Low Voltage High Voltage Transformer Field Test Instrument

Low Voltage High Voltage Transformer Field Test Instrument Product Introduction

High-voltage power measurement devices at power plants and substation, as well as those for numerous end-users, are crucial to the interests of power generation, transmission, supply, and end-users alike. To ensure accuracy in measurement, inspections must be conducted in accordance with JJG1021-2007 "Power Transformers" and DL/T448-2000 "Technical Management Code for Power Measurement Devices."

Our company's on-site voltage transformer tester is developed using advanced testing technology, large-scale electronic circuit design, and in accordance with national regulations. It addresses the issue of high workload and complex operations during the on-site calibration of voltage transformers, while offering reliable performance and powerful functions.

Features

The voltage transformer field tester combines the functions of measuring voltage transformer errors using the low-to-high calibration method and the potential difference method, making it convenient for on-site calibration of measurement devices.

2. On-site calibration of voltage transformers can be achieved without the need for standard voltage transformers, step-up transformers, load boxes, and voltage regulation control boxes. This is made possible by using a very simple test wiring and operation, which greatly reduces the workload and enhances work efficiency, making it convenient to conduct on-site calibration of voltage transformers.

The field-test instrument for voltage transformers is equipped with a standard voltage transformer QI with the same transformation ratio as the measured voltage transformer, boasting an accuracy of 0.05 class. It accurately measures the transformation ratio and no-load error of the measured voltage transformer. Then, by combining the test results of impedance and admittance, the error of the transformer is calculated.

4. Wide measurement range, up to 6kV/100V to 220kV/V/100/V.

5. Features voltage transformer ratio, DC internal resistance, and voltage load box testing functions.

6. Features dual-wound voltage transformer testing capability with two load boxes.

7. Featuring a high-resolution 640×480 large-screen LCD display, the product boasts a user-friendly interface and operation design. With the assistance of a touchscreen, the operation becomes more convenient and swift.

8. By utilizing precise software algorithms, the accuracy of data measurement has been further enhanced.

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

10. Automatically rounds test data and determines if it exceeds the tolerance level. Data that exceeds the tolerance is displayed in reverse black, making the data characteristics of the instrument intuitive and clear.

11. Issue on-site verification conclusions directly, indicating pass or fail.

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

13. Equipped with a printer, enabling on-site printing of test data.

14. The engineering plastic mold box is designed with vibration and pressure resistance to ensure the safety of both operators and equipment during high-voltage field tests.