Title :
A fusing switch for fault suppression in the SNS High Voltage Converter Modulators
Author :
Kemp, Mark A. ; Burkhart, Craig ; Nguyen, Minh N. ; Anderson, David E.
Author_Institution :
SLAC Nat. Accel. Lab., Menlo Park, CA, USA
fDate :
June 28 2009-July 2 2009
Abstract :
The High Voltage Converter Modulators (HVCMs) at the Spallation Neutron Source (SNS) have operated in excess of a combined 250,000 hours. Performance and reliability improvements to the HVCM are ongoing to increase modulator availability as accelerator system demands increase. There is a relatively large amount of energy storage in the HVCMs, ~180 kJ. This energy can be released into unsuppressed faults, cause damage, and increase the time to repair. The ¿fusing switch¿ would provide a means to isolate this stored energy from the location of the most common faults. This paper introduces this concept and its application to the HVCMs.
Keywords :
fault diagnosis; power convertors; switchgear; HVCM; SNS; accelerator system; energy storage; fault suppression; fusing switch; high voltage converter modulators; modulator availability; spallation neutron source; Capacitance; Capacitors; Circuit faults; Fault detection; Insulated gate bipolar transistors; Laboratories; Postal services; Switches; Switching converters; Voltage;
Conference_Titel :
Pulsed Power Conference, 2009. PPC '09. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-4064-1
Electronic_ISBN :
978-1-4244-4065-8
DOI :
10.1109/PPC.2009.5386228
