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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Elizondo, J.M. Sceiford, M. Kincy, M. Struve, K. Wakeland, P. Wilson, M. |
| Copyright Year | 2006 |
| Description | Author affiliation: Sandia Nat. Labs., Albuquerque, NM (Elizondo, J.M.; Sceiford, M.; Kincy, M.; Struve, K.) |
| Abstract | The ZR gas switch, located between the intermediate store capacitor (I-Store) and the pulsed forming line (PFL), requires a laser pulse for its triggering. There are several routes for the beam to reach the gas switch but all of them cross over the high voltage regions. The Z laser tube crosses over the outer to inner PFL electrodes with a voltage difference no larger than 3.5 MV. The ZR gas switch was designed to be in oil, given the higher operational voltages, as a consequence the laser tube is in the oil side of the PFL interface. The ZR laser tube is required to hold in excess of 5 MV across it using high pressure $SF_{6}$ gas, the ID is 2.5" to accommodate the laser beam, mechanically should tolerate the non-axial shock loading during the water switches firing. After a couple of iterations it was decided to use Polyurethane, it provided most of the desired mechanical properties, except that it outgases ether and ether based compounds. The effect of just a few ppm of ether on $SF_{6}$ is a significant reduction on the HV hold off especially surface tracking or flashover. As a consequence the final design is such that the electric field distribution on the tube is as conservative as it was possible due to space constrains. We present the basic design, the field distribution, its relationship with available $SF_{6}$ breakdown data and the present performance. |
| Starting Page | 411 |
| Ending Page | 414 |
| File Size | 2587277 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780391896 |
| DOI | 10.1109/PPC.2005.300662 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-06-13 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Switches Zirconium Optical design Gas lasers Voltage Optical pulses Laser beams Petroleum Capacitors Electrodes |
| Content Type | Text |
| Resource Type | Article |
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