Amend 0003 21R002 MNA SS Unit Rehab.pdf

W68SBV02401565

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

Thr purpose of this amendment is to incorporate the changes outlined below .

The proposal submission remains unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 15-Oct-2020

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912EF21R0002

X 9B. DATED (SEE ITEM 11)

22-Sep-2020

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO.

5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

15-Oct-2020

CODE

USAED, WALLA WALLA - CONTRACTING DIV.

HILLARY A. MORGAN

201 N. THIRD AVENUE

WALLA WALLA WA 99362

W912EF 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912EF21R0002

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Summary of Changes Amendment 0003 McNary Powerhouse Station Service Units 1 & 2 Turbine and Generator Rehabilitation

Solicitation W912EF21R0002

Revised SECTION 00 73 00 - SUPPLEMENTARY CONDITIONS

a. Updated the current Davis-Bacon Wage Determination.

Revised the following Specifications:

a. SECTION 48 13 16.0026, “REWIND OF HYDRAULIC-TURBINE DRIVEN GENERATORS”

i. Revised the following paragraphs

1) 2.12.1(a), “Stator Core Laminations”

2) 2.12.2, “Stator Lamination Die”

See revised specification for details

Revised the following Drawings: N/A

Attachments (photos) for 48 13 13.06 26:

• McNary SS unit photos of thrust bearing.pdf

SECTION 00 73 00 - SUPPLEMENTARY CONDITIONS

General Decision Number: OR20200077 09/25/2020 Superseded General Decision Number:

OR20190077 State: Oregon Construction Type: Heavy County: Umatilla County in Oregon.

HEAVY CONSTRUCTION PROJECTS Note: Under Executive Order (EO) 13658, an hourly minimum wage of $10.80 for calendar year 2020 applies to all contracts subject to the Davis- Bacon Act for which the contract is awarded (and any solicitation was issued) on or after January 1, 2015. If this contract is covered by the EO, the contractor must pay all workers in any classification listed on this wage determination at least $10.80 per hour (or the applicable wage rate listed on this wage determination, if it is higher) for all hours spent performing on the contract in calendar year 2020. If this contract is covered by the EO and a classification considered necessary for performance of work on the contract does not appear on this wage determination, the contractor must pay workers in that classification at least the wage rate determined through the conformance process set forth in 29 CFR 5.5(a)(1)(ii) (or the EO minimum wage rate,if it is higher than the conformed wage rate). The EO minimum wage rate will be adjusted annually. Please note that this EO applies to the above-mentioned types of contracts entered into by the federal government that are subject to the Davis-Bacon Act itself, but it does not apply to contracts subject only to the Davis-Bacon Related Acts, including those set forth at 29 CFR 5.1(a)(2)-(60). Additional information on contractor requirements and worker protections under the EO is available at www.dol.gov/whd/govcontracts. Modification Number Publication Date 0 01/03/2020 1 03/06/2020 2 08/14/2020 3 09/04/2020 4 09/25/2020 * CARP0001-038 06/01/2020 Rates Fringes CARPENTER (Excluding Form Work)............................$ 41.75 18.30 MILLWRIGHT.......................$ 43.26 18.75 ----------------- ----------------------------------------------- * ELEC0112-004 06/01/2020 Rates Fringes ELECTRICIAN......................$ 48.05 22.12 ---------------------------------------------------------------

- ENGI0701-040 01/01/2020 Rates Fringes POWER EQUIPMENT OPERATOR GROUP 1.....................$ 45.90 15.35 GROUP 1A....................$ 48.06 15.35 GROUP 1B....................$

50.22 15.35 GROUP 2.....................$ 43.99 15.35 GROUP 3.....................$ 42.84 15.35 GROUP 4.....................$ 41.01 15.35 GROUP 5.....................$ 39.77 15.35 GROUP 6.....................$

36.55 15.35 POWER EQUIPMENT OPERATORS CLASSIFICATIONS GROUP 1: CRANE:

Helicopter Operator, when used in erecting work; Whirley Operator, 90 ton and over; LATTICE BOOM CRANE: Operator 200 tons through 299 tons, and/or over 200 feet boom; HYDRAULIC CRANE: Hydraulic Crane Operator 90 tons through 199 tons with luffing or tower attachments;

GROUP 1A: HYDRAULIC CRANE: Hydraulic Operator, 200 tons and over (with luffing or tower attachment); LATTICE BOOM CRANE: Operator, 200 tons through 299 tons, with over 200 feet boom; GROUP 1B: LATTICE BOOM CRANE: Operator, 300 tons through 399 tons with over 200 feet boom; Operator 400 tons and over GROUP 2: CRANE: Cableway Operator, 25 tons and over; HYDRAULIC CRANE: Hydraulic crane operator 90 tons through 199 tons (without luffing or tower attachment); TOWER/WHIRLEY OPERATOR: Tower Crane Operator; Whirley Operator, under 90 tons; LATTICE BOOM CRANE: 90 through 199 tons and/or 150 to 200 feet boom; HYDRAULIC CRANE: Hydraulic crane operator, 50 tons through 89 tons (with luffing or tower attachment); Rubber tired scraper with tandom scrapers; Loader 120,000 lbs and above; BLADE: Auto Grader; Blade Operator-Robotic; Bulldozer over 120,000 lbs and above; GROUP 3: HYDRAULIC CRANE: Hydraulic crane operator, 50 tons through 89 tons (without luffing or tower attachment); LATTICE BOOM CRANES: Lattice Boom Crane-50 through 89 tons (and less than 150 feet boom); Rubber Tired Scraper: with tandom scrapers; self loading, paddle wheel, auger type, finish and/or 2 or more units; Loader 60,000 lbs and less than 120,000 lbs; Bulldozer over 70,000 lbs up to and including 120,000 lbs; GROUP 4: CRANE:

Hydraulic Crane Operator, under 50 tons; LATTICE BOOM CRANE OPERATOR: Lattice Boom Crane Operator, under 50 tons; TRACKHOE/BACKHOE-ROBOTIC: track and wheel type, up to and including 20,0000 lbs. with any or all attachments; BLADE: Blade Operator;

Tractor operator with boom attachment; DRILLING: Churm Drill and Earth Boring Machine Operator; Directional Drill Operator over 20,000 lbs pullback; CRANE: Chicago boom and similar types; Boom type lifting device, 5 ton capacity or less; Rubber-Tired Scraper, single engine, single scraper; Compactor-Self Propelled; Loaders 25,000 lbs and less than 60,000 lbs;

Bulldozer over 20,000 lbs and more than 100 horse up to 70,000 lbs; Screed; Compactor with blade; Mechanic GROUP 5: TRACKHOE/BACKHOE HYDRAULIC: Track type up to and including 20,000 lbs, Wheel type (Ford, John Deer, Case Type); Boom truck operator;

DRILLING: Churm Drill and Earth Boring Machine Operator; Directional Drill Operator less than 20,000 lbs pullback; Loaders, rubber tired type , less than 25,00 lbs; Forklift over 5 ton, Bulldozer 20,000 lbs or 100 horses or less; Roller; Compactor without blade GROUP 6:

LOADERS: (less than 1 cu yd.); Oiler; Grade Checker; Crane oiler; Forklift; Roller (non-asphalt) Zone Differential (add to Zone 1 rates): Zone 2 - $3.00 Zone 3 - $6.00 For the following metropolitan counties: MULTNOMAH; CLACKAMAS; MARION; WASHINGTON;

YAMHILL; AND COLUMBIA; CLARK; AND COWLITZ COUNTY, WASHINGTON WITH

MODIFICATIONS AS INDICATED: All jobs or projects located in Multnomah, Clackamas and Marion Counties, West of the western boundary of Mt. Hood National Forest and West of Mile Post 30 on Interstate 84 and West of Mile Post 30 on State Highway 26 and West of Mile Post 30 on Highway 22 and all jobs or projects located in Yamhill County, Washington County and Columbia County and all jobs or porjects located in Clark & Cowlitz County, Washington except that portion of Cowlitz County in the Mt. St. Helens ""Blast Zone"" shall receive Zone I pay for all classifications. All jobs or projects located in the area outside the identified boundary above, but less than 50 miles from the Portland City Hall shall receive Zone II pay for all classifications.

