Loss Of Phase, Undercurrent Phptuc; Identification; Function Block; Functionality - ABB RELION REX640 Technical Manual

1MRS759142 C
4.1.8
4.1.8.1
4.1.8.2
4.1.8.3
4.1.8.4
REX640
Technical Manual

Loss of phase, undercurrent PHPTUC

Identification

Function description
Loss of phase, undercurrent

Function block

GUID-B7D2342D-867A-4DAE-BA02-26CFC638B4E4 V1 EN
Figure 210: Function block

Functionality

The phase undercurrent protection function PHPTUC is used to detect an
undercurrent that is considered as a fault condition.
PHPTUC starts when the current is less than the set limit. Operation time
characteristics are according to definite time (DT).
The function contains a blocking functionality. It is possible to block function outputs
and reset the definite timer.

Analog input configuration

PHPTUC has one analog group input which must be properly configured.
Table 432: Analog inputs
Input
I3P
See the preprocessing function blocks in this document for the
possible signal sources.
Improper analog channel configuration causes a validation error if the analog
channels are not completely configured or they do not match with certain settings. For
troubleshooting, check the contents of this chapter and also the preprocessing blocks
Protection functions
IEC 61850 IEC 60617
identification identification
PHPTUC1 3I<
Description
Three-phase currents
Section 4
ANSI/IEEE C37.2
device number
37
383