Technical Revision History; Three-Phase Undervoltage Protection Phptuv; Identification; Function Block - ABB RELION 611 Series Technical Manual

Section 4
Protection functions
4.5.1.11
4.5.2
4.5.2.1
4.5.2.2
4.5.2.3
4.5.2.4
260

Technical revision history

Table 275: PHPTOV Technical revision history
Technical revision
B
C
D

Three-phase undervoltage protection PHPTUV

Identification

Function description
Three-phase undervoltage protection

Function block

GUID-B4A78A17-67CA-497C-B2F1-BC4F1DA415B6 V2 EN
Figure 123: Function block

Functionality

The three-phase undervoltage protection function PHPTUV is used to disconnect
from the network devices, for example electric motors, which are damaged when
subjected to service under low voltage conditions. PHPTUV includes a settable value
for the detection of undervoltage either in a single phase, two phases or three phases.
The function contains a blocking functionality. It is possible to block function outputs,
timer or the function itself, if desired.

Operation principle

The function can be enabled and disabled with the Operation setting. The
corresponding parameter values are "On" and "Off".
The operation of PHPTUV can be described using a module diagram. All the modules
in the diagram are explained in the next sections.
Change
Step value changed from 0.05 to 0.01 for the
multiplier setting.
Curve Sat relative max range widened from 3.0 to
10.0 % and default value changed from 2.0 to
0.0 %.
Type of time reset .
Added setting
IEC 61850 IEC 60617
identification identification
PHPTUV 3U<
1MRS757454 D
Time
ANSI/IEEE C37.2
device number
27
611 series
Technical Manual