Development of large-capacity VBO-free light-triggered thyristors and their application to SVC valves

Author

Itoh, Katsuro ; Tsunoda, Yoshiaki ; Akabane, Katsumi ; Kashiwazaki, Hiroshi ; Horiuchi, Susumu

Author_Institution

Toshiba Corp., Tokyo, Japan

fYear

1991

fDate

24-27 Jun 1991

Firstpage

453

Lastpage

459

Abstract

Six kV 2500 A and 1500 A light-triggered thyristors with an overvoltage protection function or VBO-free LTT thyristors were developed. Using these thyristors, 100 MVA-class SVC valves were manufactured and subjected to one year of field testing. Features, structures and electrical characteristics of the developed large-capacity VBO-free LTTs are described. Specifications and construction of the SVC valve used in the field verification tests are introduced and field test results are given

Keywords

static VAr compensators; thyristor applications; 1500 A; 2500 A; 6 kV; SVC valves; VBO-free light-triggered thyristors; overvoltage protection; static VAr compensators; Circuits; Electric variables; HVDC transmission; Power system reliability; Protection; Static VAr compensators; Testing; Thyristors; Valves; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-0090-4

Type

conf

DOI

10.1109/PESC.1991.162714

Filename

162714

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1858820