![ABB relion REF615 Applications Manual Download Page 256](http://html.mh-extra.com/html/abb/relion-ref615/relion-ref615_applications-manual_2824256.webp)
3.10.3.5
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.
CMMXU1
BLOCK
HIGH_ALARM
HIGH_WARN
LOW_WARN
LOW_ALARM
GUID-58044A48-84FA-4E5E-9CEF-962184380C35 V1 EN
Figure 367:
Current measurement: Three-phase current measurement
CSMSQI1
GUID-6F4AF6B3-2DBD-4BF8-8915-4226EA3FF1F8 V1 EN
Figure 368:
Current measurement: Sequence current measurement
RESCMMXU1
BLOCK
HIGH_ALARM
HIGH_WARN
GUID-119FD230-A037-434D-8A86-375BE112675E V1 EN
Figure 369:
Current measurement: Residual current measurement
VMMXU1
BLOCK
HIGH_ALARM
HIGH_WARN
LOW_WARN
LOW_ALARM
GUID-A0A7875D-7234-4435-A673-0878D1176605 V1 EN
Figure 370:
Voltage measurement: Three-phase voltage measurement
Section 3
1MRS756378 S
REF615 standard configurations
250
REF615
Application Manual
Summary of Contents for relion REF615
Page 1: ...Relion 615 series Feeder Protection and Control REF615 Application Manual ...
Page 2: ......
Page 22: ...16 ...
Page 398: ...392 ...
Page 402: ...396 ...
Page 403: ...397 ...