W912PM-15-R-0001-0002.pdf

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

Solicitation hereby amended to:

1. Add CLIN 0002AQ for tw o (2) 13.8kV High Resistance Grounding (HRG) Cabinets.

2. Extend the date and time for proposal submissions from 1/6/2015 at 2:00PM EST to 1/22/2015 at 2:00PM EST.

3. See the Technical Summary of Changes.

4. All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY 11-Dec-2014

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 W912PM-15-R-0001

X 9B. DATED (SEE ITEM 11)

04-Dec-2014

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 X is extended, 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

11-Dec-2014

CODE

U S ARMY CORPS OF ENGINEERS

69 DARLINGTON AVE. ATTN: KARRI MARES

WILMINGTON NC 28403

W912PM 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912PM-15-R-0001

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 1449 - CONTINUATION SHEET

SOLICITATION/CONTRACT FORM

The required response date/time has changed from 06-Jan-2015 02:00 PM to 22-Jan-2015 02:00 PM.

SUPPLIES OR SERVICES AND PRICES

SUBCLIN 0002AQ is added as follows:

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0002AQ 2 Each Design, Furnish and install two (2) 13.8kV High Resistance Grounding (HRG)

Cabinets.

FOB: Destination

NET AMT

INSPECTION AND ACCEPTANCE

The following Acceptance/Inspection Schedule was added for SUBCLIN 0002AQ:

INSPECT AT INSPECT BY ACCEPT AT ACCEPT BY

N/A N/A N/A Government

W912PM-15-R-0001

Amendment 0002

Technical Summary of Changes

01 22 00 – MEASUREMENT AND PAYMENT

Delete existing SECTION Pages 1 thru 8 in their entirety and replace with revised enclosed like-numbered Pages.

48 19 26 – AUTOMATIC VOLTAGE REGULATORS

Delete existing SECTION Pages 1 thru 36 in their entirety and replace with revised enclosed like-numbered Pages.

NOTE:

Text that is added or revised by this amendment is identified with and/or printed in bold AND identified with ***Amendment 0002***(beginning and ending of revision/addition).

The text changes may have necessitated reformatting of subsequent text or pages. If this is the case, those pages have also been issued as amended pages but are not underlined or bold text.

-- End of Summary of Changes- -

Encls As Stated

Switchgear Relocation, Governor Upgrade & W912PM-15-R-0001 AVR Upgrade, Philpott Reservoir Project

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 22 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.2 MEASUREMENT

1.2.1 General

1.2.2 Lot

1.3 PAYMENT

1.3.1 Base Line Items

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 22 00 Page 1 (Revised by Amendment No. 0002)

SECTION 01 22 00

MEASUREMENT AND PAYMENT

PART 1 GENERAL

1.1 GENERAL INFORMATION

In each instance, the contract price for a contract line item number (CLIN) will constitute full compensation as herein specified, as shown, or as otherwise approved. The contract price and payment will also constitute full compensation for all work incidental to completion of the CLIN, unless such work is otherwise specifically mentioned for separate payment under another CLIN. In the event any work is required by the specification sections or by the drawings and not specifically mentioned in the measurement and payment paragraphs separate or direct payment will not be made. All costs are therefore incidental to, and included in, the contract prices and payment for all CLINs listed in the price schedule.

Optional CLINs - Exercise of options. The Government may require the delivery of and/or work for the numbered line item(s) identified in the Price Schedule as an "Optional" item. The quantities for these items may be increased or decreased or the item(s) may not be used at all, at the discretion of the Government. The unit price of an optional item will remain unchanged whether the quantities are increased or decreased. The Government may exercise an option by written notice to the Contractor commencing from the date of contract award through the date the contract is closed, unless otherwise specified herein. If an option is exercised, the contract completion date will not be extended; however, with mutual agreement, the schedule of work may be modified.

1.2 MEASUREMENT

1.2.1 General

CLINs measured as a lump sum will be measured for payment as a complete job in the locations indicated. This measurement includes all incidental work and materials such as fasteners, electrical materials, and O&M manuals that are necessary to make a complete job. Unless the CLIN paragraph makes a specific exception of any item, incidental items will not be measured under any other CLIN, even though there is another listing for the work or material.

1.2.2 Lot

The measurement for items listed as "lot" indicate such items as spare parts consisting of a specific group of parts or materials identified in the specifications.

