frako PQC - Page 56

56 | Description of the menu
Power Quality Controller – PQC | Operating Manual | FRAKO
With the control band alarm
option OFF, the alarm for
cosφ in the C range can be
suppressed. This range is not
critical in most applications,
since here cosφ is less than
cosφ
target
.
6.3.4.3 Switching cycle counter
Alarm limit 10 k to 500 k (increments of: 1k), default value = 80 k
6.3.4.4 Undervoltage
Alarm limit Cannot be adjusted. Triggered when the measured voltage
drops to less than 10 % of the set nominal network voltage.
6.3.4.5 Undercurrent
Alarm limit Cannot be adjusted. Triggered when the measured secondary
current drops below 10 mA.
Q
inductive
(
2
3
· Q
kStage
)
Q
capacitive
RM, EMR, PQC:
cos (φ) alarm
RM, EMR, PQC:
cos (φ) alarm
-3
cos (φ) = 1
P
drawn
cos (φ)
arget
4
PQC:
cos (φ) alarm
B
A
C
-2
2
3
-3 -2 -1 7654321
P
Regen.