19
Magtrol Model 6530 Three-Phase Power Analyzer
Chapter 3 – Installation/Configuration
SETUP
1-Phase, 3-Wire
•
Measures single-phase power.
•
Utilizes input modules one and three.
•
The Power Factor is derived from the following equations:
Amps
Σ
= (A
1
+ A
3
)/2, Volts
Σ
= (V
1
+ V
3
)/2
Active Power =
Σ
W = W
1
+ W
3
Apparent Power = (V
rms1
× A
rms1
) + (V
rms3
× A
rms3
) = V
1
A
1
+ V
3
A
3
Power Factor =
Σ
W/( V
1
A
1
+ V
3
A
3
)
The following diagrams show the connections for a 1-Phase, 3-Wire measurement. Notice that
only phase one and three are used.
Ø3
Ø1
LOAD
SOURCE
±
V
A
A
±
V
V
1
3
1
N
±
V
LOAD
A
±
3
A
SOURCE
N
L1
L2
A
V
±
±
A
V
±
±
Figure 3-10 Single-Phase, Three-Wire Wiring Schematic
A
N
A
L
O
G
O
U
T
P
U
T
A
±
±
V
±
V
±
V
±±
±
±
A
V
A
±
EXT.
SYNC.
EARTH
GROUND
20VA 50/60Hz
FUSE (5x20mm)
CAUTION: DOUBLE POLE FUSING
120V UL/CSA 250mA 250V SB
240V IEC 160mA 250V T
RS-232C
GPIB/IEEE-488
MAGTROL INC.
20 A
AMPS
750 V
VOLTS
MAX.
EXT.
MAX.
1000 V
MAX.
MAX.
±10 V
SENSOR
20 A
AMPS
750 V
VOLTS
MAX.
EXT.
MAX.
1000 V
MAX.
MAX.
±10 V
SENSOR
20 A
AMPS
750 V
VOLTS
MAX.
EXT.
MAX.
1000 V
MAX.
MAX.
±10 V
SENSOR
MOV
LOAD
N
MOV
LOAD
L1
L2
CB
EARTH
Figure 3–11 Single-Phase, Three-Wire Wiring Connection