1.3 PAYMENT

Payment for all work specified, shown, or incidental to complete the work will be made as follows:

1.3.1 Base Line Items

Line Item No. 0001AA - Site Mobilization & De-mobilization

SECTION 01 22 00 Page 2

Payment for Mobilization will be paid for under Line Item No. 0001AA.

Price and Payment shall constitute full payment for mobilization of all materials, equipment, and labor required to accomplish the work.

Mobilization will be considered complete when Government has made the area available for the Contractor to commence work.

Payment for Demobilization will be paid for under Line Item No. 0001AA.

Price and Payment shall constitute full payment for demobilization, and will be considered complete when the Contractor has removed all construction equipment, cleaned the area, and restored the work area to “as-found” pre-contract conditions, unless otherwise approved.

Line Item No. 0001AB - Contractor-furnished Training of Government Personnel

Payment for Contractor-Furnished Training of Government Personnel will be paid for under Line Item No. 0001AB. Price and Payment shall constitute full payment for conducting a course in the theory, operation, and maintenance of the newly installed equipment for approximately 10 Government personnel, including training manuals, books and other materials to conduct the course. Training shall be conducted when the equipment that requires training is accepted.

Line Item No. 0001AC - Special Tools and Spare Parts

Payment will be made as a lump sum job under Line Item No. 0001AC. Payment shall include furnishing wrenches, tools, special equipment, and spare parts.

Line Item No. 0002AA - New Switchgear Building and Site Work

Payment to furnish materials and construct switchgear building and underground duct will be paid for under Line Item No. 0002AA. Price and Payment shall constitute full payment for furnish materials, labor and construct switchgear building, retaining wall, site work, and underground duct from the powerhouse to the new building, including HVAC system, lighting, convenience outlets, electrical panels, drainage and grounding, as shown in the contract drawings.

Line Item No. 0002AB - Design, furnish and install cable tray in the powerhouse

Payment to design, furnish and install cable trays in the powerhouse will be paid for under Line Item No. 0002AB. Price and Payment shall constitute full payment to design, furnish and install cable trays between duct entry point in the powerhouse to unit 1, unit 2, station service generator, 480V Motor Control Center (MCC), control board and station board and for conduit system between the new switchgear building and GSU transformer as shown in the drawings.

Line Item No. 0002AC - Design, furnish and install switchgear in the new switchgear building

Payment to design, furnish and install switchgear in the new switchgear building will be paid for under Line Item No. 0002AC. Price and Payment shall constitute full payment to design, furnish and install 13.8kV switchgear with five 36" wide sections, five 13.8kV breakers, two surge protection sets, potential transformers (PTs), current transformers (CTs), 13.8kV bus differential relay, station service transformer, 480V switchgear with one vertical section, three 480V breakers and local-remote control

SECTION 01 22 00 Page 3 panel as shown in the drawings, including all controls, cables, conduits, grounds and cable connections in the new switchgear building.

Line Item No. 0002AD - Remove and dispose of two (2) main unit neutral breakers and two (2) reactors

Payment to remove and dispose of two main unit neutral breakers and two reactors will be paid for under Line Item No. 0002AD. Price and Payment shall constitute full payment to remove and dispose of the two single phase 13.8kV air circuit breakers and two reactors as shown in the drawings including all controls and cables.

Line Item No. 0002AE - Design, furnish and install two (2) Main Units Surge Protection Cabinets

Payment to furnish and install two (2)13.8kV High Resistance Grounding (HRG) Cabinets will be paid for under Line Item No. 0002AE. Price and Payment shall constitute full payment to design, furnish and install the HRG's and cabinets for Unit 1 and 2 neutrals, including replacing all existing cables, installing new control wires to the generator relays as shown in the drawings and as described in SECTIONS 26 05 00 and 26 11 15.

Line Item No. 0002AF - Remove and dispose of 480V Switchgear and Station Service Transformer

Payment to remove and dispose 480V Switchgear and Station Service Transformer will be paid for under Line Item No. 0002AF. Price and Payment shall constitute full payment to remove and dispose of 480V MCC, two 480V air circuit breakers, reactor and station service transformer, including all controls, cables, conduits, grounds and floor repair.

