring errors, ratio errors, polarity errors, etc.

10. Automatically rounds test data and determines if it exceeds the tolerance. Data that exceeds the tolerance is displayed in orange, and an alert appears in the bottom right corner of the window, clearly indicating the deviation for transformer data characteristics.

11. China's first innovative product capable of testing the ratio and polarity functions of voltage transformers simultaneously.

12. The instrument can perform blind testing on transformer ratio, and after testing, it provides calculated transformer ratio values.

13. Directly issues on-site calibration conclusions, indicating pass or fail, with an integrated printer that prints data directly.

14. The large-scale storage can hold up to 1,000 field test data entries.

Connect to the computer to print data certificates via RS232 or USB interface.

16. The engineering plastic mold box is designed with shock and pressure resistance to ensure the safety of both the on-site operators and the equipment.

17. The instrument is available in standard and battery-powered versions. For the battery-powered model, the internal battery takes approximately 12-24 hours to charge, after which it can operate continuously for over 12 hours.

This equipment has been patented, Patent No.: 201530141069.1.