LN: Voltage transient Name: QVTR
For a description of this LN, see IEC 61850-5.
|
QVTR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
MIDI C |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status Information |
||||
|
VarStr |
SPS |
Start of the event |
|
M |
|
VarEnd |
SPS |
Event finished but not reset |
T |
о |
|
Measured and metered values |
||||
|
VTrsTm |
MV |
Voltage transient duration |
|
о |
|
MaxVTrs |
MV |
Maximum voltage transient value |
|
о |
|
EvtCnt |
HST |
Event counter histogram |
|
о |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable counter operation |
|
о |
|
Settings |
||||
|
StrVal |
ASG |
Voltage transient start value |
|
О |
LN: Voltage unbalance variation Name: QVUB
For a description of this LN, see IEC 61850-5.
|
QVUB class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
VarStr |
SPS |
Start of the event |
|
M |
|
VarEnd |
SPS |
Event finished but not reset |
T |
о |
|
Measured and metered values |
||||
|
WaTm |
MV |
Voltage unbalance variation duration |
|
о |
|
MaxWa |
MV |
Maximum unbalance deviation value |
|
о |
|
EvtCnt |
HST |
Event counter histogram |
|
О |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable counter operation |
|
о |
|
Settings |
||||
|
UnbDetMth |
ENG |
Unbalance detection method |
|
м |
|
StrVal |
ASG |
Voltage unbalance start value . |
|
м |
LN: Voltage variation Name: QVVR
For a description of this LN, see IEC 61850-5. This LN refers to one phase only.
|
QVVR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
VarStr |
SPS |
Start (voltage variation event in progress) |
|
M |
|
DipStr |
SPS |
Start (voltage dip event in progress) |
|
о |
|
SwIStr |
SPS |
Start (voltage swell event in progress) |
|
о |
|
IntrStr |
SPS |
Start (voltage interruption event in progress) |
|
о |
|
VarEnd |
SPS |
Event finished but not reset |
T |
О |
|
Measured and metered values |
||||
|
Wa |
MV |
Voltage variation magnitude of the last completed event |
|
о |
|
EvtCnt |
HST |
Event counter histogram |
|
о |
|
WaTm |
MV |
Voltage variation duration of the last completed event |
|
о |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable counter operation |
|
о |
|
Settings |
||||
|
|
|
|
|
|
|
DipStrVal |
ASG |
Voltage dip set point |
|
О |
|
SwIStrVal . |
ASG |
Voltage swell set point |
|
о |
|
IntrStrVal |
ASG |
Voltage Interruption set point |
|
о |
|
IntrDetMth |
ENG |
Interruption detection method |
|
о |
Logical nodes for protection related functions LN Group: R
Modelling remarks
Table 8 gives the relation between IEC 61850-5 and this standard for protection related LNs.
Table 8 - Relation between IEC 61850-5 and IEC 61850-7-4 for protection related LN
|
Functionality |
IEEE reference |
Defined in IEC 61850-5 by LN |
Modelled in IEC 61850-7-4 by LN |
Comments |
|
Carrier or pilot line wire protection |
85 |
RCPW |
PSCH |
PSCH is used for line protection schemes instead of RCPW |
|
Directional element |
|
|
RDIR |
Directional element for modelling directed protection with Pxyz nodes |
|
Disturbance recording (acquisition) |
|
RDRE |
RDRE RADR RBDR |
Basic functionality Analogue channel Binary channel |
LN: Disturbance recorder channel analogue Name: RADR
In addition to the channel number, all attributes needed for the COMTRADE file (IEEE C37.111:1999) are provided either by data objects from the TVTR or TCTR or by attributes of the measured value (samples subscribed from TVTR or TCTR) itself or by data objects from pseudo channels (calculated values, derived values of power quality devices). The "circuit component” and “phase identification” is provided by the instance identification of the LN RADR. Channels "1” to “n" are created by "1” to “n” instances.