Line Item No. 0002AG - Design, furnish and install 480V Motor Control Center

Payment to design, furnish and install 480V Motor Control Center will be paid for under Line Item No. 0002AG. Price and Payment shall constitute full payment to design, furnish and install the 480V Motor Control Center as shown in the drawings, including all controls, switches, metering, cables to existing loads and to the six(6) new 480V panels, conduits, grounds. Included in this line items are the control switches, metering and mimic line to be supplied and installed in the existing control board as shown in the drawings.

Line Item No. 0002AH - Design, furnish and install six (6) 480V Panels

Payment to design, furnish and install of six (6) 480V Panels will be paid for under Line Item No. 0002AH. Price and Payment shall constitute full payment to design, furnish and install six (6) 480V Panels as shown in the drawings, including all controls, cables to the existing loads or new combination starters, conduits, grounds.

Line Item No. 0002AJ - Design, furnish and install 480V Combination Starters

Payment to design, furnish and install 480V Combination Starters will be paid for under Line Item No. 0002AJ. Price and Payment shall constitute full payment to design, furnish and install 480V Combination Starters for existing loads supplied from the new 480V panels, including all controls, cables, conduits, grounds.

Line Item No. 0002AK - Perform System Testing and Commissioning

SECTION 01 22 00 Page 4

Payment to Perform System Testing and Commissioning will be paid for under Line Item No. 0002AK. Price and Payment shall constitute full payment for the work described in SECTION 26 08 01, which includes, as a minimum:

(1) Phasing tests

(2) Insulation Resistance Tests, Polarization Index Tests.

(3) High Potential Tests

(4) Calibrations

(5) Continuity Tests

(6) Point to point wiring checks.

(7) Functionality Tests

Line Item No. 0002AL - Remove and dispose of 13.8kV Switchgear, trays and cables

Payment to remove and dispose of 13.8kV trays, cables switchgear will be paid for under Line Item No. 0002AL. Price and Payment shall constitute full payment for removal and disposal the existing, 13.8kV cables and trays in the cable gallery, 13.8kV bus, insulators, four (4) 13.8kV air circuit breakers, CTs, PTs, surge protection, switchgear sections inner separation walls as shown in the drawings.

Line Item No. 0002AM - Perform Mechanical Demolition

Payment for Perform Mechanical Demolition will be paid for under Line Item No. 0002AM. Price and Payment shall constitute full payment for any mechanical equipment as required for the installation of new pipelines.

Line Item No. 0002AN - Concrete Removal and Disposal

Payment for Concrete Removal and Disposal will be paid for under Line Item No. 0002AN. Price and Payment shall constitute full payment for the labor, materials, and equipment required to complete concrete removal necessary to accommodate work indicated in SECTION 03 60 00.

Line Item No. 0002AP - Install of Line Relay enclosure

Payment to install one (1) Line Relay enclosure will be paid for under Line Item No. 0002AP. Price and Payment shall constitute full payment for the labor, materials, and equipment required to complete the installation of the government supplied Line Relay outdoor enclosure, removal of the existing line relays and their installation in the outdoor enclosure, with contractor supplied controls, cables, conduits, grounds.

***AMENDMENT 0002***

Line Item No. 0002AQ - Design, furnish and install two (2) 13.8kV High Resistance Grounding (HRG) Cabinets

Payment to furnish and install two (2) 13.8kV High Resistance Grounding (HRG) Cabinets will be paid for under Line Item No. 0002AQ. Price and Payment shall constitute full payment to design, furnish and install the HRG's and cabinets for Unit 1 and 2 neutrals, including replacing all

SECTION 01 22 00 Page 5 existing cables, installing new control wires to the generator relays as shown in the drawings and as described in SECTION 26 05 00 and 26 11 15.

***AMENDMENT 0002***

Line Item No. 0003AA - Furnish System Design Specifications

Payment for furnishing the Digital Governor System Design Specification will be made under Line Item No. 0003AA. Payment shall include all labor, equipment, and materials required to develop the design and furnish the System Design Specification in conformance with specification requirements. Payment will be made after the submittal has been approved by the Government (Action Code A or B). Section 48 19 00 of statement of work.

Line Item No. 0003AB - Remove and Dispose of Existing Governor Controls for Units 1 & 2

Payment for removal and disposal of existing governor controls for each of the two main units will be made under Line Item No. 0003AB. Payment shall include all equipment, operations, and transportation required to remove and dispose of the existing governor controls as described in these specifications and in accordance with all Federal, State, and local laws and regulations. Sections 02 41 19 and 48 19 00.

