TD_PCM1x_Packages_Function/Operation_08.04_GB 17
3.1.2 Direction
Of
Power
If the item's current transformers are wired according to the pin diagram shown, the following values are displayed:
•
Positive generator real power........... The generator supplies real power.
•
Inductive gen. power factor
ϕ
.......... The generator is overexcited and supplies inductive re-active power.
•
Positive mains real power................ Real power is supplied to the mains.
•
Inductive mains power factor
ϕ
......... The mains receives inductive re-active power.
S1 (K)
S2 (L)
S2 (L)
S1 (K)
Active power
Dispaly positive
Reactive power
Display inductive
Active power
Display positive
Reactive power
Display capazitive
GCB
generator circuit breaker
MCB
mains circuit breaker
PCx
26
25
s1 (k)
G
s2 (l)
28
27
s1 (k)
s2 (l)
pos
pos
GENERATOR
ind
ind
Q
Q
P
P
pos
pos
ind
ind
Q
Q
P
P
BUSBAR
MAINS
PCMx
PCL1
PCMx
Figure 3.1: Direction of power
