Three-Phase Current Fault Detection - ABB Remote I/O RIO600 Installation And Commissioning Manual

1MRS757488 H
Table 59: VMHAI Settings
Name Values (Range)
Operation On
Off
THD Alarm Limit 5.0...100.0
Measuring Mode Worst case
Phase A
Phase B
Phase C
6.1.6.4
RIO600
Installation and Commissioning Manual
Application
VMHAI provides a method for monitoring the power quality by means of the voltage
waveform distortion.
Signals
Table 57: VMHAI Input signals
Name Type
U_A SIGNAL
U_B SIGNAL
U_C SIGNAL
BLOCK
Table 58: VMHAI Output signals
Name
HiAThd
Settings
Unit
-
%
-

Three-phase current fault detection

Three-phase non-directional overcurrent fault detection PHPTOC
Identification
Function description
Three-phase non-directional
overcurrent fault detection
Default
-
-
-
-
Type
BOOLEAN
Step Default
- On
0.1 10%
- Worst case
IEC 61850 IEC 60617
identification identification
PHPTOC
Section 6
Commissioning
Description
Phase to earth voltage
A
Phase to earth voltage
B
Phase to earth voltage
C
Block through settings
only
Description
Alarm signal for THD
Description
Operation Off/On
Limit of THD
Specifies the
monitored phase
ANSI/IEEE C37.2
device number
3I> 51P
89