Line Item No. 0003AC - Furnish New Governor Controls and Accessories for Units 1 & 2

Payment for furnishing new governor controls and accessories for each of the two main units will be made under Line Item No. 0003AC. Payment shall include all labor, equipment, materials, and transportation required to deliver the new governor controls and accessories on site. Sections 26 00 00 and 48 19 00.

Line Item No. 0003AD - Install New Governor Controls and Accessories for Units 1 & 2

Payment for installing new governor controls and accessories for each of the two main units will be made under Line Item No. 0003AD. Payment shall include all labor and equipment required to install the governor controls and accessories and make the governor complete and operational. Sections 26 00 00 and 48 19 00.

Line Item No. 0003AE - Disassemble, Clean, Inspect, and Re-assemble Distributing Valves for Units 1 & 2

Payment for disassembling, cleaning, inspecting, and re-assembling distributing valves for each of the two main units will be made under Line Item No. 0003AE. Payment shall include all labor, equipment, materials, and operations required to disassemble, clean, inspect, and re-assemble valves and to prepare and submit a report on the findings. Section 41 24 26.00 26

Line Item No. 0003AF - Disassemble, Clean, Inspect, and Re-assemble Governor Oil Pumps for Units 1 & 2

Payment for disassembling, cleaning, inspecting, and re-assembling Governor Oil Pumps for each of the two main units will be made under Line Item No.

0003AF Payment shall include all labor, equipment, materials, and operations required to disassemble, clean, inspect, and re-assemble pumps

SECTION 01 22 00 Page 6 and to prepare and submit a report on the findings. Section 41 24 26.00 26

Line Item No. 0003AG - Disassemble, Clean, Inspect, and Re-assemble Wicket Gate Servomotors for Units 1 & 2

Payment for disassembling, cleaning, inspecting, and re-assembling wicket gate servomotors for each of the two main units will be made under Line Item No. 0003AG. Payment shall include all labor, equipment, materials, and operations required to disassemble, clean, inspect, and re-assemble the servomotors and to prepare and submit a report on the findings. Section 41 24 26.00 26

Line Item No. 0003AH - Disassemble, Clean, Inspect, Rewind, and Re-assemble Governor Oil Pump Motors for Units 1 & 2

Payment for disassembling, cleaning, inspecting, rewinding, and re-assembling governor oil pump motors for each of the two main units will be made under Line Item No. 0003AH. Payment shall include all labor, equipment, materials, and operations required to disassemble, clean, inspect, rewind, and re-assemble motors and to prepare and submit a report on the findings. Section 41 24 26.00 26

Line Item No. 0003AJ - Design, Provide, and Install Self Lubricated Bearings and Stainless Steel Counter Surfaces for Units 1 & 2

Payment for designing, providing, and installing new self lubricated bearings for each of the two main units will be made under Line Item No.

00203AJ. Payment shall include all labor, equipment, materials, and operations required to design, provide, install greaseless bushings and stainless steel counter surfaces. Section 41 24 26.00 26

Line Item No. 0003AK - Design, Provide, and Install Stainless Steel Pins for Units 1 & 2

Payment for designing, providing, and installing new stainless steel pins for each of the two main units will be made under Line Item No. 0003AK.

Payment shall include all labor, equipment, materials, and operations required to design, provide, install the stainless steel pins. Section 41 24 26.00 26

Line Item No. 0003AL - Design, Provide, and Install Offline Kidney Loop Filtration System and Heater for Units 1 & 2

Payment for designing, providing, and installing new offline kidney loop filtration systems and heaters for each of the two main units will be made under Line Item No. 0003AL. Payment shall include all labor, equipment, materials, and operations required to design, provide, install the offline kidney loop filtration systems and heaters. Section 41 24 26.00 26

Line Item No. 0003AM - Provide Gate Distributing Valve Plunger and Bushing and Pilot Piston for Units 1 & 2 .

Replacement of this equipment is at the option of the Contracting Officer.

Payment for providing gate distributing valve plunger and bushing and pilot pistons for each of the two main units will be made under optional Line Item No. 000AM5. Payment shall include all labor, equipment, materials, and operations required to provide distributing valve plungers and bushings and pilot pistons. Section 41 24 26.00 26

SECTION 01 22 00 Page 7

Line Item No. 0004AA - Design, manufacture, test, and deliver AVRs and Appurtenances.