All jobs or projects located more than 50 miles from the Portland City Hall, but outside the identified border above, shall receive Zone III pay for all classifications. For the following cities:

ALBANY; BEND; COOS BAY; EUGENE; GRANTS PASS; KLAMATH FALLS;

MEDFORD; ROSEBURG All jobs or projects located within 30 miles of the respective city hall of the above mentioned cities shall receive Zone I pay for all classifications. All jobs or projects located more than 30 miles and less than 50 miles from the respective city hall of the above mentioned cities shall receive Zone II pay for all classifications. All jobs or projects located more than 50 miles from the respective city hall of the above mentioned cities shall receive Zone III pay for all classifications. ---------------------------------------------------------------- IRON0029-013 07/01/2020 Rates Fringes IRONWORKER (Reinforcing and Structural)......................$ 39.10

29.75 ---------------------------------------------------------------- LABO0737-005 06/01/2019 Rates Fringes Laborers: (Mason Tender-Cement/Concrete)..........$ 31.56 14.60 ---------------------------- ------------------------------------ LABO0737-031 06/01/2019 Rates Fringes Laborers: GROUP 1.....................$ 30.82 14.57 GROUP 2.....................$ 31.97 14.57 LABORER CLASSIFICATIONS GROUP 1: Asphalt Spreader GROUP 2: Grade Checker --------------------- ------------------------------------------- PAIN0055-022 07/01/2020 Rates Fringes PAINTER BRUSH, ROLLER AND SPRAY.....$ 25.94 13.34 ------------------------------------------------------- --------- PLUM0598-007 06/01/2019 Rates Fringes Plumbers and Pipefitters.........$ 50.47 32.17 - --------------------------------------------------------------- SUOR2009-075 11/23/2009 Rates Fringes

CARPENTER (Form Work Only).......$ 23.50 9.27 CEMENT MASON/CONCRETE FINISHER...$ 21.13 8.90 LABORER: Common or General......$ 21.05 4.38 LABORER: Fence Erection.........$ 23.88 7.45 LABORER: Flagger................$ 19.31 5.31 LABORER:

Pipelayer..............$ 20.52 4.51 LINE CONSTRUCTION: Groundman....$ 31.36 7.27 OPERATOR: Bobcat/Skid Steer/Skid Loader................$ 22.77 7.90 OPERATOR:

Broom/Sweeper.........$ 32.31 6.43 OPERATOR: Excavator.............$ 30.12 6.23 OPERATOR:

Paver (Asphalt, Aggregate, and Concrete).........$ 27.59 2.96 TRUCK DRIVER: Dump Truck........$ 23.79 5.95 TRUCK DRIVER: Off the Road Truck............................$ 31.81 6.33 TRUCK DRIVER: Water Truck.......$ 26.12 6.53 --------------------------------------------------------- ------- WELDERS - Receive rate prescribed for craft performing operation to which welding is incidental.

================================================================ Note:

Executive Order (EO) 13706, Establishing Paid Sick Leave for Federal Contractors applies to all contracts subject to the Davis-Bacon Act for which the contract is awarded (and any solicitation was issued) on or after January 1, 2017. If this contract is covered by the EO, the contractor must provide employees with 1 hour of paid sick leave for every 30 hours they work, up to 56 hours of paid sick leave each year. Employees must be permitted to use paid sick leave for their own illness, injury or other health-related needs, including preventive care; to assist a family member (or person who is like family to the employee) who is ill, injured, or has other health-related needs, including preventive care; or for reasons resulting from, or to assist a family member (or person who is like family to the employee) who is a victim of, domestic violence, sexual assault, or stalking. Additional information on contractor requirements and worker protections under the EO is available at www.dol.gov/whd/govcontracts. Unlisted classifications needed for work not included within the scope of the classifications listed may be added after award only as provided in the labor standards contract clauses (29CFR 5.5 (a) (1) (ii)). ----------------------------------------- ----------------------- The body of each wage determination lists the classification and wage rates that have been found to be prevailing for the cited type(s) of construction in the area covered by the wage determination. The classifications are listed in alphabetical order of ""identifiers"" that indicate whether the particular rate is a union rate (current union negotiated rate for local), a survey rate (weighted average rate) or a union average rate (weighted union average rate). Union Rate Identifiers A four letter classification abbreviation identifier enclosed in dotted lines beginning with characters other than ""SU"" or ""UAVG"" denotes that the union classification and rate were prevailing for that classification in the survey. Example: PLUM0198-005 07/01/2014. PLUM is an abbreviation identifier of the union which prevailed in the survey for this classification, which in this example would be Plumbers. 0198 indicates the local union number or district council number where applicable, i.e., Plumbers Local 0198. The next number, 005 in the example, is an internal number used in processing the wage determination.

07/01/2014 is the effective date of the most current negotiated rate, which in this example is July 1, 2014. Union prevailing wage rates are updated to reflect all rate changes in the collective bargaining agreement (CBA) governing this classification and rate. Survey Rate Identifiers Classifications listed under the ""SU"" identifier indicate that no one rate prevailed for this classification in the survey and the published rate is derived by computing a weighted average rate based on all the rates reported in the survey for that classification. As this weighted average rate includes all rates reported in the survey, it may include both union and non-union rates.

Example: SULA2012-007 5/13/2014. SU indicates the rates are survey rates based on a weighted average calculation of rates and are not majority rates. LA indicates the State of Louisiana. 2012 is the year of survey on which these classifications and rates are based. The next number, 007 in the example, is an internal number used in producing the wage determination. 5/13/2014 indicates the survey completion date for the classifications and rates under that identifier. Survey wage rates are not updated and remain in effect until a new survey is conducted. Union Average Rate Identifiers Classification(s) listed under the UAVG identifier indicate that no single majority rate prevailed for those classifications; however, 100% of the data reported for the classifications was union data. EXAMPLE: UAVG-OH-0010 08/29/2014. UAVG indicates that the rate is a weighted union average rate. OH indicates the state. The next number, 0010 in the example, is an internal number used in producing the wage determination. 08/29/2014 indicates the survey completion date for the classifications and rates under that identifier. A UAVG rate will be updated once a year, usually in January of each year, to reflect a weighted average of the current negotiated/CBA rate of the union locals from which the rate is based. ----------------------- ----------------------------------------- WAGE DETERMINATION APPEALS PROCESS 1.) Has there been an initial decision in the matter? This can be: * an existing published wage determination * a survey underlying a wage determination * a Wage and Hour Division letter setting forth a position on a wage determination matter * a conformance (additional classification and rate) ruling On survey related matters, initial contact, including requests for summaries of surveys, should be with the Wage and Hour Regional Office for the area in which the survey was conducted because those Regional Offices have responsibility for the Davis-Bacon survey program. If the response from this initial contact is not satisfactory, then the process described in 2.) and 3.) should be followed. With regard to any other matter not yet ripe for the formal process described here, initial contact should be with the Branch of Construction Wage Determinations. Write to: Branch of Construction Wage Determinations Wage and Hour Division U.S. Department of Labor 200 Constitution Avenue, N.W. Washington, DC 20210 2.)

