Product Features
1. Integrated with advanced Frequency Domain Spectroscopy (FDS) and Polarization Depolarization Current (PDC) testing technologies for comprehensive insulation diagnosis.
2. Provides a wide measurement range with 0–10 kV test voltage and 0.1 mHz–10 kHz frequency range, suitable for various high-voltage insulation applications.
Supports insulation condition evaluation, including:
-
- Average moisture content analysis
- Uneven moisture distribution detection
- Insulation oil conductivity assessment
4. Equipped with reliable temperature compensation technology to improve the accuracy and consistency of test results under different temperature conditions.
5. Uses multi-frequency measurement technology to shorten testing time and reduce transformer outage periods.
6. Enables conversion and analysis between time-domain and frequency-domain measurement results for more comprehensive insulation evaluation.
7. The software supports:
-
- FDS testing
- PDC testing
- Power factor measurement at power frequency
8. Provides excellent measurement accuracy, with the best accuracy reaching 0.02%, while maintaining strong noise immunity for testing in high-voltage (HV) and extra-high-voltage (EHV) substations.
9. Combines the XY model with multiple cellulose insulation material databases to achieve reliable evaluation of:
-
- Moisture content in solid insulation
- Insulation oil conductivity
10. The uneven moisture distribution analysis function helps detect localized moisture penetration in power equipment with voltage grading foils.
11. Applies accurate temperature correction based on the Arrhenius equation, improving the reliability of insulation condition assessment.
12. Features an intelligent testing wizard with clear connection diagrams, making field operation simple and efficient.
13. Designed with a portable and rugged structure, suitable for demanding on-site testing environments.
Software
The software features an intuitive and user-friendly interface, making operation simple and efficient. It integrates multiple functions, including project management, test connection diagrams, real-time waveform display through an oscilloscope function, and comprehensive data analysis.
After the test is completed, the software automatically processes and evaluates the measured data, providing detailed diagnostic results such as:
- Insulation system structure analysis
- Cellulose moisture content (%)
- Insulation liquid conductivity or tan δ value
- Uneven moisture distribution evaluation
- Other key insulation condition parameters
This intelligent analysis function helps users quickly understand the insulation status and improve the efficiency and accuracy of transformer condition assessment.
Applications
FDS (Frequency Domain Spectroscopy) technology has been widely used since the 1990s for insulation aging assessment and degradation detection.
Compared with traditional single-point tests, FDS provides more complete insulation condition information by analyzing frequency response characteristics and detecting the effects of moisture, temperature, surface leakage, and voltage changes.
It is mainly used for oil-paper insulated equipment, including transformers, bushings, inductors, and instrument transformers. The software can evaluate key parameters such as insulation structure, cellulose moisture content, oil conductivity, and tan δ.
With optional voltage amplifiers, FDS can also be applied to rotating machines and XLPE cables for aging evaluation and water tree detection.
