GE c60 Instruction Manual page 264

SYSTEM SETUP
Synchrophasor Rectangular Format and Integer data types are NOT supported in IEC 61850-90-5 (only
supported with IEEE C37.118) and not to set — GGIO1 that contains 16 digital status indication points —
NOTE aggregated as a 16 bit bitstring and 16 analog points. The Analog GGIO values are selectable from any
FlexAnalog value in the UR. For firmware versions 7.0 and later, the description fields for the phasors, analog,
and digital channels are populated with the 16 character name field provided within the Basic Configuration
menu. Additionally, the names of the 16 binary points are implemented as numbered descriptions — d1, d2, d3,
and so on. The number of descriptions are equal to the number of bits configured in the 16 bit digital status
word.
All bitstrings less than or equal to 32 bits in length map into a 32 bit bitstring in an IEC 61850-90-5 dataset.
The Value of the Nominal Frequency of the chassis is instantiated as a DO in LPHD of LD1. The value is named
HzNom and is an Integer Status (INS).
The UR also supports the option to apply no filtering to the synchrophasors. If no filtering is applied (PMU Class = None),
according to the standard, the ClcMth attribute is PRES. The semantic of the ClcMth used is not carried in the individual DO
and so it is recommended that one of letters of the prefix on the instantiated LNs be set to "P" or "M" accordingly in order
to differentiate. For firmware versions 7.0 and later, only FCDA data is supported. The PMU Implementation by UR Device
table earlier indicates the maximum size of each PMU data set for version 7.2 and later using FCDA data (non-structured
data).
5.5.7.4 Example: Protection synchrophasors data set with reporting rate 60 frames/second
This example gives the protection synchrophasors data set with a reporting rate of 60 frames per second (P60MMXU1). See
the figure earlier, Logical Nodes Supported in Each Logical Device. This data or list of items, as shown in the following
figure, is not available to the UR setup program but is available to be mapped by the user into a selected aggregator or
5
aggregators dataset. The logical device name (LDName) of each PMU LD is a 64 character user setting. The IEEE C37.118
STN and IDCode is to be mapped as a concatenated value in the (d)escription field of LPL CDC of the NamPlt DO in LLN0.
The mapping is implemented as STN-IDCode (text string).
From each PMU, the user selects the phasor information of interest that is mapped into the selected aggregator datset(s).
For version 7.0 and later, only FCDA data is supported.
5-138
Figure 5-66: Data set created from user-selected internal items
C60 BREAKER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS