InteliPro, SW version 1.0, ©ComAp – May 2011
InteliPro Reference Guide
4-23
LOM
Vs Lim [ ° ]
Threshold for activating the Vector shift protection.
Step: 1°
Range: 1 - 50°
0° = OFF, the Vector shift protection is disabled
Default setting: 10°
ROCOF [Hz/s]
Threshold for activating the Rate of change of frequency (ROCOF) protection.
Step: 0,01 Hz/s
Range: 0,00 - 10,0 Hz/s
0 = OFF, the ROCOF protection is disabled
Default setting: 0 Hz/s
ROCOF filt [-]
Determinates number of periods considered for evaluating ROCOF protection. Higher number means
lower sensitivity and longer evaluation time. Lower number means increased sensitivity and shorter
evaluation time.
Step: 1
Range: 0 - 100
Default setting: 5
LOM Init Del [ s ]
Delay for what the Loss of Mains (LOM, i.e. Vector shift and ROCOF) protection is disabled after
applying valid measured voltage (stepping into the operational area of voltage and frequency).
Step: 1 s
Range: 0 - 600 s
Default setting: 3 s
LOM Trip Del [ s ]
Duration of Loss of Mains (LOM, i.e. Vector shift and ROCOF) protection trip. After this delay, the fault
is considered as terminated and Fault reset is possible. In case of automatic fault reset, the timer is
started.
Step: 1 s
Range: 1 - 3600 s
Default setting: 3 s
LOM Block BI [ Block 1 / Block 2 / Block 1+2 / None ]
Selection of blocking binary input for loss of mains protections.
Default setting: None
LOM Trp BO [ Trp 1 / Trp 2 / Trp 1+2 / None ]
Selection of trip binary output for loss of mains protections.
Default setting: None
I>
NominMainsCurr [ A ]
Nominal mains feeder current. Serves for Ishort and Earth Fault current protections’ evaluation.
Step: 1 A
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