EOCC-MDGOH

  1. What is MDGOH?
    SSDG overheating
  2. What are the indications of SSDG Overheating?
    • Gauge JW temp above 206 F
    • JW temp alarm – 217 F
    • High or low water level in expansion tank
    • Low seawater pressure – 10 psi
    • Low JW alarm – 10 psi
    • Low LO alarm – 46 psi
    • High LO alarm – 198 F
  3. When is controlling action required?
    When JW temp is between 206 F and 217 F.
  4. What are the Controlling Actions of the EPCC?
    • “EOOW, SSDG overheating”
    • Start/parallel standby SSDG
    • Remove electrical load from affected SSDG
    • Monitor JW temp on affected SSDG
    • “EOOW, SSDG overheating. SSDG started and paralleled to the bus. Electrical load removed from SSDG.
  5. What are the Controlling Actions of the EOOW?
    • “OOD, No. _ SSDG overheating”.
    • “OOD _ SSDG overheating. _ SSDG started and paralleled to the bus. Electrical load removed from _ SSDG.
    • “CRT, align _ SSDG emergency cooling and monitor JW temp”.
  6. What are the Controlling Actions of the Rover/CRT?
    • “EOOW, manned and ready”
    • Align no _ SSDG emergency cooling and monitor JW temp.
    • “EOOW, _ SSDG emergency cooling aligned, JW temp increasing/decreasing.
    • NOTE: If JW temp exceeds 217 F proceed to Immediate Actions.
  7. What are the Immediate Actions of the EPCC?
    • “EOOW, No. _ SSDG overheating uncontrollable.”
    • E-stop _ SSDG. Verify GCB opens.
    • Start STBY SSDG.
    • “EOOW, STBY SSDG started and is ready for electrical load”.
    • “EOOW, No. _ SSDG overheating uncontrollable, No. _ SSDG E-stopped. Electrical plant configuration is _, with ship’s load of _ amps and _ kw on port bus, _ amps and _ kw on stbd bus.
    • What are the Immediate Actions of the EOOW?
    • “OOD, No. _ SSDG overheating uncontrollable.”
    • Order EPPC to close STBY GCB once STBY SSDG started.
    • “OOD, No. _ SSDG overheating uncontrollable, No. _ SSDG E-stopped. Electrical plant configuration is _.”
Author
EDJAN
ID
323857
Card Set
EOCC-MDGOH
Description
MDGOH
Updated