Partial Discharge: DFA100 for GIS
2Pages

The DFA100, Acoustic Insulation Analyzer, is our new handheld instrument for acoustic diagnosis of GIS. It is a battery-powered instrument for detection and location of defects in the insulation of GIS systems. The DFA100 includes an acoustic emission (AE) sensor to detect acoustic signals from a range of defects such as bouncing particles, protrusions and mechanical loose parts. DFA100 is a further development of its predecessor DFA, a widely known and accepted tool for diagnosis of GIS » Portable and handheld tool for inspection and monitoring of GIS » Condition based monitoring of GIS during commissioning and in-service » Design and factory testing during manufacturing » The DFA100 can be directly applied to any earthed component that is associated with apparatus under test Benefits » Rapid results - the DFA100 is quick and easy to configure, giving results in seconds » Reliability and ease of use - the DFA100 produces high quality results with high repeatability, allowing rapid and reliable decision-making » Battery operated - the DFA100 is a stand-alone handheld instrument, which can operate up to 4 hours on one charge » Wireless synchronization - the DFA100 is utilizing a wireless synchronization module for timing PD and mechanical activity against the power system frequency » Selectable settings - the DFA100 provides recommended settings for testing both SF6 filled and oil filled equipment » Rugged and reliable - the DFA100 is an instrument with outstanding durability for field use » Simple, user-friendly PC interface - a simple interface allows the test results to be uploaded to a PC. Previous data and nameplate configurations can also be downloaded to the DFA100 Specifications » AE channels: 1 Channel (30 kHz sensor incl.) » ADC Resolution: 18 bit » Sample rate: 20 Msps » DC Power Adaptor: 90-253 VAC, 12 VDC@1.5 A » Internal Battery charger: 12 VDC » Battery Life: Up to 4 hours intermittent use » Recording length: 5000 points » Internal storage: 128 Mbytes Doble Lemke GmbH Zschoner Ring 9, 01723 Kesselsdorf / Dresden Germany www.doble-lemke.eu Doble Lemke AG Kaiserstrasse 9, 4310 Rheinfelden Switzerland www.doble-lemke.eu

DFA100 for GIS » External Storage: Compact Flash » AE Frequency Response: 1.0 kHz to 1.0 MHz +/- 1.5 dB » Display: 3.52" Color LCD » Computer interface: USB 2.0 » Weight: 2.5 lbs (1.1 kg) » Operating Temperature: - 5° to 45° C » Storage Temperature: -20° to 60° C » Dimensions: 9.5" x 3.5" x 1.4"; 240 x 90 x 40 mm The DFA100 instrument is provided with DFA100 Viewer Software. The DFA100 Viewer Software enables the user to: » Manage DFA100 results » Plot and overlay results » Upload and download data to the DFA100 instrument » Generate detailed reports Accessories » Spare battery » External...