Magtrol 7500 SERIES, Руководство пользователя

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Magtrol Model 6530 Three-Phase Power Analyzer
Chapter 3 – Installation/Configuration
SETUP
Magtrol 7500 Series Power Analyzer
3-phase, 3-Wire
• Measures three-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
(
(
( )
)
) )
Apparent Power =
3
2
V
rms
1
A
rms
1
× V
rms
3
A
rms
3
× = +
(
3
2
V
1
A
1
V
3
A
3
+
Active Power =
Σ
W = W
1
+ W
3
Power Factor =
Σ
W
/
3
2
( V
1
A
1
+ V
3
A
3
)
The following diagrams show the connections for a 3-Phase, 3-Wire measurement. Notice that
only phase one and three are used.
LOAD
S T
± A
±
3
V
V
V
±
1
R
SOURCE
3
±
A
A
V
LOAD SOURCE
R
S
T
Ø3 Ø1
A V
± ±
A V
± ±
A
1
Figure 3–12 Three-Phase, Three-Wire Wiring Schematic
MOV
LOAD
MOV
MOV
LOAD
LOAD
Ø2
Ø3
Ø1
LINE
CB
EARTH
Figure 3–13 Three-Phase, Three-Wire Wiring Connection