Payment will be made on a unit basis under Line Item No. 0004AA. Payment shall include all materials, labor, and equipment needed to manufacture and test the AVRs.

Line Item No. 0004AB - Disassemble, remove, and dispose of existing voltage regulators.

Payment will be made on a unit basis under Line Item No. 0004AB. Payment shall include all materials, labor, and equipment to disassemble, remove, and dispose of existing excitation systems.

Line Item No. 0004AC - Install and test AVRs and appurtenances; and deliver and install external wiring, cabling, and conduits.

Payment will be made on a unit basis under Line Item No. 0004AC. Payment shall include all materials, labor, and equipment needed to install and test the AVRs and appurtenances; and deliver and install external wiring, cabling, and conduits.

Line Item No. 0004AD - Perform special factory tests.

Payment will be made as a lump sum job under Line Item No. 0004AD. Payment shall include all materials, labor, and equipment to complete the special factory tests.

Line Item No. 0004AE - Perform Special Field Tests.

Payment will be made as a lump sum job under Line Item No. 0004AE.

Payment shall include all materials, labor, and equipment to complete the special field tests.

Line Item No. 0004AF - Model Validation Testing and Reports.

Payment will be made as a lump sum job under Line Item No. 0004AF after approval of the model validation test reports. Payment shall include all work in accordance with paragraph 3.5.5 of Section 48 19 26.

Line Item No. 0004AG - Concrete Removal and Repair.

Payment will be made as a lump sum job under Line Item No. 004AG. Payment shall include all concrete demolition and repair work, including furnishing and installing new terrazzo tile.

PART 2 PRODUCTS

(NOT USED)

PART 3 EXECUTION

(NOT USED)

