ENM - OM V2.2 01.02-05
Appendix 3
Default settings of the Device
Table 3.1 – Device factory setpoints
Setpoint
designatio
n
Setpoint name
Default values*
I>>, А
Short circuit triggering current setpoint
500
Cos φ
Maximum sensitivity angle of the power-
directional relay
30
Idif>>, А
In-rush current setpoint for short circuit
500
Uе>, V
Setpoint at 3U0
30
t>>, sec
Short circuit registration time
5.0
tе>, sec
Phase-to-ground fault registration time
0.10
Кtr TN
voltage transformer ratio
1
Кtr TNNP
zero sequence voltage transformer ratio
1
* – all values for secondary circuits.
For more information about the Device setpoints see the document "Feeder
monitor Lodestar FM-CS. Recommendations for the Setpoint Selection”.
35
Feeder Monitor
LODESTAR FM-CS