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Thyristor devices for electric power systems

Journal Article · · IEEE Trans. Power Appar. Syst.; (United States)

Thyristors of higher voltage and current ratings containing new gate and self-protective features are being developed at General Electric with EPRI (Electric Power Research Institute) support. Devices include light triggered thyristors (LTT's), now at the 5 and 6KV level, and asymmetric light triggered thyristors (ALTT's) with 50% higher surge capability and 50% faster turn-off times than a regular thyristor. New features include ''controlled turn-on'', which protects thyristors from destructive di/dt during turn-on, and ''voltage breakover'' (VBO) protection, which prevents destructive avalanche current turn-on. Brief descriptions of recent devices and status reports of various EPRI supported programs are given.

Research Organization:
General Electric Co., Schenectady, NY
OSTI ID:
5224064
Journal Information:
IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. PAS-101:7; ISSN IEPSA
Country of Publication:
United States
Language:
English