Summary
Vacuum circuit breakers are well established in the distribution voltage level due to their various advantages, e.g. frequent switching operations, low life-cycle-costs, excellent thermal arc quenching capabilities, and nearly maintenance free operation. In order to establish this technology at higher voltages, the dielectric withstand capability must be increased. E.g. non-sustained disruptive discharges, while interrupting capacitive currents, have to be identified and reduced. In this work, a special test setup to investigate this aspect on commercially available high-voltage vacuum interrupters for test voltages up to 200 kV is presented and its features are discussed. In particular, requirements in terms of measuring and analysis of low frequent pre-breakdown currents immediately after arc extinction will be presented. Furthermore, a simple procedure for an additional simultaneous measurement of high frequent pre-breakdown currents is pointed out.
Additional informations
| Publication type | ISH Collection |
|---|---|
| Reference | ISH2015_215 |
| Publication year | 2015 |
| Publisher | ISH |
| File size | 124 KB |
| Price for non member | Free |
| Price for member | Free |
Authors
Rybakov Alexey, Borsi Hossein, Kajino