If the answer to the question in 1.) is yes, then an interested party (those affected by the action) can request review and reconsideration from the Wage and Hour Administrator (See 29 CFR Part

1.8 and 29 CFR Part 7). Write to: Wage and Hour Administrator U.S. Department of Labor 200 Constitution Avenue, N.W. Washington, DC 20210 The request should be accompanied by a full statement of the interested party's position and by any information (wage payment data, project description, area practice material, etc.) that the requestor considers relevant to the issue. 3.) If the decision of the Administrator is not favorable, an interested party may appeal directly to the Administrative Review Board (formerly the Wage Appeals Board). Write to: Administrative Review Board U.S. Department of Labor 200 Constitution Avenue, N.W. Washington, DC 20210 4.) All decisions by the Administrative Review Board are final.

================================================================ END

OF GENERAL DECISION"

(End of Summary of Changes)

McNar y Power house St at i on Ser vi ce Tur bi ne & Gener at or Rehab W912EF21R0002

AMEND0003

PROJECT TABLE OF CONTENTS

DI VI SI ON 00 - PROCUREMENT AND CONTRACTI NG REQUI REMENTS

00 01 15. 00 28 LI ST OF DRAWI NGS

DI VI SI ON 01 - GENERAL REQUI REMENTS

01 00 00. 00 28 GENERAL REQUI REMENTS

01 11 00. 00 26 SUMMARY OF WORK

01 11 01. 00 28 SUPPLEMENTARY REQUI REMENTS

01 14 00. 10 28 PROJECT SI TE RESTRI CTI ONS

01 14 00. 90 28 I NTEGRATI NG ANTI TERRORI SM ( AT) AND OPERATI ONS SECURI TY

(OPSEC)

01 20 00. 00 20 PRI CE AND PAYMENT PROCEDURES

01 22 00. 00 28 MEASUREMENT AND PAYMENT

01 32 01. 00 28 PROJECT SCHEDULE

01 33 00 SUBMI TTAL PROCEDURES

01 35 29. 10 28 GOVERNMENTAL SAFETY REQUI REMENTS

01 42 00 SOURCES FOR REFERENCE PUBLI CATI ONS

01 45 01. 00 28 RESI DENT MANAGEMENT SYSTEM CONTRACTOR MODE ( RMS CM)

