GE Multilin
B90 Low Impedance Bus Differential System
C-3
APPENDIX C
C.2 SERVER DATA ORGANIZATION
C
C.2.6 MMXN: ANALOG MEASURED VALUES
A limited number of measured analog values are available through the MMXN logical nodes.
Each MMXN logical node provides data from a B90 current and voltage terminal. There is one MMXN available for each
configurable terminal (programmed in the
SETTINGS
SYSTEM SETUP
AC INPUTS
settings menu). MMXN1 provides
data from B90 terminal 1, and MMXN2 provides data from B90 terminal 2.
MMXNx logical nodes provide the following data for each terminal:
•
MMXN1.MX.Amp: terminal current magnitude and angle
•
MMXN1.MX.Vol: terminal voltage magnitude and angle
C.2.7 PROTECTION AND OTHER LOGICAL NODES
The following list describes the protection elements for all UR-series relays. The B90 relay will contain a subset of protec-
tion elements from this list.
•
PDIF: bus differential, transformer instantaneous differential, transformer percent differential, current differential
•
PDIS: phase distance, ground distance
•
PIOC: phase instantaneous overcurrent, neutral instantaneous overcurrent, ground instantaneous overcurrent, nega-
tive-sequence instantaneous overcurrent.
•
PTOC: phase time overcurrent, neutral time overcurrent, ground time overcurrent, negative-sequence time overcur-
rent, neutral directional overcurrent, negative-sequence directional overcurrent
•
PTUV: phase undervoltage, auxiliary undervoltage, third harmonic neutral undervoltage
•
PTOV: phase overvoltage, neutral overvoltage, auxiliary overvoltage, negative sequence overvoltage
•
RBRF: breaker failure
•
RREC: autoreclosure
•
RPSB: power swing detection
•
RFLO: fault locator
•
XCBR: breaker control
•
XSWI: circuit switch
•
CSWI: switch controller
The protection elements listed above contain
start
(pickup) and
operate
flags. For example, the start flag for PIOC1 is
PIOC1.ST.Str.general. The operate flag for PIOC1 is PIOC1.ST.Op.general. For the B90 protection elements, these flags
take their values from the pickup and operate FlexLogic operands for the corresponding element.
Some protection elements listed above contain directional start values. For example, the directional start value for PDIS1 is
PDIS1.ST.Str.dirGeneral. This value is built from the directional FlexLogic operands for the element.
The RFLO logical node contains the measurement of the distance to fault calculation in kilometers. This value originates in
the fault locator function.
The XCBR logical node is directly associated with the breaker control feature.
•
XCBR1.ST.Loc: This is the state of the XCBR1 local/remote switch. A setting is provided to assign a FlexLogic operand
to determine the state. When local mode is true, IEC 61850 client commands will be rejected.
•
XCBR1.ST.Opcnt: This is an operation counter as defined in IEC 61850. Command settings are provided to allow the
counter to be cleared.
•
XCBR1.ST.Pos: This is the position of the breaker. The breaker control FlexLogic operands are used to determine this
state.
–
Intermediate state (00) is indicated when the
BREAKER 1 OPEN
and
BREAKER 1 CLOSED
operands are both On.
–
Off state (01) is indicated when the
BREAKER 1 OPEN
operand is On.
–
On state (10) is indicated when the
BREAKER 1 CLOSED
operand is On.
Summary of Contents for B90 UR Series
Page 316: ...A 4 B90 Low Impedance Bus Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 406: ...B 90 B90 Low Impedance Bus Differential System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Page 436: ...C 30 B90 Low Impedance Bus Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 446: ...D 10 B90 Low Impedance Bus Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
