FLISR Calculated Incorrect Pickup Amps and After Feeder Amps in a Mutli-Phase Fault
(Doc ID 3013427.1)
Last updated on APRIL 08, 2024
Applies to:
Oracle Utilities Network Management System - Version 2.5.0.2.0 to 2.6.0.2.0 [Release 2.5 to 2.6] Oracle Network Management for Utilities - DMS - Version 2.5.0.2.0 to 2.6.0.2.0 [Release 2.5 to 2.6] Information in this document applies to any platform.
Symptoms
On : 2.5.0.1.0 version, Web DMS
FLISR calculated incorrect pickup amps and after feeder amps in a BC fault
There is a BC phase fault on a feeder. The FLISR detected the fault and provided the correct solution, but the event was demoted to manual mode. In the FLSIR report, it was noted that it had been demoted because of '3110: Event demoted for manual execution. At the present state of restoration, Feeder [#### (40075)] does not allow automatic execution.'
It appears that it was demoted to manual because the restoration plan showed a high number of violations.
Expected The pickup amps shown in the restoration option are incorrect. The tripped breaker pre-trip amps were in the 100's, whereas the pick up amps shown in the restoration options are close to 1300. It is clear that something is wrong with the pickup amplifier calculations.
Cause
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
