3b duke energy jocassee rotor pole asia pacific partnership power gen task force

Asia-Pacific Partnership

on

Clean Development and Climate

Asia Pacific Partnership

United States of America

Power Generation Task Force

August 13 – 17, 2007

Eddie Duncan

Hydro Operations

Hydroelectric Generation Efficiency

Improvement

Jocassee Rotor Pole Refurbishment

2Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee Runner Upgrade Outage

Generator work

• Pole refurbishment

• Eliminating asbestos

• Replacing class b with class f

insulation

• Discovered improved technique for

pole key removal

• Re-rounding stator

• Re-wedge stator

• Shrink rotor rim

• Replace rim keys

• Currently developing repair and fix for

rotor rim iron bottom support plate

cracks

Jocassee Rotor Pole Refurbishment

3Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Removal

Jocassee Rotor Pole Refurbishment

4Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Key Removal Rigs

Jocassee Rotor Pole Refurbishment

5Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Key Removal Rigs

Jocassee Rotor Pole Refurbishment

6Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Removal

Jocassee Rotor Pole Refurbishment

7Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Removal

Jocassee Rotor Pole Refurbishment

8Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Removal

Jocassee Rotor Pole Refurbishment

9Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole being Lowered

Jocassee Rotor Pole Refurbishment

10Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Poles Awaiting Shipping

Jocassee Rotor Pole Refurbishment

11Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor Pole Shipping Crates

Jocassee Rotor Pole Refurbishment

12Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Rotor with Poles Removed

Jocassee Rotor Pole Refurbishment

13Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee - Generator Rotor Lift

Jocassee Runner Upgrades

14Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee - Generator Rotor Cross-Section

Jocassee Runner Upgrades

15Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee - Rotor Ledge Supporting Stack Iron

Jocassee Rotor

Ledge Cracking

Jocassee Runner Upgrades

16Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

NEAR MISS!!!

Jocassee - Rotor Ledge Crack and Failure

Jocassee Runner Upgrades

17Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee Damper

Bar Inspections

Jocassee - Damper Bar Cracking Problem

Jocassee Runner Upgrades

18Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee - Damper Bar Cracking Problem

Jocassee Damper

Bar Inspections

Jocassee Runner Upgrades

19Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee Damper

Bar Cracks

Jocassee - Damper Bar Cracking Problem

Jocassee Runner Upgrades

20Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Intake Structures

Jocassee Runner Upgrades

21Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Intake Cylinder Gate (Closed)

Jocassee Runner Upgrades

22Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Intake Gate (Lifted Off Seat)

Jocassee Runner Upgrades

23Asia Pacific Partnership • Aug 13 - 17, 2007

FirstEnergy Corp. & Duke Energy Corporation

Jocassee – Intake Tunnel Filled

Jocassee Runner Upgrades