|
RADR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ C |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
ChTrg |
SPS |
Channel triggered |
|
M |
|
Measured and metered values |
||||
|
Access via COMTRADE only |
|
Analogue input channel |
|
M |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable operation counter |
|
о |
|
Settings |
||||
|
ChNuml |
ING |
Channel number |
|
c |
|
TrgMod |
ENG |
Trigger mode (internal trigger, external or both) |
|
0 |
|
LevMod |
ENG |
Level trigger mode |
|
о |
|
HiTrgLev |
ASG |
High (positive) trigger level ' |
|
о |
|
LoTrgLev |
ASG |
Low (negative) trigger level |
|
о |
|
PreTmms |
ING |
Pre-trigger time |
|
о |
|
PstTmms |
ING |
Post-trigger time |
|
о |
|
SrcRef |
ORG |
Reference to the IEC 61850 source data object |
|
о |
|
Condition C: multiple instances of ChNum are only allowed in case of compound data types (e.g. WYE). The order of these shall be the same as in the referenced data object. |
||||
LN: Disturbance recorder channel binary Name: RBDR
In addition to the channel number, all attributes needed for the COMTRADE file (IEEE C37.111:1999) are provided by attributes of the binary input (subscribed from another LN). The “circuit component” and “phase identification” is provided by the instance identification of the LN RBDR. Channels “1” to "n” are created by “1” to “n" instances.
|
RBDR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ C |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
ChTrg |
SPS |
Channel triggered |
|
M |
|
Access via COMTRADE only |
|
Binary input channel |
|
M |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable operation counter |
|
0 |
|
Settings |
||||
|
ChNuml |
ING |
Channel number |
|
о |
|
TrgMod |
ENG |
Trigger mode (internal trigger, external or both) |
|
о |
|
RBDR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
MIDI C |
|
LevMod |
ENG |
Level trigger mode |
|
0 |
|
PreTmms |
ING |
Pre-trigger time |
|
о |
|
PstTmms |
ING |
Post-trigger time |
|
о |
|
SrcRef |
ORG |
Reference to the IEC 61850 source data object |
|
о |
|
Condition C: multiple instances of ChNum are only allowed in case of compound data types (e.g. double indication). The order of these shall be the same as in the referenced data object. |
||||
LN: Breaker failure Name: RBRF
For a description of this LN, see IEC 61850-5.
|
RBRF class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
Str |
ACD |
Start, timer running |
|
0 |
|
OpEx |
ACT |
Breaker failure trip ("external trip") |
T |
c |
|
Opln |
ACT |
Operate, retrip ("internal trip”) |
T |
c |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable operation counter |
|
0 |
|
Settings |
||||
|
FailMod |
ENG |
Breaker failure detection mode |
|
о |
|
FailTmms |
ING |
Breaker failure time delay for bus bar trip |
|
о |
|
SPITrTmms |
ING |
Single pole retrip time delay |
|
о |
|
TPTrTmms |
ING |
Three pole retrip time delay |
|
о |
|
DetValA |
ASG |
Current detector value |
|
о |
|
ReTrMod |
ENG |
Retrip mode |
|
о |
|
Condition C: At least one of either data objects shall be used depending on the applied tripping schema. |
||||
LN: Directional element Name: RDIR
This LN shall be used to represent all directional data objects in a dedicated LN used for directional relay settings. The protection function itself is modelled by the dedicated protection LN. LN RDIR may be used with functions 21, 32 or 67 according to IEEE device function number designation.
|
RDIR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
LNName |
|
The name shall be composed of the class name, the LN-Prefix and LN- Instance-ID according to IEC 61850-7-2, Clause 22. |
|
|
|
Data objects |
||||
|
Status information |
||||
|
Dir |
ACD |
Direction |
|
M |
|
Settings |
||||
|
ChrAng |
ASG |
Characteristic angle |
|
о |
|
MinFwdAng |
ASG |
Minimum phase angle in forward direction |
|
о |
