S2.OP-AR.DG-0001 — EDG Alarm Response
Purpose
Provides alarm response guidance for Emergency Diesel Generator alarms, including lube oil pressure, temperature, and trip alarms.
Key Actions / Information
Exam — 2019 Q79
EDG Engine Lube Oil Header Low Pressure trip setpoint: EDG trips when lube oil header pressure FIRST lowers below 40 psig. Trap: the EDG ENGINE LUBE OIL HEADER LOW PRESSURE ALARM actuates at 60 psig — this is the alarm, not the trip. The trip occurs at 40 psig, 20 psi below the alarm.
Connections
- Related systems: EDGs
- Related exam questions: 2019 Q79
- Related exam: 2019 NRC Written Exam