01 45 04. 00 28 CONTRACTOR QUALI TY CONTROL

01 51 00. 00 28 TEMPORARY UTI LI TI ES

01 54 19. 10 28 USE OF GOVERNMENT CRANES

01 55 10. 00 28 CONTRACTOR WORK, ACCESS AND STORAGE AREAS

01 57 20. 00 28 ENVI RONMENTAL PROTECTI ON

01 78 00. 00 28 CLOSEOUT SUBMI TTALS

01 78 23. 00 28 OPERATI ON AND MAI NTENANCE DATA

DI VI SI ON 02 - EXI STI NG CONDI TI ONS

02 83 33. 12 28 LEAD BASED PAI NT ( LBP) REMOVAL AND DI SPOSAL

DI VI SI ON 03 - CONCRETE

03 60 00. 01 26 CONCRETE DEMOLI TI ON, REPAI R OF CONCRETE SURFACES, AND

MI NOR EQUI PMENT FOUNDATI ONS

DI VI SI ON 05 - METALS

05 05 23. 20 26 WELDING

05 05 33. 20 26 NON- DESTRUCTI VE TESTI NG

05 50 03. 20 26 METALWORK FABRI CATI ON, MACHI NE WORK, AND MI SCELLANEOUS

PROVISIONS

05 50 14. 00 26 TURBI NE MAI NTENANCE PLATFORM

DI VI SI ON 09 - FI NI SHES

09 97 02. 00 26 PAI NTI NG: HYDRAULI C STRUCTURES

DI VI SI ON 13 - SPECI AL CONSTRUCTI ON

13 48 00. 00 26 SEI SMI C RESTRAI NT FOR MECHANI CAL AND ELECTRI CAL EQUI PMENT

DI VI SI ON 22 - PLUMBI NG

22 00 00. 00 26 MECHANI CAL EQUI PMENT AND PI PI NG

DI VI SI ON 25 - I NTEGRATED AUTOMATI ON

PROJECT TABLE OF CONTENTS Page 1

25 05 11. 00 28 CYBERSECURITY

DI VI SI ON 26 - ELECTRI CAL

26 05 00. 00 26 BASI C ELECTRI CAL MATERI ALS AND METHODS

26 05 19. 00 26 I NSULATED WI RE AND CABLE

DI VI SI ON 41 - MATERI AL PROCESSI NG AND HANDLI NG EQUI PMENT

41 22 13. 75 26 BELOW- THE- HOOK LI FTI NG DEVI CES

DI VI SI ON 42 - PROCESS HEATI NG, COOLI NG, AND DRYI NG EQUI PMENT

42 13 19. 00 26 SURFACE AI R COOLERS FOR GENERATORS

DI VI SI ON 48 - ELECTRI CAL POWER GENERATI ON

48 08 00. 00 28 COMMI SSI ONI NG OF ELECTRI CAL POWER GENERATI ON

48 13 13. 02 26 DI SASSEMBLY AND REASSEMBLY OF HYDRAULI C TURBI NE GENERATOR

UNIT

48 13 13. 04 26 EXI STI NG TURBI NE COMPONENT, REFURBI SHMENT AND REPLACEMENT

48 13 13. 06 26 GENERATOR THRUST BEARI NG I NSPECTI ON AND REFURBI SHMENT

48 13 13. 07 26 TURBI NE AND GENERATOR GUI DE BEARI NG REFURBI SHMENT

48 13 13. 11 26 MI SCELLANEOUS PARTS, MATERI ALS, AND SERVI CES

48 13 16. 00 26 REWI ND OF HYDRAULI C- TURBI NE DRI VEN GENERATORS

48 13 16. 24 26 GENERATOR BRAKE SYSTEM MECHANI CAL WORK

48 19 26. 00 26 ROTATI NG BRUSHLESS EXCI TERS

- - End of Pr oj ect Tabl e of Cont ent s - -

PROJECT TABLE OF CONTENTS Page 2

G4EDDRLM

Pencil

SECTI ON TABLE OF CONTENTS

DI VI SI ON 48 - ELECTRI CAL POWER GENERATI ON

SECTI ON 48 13 16. 00 26

REWI ND OF HYDRAULI C- TURBI NE DRI VEN GENERATORS

PART 1 GENERAL

1. 1 GENERAL I NFORMATI ON

1. 2 REFERENCES

1. 3 SUBMI TTALS

1. 4 EXI STI NG GENERATOR I NFORMATI ON

1. 4. 1 Uni t I dent i f i cat i on and Namepl at e

1. 4. 2 Test Repor t Dat a

1. 4. 3 Descr i pt i on of Gener at or

1. 4. 4 Fai l ur e Hi st or y

1. 4. 5 I nspect i on by Cont r act or

1. 5 WARRANTY

1. 6 DELI VERY AND HANDLI NG

PART 2 PRODUCTS

2. 1 MATERI ALS

2. 2 WI NDI NG RATI NG AND I NSULATI ON CLASS

2. 3 NAMEPLATE

2. 4 STATOR COI LS

2. 4. 1 Gener al

2. 4. 2 Coi l Desi gn

2. 4. 2. 1 Conduct or St r and I nsul at i on

2. 4. 2. 2 Tur n I nsul at i on

2. 4. 2. 3 Gr ound I nsul at i on

2. 4. 2. 4 Coi l Consol i dat i on

2. 4. 3 Coi l Manuf act ur i ng Met hods

2. 4. 3. 1 Vacuum Pr essur e I mpr egnat i on ( VPI )

2. 4. 3. 2 Resi n Ri ch Tapes

2. 4. 4 Fi ni sh and Par t i al Di schar ge Suppr essi on Tr eat ment

2. 4. 5 Gr aded Suppr essi on Tr eat ment

2. 4. 6 Coi l Test Recor d

2. 4. 7 Pr ot ot ype Coi l s

2. 4. 8 Quant i t y

2. 5 RESI STANCE TEMPERATURE DETECTORS ( RTDs)

2. 6 RTD MONI TORI NG SYSTEM

2. 7 FI LLERS, WEDGES, TI ES, AND BLOCKI NG MATERI AL

2. 7. 1 Gener al

2. 7. 2 St at or Assembl y Mat er i al s and Di mensi ons

2. 7. 3 Si de Packi ng

2. 7. 4 Cent er and Bot t om Fi l l er

2. 7. 5 Spr i ng- Type Fi l l er Mat er i al

2. 7. 6 Wedges and Top Fi l l er

2. 7. 7 Two- Par t Wedges

2. 7. 8 Wedgi ng Syst em Def l ect i on Char act er i st i cs

2. 7. 9 End Wi ndi ng Br aci ng and Bl ocki ng Mat er i al

2. 8 CI RCUI T RI NGS AND STATOR CONNECTI ONS

2. 8. 1 Gener al

2. 8. 2 El ect r i cal Conf i gur at i on

2. 8. 3 Physi cal Const r uct i on

SECTI ON 48 13 16. 00 26

2. 9 SURGE RI NGS

2. 10 MAI N AND NEUTRAL LEADS

2. 11 PDA SYSTEM ( OPTI ONAL)

2. 11. 1 Gener al

2. 11. 2 Coupl i ng Capaci t or s

2. 11. 3 Leads

2. 11. 4 Ter mi nat i on Panel

2. 11. 5 Anal yzer

2. 12 STATOR CORE MATERI ALS

2. 12. 1 St at or Cor e Lami nat i ons

2. 12. 2 St at or Lami nat i on Di e

2. 12. 3 St at or Keybar s

2. 12. 4 St at or Cl ampi ng Syst em

2. 13 GENERATOR AUXI LI ARY EQUI PMENT

2. 13. 1 Neut r al Cur r ent Tr ansf or mer s

2. 14 MATERI ALS FOR FI ELD WI NDI NG REFURBI SHMENT ( OPTI ONAL)

2. 14. 1 Rei nsul at i on of Rot or Fi el d Pol es

2. 14. 2 I nt er pol e Connect or s

2. 14. 3 Taper ed Mount i ng Keys

2. 15 SPARE PARTS

2. 15. 1 Gener al

2. 15. 2 Packagi ng and St or age

2. 15. 3 Coi l s and Suppl i es

2. 15. 4 RTDs

2. 15. 5 Lami nat i ons

2. 15. 6 St at or Cor e Vent Duct Lami nat i ons

2. 15. 7 Rot or Pol es

2. 16 OPERATI ONS AND MAI NTENANCE MANUAL

PART 3 EXECUTI ON

3. 1 STATOR DESI GN REVI EW MEETI NG

3. 1. 1 Gener al

3. 1. 2 Requi r ement s

3. 2 GENERAL TESTI NG REQUI REMENTS

3. 3 VOLTAGE ENDURANCE TESTS

3. 3. 1 Test Pr ocedur e

3. 3. 2 Vol t age Endur ance Test of Pr ot ot ype Coi l s

3. 3. 3 Vol t age Endur ance Test of Pr oduct i on Run Coi l s

3. 4 COI L DI SSECTI ONS

3. 5 PRODUCTI ON RUN COI L FACTORY TESTI NG

3. 5. 1 Gener al

3. 5. 2 Coi l Fact or y Test Pr ocedur e

3. 5. 3 St r and I nsul at i on Test i ng

3. 5. 4 St r and Cont i nui t y Test i ng

3. 5. 5 Gr ound I nsul at i on Di el ect r i c Test

3. 5. 6 Power Fact or Ti p- Up Test i ng

3. 5. 7 Di ss i pat i on Fact or Test i ng

3. 5. 8 St at or Coi l Di mensi on Test

3. 5. 9 Tur n I nsul at i on Di el ect r i c Test i ng

3. 6 COI L ACCEPTANCE CRI TERI A

3. 7 SPRI NG TYPE FI LLER MATERI AL TEST

3. 8 RESI STANCE TEMPERATURE DETECTOR ( RTD) TESTS

3. 9 STATOR LAMI NATI ON TESTI NG

3. 10 GENERATOR DI SASSEMBLY

3. 11 REMOVAL OF EXI STI NG WI NDI NG

3. 12 STATOR CORE REPLACEMENT

3. 12. 1 Remove St at or Cor e

3. 12. 2 St at or Fr ame I nspect i on

SECTI ON 48 13 16. 00 26

3. 12. 3 Cent er and Round St at or

3. 12. 4 Pi l e St at or Cor e

3. 12. 5 Cl ampi ng Syst em

3. 12. 6 Fi nal Check

3. 12. 7 Of f s i t e St at or Cor e and Fr ame Wor k

3. 13 STATOR CORE I NTERLAMI NAR I NSULATI ON TEST

3. 13. 1 Gener al

3. 13. 2 Test Pr ocedur e

3. 14 APPLI CATI ON OF EPOXY

3. 15 APPLI CATI ON OF VARNI SH

3. 16 I NSTALLATI ON OF STATOR WI NDI NG

3. 16. 1 Gener al

3. 16. 2 St at or Wi ndi ng I nst al l at i on Pr ocedur e

3. 16. 3 Sl ot Posi t i on Recor d

3. 16. 4 Pr el i mi nar y Coi l I nspect i on and Pr epar at i on

3. 16. 5 I nst al l i ng RTDs

3. 16. 6 Coi l Packi ng i n Sl ot

3. 16. 7 Connect i ons

3. 16. 8 Br aci ng

3. 16. 9 Ci r cui t Ri ng I nst al l at i on

3. 16. 10 Mai n and Neut r al Lead I nsul at i on

3. 16. 11 St at or Wi ndi ng Fi nal I nspect i on Repor t

3. 16. 12 Fi ni sh Tr eat ment

3. 16. 13 Sl ot Number s

3. 17 TESTS DURI NG WI NDI NG I NSTALLATI ON

3. 17. 1 Coi l Sur f ace t o Sl ot Wal l Cont act Resi st ance

3. 17. 2 Coi l Hi gh Pot ent i al Test s

3. 17. 3 Tr ansposi t i on Gr oup I nsul at i on Test

3. 17. 4 Tur n- t o- Tur n Di el ect r i c Test s

3. 18 PDA SYSTEM I NSTALLATI ON ( OPTI ONAL)

