Product Description

The application of the EHDGQ-T type high-voltage three-phase composite transformer calibration standard device and its testing methods has revolutionized the current traditional single-phase testing methods. It complies with the requirements of the current national and industry standards (test guidelines) and is easy to implement. It does not require the multiple wiring tests of the current single-phase methods, thus saving a significant amount of human and material resources, improving work efficiency, and eliminating additional errors brought by single-phase testing methods. Additionally, it can accurately perform error testing on three-phase voltage transformers with Y\YO wiring, ensuring accurate and reliable measurement. The new device's calibration method for three-phase composite transformers (metering boxes) will promote the design and manufacturing quality improvement of composite transformer products. It can more accurately reflect the characteristics of composite transformers under working conditions and more reveal potential issues during actual operation, thereby ensuring fair and just electricity measurement.

Product Features

Revamped the existing conventional single-phase testing method, in compliance with current national and industry standards (test guidelines), and is easy to implement. It eliminates the need for multiple wiring tests in the current single-phase method, saving substantial labor and materials, enhancing work efficiency, and reducing additional errors associated with single-phase testing. It also allows for accurate error testing of three-phase voltage transformers with Y\YO wiring, ensuring precise and reliable measurement. The new device's testing method for three-phase composite transformers (metering boxes) will promote the design and quality improvement of composite transformer products. It can more accurately reflect the characteristics of composite transformers in operation and reveal potential issues during actual work, thereby ensuring fair and just electricity measurement.

Technical Specifications

Three-phase control console body

Power Input: 3-phase 4-wire; Frequency: 50Hz

Control Method: Motor/Manual Control

For voltage regulators: 3-phase voltage regulator, 3×3kVA

Supply for upconverter: 3-phase voltage regulator, 3×3kVA

Three-phase Fine-Tuning Voltage Regulator 3×1kVA

High-voltage standard current transformer with shunt

Rated Current Range: 5A to 400A (for long-term operation)

Rated working voltage: 35kV, high working voltage 42kV

Standard Current Transformer Class: 0.02

Secondary Load: 5VA; Power Factor: cosφ = 1.0

Rated Current: 5A, 10A, 15A, 25A, 30A, 40A, 50A, 60A, 75A, 100A, 150A, 200A, 300A, 400A.

Complete equipment set