ABB RED615 - Functional Diagrams for Measurement Functions

AND
B1
B2
O
AND
B1
B2
O
OR
B1
B2
O
FALSE
FALSE
CBXBCR1_AU_OPEN
CONTROL_LOCAL
CONTROL_REMOTE
GUID-B2A3DFEB-8777-40F7-AA7B-39FD2EEF3F09 V1 EN
Figure 44: External opening command for circuit breaker 1
3.3.3.5 Functional diagrams for measurement functions
The phase current inputs to the protection relay are measured by the three-phase
current measurement function CMMXU1. The current input is connected to the X120
card in the back panel. The sequence current measurement CSMSQI1 measures the
sequence current and the residual current measurement RESCMMXU1 measures the
residual current.
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.
Load profile record LDPRLRC1 is included in the measurements sheet. LDPRLRC1
offers the ability to observe the loading history of the corresponding feeder.
CMMXU1
BLOCK HIGH_ALARM
HIGH_WARN
LOW_WARN
LOW_ALARM
GUID-B3B20052-DF2B-4C6F-AFFC-DF6EBE403620 V1 EN
Figure 45: Current measurement: Three-phase current measurement
CSMSQI1
GUID-5541207C-33F0-4C30-BC61-FA4B4828ED6E V1 EN
Figure 46: Current measurement: Sequence current measurement
RESCMMXU1
BLOCK HIGH_ALARM
HIGH_WARN
GUID-8C5CCD15-3A6D-494F-B1CF-A96EC9C7D8C5 V1 EN
Figure 47: Current measurement: Residual current measurement
Section 3 1MRS758127 C
RED615 standard configurations
56 RED615
Application Manual