Sel SEL-787 - Table F.10 Compatible Logical Nodes with Extensions; Table F.11 Metering Statistics Logical Node Class Definition

F.14
SEL-787 Relay Instruction Manual Date Code 20150130
IEC 61850 Communications
Logical Node Extensions
Data Objects
Measured values
DmdA WYE Demand Currents E
PkDmdA WYE Peak Demand Currents E
SupWh MV Real energy supply
(default supply direction: energy flow towards busbar)
E
SupVArh MV Reactive energy supply
(default supply direction: energy flow towards busbar)
E
DmdWh MV Real energy demand
(default demand direction: energy flow from busbar away)
E
DmdVArh MV Reactive energy demand
(default demand direction: energy flow from busbar away)
E
a
Transient data objects—the status of data objects with this designation is momentary and must be logged or reported to provide
evidence of their momentary state
b
M: Mandatory; O: Optional; C: Conditional; E: Extension
Table F.10 Compatible Logical Nodes With Extensions
Logical Node IEC 61850 Description or Comments
Metering Statistics MSTA This LN is used for power system metering statistics.
Table F.9 Demand Metering Statistics Logical Node Class Definition (Sheet 2 of 2)
MDST Class
Attribute Name Attr. Type Explanation T
a
M/O/
C/E
b
Table F.11 Metering Statistics Logical Node Class Definition (Sheet 1 of 2)
MSTA Class
Attribute Name Attr. Type Explanation T
a
M/O/
C/E
b
LNName The name shall be composed of the class name, the LN-Prefix, and the
LN-Instance-ID according to IEC 61850-7-2.
Common Logical Node Information
LN shall inherit all Mandatory Data from Common Logical Node Class. M
Data Objects
Measured and Metered values
AvAmps MV Average Current O
AvVolts MV Average Voltage O
MaxVA MV Maximum apparent power O
MinVA MV Minimum apparent power O
MaxW MV Maximum real power O
MinW MV Minimum real power O
MaxVAr MV Maximum reactive power O
MinVAr MV Minimum reactive power O
MaxA WYE Maximum Phase Currents E
MinA WYE Minimum Phase Currents E