The three-phase line side phase voltage inputs to the relay are measured by the three-
phase voltage measurement function VMMXU1 whereas the bus side voltage input to
the relay is measured by the three-phase voltage measurement function VMMXU2.
The three-phase voltage input is connected to the X130 card in the back panel. The
sequence voltage measurement VSMSQI1 measures the sequence voltage and the
residual voltage measurement RESVMMXU1 measures the residual voltage on the
line side.
The measurements can be seen in the LHMI and they are available under the
measurement option in the menu selection. Based on the settings, function blocks can
generate low alarm or warning and high alarm or warning signals for the measured
current values.
The frequency measurement FMMXU1 of the power system and three-phase power
and energy measurement PEMMXU1 are available. Load profile record LDPRLRC1
is included in the measurements sheet. LDPRLRC1 offers the ability to observe the
loading history of the corresponding feeder.
CMMXU1(3I(1))
BLOCK
HIGH_ALARM
HIGH_WARN
LOW_WARN
LOW_ALARM
GUID-96C8ED35-DFCE-46BC-A80B-A08033C11B63 V2 EN
Figure 55:
Current measurement: Three-phase current measurement
CSMSQI1(I1,I2,I
GUID-D7B8A6D1-5D30-432A-BA7E-EFD3EEFCFF83 V2 EN
Figure 56:
Current measurement: Sequence current measurement
RESCMMXU1(Io(1)
BLOCK
HIGH_ALARM
HIGH_WARN
GUID-E920C019-B93B-42E2-8AF5-3095829351AE V2 EN
Figure 57:
Current measurement: Residual current measurement
VMMXU1
BLOCK
HIGH_ALARM
HIGH_WARN
LOW_WARN
LOW_ALARM
GUID-C56D56FD-91C3-4C7F-95D2-E11ADC494AF1 V2 EN
Figure 58:
Voltage measurement: Three-phase voltage measurement
(Terminal side)
Section 3
1MRS758272 B
REG615 standard configurations
60
REG615
Application Manual
