Andreas Ritter

Last Name

Ritter

First Name

Andreas

ORCID

0000-0001-7291-4811

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Publications 1 - 10 of 10

Five Years of Pulsed Current Testing for HVDC Switchgear
Ritter, Andreas; Bort, Lorenz; Franck, Christian (2016)
2016 IEEE International Conference on High Voltage Engineering and Application (ICHVE)
Alternative Testmethode von Trennschaltern
Ritter, Andreas; Straumann, U.; Riechert, U.; et al. (2014)
Prediction of Bus-Transfer Switching in Future HVDC Substations
Ritter, Andreas; Franck, Christian (2018)
IEEE Transactions on Power Delivery
Improved Frequency Bias Factor Sizing for Non-Interactive Control
Scherer, Marc; Iggland, Emil; Ritter, Andreas; et al. (2012)
Improving GIS Disconnectors for Future HVDC Applications
Ritter, Andreas; Straumann, Ueli; Franck, Christian (2019)
IEEE Transactions on Power Delivery
The use of standard HVac disconnectors for bus-transfer switching in future HVdc gas insulated switchgear (GIS) has been demonstrated successfully in past research through simulation and testing. Prolonged arcing times through reignitions caused by high frequency harmonics as well as the proposed extension of GIS disconnector switching cases, however, create an HVdc-specific demand for more advanced disconnector concepts capable of withstanding higher switching stresses and increased recovery voltages. A spring-loaded disconnector designed for use in HVac mixed technology switchgear (MTS) was found to shorten the time to first current zero through an accelerated increase of the arcing voltage compared to standard disconnectors. Despite its increased switching performance, the reignition characteristics of this fast-acting disconnector were found to largely follow the previously established extinction criterion, which enables further simulation of similar technologies for HVdc applications. To additionally combat the issue of contamination of HVdc GIS by electrode erosion products, a prototype disconnector was improved using permanent magnets to evoke arc rotation. Erosion tests in air have shown an effective reduction of electrode erosion for long arcing times at currents typical for disconnector switching while bus-transfer tests revealed promising enhancements of the reignition behavior.
Novel Method for Predicting Limit Performance of Bus-Transfer Switching by Disconnectors
Ritter, Andreas; Straumann, Ueli; Franck, Christian (2017)
IEEE Transactions on Power Delivery
Disconnector Switching in HVAC and Future HVDC GIS
Ritter, Andreas (2018)
Investigation of LC-Resonance Driving in Disconnector Bus-Transfer Testing
Ritter, Andreas; Straumann, Ulrich; Riechert, Uwe; et al. (2014)
Analysis Method and Implications of Utilizing a Full Bus-Transfer Setup for Testing Disconnectors
Ritter, Andreas; Straumann, Ulrich; Riechert, Uwe; et al. (2015)
Derivation of requirements for small-current switching in future HVDC substations
Ritter, Andreas; Walter, Michael M.; Straumann, Ulrich; et al. (2013)
18th International Symposium on High Voltage Engineering

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Andreas Ritter

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