Iskra FPC 200 - Page 27

Functionality
USER MANUAL FPC 200 - 3/2017 27
2.2.4.4 Setting parameters
Parameter
Range
Description
Enabled
No
Yes
Enabling protection function.
Operate mode
Off
Definitive time
Enabling protection function separately for each group level.
Pickup value
0,005 … 0,10 … 2,00 I
n_e
Limit of monitored current.
Trip delay
0,00 … 2,00 … 300,00 s
Delay of trip signal.
Pickup delay
0 … 5,00 … 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 … 1,00 I
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 12: Restricted earth fault function parameters.
2.2.4.5 Counters
Name
Description
Pickup
Total consecutive number of pickup signals.
Trip
Consecutive number of trip signals.
Table 13: Counters presented in restricted earth fault protection.