3. 18. 1 Gener al

3. 18. 2 Coupl i ng Capaci t or s

3. 18. 3 Leads

3. 18. 4 Ter mi nat i on Panel

3. 19 PDA SYSTEM TESTI NG ( OPTI ONAL)

3. 19. 1 Gener al

3. 19. 2 Test Equi pment

3. 19. 3 PDA Test s

3. 19. 4 PDA Test Repor t

3. 19. 5 St at or Wi ndi ng Basel i ne PDA Measur ement s

3. 19. 6 PDA Syst em Tr ai ni ng

3. 20 I NSTALLATI ON AND TESTI NG OF GENERATOR AUXI LI ARY EQUI PMENT

3. 20. 1 Neut r al Cur r ent Tr ansf or mer I nst al l at i on

3. 20. 2 Neut r al Cur r ent Tr ansf or mer Test i ng

3. 21 ROTOR AND FI ELD WI NDI NG CLEANI NG, I NSPECTI ON, AND TESTI NG

3. 21. 1 Fi el d Wi ndi ng Test i ng and Rot or Cl eani ng

3. 21. 2 Rot or I nspect i on

3. 21. 3 Fi el d Wi ndi ng Test s

3. 22 FI ELD WI NDI NG REFURBI SHMENT ( OPTI ONAL)

3. 22. 1 Gener al

3. 22. 2 Rot or Pol e Removal and Tr anspor t at i on

3. 22. 3 Rei nsul at i on of Fi el d Wi ndi ng

3. 22. 4 Rot or Pol e Fact or y Test s

3. 22. 5 Tr anspor t at i on and Rei nst al l at i on

3. 22. 6 I nt er pol e Connect i ons

3. 22. 7 Rot or Pol e Fi el d Test s

3. 23 REPLACEMENT OF FI ELD LEADS

3. 24 ROTOR VARNI SH

3. 25 I NI TI AL ACCEPTANCE TESTS

3. 26 GENERATOR REASSEMBLY

3. 27 GENERATOR DRY- OUT

3. 28 FI NAL ACCEPTANCE TESTS

3. 29 GENERATOR SPECI AL FI ELD TESTS

3. 29. 1 Gener al

3. 29. 2 Ver i f i cat i on Test s

3. 29. 3 Det er mi nat i on Test s

- - End of Sect i on Tabl e of Cont ent s - -

SECTI ON 48 13 16. 00 26

REWI ND OF HYDRAULI C- TURBI NE DRI VEN GENERATORS

PART 1 GENERAL

1. 1 GENERAL I NFORMATI ON

Thi s Sect i on cover s t he f ol l owi ng wor k t o r ewi nd t wo st at i on ser vi ce gener at or s at McNar y Lock and Dam

a. Suppl y, i nst al l , and t est t wo st at or wi ndi ngs, i ncl udi ng r emovi ng t he ol d st at or wi ndi ngs

b. Suppl y, i nst al l , and t est t wo st at or cor es, i ncl udi ng r emovi ng t he ol d st at or cor es.

c. At t he opt i on of t he Gover nment , r ef ur bi sh up 52 r ot or f i el d pol es. The r ot or f i el d pol es may cont ai n asbest os mat er i al s.

d. The Cont r act or may r ewi nd t he st at or wi ndi ng and r est ack t he st at or cor e on s i t e or i n t he f act or y, i n accor dance wi t h r evi ewed and appr oved submi t t al s and pr ocedur es.

1. 2 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o i n t he t ext by basi c desi gnat i on onl y.

ASTM I NTERNATI ONAL ( ASTM)

ASTM A 343 ( 2014) St andar d Test Met hod f or Al t er nat i ng- Cur r ent Magnet i c Pr oper t i es of Mat er i al s at Power Fr equenci es usi ng Wat t met er - Ammet er - Vol t met er Met hod and 25- cm Epst ei n Test Fr ame

ASTM A 717 ( 2012) St andar d Test Met hod f or Sur f ace I nsul at i on Resi st i v i t y of Si ngl e- St r i p Specimens

ASTM A 720 ( 2002; R 2016) St andar d Test Met hod f or Duct i l i t y of Nonor i ent ed El ect r i cal St eel

ASTM D 1868 ( 2013) St andar d Test Met hod f or Det ect i on and Measur ement of Par t i al Di schar ge ( Cor ona) Pul ses i n Eval uat i on of I nsul at i on Syst ems

AMERI CAN WELDI NG SOCI ETY ( AWS)

AWS A5. 8/ A5. 8M ( 2012) Speci f i cat i on f or Fi l l er Met al s f or Br azi ng and Br aze Wel di ng

I NSTI TUTE OF ELECTRI CAL AND ELECTRONI CS ENGI NEERS ( I EEE)

I EEE 43 ( 2013) Recommended Pr act i ce f or Test i ng I nsul at i on Resi st ance of Rot at i ng Machi ner y

I EEE 56 ( 2016) Gui de f or I nsul at i on Mai nt enance of El ect r i c Machi nes

I EEE 95 ( 2002; R 2012) Recommended Pr act i ce f or I nsul at i on Test i ng of Lar ge AC Rot at i ng Machi ner y wi t h Hi gh Di r ect Vol t age

I EEE 115 ( 2009) Gui de f or Test Pr ocedur es f or Synchr onous Machi nes: Par t I Accept ance and Per f or mance Test i ng; Par t I I Test Pr ocedur es and Par amet er Det er mi nat i on f or Dynami c Anal ysi s

I EEE 286 ( 2000; R 2012) Recommended Pr act i ce f or Measur ement of Power Fact or Ti p- Up of El ect r i c Machi ner y St at or Coi l I nsul at i on

I EEE 1043 ( 1996; R 2009) Recommended Pr act i ce f or Vol t age- Endur ance Test i ng of For m- Wound Bar s and Coi l s

I EEE 1434 ( 2014) Gui de f or t he Measur ement of Par t i al Di schar ges i n AC El ect r i c Machi ner y

I EEE 1553 ( 2002; R 2007) St andar d f or Vol t age- Endur ance Test i ng of For m- Wound Coi l s and Bar s f or Hydr ogener at or s

I EEE 1799 ( 2012) Recommended Pr act i ce f or Qual i t y Cont r ol Test i ng of Ext er nal Di schar ges on St at or Coi l s, Bar s, and Wi ndi ngs

I EEE C50. 12 ( 2005; R 2010) St andar d f or Sal i ent Pol e 50 HZ and 60 Hz Synchr onous Gener at or s and Gener at i on/ Mot or s f or Hydr aul i c Tur bi ne Appl i cat i ons Rat ed 5 MVA and above

