Dielectric Fault Analyzer - Dfa500

The DFA500 Dielectric Fault Analyzer is a portable, battery-powered instrument for measuring non-intrusive, in-service acoustic signals and radio frequency interference (RFI) in the UHF (ultra high frequency) band produced by partial discharge and loose components. The DFA500 is designed for in service surveys to detect faults in grounded SF6 gas-insulated substations (GIS). The new DFA500 from Doble is unique for GIS applications as it is equipped with 4 acoustic channels, one UHF channel and wireless or wired synchronization with the power frequency.
The DFA500 can be applied to any grounded component associated with the SF6-filled apparatus under test. During acoustic emission measurement, the DFA500 processes the results and produces a signature which eases the identification of the fault. The instrument will produce signatures that differentiate between PD, particles, and mechanical defects.
In addition to multiple channel acoustic solution and introducing UHF sensing, the new development offers better sensitivity and accuracy. Trigger functionality by UHF, acoustic or utility frequency gives added value to flexibility for operators.

Features and Benefits
1. Condition-Based Monitoring.
2. Rapid Results.
3. Selectable Settings.
4. Simple, User-Friendly PC Interface.
5. Rugged and Reliable.
6. Battery Operated.
7. Wireless Synchronization.