GE b30 Instruction Manual page 438
Bus differential system
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Also See for b30:
- Instruction manual (633 pages) ,
- Communications manual (532 pages) ,
- Technical reference manual (252 pages)
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METERING
This menu displays metered values for real, reactive, and apparent power, as well as power factor. The "SRC 1" text is
replaced by the name programmed by the user for the associated source (see
).
SOURCES
When VTs are configured in wye, the B30 calculates power in each phase and three-phase power is measured as
6
When VTs are configured in delta, the B30 does not calculate power in each phase and three-phase power is measured as
where
S is the apparent power
V
, V
, V
, I
, I
, I
A
B
C
A
B
C
V
and V
are phase-to-phase voltage phasors
AB
CB
Î is the conjugate of I
6.4.3.7 Energy metering
ACTUAL VALUES METERING SOURCE SRC 1 ENERGY
ENERGY
SRC 1
6-18
SRC 1 REACTIVE PWR
φa: 0.000 var
SRC 1 REACTIVE PWR
φb: 0.000 var
SRC 1 REACTIVE PWR
φc: 0.000 var
SRC 1 APPARENT PWR
3φ: 0.000 VA
SRC 1 APPARENT PWR
φa: 0.000 VA
SRC 1 APPARENT PWR
φb: 0.000 VA
SRC 1 APPARENT PWR
φc: 0.000 VA
SRC 1 POWER FACTOR
3φ:
SRC 1 POWER FACTOR
φa:
SRC 1 POWER FACTOR
φb:
SRC 1 POWER FACTOR
φc:
S = V
are phase voltage and phase current phasors
SRC 1 POS WATTHOUR:
0.000 Wh
SRC 1 NEG WATTHOUR:
0.000 Wh
SRC 1 POS VARHOUR:
0.000 varh
SRC 1 NEG VARHOUR:
0.000 varh
1.000
1.000
1.000
1.000
x Î
+ V
x Î
+ V
x Î
A
A
B
B
C
C
S = V
x Î
+ V
x Î
AB
A
CB
C
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: ACTUAL VALUES
SETTINGS SYSTEM SETUP SIGNAL
Eq. 6-1
Eq. 6-2
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