I EEE C57. 13 ( 2008; I NT 2009) St andar d Requi r ement s f or I nst r ument Tr ansf or mer s

I EEE C57. 13. 1 ( 2006; R 2012) Gui de f or Fi el d Test i ng of Rel ayi ng Cur r ent Tr ansf or mer s

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

NEMA FI 1 ( 2004) Manuf act ur ed El ect r i cal Mi ca

NEMA LI 1 ( 1998; R 2011) I ndust r i al Lami nat i ng Ther moset t i ng Pr oduct s

NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 70 ( 2017) Nat i onal El ect r i cal Code

Occupat i onal Saf et y and Heal t h Act ( OSHA)

54 CFR 2920 ( 1970) Wi l l i ams St ei ger Occupat i onal Saf et y and Heal t h Act

1. 3 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s havi ng an " I " ar e f or i nf or mat i on onl y. Desi gnat i on f ol l owi ng t he " G" or " I " desi gnat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment . Submi t t he f ol l owi ng i n accor dance wi t h Section 01 33 00, SUBMI TTAL PROCEDURES.

SD- 01 Pr econst r uct i on Submi t t al s ;

Wi t hi n 60 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

St at or Wi ndi ng War r ant y Det ai l s ; I , HDC

St at or Coi l Faci l i t y ; G, HDC

St at or Coi l Vol t age Endur ance Test Faci l i t y ; G, HDC

St at or Desi gn Revi ew Meet i ng; I

Lami nat i on Manuf act ur i ng Faci l i t y ; G, HDC

SD- 02 Shop Dr awi ngs

I ncl ude a par t s l i s t i n shop dr awi ngs as appr opr i at e.

Wi t hi n 60 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Cr oss- Sect i onal Vi ew of St at or Coi l s ; G, HDC

Ext er i or Di mensi ons of St at or Coi l s ; G, HDC

Wi ndi ng Di agr am; G, HDC

St at or Coi l Connect i on; G, HDC

Connect i on Det ai l s ; G, HDC

Wi ndi ng Br aci ng Conf i gur at i on; G, HDC

Ci r cui t Ri ng Conf i gur at i on and Di mensi ons; G, HDC

Sur ge Ri ngs; G, HDC

Mai n and Neut r al Lead Det ai l s ; G, HDC

Mai n and Neut r al Lead Ar r angement ; G, HDC

Nameplate ; G, HDC

St at or Cor e Lami nat i ons; G, HDC

St at or Cor e Vent Duct Spacer s; G, HDC

St at or Cor e Compl et ed Assembl y; G, HDC

Lami nat i on Di e; I , HDC

Cor e Keybar s; G, HDC

St at or Cor e Cl ampi ng Syst em; G, HDC

Wi t hi n 60 cal endar days af t er t he Gover nment has exer ci sed t he opt i on t o r ef ur bi sh t he r ot or pol es:

Rot or Pol e Assembl y and Det ai l s( Opt i onal ) ; G, HDC

Rot or Pol e Connect i ons Assembl y and Det ai l s ; ( Opt i onal ) G, HDC

SD- 03 Pr oduct Dat a

Wi t hi n 60 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

St at or Coi l I nsul at i on Syst em; G, HDC

PDA Syst em; ( Opt i onal ) G, HDC

Wi t hi n 90 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

RTDs and RTD Ext ensi on Cabl e Cat al og Cut s; G, HDC

St at or Assembl y Mat er i al s and Di mensi ons; G, HDC

Cur r ent Tr ansf or mer Cat al og Cut ; G, HDC

Wi t hi n 120 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Spr i ng Type Washer s Loadi ng; G, HDC

SD- 05 Desi gn Dat a

Wi t hi n 90 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Wedgi ng Syst em Def l ect i on Char act er i st i cs; G, HDC

DC I ² R Copper Losses Desi gn Cal cul at i ons; G, HDC

St r ay Load Losses Desi gn Cal cul at i ons; G, HDC

Maxi mum Temper at ur e Ri se; G, HDC

Temper at ur e Ri se Cal cul at i ons; G, HDC

Wi t hi n 60 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Cor e Losses Desi gn Cal cul at i ons; G, HDC

SD- 06 Test Repor t s

Wi t hi n 30 cal endar days af t er t he compl et i on of t he t est :

Coi l Test Recor d; G, HDC

Cur r ent Tr ansf or mer Rout i ne Test Repor t ; I , HDC

Pr ot ot ype Coi l Vol t age Endur ance Test Repor t ; G, HDC

Pr oduct i on Run Coi l Vol t age Endur ance Test Repor t ; G, HDC

Di ssect i on and Exami nat i on Repor t ; G, HDC

Coi l Fact or y Test Repor t ; G, HDC

Spr i ng Type Fi l l er Mat er i al Test Repor t ; G, HDC

RTD Test Repor t ; I , HDC

Lami nat i on Test Repor t ; G, HDC

Rot or Pol e Fact or y Test Repor t ; ( Opt i onal ) G, HDC

Fi el d Wi ndi ng Fi nal Test Repor t ; G, HDC

SD- 08 Manuf act ur er ' s I nst r uct i ons

Wi t hi n 60 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Vol t age Endur ance Test Met hods; G, HDC

Coi l Fact or y Test Pr ocedur e; G, HDC

St at or Wi ndi ng I nst al l at i on Pr ocedur e; G, HDC

I nt er l ami nar I nsul at i on Test Pr ocedur e; G, HDC

I ni t i al Accept ance Test Pr ocedur es; G, HDC

Fi nal Accept ance Test Pr ocedur es; G, HDC

Gener at or Speci al Fi el d Test s Pr ocedur e; G, HDC

Lami nat i on Test Pr ocedur e; G, HDC

St at or Cor e Keybar s I nst al l at i on Pr ocedur e; G, HDC

PDA Test Repor t ; ( Opt i onal ) G, HDC

Wi t hi n 60 cal endar days af t er t he Gover nment has exer ci sed t he opt i on t o r ef ur bi sh t he r ot or pol es:

Rot or Pol e Removal and Rei nst al l at i on Pr ocedur e; ( Opt i onal ) G, HDC

Pol e Tr anspor t at i on Pr ocedur e; ( Opt i onal ) G, HDC

Fi el d Coi l Rei nsul at i on Pr ocedur e and Mat er i al s ; ( Opt i onal ) G, HDC

Fi el d Leads Rei nsul at i on Pr ocedur e; ( Opt i onal ) G, HDC

SD- 09 Manuf act ur er ' s Fi el d Repor t s

Wi t hi n 30 cal endar days af t er t he compl et i on of t he i nspect i on or t est :

St at or Fr ame I nspect i on Repor t ; G, HDC

St at or Cor e Fi nal Check Repor t ; G, HDC

I nt er l ami nar I nsul at i on Test Repor t ; G, HDC

St at or Wi ndi ng Fi nal I nspect i on Repor t ; G, HDC

Wi ndi ng I nst al l at i on Test Repor t ; G, HDC

Rot or I nspect i on Repor t ; G, HDC

I ni t i al Accept ance Test Repor t ; G, HDC

Fi nal Accept ance Test Repor t ; G, HDC

Gener at or Speci al Fi el d Test Repor t ; G, HDC

SD- 10 Oper at i on and Mai nt enance Dat a

Wi t hi n 120 cal endar days af t er r ecei pt of wr i t t en not i ce t o pr oceed ( NTP) wi t h t he r ewi nds:

Spar e Par t s Li st ; I , HDC

Wi t hi n 30 cal endar days af t er compl et i on of t he f i r st gener at or commissioning:

Gener at or Oper at i ons and Mai nt enance Manual ; G, HDC

1. 4 EXI STI NG GENERATOR I NFORMATI ON

1. 4. 1 Uni t I dent i f i cat i on and Namepl at e

McNar y St at i on Ser vi ce Uni t s ar e wat er cool ed, ver t i cal hydr o- gener at or s, manuf act ur ed and i nst al l ed by t he El ect r i c Machi ner y Company i n t he ear l y 1952. Gener at or r at i ngs, as def i ned by t he namepl at e st ampi ng i nf or mat i on, ar e as f ol l ows.

