liona
Online PD Spot Tester
Cable testing and diagnostics with BAURliona
liona is a portable online PD spot tester for measuring and locating partial discharges in cables and switchgear during normal mains operation. liona lets you test cable systems and electrical equipment online without switching off partial discharge activities, and then generate trend analyses. All it takes is one PD spot test (duration: 5-10 minutes) to reliably assess the current condition of your system.
- Automatic PD detection during normal mains operation
- With DeCIFer® technology: PD identification based on 500 million measurement results
- Precise online PD mapping with iPD Transponder
- NEW: Online diagnostics with VDS-C
Challenges associated with online diagnostics
liona: Reliable, cost saving, easy to use
NEW: VDS-C VDS PD coupler
The new VDS PD coupler VDS-C offers an additional innovative accessory for the BAUR liona that many network operators have needed for years. This small device makes it possible to measure partial discharge on medium-voltage cables without the need to switch off cable routes.
Up until now, network operators have had two options for testing medium-voltage cables for partial discharge using BAUR equipment: offline measurement or online measurement using HFCT sensors. However, on many cables, attaching and removing the HFCT sensors requires the cables to be briefly taken out of operation. There is no need to any downtime with the VDS PD coupler as the sensors are directly attached.
![IM_product_BAUR_080223_151 IM_product_BAUR_080223_151](../../../../../XooWebKit/bin/imagecache.php/1ecfaf_cac409e5c5/d7aa_SMyr1/IM_product_BAUR_080223_151.jpg)
liona VDS-C: A true innovation!
What previously happened:
What the VDS-C is capable of:
Advantages of online diagnostics with the VDS-C
The main advantage to PD sport testing with the VDS-C is the ability to quickly check cables without the need to disconnect them from the mains. The initial check allows you to check the condition of all cables in no time at all - even for critical cable routes that would be costly to disconnect.
Online diagnostics with BAUR gives you a clear overview of your assets. Learn exactly which cables require precise diagnostics and whether they also need to be repaired or replaced.
There are no nasty surprises with the VDS-C!
Real online diagnostics
Check the condition of your cables without disconnecting the cable route from the network, even if only for a minute.
Save time
Measurements take a matter of minutes for each cable.
Save resources
Plan offline diagnostics and save resources.
More features
Measure partial discharges between the individual phases.
Sustainability
Maximum cable utilisation during its service life.
![ICON_ohne-Rahmen_flexible_blau ICON_ohne-Rahmen_flexible_blau](../../../../../XooWebKit/bin/imagecache.php/207de2_606eecb477/d654_9ApF6/ICON_ohne-Rahmen_flexible_blau.png)
Preselection
Check and preselect cables: What fits? Where is something required?
Clear results
Reports that do not require specialist knowledge to read
![ICON_ohne-Rahmen_weiter_blau ICON_ohne-Rahmen_weiter_blau](../../../../../XooWebKit/bin/imagecache.php/2092fc_996b1bb8fa/d654_9ApF6/ICON_ohne-Rahmen_weiter_blau.png)
Entry point into cable diagnostics
Fast categorisation of the cable condition
Everything the VDS PD coupler is capable of
PD testing on long cables
Measuring on VDS sockets previously only enabled the identification of partial discharges in the immediate vicinity of the switchgear, as the signals of partial discharges that are further away are suppressed. The new VDS PD coupler also make signals produced by partial discharges at a greater distance permeable. Cables several kilometres long can therefore be checked for partial discharges without having to be de-energised.
Measurement synchronisation
The sync channel allows the measurement to be synchronised to the measured phase, so that the partial discharges can be displayed according to the correct phase. In contrast to measurements taken with HCFT sensors, it is also possible to identify partial discharges between two phases on belted cables.
Spot tests on medium-voltage cables possible at last
Thanks to the easy connection without having to disconnect the cable route, it is possible to check for partial discharges within a matter of minutes. If significant partial discharges are identified, scheduling further diagnostics on the cable is recommended. As the only thing spot testing is unable to do is display the fault location.
To locate the fault, measurement engineers need to use the online measurements of the liona iPD transponder and the HCFT sensors, or the tried-and-tested offline diagnostics. The spot tests with the liona and VDS-C facilitate the scheduling of more sophisticated cable diagnostics. They also enable partial discharge testing on cables that cannot be de-energised for testing, or only as part of a complex and time-consuming process.
