The portable and powerful viola high-voltage testing and diagnostics device is used for cable and cable sheath testing of medium-voltage cables up to 35 kV and electrical equipment. Another function is insulation testing on electrical equipment.
BAUR – Viola / Viola TD
Description
Viola / Viola TD
VLF testers and diagnostics devices
New generation in the condition evaluation of cable systems
↗ Cable testing and dissipation factor measurement in one device
↗ Easy and quick test assembly
↗ Automatic testing and diagnostic sequences
↗ High performance and compact
The portable viola and viola TD devices are used for
– Cable testing
– Cable sheath testing
– Cable diagnostics (viola TD):
– Dissipation factor measurement
– Monitored Withstand Test with dissipation factor measurement
– Partial discharge measurement*
– Cable sheath testing
– Cable diagnostics (viola TD):
– Dissipation factor measurement
– Monitored Withstand Test with dissipation factor measurement
– Partial discharge measurement*
The VLF testing makes it possible to locate insulation faults in plastic- and paper insulated mass-impregnated cables in the shortest of testing times without impairing the quality of the surrounding insulating material. The dissipation factor measurement with 0.1 Hz VLF truesinus® provides differentiated information on the ageing condition of paper-insulated massimpregnated and PE/XLPE cables. In the case of PE/XLPE cables, the dissipation factor measurement is capable of differentiating between new, slightly or severely “water tree”-damaged cables. This makes it possible to prioritise the need to replace cables. The Monitored Withstand Test with dissipation factor measurement combines the cable testing and dissipation factor measurement, allowing an accurate and comprehensive assessment of the cable condition. In addition, there is minimum load on the cable due to the optimised test duration.
Functions and features
viola and viola TD
▪ Suitable for continuous operation
▪ Max. test voltage 44 kVrms / 62 kVpeak
▪ Voltage shapes: VLF truesinus®, VLF square wave voltage and DC voltage
▪ Load-independent, reproducible sinusoidal high voltage by means of VLF truesinus®testing technology
▪ Cable testing according to: IEC 60060-3, IEC 60502.2, CENELEC HD 620/621 (DIN VDE 0276- 620/621), IEEE 400-2012, IEEE 400.2-2013
▪ Cable sheath testing according to IEC 60502/IEC 60229
▪ Can be expanded in combination with PD-TaD 62:
– viola: to include the PD diagnostics function
– viola TD: to include the PD and MWT diagnostics function
▪ Max. test voltage 44 kVrms / 62 kVpeak
▪ Voltage shapes: VLF truesinus®, VLF square wave voltage and DC voltage
▪ Load-independent, reproducible sinusoidal high voltage by means of VLF truesinus®testing technology
▪ Cable testing according to: IEC 60060-3, IEC 60502.2, CENELEC HD 620/621 (DIN VDE 0276- 620/621), IEEE 400-2012, IEEE 400.2-2013
▪ Cable sheath testing according to IEC 60502/IEC 60229
▪ Can be expanded in combination with PD-TaD 62:
– viola: to include the PD diagnostics function
– viola TD: to include the PD and MWT diagnostics function
viola TD
▪ Dissipation factor measurement on medium-voltage cables up to 35 kV
▪ Monitored Withstand Test MWT according to IEEE 400.2
– MWT with dissipation factor measurement
– Full MWT with dissipation factor and PD measurement*
▪ Highly precise dissipation factor measurement with precision of 1 x 10-4
▪ Detection of leakage currents using VSE box (option)
▪ Fully automated and individually programmable diagnostic sequences incl. evaluation
▪ Monitored Withstand Test MWT according to IEEE 400.2
– MWT with dissipation factor measurement
– Full MWT with dissipation factor and PD measurement*
▪ Highly precise dissipation factor measurement with precision of 1 x 10-4
▪ Detection of leakage currents using VSE box (option)
▪ Fully automated and individually programmable diagnostic sequences incl. evaluation
Additional information
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