Data object name |
Semantics |
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HzIntvTms |
Frequency adjustment pulse interval |
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HzRtg |
Rated frequency, intrinsic property of the device, which cannot be set/changed from remote |
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HzSet |
Setting of a frequency |
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HzTgtVal |
Since frequency difference Af and phase angle difference a are depending on each other (da/dt ~ Af), the phase angle difference becomes constant in case of Af= 0. Therefore, the target value of the frequency matcher is usually not 0. This data object allows to adjust manually the target value of the frequency matcher. |
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HzVaMag |
Frequency variation magnitude of the last completed event |
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HzVaTm |
Frequency variation duration of the last completed event |
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lAct |
Integral action |
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ILim |
Anti-windup integral limit. This parameter limits the absolute value of the integral term in case the loop is temporarily broken. |
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ImbA |
Deviation from the average phase current. ImbA.phsX = |/x -/ave| with /ava = (1/3) x(/A + fB + /с) |
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ImbNgA |
Current imbalance negative sequence method. ImbNgA = l2/ /1 |
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ImbNgV |
Voltage imbalance negative sequence method. ImbNgV = V2 / V'1 |
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ImbPPV |
Deviation from the average phase-to-phase voltage. ImbPPV.phsXY = I Vxy - PPVave I with PPVave = (1/3) x (Vab + Vbc + Vca) |
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ImbV |
Deviation from the average phase-to-neutral voltage. ImbV.phsX = I Vx - Vava Г with Vave = (1/3) x (Van + Vbn + Vcn) |
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ImbZroA |
Current imbalance zero sequence method. ImbZroA = lQ/ /1 |
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ImbZroV |
Voltage imbalance zero sequence method. ImbZroV = Vo / V^ |
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Imp |
Impedance |
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Ina |
Number of associations terminated due to inactivity |
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IncTrk |
Control service tracking for controllable integer |
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Ind |
General indication. It can be multiple in one LN-instance |
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Incr |
Increment of position change for open / close commands |
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Iner |
Synchronous machine moment of inertia J jkgm2] |
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IntrDetMth |
Voltage interruption detection method is the method used to detect the interruption condition based on measured or calculated voltages, currents or the status of the breaker auxiliary contacts. |
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Voltage interruption detection method |
Value |
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Voltage |
1 |
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Voltage and current |
2 |
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Voltage and normally open breaker contact |
3 |
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Voltage and normally closed breaker contact |
4 |
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Voltage and both normally open and normally closed breaker contacts |
5 |
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Normally open breaker contact |
6 |
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Normally closed breaker contacts |
7 |
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Both normally open and normally closed breaker contacts |
8 |
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InhTmm |
Time setting for restart inhibition (min). Once the Strlnh is activated, the motor should not be allowed to start until this time has elapsed. |
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In Log |
Reference to data object for archiving |
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InOv |
Input communications buffer overflow |
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InRef |
Reference to the data object what is binded to this input |
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InTrg |
Reference to trigger for archiving |
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InsAlm |
TRUE = provides an alarm after a pre-set limit is reached, for example low insulation level. Setting of the limits is a local issue and depends on the supervised media property. An appropriate action may be to refill the insulation medium. |
Data object name |
Semantics |
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InsBIk |
TRUE = block the operation of the isolated device when the level is reached where operation is not safe anymore. Setting of the limits is a local issue and depends on the supervised media property. |
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InsLevMax |
TRUE = Insulation medium level has reached predetermined maximum level, mainly used for the filling process |
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InsLevMin |
TRUE = Insulation medium level has dropped to a predetermined minimum level, mainly used for the filling process |
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InsTr |
TRUE = The insulation of the device is not guaranteed anymore. The device has to switch off from the power system, i.e. it has to be isolated by tripping the surrounding breakers. Setting of the limits is a local issue and depends on the supervised media property. |
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InSyn |
