Fluke 1743 User Manual
1744/1743
Users Manual
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Total active power of the
fundamental for three
phases
fundamental for three
phases
∑
=
⋅
=
3
1
1
1
k
k
total
Ph
Ph
Apparent power of the
fundamental per phase.
Basic value for 200 ms.
fundamental per phase.
Basic value for 200 ms.
1
1
.
1
I
V
Sh
bas
=
Apparent power of the
fundamental per phase per
interval
fundamental per phase per
interval
∑
=
⋅
=
M
j
j
bas
Sh
M
Sh
1
1
1
1
Power factor of the
fundamental per phase
fundamental per phase
1
1
1
1
cos
1
Qh
Qh
Sh
Ph
total
⋅
=
ϕ
Total power factor on all
three phases
three phases
total
total
total
total
Qh
Qh
Sh
Sh
Sh
Ph
1
1
1
1
1
1
cos
3
2
1
1
⋅
+
+
=
ϕ
Active energy per phase
and total
and total
Active power accumulated on each logging interval
Sign of PF, tan φ, cos φ:
•
Sign “+” : Q positive (“inductive”)
•
Sign “–” : Q negative (“capacitive”) independent of the sign of active
power P
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