F.17
Date Code 20170927 Instruction Manual SEL-751 Relay
IEC 61850 Communications
Logical Node Extensions
Table F.15 Circuit Breaker Logical Node Class Definition
XCBR Class
Data Object Name
Common
Data Class
Explanation T
a
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.
M/O/C/E
b
b
M: Mandatory; O: Optional; C: Conditional; E: Extension.
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
Status Information
Loc SPS Local control behavior M
OpCnt INS Operation counter M
OpCntEx INS Operation counter—external E
Measured and Metered Values
Pos DPC Switch position M
BlkOpn SPC Block opening M
BlkCls SPC Block closing M
Table F.16 Measurement Logical Node Class Definition
MMXU Class
Data Object Name
Common
Data Class
Explanation T
a
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.
M/O/C/E
b
b
M: Mandatory; O: Optional; C: Conditional; E: Extension.
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
TotW MV Total active power O
TotVAr MV Total reactive power O
TotVA MV Total apparent power O
TotPF MV Average power factor O
Hz MV Frequency O
PPV DEL Phase-to-phase voltages O
PhV WYE Phase-to-ground voltages O
A WYE Phase currents O
VSyn CMV Synchronism-check voltage E
Fs MV Synchronism-check frequency E