3, 750 kVA

0. 8 Power Fact or 4, 160 V 3-phase 60 Hz

277 RPM

1. 4. 2 Test Repor t Dat a

The f ol l owi ng i nf or mat i on i s f r om t he f i el d t est r epor t . The or i gi nal f i el d t est dat a i s at t ached at t he end of t hi s sect i on f or t he Cont r act or ' s information.

( b) Losses i n Ki l owat t s ( kW) .

( 1) Losses at r at ed vol t age and power f act or .

Per cent Load 25 50 75 100

Fr i ct i on & Wi ndage Loss ( Gener at or & Exci t er )

26.5 26.5 26.5 26.5

Cor e Loss 26.2 26.3 26.4 26.5

Ar mat ur e DC I ² R Loss ( 75° C)

2.46 9.76 22 39.1

Fi el d I ² R Loss ( 75° C) 9.9 14.1 18.9 24.8

St r ay - Load Loss 0.56 2.25 5.07 9 Exci t at i on ( & Rheost at ) Loss

3.2 3.8 5.5 5.5

Vol t age Regul at or

TOTAL LOSSES 68.82 82.71 103.37 131.4

( 2) Losses at r at ed vol t age and uni t y ( 1. 0) power f act or .

Per cent Load 25 50 75 100

Fr i ct i on & Wi ndage Loss ( Gener at or & Exci t er )

26.5 26.5 26.5 26.5

Cor e Loss 26.2 26.3 26.4 26.5

Ar mat ur e DC I ² R Loss ( 75° C)

2.46 9.76 22 39.1

Fi el d I ² R Loss ( 75° C) 5.5 6.75 8.75 10.7

St r ay - Load Loss 0.56 2.25 5.07 9 Exci t at i on ( & Rheost at ) Loss

2.85 2.95 3.1 3.3

Vol t age Regul at or

TOTAL LOSSES 64.12 74.51 91.22 115.1

1. 4. 3 Descr i pt i on of Gener at or

The gener at or ar e desi gned f or wye- connect i on of t he st at or wi ndi ngs wi t h each phase consi st i ng of t wo par al l el pat hs of 37 coi l s. The st at or cor e has 222 sl ot s, a bor e di amet er of appr oxi mat el y 207 i nches, and a hei ght of 17 i nches. The f i el d wi ndi ngs ar e compr i sed of 26 f i el d coi l s .

1. 4. 4 Fai l ur e Hi st or y

I n May 2017, t he St at i on Ser vi ce Uni t 01 exper i enced a l i ne t o gr ound f aul t . The uni t was t r i pped by one of t he 49 devi ce over - t emper at ur e swi t ches i n t he ai r housi ng, whi ch al so t r i gger ed t he di schar ge of t he CO2 f i r e ext i ngui shi ng syst em. I nvest i gat i on af t er t he uni t t r i p f ound t hat t he cur r ent t r ansf or mer secondar y f or t he gener at or pr ot ect i ve r el ay CTs wer e shor t - c i r cui t ed l eavi ng t he gener at or wi t hout r el ay pr ot ect i on. I ni t i al v i sual i nspect i ons of t he gener at or showed st at or wi ndi ng damage i n at l east one ar ea of l ower end t ur ns. I ni t i al st at or wi ndi ng I nsul at i on t est i ng wi t h t he neut r al wye opened showed al l t hr ee phases gr ounded.

A vi sual i nspect i on of t he St at i on Ser vi ce Uni t 1 was per f or med on 5 Jul y 2017. The l ower end of t he r ot or pol es appear ed t o be cont ami nat ed wi t h soot f r om t he f aul t . Two ar eas i n t he l ower end t ur ns of t he st at or wi ndi ng suf f er ed ext ensi ve damage.

Cur r ent l y, Uni t 1 i s out of ser vi ce.

1. 4. 5 I nspect i on by Cont r act or

The St at i on Ser v i ce gener at or Uni t 1 i s cur r ent l y out of ser vi ce due t o wi ndi ng f ai l ur e and i s avai l abl e f or i nspect i on bef or e wor k f or t hi s cont r act st ar t s. Coor di nat e t he i nspect i on schedul e and access r equi r ement s wi t h t he Cont r act i ng Of f i cer ( CO) . The Cont r act or i s r esponsi bl e f or obt ai ni ng and ver i f y i ng di mensi ons and ot her i nf or mat i on, i ncl udi ng i nf or mat i on cont ai ned i n t hi s speci f i cat i on, t hat may be r equi r ed t o desi gn r epl acement st at or wi ndi ngs and cor e l ami nat i ons. Take measur ement s on t he gener at or as necessar y t o ensur e t hat coi l s and mat er i al s suppl i ed under t hi s cont r act wi l l meet al l cont r act r equi r ement s. The Cont r act or i s r esponsi bl e f or devel opi ng t he necessar y i nf or mat i on r equi r ed f or desi gn. Br i ng any di scr epanci es bet ween i nf or mat i on gi ven i n t hi s document and i nf or mat i on devel oped t o t he at t ent i on of t he Gover nment bef or e pr oceedi ng.

1. 5 WARRANTY

The war r ant y per i od f or t he compl et e i nst al l ed wi ndi ngs i s t o be f i ve ( 5) year s af t er t he successf ul compl et i on of t est s and accept ance. The Cont r act or i s r esponsi bl e f or r epai r i ng or r epl aci ng any component f ai l i ng t o per f or m i t s f unct i on as speci f i ed and document ed at no addi t i onal cost t o t he Gover nment wi t hi n t he f i ve ( 5) year per i od. Respond t o t he Gover nment and per f or m an assessment of t he f ai l ur e wi t hi n f our ( 4) weeks of t he i nci dent . I ncl ude di sassembl y and r eassembl y suf f i c i ent t o make r epai r s, r epai r t o any sur r oundi ng gener at or equi pment as a r esul t of t he f ai l ur e, and any necessar y t est i ng t o conf i r m t he ef f i cacy of t he r epai r .

Repl ace any spar e par t s used dur i ng t he r epai r i n k i nd wi t hi n one year of t he compl et i on of t he r epai r . Submi t f or appr oval t he St at or Wi ndi ng War r ant y Det ai l s , t o i ncl ude dur at i on of war r ant y cover age and i t ems and l abor cover ed by t he war r ant y.

