|
RDIR class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
MinRvAng |
ASG |
Minimum phase angle in reverse direction |
|
о |
|
MaxFwdAng |
ASG |
Maximum phase angle in forward direction |
|
о |
|
MaxRvAng |
ASG |
Maximum phase angle in reverse direction |
|
О |
|
BlkValA |
ASG |
Minimum operating current |
|
О |
|
BlkVaIV |
ASG |
Minimum operating voltage |
|
о |
|
PolQty |
ENG |
Polarizing quantity |
|
О |
|
MinPPV |
ASG |
Min phase-phase voltage |
|
о |
LN: Disturbance recorder function Name: RDRE
For consistent modelling, the disturbance recorder function described as a requirement in IEC 61850-5 is decomposed into one LN class for analogue channels (RADR) and another LN class for binary channels (RBDR). The output refers to the “IEEE Standard Format for transient data exchange (COMTRADE) for power systems” (see IEEE C37.11 T.1999). Disturbance recorders are logical devices built up with one instance of LN RADR or LN RBDR per channel. Since the content of logical devices (LD) are not standardised, other LNs may be inside the LD “disturbance recorder" if applicable. All enabled channels are included in the recording, independently of the trigger mode (TrgMod).
|
RDRE 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 |
||||
|
RcdMade |
SPS |
Recording made |
|
M |
|
FltNum |
INS |
Fault number |
|
M |
|
GriFItNum |
INS |
Grid fault number |
|
о |
|
RcdStr |
SPS |
Recording started |
|
о |
|
MemUsed |
INS |
Memory used in % |
|
о |
|
Controls |
||||
|
RcdTrg |
SPC |
Trigger recorder |
|
о |
|
MemRs |
SPC |
Reset recorder memory (set the pointer of memory start to the beginning) |
T |
О |
|
MemClr |
SPC |
Clear memory (erase all content of the memory) |
T |
о |
|
OpCntRs |
INC |
Resettable operation counter |
|
о |
|
Settings |
||||
|
TrgMod |
ENG |
Trigger mode (internal trigger, external or both) |
|
о |
|
LevMod |
ENG |
Level trigger mode |
|
О |
|
PreTmms |
ING |
Pre-trigger time |
|
о |
|
PstTmms |
ING |
Post-trigger time |
|
О |
|
MemFull |
ING |
Memory full level |
|
О |
|
MaxNumRcd |
ING |
Maximum number of records |
|
О |
|
ReTrgMod |
SPG |
Retrigger mode |
|
О |
|
PerTrgTms |
ING |
Periodic trigger time in s |
|
о |
|
ExcITmms |
ING |
Exclusion time |
|
О |
|
RcdMod |
ENG |
Recorder operation mode (saturation, overwrite) |
|
О |
|
StoRte |
ING |
Storage rate, i.e. sampling rate of the disturbance recorder |
|
О |
|
RDRE class |
||||
|
Data object name |
Common data class |
Explanation |
T |
М/О/ c |
|
NOTE 1 The trigger modes (TrgMod) of RDRE, RADR and RBDR are not independent. If the trigger mode of RDRE is external, the trigger modes of RADR and RBDR may be external (no extension of trigger possibilities) or internal (extension of the external trigger mode). If the trigger mode of RDRE is internal, the trigger modes of RADR and RBDR should also be internal because otherwise, no trigger possibility is provided. NOTE 2 The source of the external trigger is a local issue. It may be a contact or a signal from another logical node. NOTE 3 The source of the internal trigger is an event detected by the supervision of the channel. It may, for analogue channels, be a limit violation or it may, for binary channels, be a status change. The trigger levels (high/low) for analogue channels for internal triggering have to be set per channel. NOTE 4 Since in case of sensors providing the analogue data as samples, the sampling rate at the source (TVTR and TCTR) as defined in IEC 61850-7-3 as data attribute, smpRate may be different from the sampling rate of the recording unit. Therefore, in line with Table 8, the sampling rate of the RDRE is a data object called StoRte meaning storage rate. |
||||
LN: Disturbance record handling Name: RDRS
For a description of this LN, see IEC 61850-5. This LN shall handle the disturbance records acquired by some local function. This LN is normally located at station level.
|
RDRS 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 |
||||
|
Controls |
||||
|
AutoUpLod |
SPC |
Automatic upload |
|
0 |
|
DltRcd |
SPC |
Delete record |
|
0 |
LN: Fault locator Name: RFLO
For a description of this LN, see IEC 61850-5. In case of a fault, the fault location is calculated in Q.
|
RFLO 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 |
||||
|
FltLoop |
ENS |
Fault loop |
|
0 |
|
Measured and metered values |
||||
|
FltZ |
CMV |
Fault impedance |
|
M |
|
FltDiskm |
MV |
Fault distance |
|
о |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable operation counter |
|
0 |
LN: Differential measurements Name: RMXU
This LN shall be used to provide locally calculated process values (phasors calculated out of samples or the samples itself) representing the local current values which are sent to the remote end and which are used for the local differential protection function (PDIF). Therefore, the LN RMXU together with LN PDIF models the core functionality of the differential protection function number 87 according to the IEEE designation (C37.2). In addition, the LNs RMXU on both sides of the line represents also the function to synchronize the samples. Therefore, also the samples sent from the local TCTR to the local PDIF are routed through the function represented by RMXU. The local RMXU is therefore the source
of synchronized samples or phasors from the local current sensor, which sends its information to the local PDIF and to all required remote PDIF nodes.
