Owner manual

11-9
IM MX190-01E
DARWIN Constants and Types
11
Power measurement parameters
Mnemonic Description
DAQDARWIN_POWERITEM_I0 (I1+I2+I3)/3
DAQDARWIN_POWERITEM_I1 Effective current 1
DAQDARWIN_POWERITEM_I2 Effective current 2
DAQDARWIN_POWERITEM_I3 Effective current 3
DAQDARWIN_POWERITEM_I13 (I1+I3)/2
DAQDARWIN_POWERITEM_P0 P1+P2+P3
DAQDARWIN_POWERITEM_P1 Active power 1
DAQDARWIN_POWERITEM_P2 Active power 2
DAQDARWIN_POWERITEM_P3 Active power 3
DAQDARWIN_POWERITEM_P13 P1+P3
DAQDARWIN_POWERITEM_PF0 P0/(P0
2
+VAR0
2
)
1/2
=P0/VA0
DAQDARWIN_POWERITEM_PF1 Power factor 1
DAQDARWIN_POWERITEM_PF2 Power factor 2
DAQDARWIN_POWERITEM_PF3 Power factor 3
DAQDARWIN_POWERITEM_PF13 P13/(P13
2
+VAR132)
1/2
=P13/VA13
DAQDARWIN_POWERITEM_PH0 tan
-1
(VAR0/P0)
DAQDARWIN_POWERITEM_PH1 Phase 1
DAQDARWIN_POWERITEM_PH2 Phase 2
DAQDARWIN_POWERITEM_PH3 Phase 3
DAQDARWIN_POWERITEM_PH13 tan
-1
(VAR13/P13)
DAQDARWIN_POWERITEM_V0 (V1+V2+V3)/3
DAQDARWIN_POWERITEM_V1 Effective power 1
DAQDARWIN_POWERITEM_V2 Effective power 2
DAQDARWIN_POWERITEM_V3 Effective power 3
DAQDARWIN_POWERITEM_V13 (V1+V3)/2
DAQDARWIN_POWERITEM_VA0 VA1+VA2+VA3
DAQDARWIN_POWERITEM_VA1 Apparent power 1
DAQDARWIN_POWERITEM_VA2 Apparent power 2
DAQDARWIN_POWERITEM_VA3 Apparent power 3
DAQDARWIN_POWERITEM_VA13 VA1+VA3
DAQDARWIN_POWERITEM_VAR0 VAR1+VAR2+VAR3
DAQDARWIN_POWERITEM_VAR1 Reactive power 1
DAQDARWIN_POWERITEM_VAR2 Reactive power 2
DAQDARWIN_POWERITEM_VAR3 Reactive power 3
DAQDARWIN_POWERITEM_VAR13 VAR1+VAR3
DAQDARWIN_POWERITEM_FREQ Frequency
11.2 DARWIN Constants