Functional Diagrams For Measurement Functions - ABB relion REF615 Applications Manual

Section 3
REF615 standard configurations
3.11.3.5
282
B1
CONTROL_LOCAL
B2
FALSE
B1
CONTROL_REMOTE
B2
FALSE
GUID-F71C5F96-7155-43CF-830F-96C7EF7B1DC3 V1 EN
Figure 426: External closing command for circuit breaker 1
B1
CONTROL_LOCAL
B2
FALSE
B1
CONTROL_REMOTE
B2
FALSE
GUID-F0B5A090-24EC-42AE-8655-589FABB92683 V1 EN
Figure 427: External opening command for circuit breaker 1

Functional diagrams for measurement functions

The phase current inputs to the IED 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 three-phase bus side phase voltage and single phase line side phase voltage inputs
to the IED are measured by three-phase voltage measurement VMMXU1 and
VMMXU2. The 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.
The measurements can be seen from 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 the 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.
The power quality functions CMHAI1 and VMHAI1 can be used to measure the
harmonic contents of the phase current and phase voltages. The voltage variation that
is sage and swells can be measured by the voltage variation function PHQVVR1. By
default, these power quality functions are not included in the configuration.
Depending on the application, the needed logic connections can be made by
PCM600.
AND
O
OR
B1
B2
AND
O
AND
O
B1
B2
AND
O
1MRS756378 S
O
CBXCBR1_AU_CLOSE
OR
O
CBXBCR1_AU_OPEN
Application Manual
REF615