Siemens MJ-X, Инструкция по установке и эксплуатации

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Table 5.2
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o/p
PF =
Watts
Volts * Amps
Real Power kW
1
n
---
Vn(t) x In(t)
1
n
∑
=
ReactivePower kVAR
1
n
---
V(t) x I(t+90°)
1
n
∑
= =
kW (real power)
kVA
+kW (forward)
+kVAR (forward)
+PF (lagging)
+kW (forward)
-kVAR (reverse)
-PF (leading) -kW (reverse)
-kVAR (reverse)
+PF (lagging)
-kW (reverse)
+kVAR (
)
-PF (leading)
forward
-kW (reverse)
kVAR (reactive power)
I
IV III
II