Here’s what our customers have to say
Suitable for all requirements
Overview of all liona sets
Check live cables quickly and easily for partial discharge with the portable online PD spot tester liona. Online PD testing helps you identify major vulnerabilities and locate any faults without any downtime.
The liona measuring device covers a wide range of applications to help you find and fix partial discharge in no time at all.
The set
Fast cable preselection followed by decisions on: What fits? Where is something required?
The set consists of:
liona
VDS-C
Advantages
- Online measurement: No need to take cables offline
- Fast preselection: 2-3 cables every minute
- Sustainability: Maximum utilisation of resources
- Measurements also possible on belted cables
liona + VDS-C
![im_product_liona_persp_vds-c_2_square im_product_liona_persp_vds-c_2_square](../../../../../XooWebKit/bin/imagecache.php/20a1a8_f593c14c55/d660_C72zH/im_product_liona_persp_vds-c_2_square.jpg)
The set
Online PD testing and mapping in next to no time.
The set consists of:
liona
HFCT sensors
iPD
Advantages
- Quick and cost-effective PD measurement and mapping
- Automatic evaluation by DeCIFer®
- Section-by-section measurementsat terminations and cross-bonding joints
- Cable length measurement to prepare for PD mapping
HFCT set
![IM_product_liona_detail_hfct-sensors-100-50-together_square IM_product_liona_detail_hfct-sensors-100-50-together_square](../../../../../XooWebKit/bin/imagecache.php/209f5f_aaf8687115/d660_C72zH/IM_product_liona_detail_hfct-sensors-100-50-together_square.jpg)
Do you already own a liona online measuring device? Not a problem! The new VDS-C VDS PD coupler is compatible with your device. Now, you only need to order the latest device in order to update your liona device to the current version.
Caution: The new VDS PD coupler cannot be used together with the iPD transponder.
![IM_product_ipd_persp_with-hfct-sensor_transparent IM_product_ipd_persp_with-hfct-sensor_transparent](../../../../../XooWebKit/bin/imagecache.php/1d50ce_b3a2f49754/d665_i23vU/IM_product_ipd_persp_with-hfct-sensor_transparent.png)
Product information
Literature
Press
November 2023
![6_Übersicht System 6_Übersicht System](../../../../../XooWebKit/bin/imagecache.php/2009df_6a3de214b7/d27a_5Qyc9/6_%C3%9Cbersicht%20System.jpg)
Spot check for partial discharges in a matter of minutes
Online partial discharge testing without interrupting operation
Distribution network operators use partial discharge testing to determine the condition of their cable routes and to detect hidden faults at an early stage. As this measurement typically requires the route to be switched off (at least for a short time), network operators usually only employ this method on part of their cables.
October 2023
![im_product_liona_persp_vds-c_1_landscape im_product_liona_persp_vds-c_1_landscape](../../../../../XooWebKit/bin/imagecache.php/20a17e_9bdf2d8e64/d27a_5Qyc9/im_product_liona_persp_vds-c_1_landscape.jpg)
VDS-C enables fast online checks on medium-voltage cables
Identifying partial discharges during operation
With its VDS-C VDS PD coupler, BAUR GmbH (Sulz/Austria) now offers an additional, innovative connection accessory for the liona online partial discharge measuring device – something that has been on the wish list of many distribution network operators for a long while. This is because the VDS-C makes it possible to identify partial discharges on medium-voltage cables or their accessories without having to switch off the cable route.
October 2020
![Online partial discharge testing: liona | BAUR GmbH Online partial discharge testing: liona | BAUR GmbH](../../../../../XooWebKit/bin/imagecache.php/187c76_3940fad962/d27a_5Qyc9/IM_product_liona_setliona-iPD_accessories_cableconnected-HFCTsensor_RGB_300dpi.jpg)
Online partial discharge testing optimised:
Additional areas of application for BAUR’s liona and iPD devices
BAUR GmbH has improved its liona and iPD devices for online partial discharge testing on medium-voltage cables. The devices allow distribution network operators to examine important cables during operation, e.g., for damage to the insulation or defective joints, without the cables having to be de-energised first.