Iskra FPC 200 - Page 33

Functionality
USER MANUAL FPC 200 - 3/2017 33
2.3.1.5 Setting parameters
Parameter
Range
Description
Enabled
No
Yes
Enabling protection function.
Operate mode
Off
On
Enabling protection function separately for each group level.
Pickup value
0,05 … 1,10 … 2,00 U
n
Value at which fault conditions are considered.
Trip delay
0,00 … 2,00 … 300,00 s
Delay of trip signal
Pickup delay
0 … 5 … 1000 ms
Time stabilization of fault detection. As a filter of short
disturbances on measuring circuits. Time before protection starts.
Drop-out delay
0,00 … 0,20 … 60,00 s
Time stabilization of pickup signal. Time when the monitored value
is outside the operating range, but the protection does not stop
yet.
Drop-out ratio
0,80 … 0,95 … 0,99 U
p
Drop-out value below which the protection drops.
Pickup block
None
Variable 1
Variable 2
Variable 3
Variable 4
Source of blocking signal.
Table 20: Overvoltage protection function parameters.
2.3.1.6 Counters
Name
Description
Pickup
Total consecutive number of pickup signals.
Trip
Consecutive number of trip signals.
Pickup L12
Consecutive number of pickup signals detected in phase L12.
Pickup L23
Consecutive number of pickup signals detected in phase L23.
Pickup L31
Consecutive number of pickup signals detected in phase L31.
Table 21: Counters presented in overvoltage protection.