S2.OP-SO.CVC-0001 — CVCS Normal Operations
Purpose
Provides direction for normal operation of the Chemical and Volume Control System, including letdown orifice configuration and charging pump operation.
Key Actions / Information
Exam — 2022 Q30
Letdown orifice transfer involves valves 2CV18 and 2CV3.
Exam — 2019 Q82
Per S2.OP-AR.ZZ-00005 OHA E-20 (PZR HTR ON LVL HI) ARP, crew will reduce charging flow IAW S2.OP-SO.CVC-0001 when Charging Master Flow Controller fails high (increasing charging flow demand, charging flow, and PZR level). AB.CVC-0001 (Loss of Charging) is for when charging is LOST/reduced, not when it is running away high. The normal SOP addresses the high-charging-flow condition.
Connections
- Related systems: CVCS
- Related exam questions: 2019 Q82, 2022 Q30
- Related exam: 2019 NRC Written Exam, 2022 NRC Written Exam