-- End of Section --

SECTION 01 22 00 Page 8

SECTION TABLE OF CONTENTS

DIVISION 48 - ELECTRICAL POWER GENERATION

SECTION 48 19 26

AUTOMATIC VOLTAGE REGULATORS

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.1.1 Scope of Work

1.1.2 Description of Equipment

1.1.3 Generator Characteristic Data

1.2 REFERENCES

1.3 SUBMITTALS

1.4 GOVERNMENT EQUIPMENT INTERFACE

1.4.1 DC Voltage Source Control

1.4.2 DC Voltage Source - Field Flashing

1.4.3 AC Voltage Source - Lighting

1.4.4 Potential Transformers

1.4.5 Current Transformers

1.4.6 Switchboard Contacts

1.4.7 Hazardous Materials

PART 2 PRODUCTS

2.1 MATERIALS

2.2 AUTOMATIC VOLTAGE REGULATOR DESCRIPTION

2.2.1 General

2.2.2 Protection Against Stray Currents and RF Interference

2.2.3 Surge Withstand Capability

2.2.4 Overspeed Protection

2.2.5 Power Requirements

2.3 EXCITATION SYSTEM PERFORMANCE CHARACTERISTICS

2.3.1 General

2.3.2 System Characteristics

2.3.3 Control System Features

2.3.3.1 General

2.3.3.2 Automatic and Manual Modes

2.3.3.3 Operation Sequence

2.3.4 Diagnostics

2.3.5 Excitation System Models

2.4 EXCITATION SYSTEM EQUIPMENT

2.4.1 General

2.4.1.1 Equipment to be Included

2.4.1.2 Auxiliary Equipment to be Included

2.4.1.3 Parts Lists

2.4.1.4 Adaptation to Plant

2.4.1.5 Minimum Requirements from Standards

2.4.1.6 Electronic Equipment Components

2.4.1.7 Digital Control Systems

2.4.2 Power Supply

2.4.2.1 Generator 13.8 kV Bus Tap

2.4.2.2 Current Limiting Fuses

2.4.2.3 15 kV Conductors

2.4.3 Power Potential Transforme

2.4.3.1 General

SECTION 48 19 26 Page 1

2.4.3.2 Transformer Cubicle

2.4.3.3 Temperature Indication

2.4.3.4 Current Transformers and Metering

2.4.3.5 AC Conductors Between PPT and Rectifier Supply Breaker

2.4.4 Rectifier Supply Breaker

2.4.5 Rectifier Assembly

2.4.5.1 General

2.4.5.2 Rectifier Protective Circuitry

2.4.6 DC Conductors Between AVR and Main Exciter Field

2.4.7 Voltage Regulator

2.4.7.1 General

2.4.7.2 Voltage Regulator Characteristics

2.4.7.3 Automatic Regulator

2.4.7.4 Automatic Regulator Exciter Voltage Adjuster

2.4.7.5 Manual Regulato

2.4.7.6 Manual Regulator Exciter Voltage Adjuste

2.4.7.7 Automatic/Manual Regulator Transfer

2.4.7.8 Automatic Fail Over Control

2.4.8 Reactive Droop Compensation and Line Drop Compensation

2.4.9 Connections

2.4.10 Copper Bars and Rods

2.4.11 Insulated Wire and Cable

2.4.11.1 General

2.4.11.2 Governing Standards

2.4.11.3 Inspection and Tests

2.4.11.4 Packaging and Marking

2.4.12 Internal Panel Wire, 600 V and Below

2.4.13 Conduit

2.4.14 Direct Current Connections

2.4.15 Auxiliary and Interposing Relays

2.4.16 Protective Relays

2.4.17 Control and Instrument Switches

2.4.18 Indicating Instruments

2.4.19 Exciter Display

2.4.19.1 General

2.4.19.2 Exciter Operation Display

2.4.19.3 Fault Display

2.4.19.4 Trouble Alarm Relay

2.4.20 Indicating Lights

2.4.21 Transient Recorder

2.4.22 Flat Cable

2.4.23 Terminal Blocks

2.4.24 Nameplates

2.4.24.1 Device Nameplates

2.4.24.2 Equipment Nameplates

2.5 EXCITATION SYSTEM PROTECTION

2.5.1 General

2.5.2 Overexcitation Limiter

2.5.3 Underexcitation Limiter

2.5.4 Volts/Hertz Limiter

2.5.5 Emergency Shutdown

2.6 SPECIAL TOOLS

2.7 Speed Switches

2.8 SPARE PARTS

PART 3 EXECUTION

3.1 ARRANGEMENT AND ASSEMBLY

3.2 INTERNAL WIRING

SECTION 48 19 26 Page 2

3.3 FACTORY ASSEMBLY

3.4 FACTORY TESTS

3.4.1 General

3.4.2 AVR Tests

3.4.2.1 Routine Tests

3.4.2.2 Special Tests

3.4.3 Power Potential Transformer Tests

3.4.3.1 Routine Tests

3.4.3.2 Special Tests

3.5 FIELD TESTS

3.5.1 General

3.5.2 Test Scheduling

3.5.3 Operational Tests

3.5.4 Special Field Test

3.5.5 Model Validation Testing

3.6 EQUIPMENT FIELD INSTALLATION

3.6.1 Equipment Removal

3.6.1.1 General

3.6.1.2 Equipment To Be Removed

3.6.1.3 Cable and Conduit

3.6.2 Equipment Installation

3.6.2.1 General

3.6.2.2 Equipment to Be Installed

3.6.3 Wiring, Cables, and Terminations

3.6.3.1 General

3.6.3.2 Installation

3.6.3.3 Equipment Wiring

3.6.3.4 Terminations

3.6.3.5 Identification

3.6.3.6 Installation Tests

3.6.4 Conduits, Fittings, and Accessories

3.7 SUPERVISOR

3.8 SERVICES OF COMMISSIONING ENGINEER

3.8.1 General

3.8.2 Duties

3.9 CONTRACTOR-FURNISHED TRAINING

3.9.1 General

3.9.2 Operator Training

3.9.3 Technician Training

3.10 OPERATION AND MAINTENANCE MANUALS

-- End of Section Table of Contents --

SECTION 48 19 26 Page 3

SECTION 48 19 26

AUTOMATIC VOLTAGE REGULATORS

PART 1 GENERAL

1.1 GENERAL INFORMATION

1.1.1 Scope of Work

This section covers the work necessary to design; to prepare drawings, data, and installation instructions; to manufacture; to shop test; to prepare and load for shipment; to deliver f.o.b. destination; and to install, make completely operational, and test two automatic voltage regulators (AVRs), with all necessary appurtenances, including power potential transformers, at the Philpott Reservoir Project. The work also includes removing the existing voltage regulators for these units and modifying the existing control panels.

