5-50
G30 Generator Protection System
GE Multilin
5.2 PRODUCT SETUP
5 SETTINGS
5
The main menu for the IEC 61850 logical node name prefixes is shown below.
PATH: SETTINGS
PRODUCT SETUP
COMMUNICATIONS
IEC 61850 PROTOCOL
IEC 61850 LOGICAL NODE NAME PREFIXES
The IEC 61850 logical node name prefix settings are used to create name prefixes to uniquely identify each logical node.
For example, the logical node “PTOC1” may have the name prefix “abc”. The full logical node name will then be
“abcMMXU1”. Valid characters for the logical node name prefixes are upper and lowercase letters, numbers, and the
underscore (_) character, and the first character in the prefix must be a letter. This conforms to the IEC 61850 standard.
Changes to the logical node prefixes will not take effect until the G30 is restarted.
The main menu for the IEC 61850 MMXU deadbands is shown below.
PATH: SETTINGS
PRODUCT SETUP
COMMUNICATIONS
IEC 61850 PROTOCOL
MMXU DEADBANDS
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 con-
straint of the MMXU logical node, as per the IEC 61850 standard. According to IEC 61850-7-3, the db value “shall repre-
sent the percentage of difference between the maximum and minimum in units of 0.001%”. Thus, it is important to know the
maximum value for each MMXU measured quantity, since this represents the 100.00% value for the deadband.
The minimum value for all quantities is 0; the maximum values are as follows:
•
phase current: 46
×
phase CT primary setting
•
neutral current: 46
×
ground CT primary setting
•
voltage: 275
×
VT ratio setting
•
power (real, reactive, and apparent): 46
×
phase CT primary setting
×
275
×
VT ratio setting
•
frequency: 90 Hz
•
power factor: 2
IEC 61850 LOGICAL
NODE NAME PREFIXES
PIOC LOGICAL NODE
NAME PREFIXES
MESSAGE
PTOC LOGICAL NODE
NAME PREFIXES
↓
MESSAGE
PTRC LOGICAL NODE
NAME PREFIXES
MMXU DEADBANDS
MMXU1 DEADBANDS
MESSAGE
MMXU2 DEADBANDS
MESSAGE
MMXU3 DEADBANDS
MESSAGE
MMXU4 DEADBANDS
Содержание G30
Страница 10: ...x G30 Generator Protection System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 G30 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 414: ...5 274 G30 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 456: ...8 2 G30 Generator Protection System GE Multilin 8 1 DIRECTIONAL PRINCIPLE 8 THEORY OF OPERATION 8 ...
Страница 470: ...9 14 G30 Generator Protection System GE Multilin 9 1 SETTING EXAMPLE 9 APPLICATION OF SETTINGS 9 ...
Страница 484: ...11 12 G30 Generator Protection System GE Multilin 11 6 DISPOSAL 11 MAINTENANCE 11 ...
Страница 512: ...A 28 G30 Generator Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 620: ...B 108 G30 Generator Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 666: ...E 10 G30 Generator Protection System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Страница 678: ...F 12 G30 Generator Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 687: ...GE Multilin G30 Generator Protection System H 7 APPENDIX H H 2 ABBREVIATIONS H Z Impedance Zone ...