ABB RELION REX640 Technical Manual page 1175

1MRS759142 F
Technical revision
D
E
5.3 Master trip TRPPTRC (ANSI 94/86)
5.3.1 Identification
Function description
Master trip
5.3.2 Function block
Figure 666: Function block
5.3.3 Functionality
The master trip function TRPPTRC is used as a trip command collector and handler
after the protection functions. The features of this function influence the trip signal
behavior of the circuit breaker. The minimum trip pulse length can be set when the
non-latched mode is selected. It is also possible to select the latched or lockout
mode for the trip signal.
5.3.4 Operation principle
The function can be enabled and disabled with the
corresponding parameter values are "On" and "Off".
The operation of TRPPTRC can be described with a module diagram. All the modules
in the diagram are explained in the next sections.
REX640
Technical Manual
When the TRPPTRC function is disabled, all trip outputs intended to go
through the function to the circuit breaker trip coil are blocked.
Change
Internal improvement.
Maximum value for
value Res changed from "1.00 x In" to "2.00 x
In".
IEC 61850 IEC 60617
identification identification
TRPPTRC Master Trip
Operation setting. The
Protection related functions
Current value and Current
ANSI/IEEE C37.2
device number
94/86
1175