Preliminary
6.1.2 Power Factor (PF) cos φ
It is the Cosine of the phase angle φ or the sine of the loss angle δ
PF
=
cos
φ
=
P
S
cos
φ
=
P
S
=
P
√
P
2
+
Q
2
=
I
RX
I
=
sin
δ =
I
RX
√
I
RX
2
+
I
CX
2
=
tan
δ
√
1
+
tan
2
δ
=
sin
(
arctan
(
tan
δ))
where:
P
Real Power [W]
S
Apparent Power [VA]
I
total current [A]
I
RX
current through resistance [A]
I
CX
current through capacitance [A]
90315-1.2 Instruction Manual CAPO
Page 25 of 117
Содержание CAPO 2.5
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Страница 96: ...Appendix Page 96 of 117 CAPO 2 5 CAPO 12 90315 1 2 Instruction Manual CAPO CAPACITANCE AND POWER FACTOR METER ...
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