Object reference to the source of the external synchronization signal for the calculation interval |
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IntrStrVal |
The voltage interruption set point. When the measured voltage goes below this value. |
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Intln |
Integer status input used for generic I/O |
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ISCSO |
Generic integer control output. It can be multiple in one LN-instance |
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IscTrk |
Control service tracking for integer controls step position information |
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ITmms |
Integral time (ms) |
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KOFact |
Ko is zero sequence compensation factor = (Zo - Z1)/3Z1 where Zo is zero sequence impedance, and Z1 is positive sequence impedance |
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KOFactAng |
Residual compensation factor angle for Ko |
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KckPls |
The kicker pulse is a kind of frequency adjusting pulse, that may be issued if frequency difference is very small in order to achieve phase coincidence between the two voltages. With this data object, the kicker pulse function may be switched on or off. TRUE = ON; FALSE = OFF. |
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KD |
Derivative gain |
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KI |
Integral gain |
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KLd |
Filter constant К lead |
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KLg |
Filter constant К lag |
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KP |
Proportional gain |
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LCol |
Lower arc suppression coil position (Petersen coil) |
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LastStNum |
Last state number of received GOOSE telegram |
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LDC |
Line drop compensation. LDC is R&X or Z model TRUE = R&X, FALSE = Z |
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LDCR |
Line drop voltage due to line resistance component (FPF presumed) at rated current |
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LDCX |
Line drop voltage due to line reactance component (FPF presumed) at rated current |
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LDCZ |
Line drop voltage due to line total impedance (FPF presumed) at rated current |
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LEDRs |
Resets all light emitting diodes, true causes reset to occur |
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Lev |
Level of insulating medium or water level [m] |
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LevPct |
Level in the tank (as percentage of full tank level) |
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LevMod |
Internal trigger mode for disturbance recording. |
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Internal trigger mode |
Value |
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Positive or rising |
1 |
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Negative or falling |
2 |
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Both |
3 |
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Other |
4 |
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The disturbance recorder trigger mode is defined by TrgMod. LevMod exists both for the disturbance recorder as a whole (RDRE) and for each of its individual channels (RADR, RBDR). The interaction of both is determined by the individual disturbance recorder. |
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LHz |
TRUE = lower frequency, FALSE = no action |
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LimAOv |
Current limit for overflow blocking |
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LimLodA |
The data object LodA current (percent) above which automatic commands suspended |
Data object name |
Semantics |
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LimVOv |
Voltage limit for overflow blocking |
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LinAng |
Line angle is the feeder/line impedance angle |
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LinCapac |
Capacitance of the line |
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LinLenKm |
The length of the line in km |
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LivBusVai |
Live bus value: minimum value at which the bus voltage is still recognised as live |
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LivBusVal |
Voltage setting used to detect live bus, for example for auto reclosing |
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LivDeaMod |
Live dead mode of operation under which switching may be carried out |
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Live dead mode |
Value |
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Dead line, dead bus |
1 |
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Live line, dead bus |
2 |
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Dead line, live bus |
3 |
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Dead line, dead bus OR Live line, dead bus |
4 |
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Dead line, dead bus OR Dead line, live bus |
5 |
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Live line, dead bus OR Dead line, live bus |
6 |
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Dead line, dead bus OR Live line, dead bus OR Dead line, live bus |
7 |
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LivLinVal |
Live line value: minimum value at which the line voltage is still recognised as live |
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LoBatVal |
Low battery alarm value |
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LocKey |
