Mmxu Deadbands - GE D90 Plus Instruction Manual
Line distance protection system
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Also See for D90 Plus:
- Instruction manual (694 pages) ,
- Communications manual (222 pages) ,
- Instruction manual (602 pages)
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IEC 61850 COMMUNICATIONS
MMXU deadbands
128
RBRF1 LN Prefix, RBRF2 LN Prefix
Range: six character ASCII string
Default: empty
These settings specify the prefixes for breaker failure logical nodes 1 and 2.
RDIR1 LN Prefix, RDIR2 LN Prefix
Range: six character ASCII string
Default: empty
These settings specify the prefixes for the directional element logical nodes 1 and 2.
RFLO1 LN Prefix
Range: six character ASCII string
Default: empty
This setting specifies the prefix for the fault locator logical node.
RPSB1 LN Prefix
Range: six character ASCII string
Default: empty
This setting specifies the prefix for the power swing detection logical node.
RREC1 LN Prefix
Range: six character ASCII string
Default: empty
This setting specifies the prefix for the autoreclose logical node.
RSYN1 LN Prefix, RSYN2 LN Prefix
Range: six character ASCII string
Default: empty
This setting specifies the prefix for the synchrocheck logical nodes 1 and 2.
XCBR1 LN Prefix through XCBR LN Prefix
Range: six character ASCII string
Default: empty
These settings specify the prefixes for the circuit breaker 1 through logical nodes.
XSWI1 LN Prefix through XSWI LN Prefix
Range: six character ASCII string
Default: empty
These settings specify the prefixes for the circuit disconnect switch 1 through logical
nodes.
ZLIN1 LN Prefix to ZLIN 4 LN Prefix
Range: six character ASCII string
Default: empty
This setting specifies the prefix for the transmission line data logical nodes 1 through 4.
The MMXU deadband settings represent the deadband values used to determine when the
update the MMXU "mag" and "cVal" values from the associated "instmag" and "instcVal"
values. The "mag" and "cVal" values are used for the IEC 61850 buffered and unbuffered
reports. These settings correspond to the associated "db" data items in the CF functional
constraint of the MMXU logical node, as per the IEC 61850 standard. According to IEC
61850-7-3, the db value "shall represent the percentage of difference between the
PLUS
D90
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: COMMUNICATIONS
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