ABB RELION REX640 Technical Manual page 638

Protection and control

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Table of Contents

Protection functions

IFPTOC Input signals

Table 637: IFPTOC Input signals

IFPTOC Output signals

Table 638: IFPTOC Output signals

Table continues on the next page

1MRS759142 F

Three-phase currents

Residual current

Three-phase voltages

Residual voltage

External GFC start

signal, alternative for

internal GFC module.

Block signal for acti-

vating the blocking

Defines breaker close

command. This signal

is used in the switch

on to fault (SOTF)

External recorded da-

ta triggering. There

are two recorded data

banks available.

Start signal according to

estimated fault current or

touch voltage according to

the standards

Start signal according to

cross-country stage earth-

fault module

Start signal according to

Start signal according to in-

termittent earth-fault module

Operate signal according to

estimated fault current or

Technical Manual