InteliLite4 AMF20 Global Guide
262
Short Circuit BOC Delay
Setpoint group
Generator settings
Related FW
1.3.0
Range [units]
0.00 .. 10.00 [s]
Default value
0.04 s
Alternative config
YES
Step
0.01 s
Comm object
9991
Related applications
AMF, MRS
Config level
Advanced
Setpoint visibility
Always
Description
Delay for
protection.
IDMT Overcurrent Delay
Setpoint group
Generator settings
Related FW
1.3.0
Range [units]
1.0 .. 600.0 [s]
Default value
4.0 s
Alternative config
NO
Step
0.1 s
Comm object
8283
Related applications
AMF, MRS
Config level
Standard
Setpoint visibility
Always
Description
IDMT curve shape selection. IDMT is "very inverse" over current protection. Reaction time is not constant
but depends on over current level according to the following formula:
Note:
Reaction time is limited to 3600 s = 60 minutes. IDMT protection is not active for Reaction time
values longer than 60 minutes.
I
gen
is maximal value of all measured phases of generator current.
Table 8.1 EXAMPLE of Reaction time for different over current levels
Overcurrent IDMT Delay
Overcurrent
≤ 100 %
101 %
110 %
Reaction time
0.2 s
No action
20 s
2 s
2 s
No action
200 s
20 s
20 s
No action
2000 s
200 s