Title :
A 95 kV klystron power supply crowbar using light triggered SCR
Author_Institution :
Stanford Linear Accelerator Center, Menlo Park, CA, USA
Abstract :
The Stanford Linear Accelerator Center B-Factory accelerator requires the use ten 1.2 MW RF klystron operating at a voltage between 80 and 95 kV. The protection of the klystron against self-arcs is extremely important for the power supply. Although the unique design of the power supplies limits the fault current under klystron fault a light triggered thyristor crowbar is also incorporated. The unique characteristics of the light trigged thyristor make it ideal for the crowbar application. The paper discusses the design of the crowbar SCR stack and its performance. In addition, the design of a light trigged thyristor stack for phase control on the 12.5 kV line regulation will be covered.
Keywords :
arcs (electric); fault currents; klystrons; phase control; power supply circuits; thyristors; trigger circuits; 1.2 MW; 12.5 kV; 80 to 95 kV; SCR; Stanford Linear Accelerator Center; fault current; klystron power supply; light trigged thyristor; line regulation; phase control; silicon-controlled rectifier; thyristor; Capacitors; Filters; Inductors; Klystrons; Linear accelerators; Power supplies; Protection; Rectifiers; Thyristors; Wire;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433617