This changeover is always done locally with a physical key or toggle switch. The physical key or toggle switch may have a set of contacts from which the position can be read. This data object indicates the switchover between local and remote operation; local = TRUE, remote = FALSE. |
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Loc |
This data object describes the control behaviour of the related LN. (FALSE = not allowed at this level, TRUE = allowed at this level). (See also Annex B). |
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LocbTrk |
Access service tracking for Log control block |
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LoColPos |
Low position of a suppression coil |
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LoCtIV |
Lowest control voltage since last reset |
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LocSta |
Control authority at station level (see Loc). Switch between station and higher level. TRUE = command allowed at station level, but not from remote, FALSE = command is allowed from remote. |
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LodA |
Load side current of transformer |
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LodFact |
Load factor (apparent power / rated power) of a transformer |
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LodRsvAlm |
Load reserve to alarm |
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LodRsvTr |
Load reserve to trip |
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LogRef |
Reference to Log |
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LogTrg |
TriggerLogging by operator |
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LokRotTms |
Locked rotor time (s). This time is the permissible locked rotor time during start-up. |
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LoLim |
Low limit reached (input signal equal to or below limit) |
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LoLimSpt |
Minimum limit setpoint |
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LoSet |
Low operate value, percentage of the nominal current |
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LosFact |
Loss factor (tan delta) |
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LosOil |
TRUE = indicates that a loss of oil has been detected. |
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LosVac |
TRUE = indicates when vacuum drops below a predetermined level |
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LoTapPos |
Lowest tap position since last reset |
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LoTrgLev |
Low (negative) trigger level |
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LoVRtg |
Rated voltage (low voltage level) |
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LTCBIk |
TRUE = block (inhibit) automatic control of LTC blocked (inhibited) |
Data object name |
Semantics |
LTCDragRs |
TRUE = reset LTC drag hands (high and low positions to present position) |
LV |
TRUE = lower voltage, FALSE = no action |
MaxAmps |
Maximum current in a defined evaluation interval (period) |
MaxAPhs |
Maximum magnitude of current of the 3 phases. Max(la,lb,lc) |
MaxATrs |
Maximum current transient value |
MaxAVa |
Maximum unbalance deviation value |
MaxCyc |
Maximum number of allowed cycles for any cyclic process, e g. used for the autorecloser |
MaxDITmms |
Operation instant difference (between intended and performed operation) |
MaxEna |
Monitoring of current exceeding a set value is enabled (TRUE) in order to detect a fault condition during power swing in the system |
MaxFwdAng |
Maximum phase angle in forward direction |
MaxHzTmms |
Maximum frequency adjustment pulse time. The value is used to define a maximum pulse length, limiting the calculated variable pulse time. |
MaxImbA |
Maximum deviation from the average current. Max(ldev_a,ldev_b,ldev_c) |
MaxImbPPV |
Maximum deviation from the average phase-to-phase voltage. MaxImbPPV = Max(PPVdev_a,PPVdev_b,PPVdev_c) |
MaxImbV |
Maximum deviation from the average phase-to-neutral voltage. MaxImbV = Max(Vdev_a,Vdev_b,Vdev_c) |
MaxNumRcd |
Maximum number of records that can be recorded |
MaxNumStr |
Setting for the maximum number of starts. This data object is also used for the permissible number of cold starts. For example, the motor manufacturer may state that three starts at the maximum are allowed within 1 h. These parameters are intended for this. So MaxNumStr is set to 3 and MaxStrTmm is set to 60 (min). |
MaxOpCap |
This data object shall provide the information of the operation capability available when the switch mechanism is fully charged. The maximum operating capability gives the information about the max number of close-open cycles to be performed. For example when one Close-Open-cycle can be performed then MaxOpCap equals 1. |
MaxOpTmm |
Maximum operation time in minutes |
MaxOpTmms |
The data object maximum operating time in ms for the LN is used for co-ordinating action of the related function |
MaxPFPhs |
Maximum magnitude of power factor of the 3 phases. Max(PFa, PFb, PFc) |
MaxPhVPhs |
Maximum magnitude of phase to reference voltage of the 3 phases. Max(PhVa, PhVb, PhVc) |
MaxPPVPhs |
Maximum magnitude of phase to phase voltage of the 3 phases. Max(PPVa, PPVb, PPVc) |
MaxPwr |
Maximum permissible permanent power (overload) [W] |
MaxRvAng |
Maximum phase angle in reverse direction |
MaxStrTmm |
The time period in which the maximum number of starts is allowed |
MaxTmms |
Maximum time after fault detection during which autoreclosing is permitted |
MaxVA |
Maximum apparent power in a defined evaluation interval (period) |
MaxVAPhs |
Maximum magnitude of apparent power of the 3 phases. Max(VAa, VAb, VAc) |
MaxVAr |
Maximum reactive power in a defined evaluation interval (period) |
MaxVArPhs |
Maximum magnitude of reactive power of the 3 phases. Max(VAra, VArb, VArc) |
MaxVolts |
Maximum voltage in a defined evaluation interval (period) |
MaxVSyn |
Maximum voltage for live synchronisation |
MaxVTmms |
Maximum voltage adjustment pulse time: the value is used to define a maximum pulse length, limiting the calculated variable pulse time |