Page 39 - kV-kA ABB_Broschure_Power_Semiconductors_2021_EN

BYPASS THYRISTOR
39
Bypass thyristor
The bypass thyristor is a new semiconductor device that offers three modes of operation:
• Normal operation: Device is blocked permanently.
• Protection mode: Device is irreversibly shorted by
a surge current event (ITSM /I2t) triggered through
the gate.
• SCFM mode: Continuous stable long-term short
circuit mode.
A typical application is short-circuiting faulty cells in a multilevel converter topology (MMC). The thyristor housing will not rupture when passing currents up to, or exceeding, 363 kA or 217 MA2s. After a fault, the device operates as a stable short circuit for more than a year.
VDCN (V)
ITSM (kA)
Package (mm)
4000
290
L
Part number
5STP 10L8500
Drawings see page 42.
VDRM (V)
8400