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Section 11 Logic

11.1 Tripping logic common 3-phase output SMPPTRC

11.1.1 Identification

Function description IEC 61850

identification

IEC 60617

identification

ANSI/IEEE C37.2

device number

Tripping logic common 3-phase output SMPPTRC

I->O

SYMBOL-K V1 EN

11.1.2 Functionality

A function block for protection tripping is provided for each circuit breaker involved

in the tripping of the fault. It provides a settable pulse prolongation to ensure a three-

phase trip pulse of sufficient length, as well as all functionality necessary for correct

co-operation with autoreclosing functions.

The trip function block also includes a settable latch functionality for breaker lock-

out.

11.1.3 Function block

SMPPTRC

BLOCK

TRIN

SETLKOUT

RSTLKOUT

TRIP

CLLKOUT

IEC09000284_1_en.vsd

IEC09000284 V1 EN

Figure 163: SMPPTRC function block

1MRK 511 287-UEN A Section 11

Logic

341

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