Tripping Logic Smpptrc - ABB REG670 Applications Manual

1MRK 502 071-UEN -
Section 16
16.1
16.1.1
16.1.2
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual
Logic

Tripping logic SMPPTRC

Identification
Function description
Tripping logic
Application
All trip signals from the different protection functions shall be routed through the trip
logic. In its simplest form, the trip logic will only link the TRIP signal to a binary
output and make sure that it is long enough.
Tripping logic SMPPTRC offers three different operating modes:
• Three-phase tripping for all fault types (3ph operating mode)
• Single-phase tripping for single-phase faults and three-phase tripping for multi-
phase and evolving faults (1ph/3ph operating mode). The logic also issues a
three-phase tripping command when phase selection within the operating
protection functions is not possible, or when external conditions request three-
phase tripping.
• Single-phase tripping for single-phase faults, two-phase tripping for two-phase
faults and three-phase tripping for three-phase faults (1ph/2ph/3ph operating
mode).
To meet the different double, 1½ breaker and other multiple circuit breaker
arrangements, multiple identical SMPPTRC function blocks are provided within the
IED. In such installation, use one instance of SMPPTRC function per circuit breaker.
If the OHL is connected to the substation via more than one breaker, one SMPPTRC
function block should be used for each breaker. Assume that single-phase tripping and
autoreclosing is used on the line. Both breakers are then normally set up for 1/3-phase
tripping and 1/3-phase autoreclosing. Alternatively, the breaker chosen as master can
have single-phase tripping, while the slave breaker could have three-phase tripping
and autoreclosing. In the case of a permanent fault, only one of the breakers has to be
IEC 61850 IEC 60617
identification identification
SMPPTRC
1 -> 0
IEC15000314 V1 EN
Section 16
Logic
ANSI/IEEE C37.2
device number
94
599