Damped alternating current (DAC) test systems are lightweight, compact, and versatile systems for testing and diagnosis of medium voltage distribution and high voltage transmission class cables. DAC testing is used as an asset management tool to help assess the cable insulation condition of newly installed, repaired, or service-aged cables. The systems allow for voltage withstand tests, partial discharge (PD) measurement, with source localization along the length of cable, as well as the estimation of loss factor (or tan delta).
DAC System Models:
DAC M30 / M40 / M60
The DAC M30, M40, and M60 advanced damped AC (DAC) cable test systems are integrated with partial discharge (PD) diagnostic capabilities up to 30 kVpeak, 40 kVpeak, and 60 kVpeak, respectively. The systems also assess cable ageing status based on dissipation factor (tan delta) estimation. PD mapping allows users to identify areas of PD along the length of the cable. Portable on-site DAC voltage tests in combination with non-destructive PD and tan delta measurements is unique and fundamental for reliable service of newly installed, repaired, or service-aged cable systems.
DAC H200
The Damped Alternating Current (DAC) high voltage H200 is an exceptionally compact, lightweight, and versatile system for testing and diagnosis of high voltage transmission cables up to 192 kVpeak (136 kVrms). It is programmable and features automatic withstand voltage test, partial discharge (PD) measurement and analysis as well as PD localization. Control and analysis are user-friendly using the intuitive software.
DAC H300
The Damped Alternating Current (DAC) high voltage H300 is an exceptionally compact, lightweight, and versatile system for testing and diagnosis of high voltage transmission cables up to 288 kVpeak (204 kVrms). It is programmable and features automatic withstand voltage test, partial discharge (PD) measurement and analysis as well as PD localization. Control and analysis are user-friendly using the intuitive software.