GE B30 Instruction Manual page 505
Bus differential system
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Also See for B30:
- Instruction manual (626 pages) ,
- Communications manual (532 pages) ,
- Technical reference manual (252 pages)
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CHAPTER 6: ACTUAL VALUES
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
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
are phase voltage and phase current phasors
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
B30 BUS DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
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:
1.000
SRC 1 POWER FACTOR
φa:
1.000
SRC 1 POWER FACTOR
φb:
1.000
SRC 1 POWER FACTOR
φc:
1.000
S = V
x Î
+ V
x Î
+ V
A
A
B
B
S = V
x Î
+ V
AB
A
CB
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
SETTINGS SYSTEM SETUP SIGNAL
x Î
C
C
x Î
C
METERING
Eq. 6-1
6
Eq. 6-2
6-19
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