22
Magtrol Model 6530 Three-Phase Power Analyzer
Chapter 3 – Installation/Configuration
SETUP
3-Volt, 3-Amp
•
Measures three-phase power.
•
Utilizes all three phases.
•
The Power Factor is derived from the following equations:
Amps
Σ
= (A
1
+ A
2
+ A
3
)/3, Volts
Σ
= (V
1
+ V
2
+ V
3
)/3
Active Power =
Σ
W = W
1
+ W
3
(
(
(
)
)
)
)
Apparent Power =
3
3
V
rms
1
A
rms
1
×
V
rms
3
A
rms
3
×
(
)
V
rms
2
A
rms
2
×
=
+
+
(
3
3
V
1
A
1
V
2
A
2
+
V
3
A
3
+
Power Factor =
Σ
W
/
3
3
( V
1
A
1
+ V
2
A
2
+ V
3
A
3
)
•
Most common hookup for three-phase motors.
The following diagrams show the connections for a 3-Volt, 3-Amp measurement.
Ø2
Ø3
Ø1
V
1
V
±
2
V
V
±
A
±
A
2
A
1
T
S
±
A
R
LOAD
SOURCE
±
LOAD
SOURCE
R
S
T
V
A
3
3
±
A
V
A
V
±
±
A
V
±
±
A
V
±
±
Figure 3–16 Three-Voltage, Three-Ampere Wiring Schematic
Ø3
Ø2
Ø1
EARTH
CB
MOV
LOAD
MOV
MOV
LOAD
LOAD
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
Figure 3–17 Three-Voltage, Three-Ampere Wiring Connection