1. 6 DELI VERY AND HANDLI NG

I f t he Cont r act or chooses t o r ewi nd t he st at or wi ndi ng and r est ack t he st at or cor e i n t he f act or y, each gener at or shal l be di sassembl ed f or shi pment t o and f r om t he Cont r act or ' s f aci l i t y . The r ot or , i f r epai r s ar e needed, and st at or shal l be shi pped separ at el y. Bear i ngs shal l be wr apped wi t h oi l - i mpr egnat ed mat er i al t o pr ot ect t hem f r om moi st ur e ent r y. Al l smal l par t s or el ement s shal l be boxed. The ski d mount i ng and boxi ng shal l be done i n a manner whi ch wi l l pr event damage or di st or t i on t o t he st at or f r ame dur i ng l oadi ng, shi pment , unl oadi ng, i ndoor st or age, and subsequent handl i ng. Weat her pr oof cover s shal l be pr ovi ded t o pr ot ect t he gener at or component s dur i ng shi pment . Any eyebol t s, speci al s l i ngs, st r ongbox, or ot her devi ces used i n l oadi ng t he equi pment at t he Cont r act or ' s f ac i l i t y shal l be f ur ni shed f or unl oadi ng and handl i ng at t he dest i nat i on.

PART 2 PRODUCTS

2. 1 MATERIALS

Conf or m al l mat er i al s t o t he appl i cabl e speci f i cat i ons and st andar ds l i s t ed and t o t he addi t i onal r equi r ement s speci f i ed her ei n. Obt ai n appr oval f or t he i nt ended pur pose of any mat er i al s r equi r ed f or t he wor k, but not cover ed by t he speci f i cat i ons, pr i or t o t he mat er i al i ncor por at i on.

Ref er ence t o any equi pment , ar t i c l e, or cat al og number wi t hi n t hi s speci f i cat i on i s t o est abl i sh a st andar d of qual i t y and not i nt ended t o l i mi t compet i t i on.

2. 2 WI NDI NG RATI NG AND I NSULATI ON CLASS

Suppl y a st at or wi ndi ng r at ed f or cont i nuous oper at i on at 3, 750 kVA at 4, 160 vol t s. Pr ovi de st at or coi l s and wi ndi ng i nst al l at i on mat er i al s capabl e of oper at i on at Cl ass F t emper at ur e l i mi t s as def i ned i n I EEE C50. 12.

Desi gn and pr ovi de a st at or wi ndi ng such t hat t he wi ndi ng t emper at ur e r i se does not exceed 75° C above a cool er di schar ge ai r t emper at ur e of 40° C, when oper at ed at r at ed l oad.

2. 3 NAMEPLATE

Submi t f or appr oval t he namepl at e dr awi ng. I ncl ude det ai l s on mat er i al , di mensi ons, and ar r angement of i nf or mat i on on t he dr awi ng. Make t he nameplate s of cast , st amped or et ched br ass or st ai nl ess st eel s i mi l ar i n s i ze and t hi ckness t o t he or i gi nal namepl at es. I ncl ude t he f ol l owi ng i nf or mat i on on t he namepl at es:

( a) Wi ndi ng manuf act ur er ' s name

( b) Rat ed kVA

( c) Power f act or

( d) St at or cur r ent

( e) St at or t emper at ur e r i se

( f ) Dat e of r ewi nd

( g) Rat ed kV

( h) I nsul at i on c l ass

2. 4 STATOR COI LS

2. 4. 1 General

I ncor por at e moder n pr act i ce i n desi gn, mat er i al , and wor kmanshi p f or t he st at or coi l s manuf act ur ed under t hi s speci f i cat i on. Desi gn coi l s t o be t he har d, mul t i - t ur n t ype wi t h mi ni mi zed eddy cur r ent l oss. Use anneal ed copper , f r ee f r om spl i nt er s, f l aws, r ough spot s, or shor t r adi us bends f or t he st r ands. Tr ansposi t i on of t he st r ands shal l be made i nt er nal t o t he coi l s. Round al l f i ni shed out s i de edges of each coi l wi t h a mi ni mum r adi us of 1/ 16 i nch. For t he nar r ow si de of t he s l ot por t i on of each st at or coi l , pr ovi de a f l at bear i ng sur f ace of at l east 3/ 8 i nch. Do not cut or t ai l or any coi l l eads f or any par t i cul ar s l ot ; desi gn each coi l f or use i n any s l ot . Submi t t he f ol l owi ng f or appr oval :

(a) St at or Coi l Faci l i t y . The name, addr ess and qual i f i cat i on of t he st at or coi l f aci l i t y .

(b) Cr oss- Sect i onal Vi ew of St at or Coi l s . A cr oss- sect i onal v i ew of t he st at or coi l i n a st at or s l ot , descr i bi ng t he st r andi ng ar r angement , st r and di mensi ons, copper cr oss- sect i onal ar ea, st r and and t ur n i nsul at i on det ai l s ( i ncl udi ng i nsul at i ng mat er i al t ypes and t hi cknesses) , s l ot f i l l er s, wedgi ng det ai l s , and par t i al di schar ge suppr essi ve t r eat ment s. I ncl ude gr oundwal l i nsul at i on mat er i al s and t hi ckness on t he dr awi ng.

(c) Ext er i or Di mensi ons of St at or Coi l s . I ncl ude bendi ng r adi i , di mensi ons of s l ot pai nt and gr adi ng t ape on t he dr awi ng.

(d) Wi ndi ng Di agr am. A dr awi ng t hat shows t he t hr ee phases i n di f f er ent col or s and RTD l ocat i ons. I ncl ude a t abul ar l i s t i ng of t he wi ndi ng showi ng t he pr ogr essi on f r om l i ne end t o neut r al end f or al l par al l el s wi t h t he di agr am.

(e) St at or Coi l I nsul at i on Syst em. A descr i pt i on of t he st at or coi l i nsul at i on syst em, i ncl udi ng pr ocesses and mat er i al s empl oyed t o meet speci f i cat i on r equi r ement s. I ncl ude dat a sheet s f or mat er i al s used i n t he coi l const r uct i on.

( f ) St at or Coi l Connect i on. Dr awi ngs t o show t he coi l ext er nal connect i on.

(g) DC I ² R Copper Losses Desi gn Cal cul at i ons. Det ai l ed desi gn cal cul at i ons demonst r at i ng how t he st at or DC I ² R ( copper ) l osses ar e det er mi ned at 75° C. I l l ust r at e wi t h t he cal cul at i ons t he composi t i on of t he var i ous por t i ons of wi ndi ng c i r cui t r esi st ance, i ncl udi ng number of coi l s i n ser i es, par al l el connect i ons, end connect i ons, c i r cui t r i ngs, et c.

(h) St r ay Load Losses Desi gn Cal cul at i ons. Det ai l ed cal cul at i ons showi ng how t he st r ay l oad l oss i s det er mi ned.

(i) Maxi mum Temper at ur e Ri se. Maxi mum t emper at ur e r i se of t he wi ndi ng above 40° C ambi ent at r at ed l oad, vol t age, and power f act or .

(j) Temper at ur e Ri se Cal cul at i ons. Cal cul at ed st at or wi ndi ng t emper at ur e r i se as i ndi cat ed by embedded t emper at ur e det ect or s and cal cul at ed st at or wi ndi ng hot spot t emper at ur e at r at ed l oad, vol t age, and power f act or .