Signals - ABB RELION Series Technical Manual

1MRS758755 A
10.3.7
REC615 and RER615
Technical Manual
interrupt fault currents. All these actions result in a sudden reduction of voltages on all
voltage phases.
Due to the nature of voltage variations, the power quality standards do not specify any
acceptance limits. There are only indicative values for, for example, voltage dips in
the European standard EN 50160. However, the power quality standards like the
international standard IEC 61000-4-30 specify that the voltage variation event is
characterized by its duration and magnitude. Furthermore, IEEE Std 1159-1995 gives
the recommended practice for monitoring the electric power quality.
Voltage variation measurement can be done to the phase-to-earth and phase-to-phase
voltages. The power quality standards do not specify whether the measurement should
be done to phase or phase-to-phase voltages. However, in some cases it is preferable
to use phase-to-earth voltages for measurement. The measurement mode is always
TRMS.

Signals

Table 693: PHQVVR Input signals
Name Type
I_A SIGNAL
I_B SIGNAL
I_C SIGNAL
U_A SIGNAL
U_B SIGNAL
U_C SIGNAL
BLOCK BOOLEAN
Table 694: PHQVVR Output signals
Name Type
OPERATE BOOLEAN
START BOOLEAN
SWELLST BOOLEAN
DIPST BOOLEAN
INTST BOOLEAN
Power quality measurement functions
Default Description
0 Phase A current magnitude
0 Phase B current magnitude
0 Phase C current magnitude
0 Phase-to-earth voltage A
0 Phase-to-earth voltage B
0 Phase-to-earth voltage C
0=False Block signal for activating the blocking mode
Description
Voltage variation detected
Voltage variation present
Voltage swell active
Voltage dip active
Voltage interruption active
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