Woodward HighPROtec MCDLV4, Руководство пользователя

Страница: 1005 / 1275

Protective Elements
PF - Power Factor [55]
Available stages:
PF[1] ,PF[2]
These Element supervises the Power Factor within a defined area (limits).
The area is defined by four parameters.
The Trigger quadrant (lead or lag).
The Threshold (Power Factor value)
The Reset quadrant (lead or lag).
The Reset Value (Power Factor value)
1005 MCDLV4 DOK-HB-MCDLV4-2E
Active Power flows into the load
R
e
ac
tiv
e
P
o
w
e
r
flo
w
s
in
to
t
he
so
ur
ce
Active Power flows into the source
R
e
ac
tiv
e
P
ow
er
fl
o
w
s
in
to
t
he
lo
a
d
Quadrant1
Quadrant2
Quadrant3 Quadrant4
-P (Watts)
-Q (Vars)
-PF
+P (Watts)
-Q (Vars)
+PF
+P (Watts)
+Q (Vars)
+PF
-P (Watts)
+Q (Vars)
-PF
"Reverse" current lags voltage
"Reverse" current leads voltage
current leads voltage
current lags voltage