Power measurements
The following power calculations are available when the voltage and the current cards are available.
Table. 5.2.3 - 40. Three-phase power calculations.
Name
Unit
Range
Step
Description
3PH Apparent power (S)
kVA
-1x10
6
…1x10
6
0.01
The total three-phase apparent power in kilo-volt-ampere
3PH Active power (P)
kW
-1x10
6
…1x10
6
0.01
The total three-phase active power in kilowatts
3PH Reactive power (Q)
kVar
-1x10
6
…1x10
6
0.01
The total three-phase reactive power in kilovars
3PH Apparent power (S MVA)
MVA
-1x10
5
…1x10
5
0.01
The total three-phase apparent power in megawatts
3PH Active power (P MW)
MW
-1x10
5
…1x10
5
0.01
The total three-phase active power in mewatts
3PH Reactive power (QMVar)
MVar -1x10
5
…1x10
5
0.01
The total three-phase active power in megavars
3PH Tan(phi)
-
-1x10
6
…1x10
6
0.01
The direction of three-phase active power
3PH Cos(phi)
-
-1x10
6
…1x10
6
0.01
The direction of three-phase reactive power
3PH Power factor
-
-1x10
6
…1x10
6
0.0001 The three-phase power factor
Table. 5.2.3 - 41. Single-phase power calculations (L1...L3).
Name
Unit
Range
Step
Description
Lx Apparent power (S)
kVA
-1x10
6
…1x10
6
0.01
The apparent power of Phase Lx in kilo-volt-amperes
Lx Active power (P)
kW
-1x10
6
…1x10
6
0.01
The active power of Phase Lx in kilowatts
Lx Reactive power (Q)
kVar
-1x10
6
…1x10
6
0.01
The reactive power of Phase Lx kilovars
Lx Tan(phi)
-
-1x10
6
…1x10
6
0.01
The direction of Phase Lx's active power
Lx Cos(phi)
-
-1x10
6
…1x10
6
0.01
The direction of Phase Lx's reactive power
Lx Power factor
-
-1x10
6
…1x10
6
0.0001
The power factor of Phase Lx
Energy measurements
The following energy calculations are available when the voltage and the current cards are available.
Please note that the unit prefix is determined by the user's selection between 'kilo' and 'mega' in "Three-
phase energy prefix ("E 3ph M or k")" under the general "Power and energy measurement settings".
Table. 5.2.3 - 42. Three-phase energy calculations.
Name
Range
Step
Description
Exported Active Energy (P) (kWh
or MWh)
-999 999 995
904.00…999 999 995
904.00
0.01
The total amount of exported active energy.
Imported Active Energy (P) (kWh or
MWh)
-999 999 995
904.00…999 999 995
904.00
0.01
The total amount of imported active energy.
Active Energy (P) Export/Import
balance (kWh or MWh)
-999 999 995
904.00…999 999 995
904.00
0.01
The sum of imported and exported active energy.
Genera
Generattor Commander
or Commander
Instruction manual
Version: 2.07
46
© Arcteq Relays Ltd
IM00001
Summary of Contents for Generator Commander
Page 1: ...Generator Commander Instruction manual...
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