1 / 17

CRANES

TURBINE. CRANES. NEA39. PLANT STATUS!. General System Diagram of. Palo Verde Nuclear Generating Station. Legend::. Safety Injection Systems. Reactor Coolant System. To Switchyard. Containment Building. Main Steam System. Main Feedwater System. Main Condensate System.

gerik
Download Presentation

CRANES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TURBINE CRANES NEA39 Turbine Crane

  2. PLANT STATUS! General System Diagram of Palo Verde Nuclear Generating Station Legend:: Safety Injection Systems Reactor Coolant System To Switchyard Containment Building Main Steam System Main Feedwater System Main Condensate System CONTAINMENT SPRAY Circulating Water System Transformer Turbine Building Auxiliary Feedwater System Cooling Tower and Fans Safety Injection Tank Moisture Separator Reheaters MSSVs ADVs 8 8 8 Steam Generator Auxiliary Building MSIV Pressurizer MTSV Control Rods MSSS Shutdown Heat Exchanger HP LP LP LP Generator Bldg. Turbine Turbine Turbine Turbine Equipment Cooling MTCV Z From Auxiliary Feedwater Pumps Containment Spray Pump Turbine Bypass Valves Reactor Core Refueling Water Tank Condensate Pump Reactor Coolant Pump Main Condenser Low Pressure Safety Injection Pump (HP) Feedwater Heaters (LP) Feedwater Heaters Circulating Water Pump High Pressure Safety Injection Pump Feedwater Regulation Valve Main Feedwater Pump Polishing Demineralizers Containment Sump Turbine Crane PV Daily Status Report

  3. Turbine Crane

  4. Walk downs • Review instructions to ensure workable and adequate • Right Parts/materials/tools • Permits • Relevant Operating Experience Turbine Crane

  5. Pre Job Briefs • Understand the Task • Critical Steps identified and OE used AND what actions are being taken in reference to these two areas • Two Minute Drills: • Hazards identified AND what are actions are you taking Turbine Crane

  6. Procedure Use & Adherence • WO / procedure in hand & latest revision • Place keepers being used • Sign steps as you go • Follow & understand steps - STOP if can't or don't Turbine Crane

  7. TURBINE CRANE • Terminal Objective Given references provided by the Instructor, the Plant Electrician will maintain Turbine Building Cranes as demonstrated by achieving a minimum of 80% on a written examination. Turbine Crane

  8. . Multi Stud Tensioner

  9. PRE-JOB BRIEF • Identify Critical Steps • Identify Error Precursors • Worst thing that can happen • Error prevention defenses to be used • Actions to assure proper configuration control Turbine Crane

  10. TURBINE CRANE EO 1.8 Describe the Corrective and Preventive maintenance performed on the Turbine Building Crane.

  11. Preventative Maintenance • Visual Crane Inspections • Check collectors and shoes for wear. • Visually check insulators for cracks. • Inspect all lighting fixtures, on the crane to insure all are illuminated and that the lighting in the cab, and that all electrical outlets (receptacles) are functional and grounded. • Inspect all the flat festoon cables for degradation and or damage. Insure cables are being properly supported and there is proper clearance between the structure and the cables so the do not make any contact to wear or rub the jacket. Turbine Crane

  12. Preventative Maintenance • Visual Crane Inspections • Inspect the control cab conduit for proper installation and are properly supported, outlet receptacles are functional, status lights and all crane rail lights to insure they illuminate are in a working condition. • Worker Verification: In Panels 4, 3, 2, & 1, ensure all fuses are the correct size, for the various components, and there are no signs of damage or degradation to the fuse blocks. • Inspect the Cranes safety Horn wiring , switches and contacts on the control panel in the cab for degradation. Turbine Crane

  13. Preventative Maintenance • PLC Battery Replacement: • Replace the back-up battery (s) in SLC Processor (S). • Catalog Number 1747-BA, Every Re-fuel cycle. • Note: Processors have a capacitor that provides at least 30 minutes of battery back-up while the battery is disconnected. Data in RAM is not lost if the battery is replaced within 30 minutes. Turbine Crane

  14. Preventative Maintenance • Motor Inspection and testing: • Main Hoist Motor • Aux Hoist Motor • Main Trolley Motor • North/South Bridge Crane Turbine Crane

  15. Preventative Maintenance • Motor Inspection and testing: • Inspect the motors for dust, dirt, signs of oil and grease and any other contaminates or degradation • Inspect the Motor & Brake Heaters for damage or degradation • Inspect all electrical conduit, flex, for proper installation and that there is no broken or degraded flex • Inspect the break enclosure and verify that it is clean, free of dust, dirt and any contamination that will interfere with the safe operation of the crane Turbine Crane

  16. Preventative Maintenance • Motor Inspection and testing: • Main and Aux Hoist Geared Limit Switches • Inspect the flex conduit for damage and degradation • North and South Bridge Crane • Inspect the limit switches conduit and flex for damage or degradation that will interfere with the safe operation of the crane. Turbine Crane

More Related