61970-301©1EC:2003 -7- 2.6.11 SteamTurbine........................ .121 2.6.12 Subcritical.… 122 2.6.13 Supercritical.......... 123 2.7 LoadModel...... 124 2.7.1 AreaLoadCurve. .125 2.7.2 9 AreaLossCurve.......... .126 2.7.3 CustomerMeter............ .127 2.7.4 DayType.................. 128 2.7.5 EquivalentLoad 128 2.7.6 InductionMotorLoad. 129 2.7.7 LoadArea .130 2.7.8 LoadDemandModel..... 131 2.7.9 NonConformLoadSchedule. 132 2.7.10 PowerCutZone.............. 133 2.7.11Seas0n. .133 2.7.12 StationSupply........... 134 2.8 Meas. 135 2.8.1 Control .137 2.8.2 ControlType 138 2.8.3 Limit.… 138 2.8.4 LimitSet .139 2.8.5 Measurement. 139 2.8.6 MeasurementType. .141 2.8.7 MeasurementValue............. .142 2.8.8 MeasurementValueQuality .142 2.8.9 MeasurementValueSource .143 2.8.10 Quality61850 .144 2.8.11 ValueAliasSet.............. .145 2.8.12 ValueToAlias............. .145 2.9 Outage… ,145 2.9.1 ClearanceTag… .146 2.9.2 OutageSchedule. .147 2.9.3 SwitchingOperation... 148 2.10 Protection. .148 2.10.1 CurrentRelay................ …149 2.10.2 ProtectionEquipment. 150 2.10.3 RecloseSequence....... .151 2.10.4 SynchrocheckRelay. .151 2.11 Topold0gy… ..152 2.11.1 ConnectivityNode.... .154 2.11.2 Topologicallsland.......... .154 2.11.3 TopologicalNode..... 154 2.12 Wires.… 155 2.12.1 ACLineSegment... 161 2.12.2 Breaker. 163 2.12.3 BusbarSection. 16461970-301  IEC:2003 – 7 – 2.6.11 SteamTurbine.............................................................................................................121 2.6.12 Subcritical................................................................................................................... 122 2.6.13 Supercritical............................................................................................................... 123 2.7 LoadModel................................................................................................................................. 124 2.7.1 AreaLoadCurve......................................................................................................... 125 2.7.2 AreaLossCurve..........................................................................................................126 2.7.3 CustomerMeter..........................................................................................................127 2.7.4 DayType...................................................................................................................... 128 2.7.5 EquivalentLoad..........................................................................................................128 2.7.6 InductionMotorLoad................................................................................................. 129 2.7.7 LoadArea.....................................................................................................................130 2.7.8 LoadDemandModel.................................................................................................. 131 2.7.9 NonConformLoadSchedule....................................................................................132 2.7.10 PowerCutZone...........................................................................................................133 2.7.11 Season......................................................................................................................... 133 2.7.12 StationSupply.............................................................................................................134 2.8 Meas............................................................................................................................................135 2.8.1 Control..........................................................................................................................137 2.8.2 ControlType................................................................................................................ 138 2.8.3 Limit.............................................................................................................................. 138 2.8.4 LimitSet........................................................................................................................139 2.8.5 Measurement............................................................................................................. 139 2.8.6 MeasurementType....................................................................................................141 2.8.7 MeasurementValue.................................................................................................. 142 2.8.8 MeasurementValueQuality.....................................................................................142 2.8.9 MeasurementValueSource.....................................................................................143 2.8.10 Quality61850.............................................................................................................. 144 2.8.11 ValueAliasSet.............................................................................................................145 2.8.12 ValueToAlias.............................................................................................................. 145 2.9 Outage........................................................................................................................................ 145 2.9.1 ClearanceTag.............................................................................................................146 2.9.2 OutageSchedule........................................................................................................147 2.9.3 SwitchingOperation..................................................................................................148 2.10 Protection...................................................................................................................................148 2.10.1 CurrentRelay.............................................................................................................. 149 2.10.2 ProtectionEquipment............................................................................................... 150 2.10.3 RecloseSequence.....................................................................................................151 2.10.4 SynchrocheckRelay..................................................................................................151 2.11 Topology.....................................................................................................................................152 2.11.1 ConnectivityNode......................................................................................................154 2.11.2 TopologicalIsland......................................................................................................154 2.11.3 TopologicalNode....................................................................................................... 154 2.12 Wires........................................................................................................................................... 155 2.12.1 ACLineSegment........................................................................................................ 161 2.12.2 Breaker........................................................................................................................ 163 2.12.3 BusbarSection........................................................................................................... 164