|
RMXU 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 |
||||
|
Measured and metered values |
||||
|
ALoc |
WYE |
Current (phasor) of the local current measurement |
|
c |
|
AmpLocPhsA |
SAV |
Current (sampled value) of the local current measurement (phase L1) |
|
c |
|
AmpLocPhsB |
SAV |
Current (sampled value) of the local current measurement (phase L2) |
|
c |
|
AmpLocPhsC |
SAV |
Current (sampled value) of the local current measurement (phase L3) |
|
c |
|
AmpLocRes |
SAV |
Current (sampled value) of the local current measurement (residual current) |
|
0 |
|
Condition C: Either ALoc or AmpLocPhA...AmpLocPhC shall be used. |
||||
LN: Power swing detection/blocking Name: RPSB
For a description of this LN, see IEC 61850-5. The power swing is characterised by slow periodic changing of measured impedance. Such a moderate impedance change is tolerated, but may result in tripping of the distance protection function. If the generator is out of step (pole slipping), transient changes of impedance (one per slip) are measured. After a small number of slips (MaxNumSIp) in a dedicated time window (EvTmms), the generator shall be tripped to avoid mechanical damage (out of step tripping). The actual number of slips shall be reset either by the trip or by the end of evaluation time.
|
RPSB 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 (power swing detected) |
|
C1 |
|
Op |
ACT |
Operate (out of step tripping) |
T |
C2 |
|
BlkZn |
SPS |
Blocking of PDIS zone |
|
C1 |
|
Controls |
||||
|
OpCntRs |
INC |
Resettable operation counter |
|
о |
|
Settings |
||||
|
ZeroEna |
SPG |
Zero enable |
|
о |
|
NgEna |
SPG |
Negative sequence current supervision enabled |
|
о |
|
MaxEna |
SPG |
Maximum current supervision enabled |
|
о |
|
SwgVal |
ASG |
Power swing delta |
|
О |
|
SwgRis |
ASG |
Power swing delta R |
|
О |
|
SwgReact |
ASG |
Power swing delta X |
|
О |
|
SwgTmms |
ING |
Power swing time |
|
о |
|
UnBlkTmms |
ING |
Unblocking time |
|
о |
|
MaxNumSIp |
ING |
Maximum number of pole slips until tripping (Op, out of step tripping) |
|
о |
|
EvTmms |
ING |
Evaluation time (time window, out of step tripping) |
|
о |
|
Condition C1: Mandatory if RPSB is used for “Power swing blocking”. Condition C2: Mandatory if RPSB is used for "Out of step tripping”. - |
||||
LN: Autoreclosing Name: RREC
For a description of this LN, see IEC 61850-5. The number of trigger modes (CycTrMod /) and reclose times (RecTmmsi) is equal to the maximum allowed number of reclose cycles (MaxCyc). The trigger for the activation of RREC can be the start signal of PTRC, or the report “breaker open” of the circuit breaker, or any other signals and combination of signals. If different types of protections are involved in the autoreclosing process, all relevant data objects have to be published and subscribed by the allocated protection LNs. A principal diagram of RREC is given in Annex G.
|
RREC 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 |
||||
|
TrBeh |
ENS |
Defines single or three pole tripping (mostly resulting from combination CycTrMod[n] and RecCyc) for the next trip to be subscribed by the protection |
|
о |
|
RecCyc |
INS |
Actual reclose cycle (number between 1 and UseCyc) |
|
0 |
|
OpCIs |
ACT |
Operation "close switch” issued to close the XCBR |
|
M |
|
AutoRecSt |
ENS |
Auto reclosing status |
|
M |
|
Settings |
||||
|
CycTrMod1 |
ENG |
Indicates if single pole tripping allowed or three pole tripping always requested in the cycle indicated by the DO index |
|
0 |
|
MaxCyc |
ING |
Maximum number of reclose cycles |
|
0 |
|
UseCyc |
ING |
Used actual set maximum number of reclose cycles |
|
0 |
|
MaxTmms |
ING |
Maximum time after fault detection during which autoreclosing is permitted |
|
0 |
|
Rec1Tmms1 |
ING |
Reclose time for 1-phase faults i.e. time to reclose command after trip in the cycle indicated by the DO index |
|
0 |
|
Rec13Tmms1 |
ING |
Reclose time for evolving faults |
|
0 |
|
Rec3Tmms1 |
ING |
Reclose time for З-phase faults |
|
0 |
|
RcITmms |
ING |
Reclaim time |
|
о |
|
RdyTmms |
ING |
Time between successful and ready state |
|
о |