1.1.2 Description of Equipment

The three-phase, salient pole, vertical, synchronous generators have the following characteristics and ratings:

Generator:

Manufacturer General Electric Year of Commissioning 1953 Rating (kVA) 7500 Power Factor 0.90 Rating (kW) 6750 Voltage (V) 13,800 Current (A) 314 Frequency (Hz) 60 Speed (r/min) 277 Field Voltage (V) 125 Field Current (A) 400 Prime Mover Hydro-turbine

Main Exciter:

Type GE Type EV, shunt wound, rotating Rating (kW) 55 Voltage (V) 125 Current (A) 440

Pilot Exciter:

Type: GE Type MP, compound wound, rotating Rating (kW) 3 Voltage (V) 125 Current (A) 24

1.1.3 Generator Characteristic Data

A copy of the existing generator field saturatuon curve is included in these specification at the end of this section. A copy of the generator capability curve is not available. Other pertinent generator characteristics are:

SECTION 48 19 26 Page 4

Field Current (A) 404

Rated Load rated pf 7080

115% rated load, rated pf 7600

Generator Field resistance (ohms at 75 C) 0.2266

Main Exciter field Resistance (ohms at 75 C) 0.021

Generator Field Time Constant Not Available

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)

ANSI C39.1 (1981; R 1992) Requirements for Electrical Analog Indicating Instruments

ASME INTERNATIONAL (ASME)

ASME B1.1 (2003) Unified Inch Screw Threads (UN and UNR Thread Form)

ASME B1.20.1 (1983; R 2001) Pipe Threads, General Purpose (inch)

ASTM INTERNATIONAL (ASTM)

ASTM B 187 (2003) Seamless Copper Bus Bars, Rod, and Shapes

ASTM B 188 (2002) Seamless Copper Bus Pipe and Tube

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE C37.20.1 (2002) Metal Enclosed Low-Voltage Power Circuit Breaker Switchgear

IEEE C37.90 (1994) Relays and Relay Systems Associated with Electric Power Apparatus

IEEE C37.90.1 (2002) Surge Withstand Capability (SWC) Tests for Relays and Relay Systems Associated with Electric Power Apparatus

IEEE C57.12.01 (1998) General Requirements for Dry-Type Distribution and Power Transformers Including Those with Solid-Cast and/or Resin-Encapsulated Windings

IEEE C57.12.91 (2001) Test Code for Dry-Type Distribution and Power Transformers

IEEE C57.110 (2004) Recommended Practice for

SECTION 48 19 26 Page 5

Establishing Transformer Capability When Supplying Nonsinusoidal Load Currents

IEEE 48 (1996; R 2003) Standard Test Procedures and Requirements for Alternating-Current Cable Terminations 2.5 kV Through 765 kV

IEEE 383 (1974; R 2003) Type Test of Class 1E Electric Cables, Field Splices and Connections for Nuclear Power Generating Stations

IEEE 421.1 (1996) Definitions for Excitation Systems for Synchronous Machines

IEEE 421.2 (1990) Guide for Identification, Testing, and Evaluation of the Dynamic Performance of Excitation Control Systems

IEEE 421.3 (1997; R 2004) High-Potential Test Requirements for Excitation Systems for Synchronous Machines.

IEEE 421.5 (1992) Recommended Practice for Excitation System Models for Power System Studies

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA))

NEMA 250 (2003) Enclosures for Electrical Equipment (1000 Volts Maximum)

NEMA WC 57 (1995; R 2004) Control Cables

NEMA WC 70 (2001) Non-Shielded Power Cables Rated 2000 Volts or less for the Distribution of Electrical Energy

NEMA WC 74 (2000) 5-46 kV Shielded Power Cable for Use in the Transmission and Distribution of Electric Energy

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2005) National Electrical Code

UNDERWRITERS LABORATORIES (UL)

UL 489 (2002; R 2004) Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures

U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)

29 CFR 1910 Occupational Safety and Health Standards

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only or as

SECTION 48 19 26 Page 6 otherwise designated. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. All procedures prepared for this contract under this technical section shall be given a unique document number that can be used for identification in correspondence. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Within 60 calendar days after date of award:

Outline drawings; G Outline drawings, including final weight, center of gravity, and overall dimensions.

Arrangement drawings; G The installation drawings of the excitation equipment, including the AVR, power potential transformer, conduit, and 13.8 kV bus tap, shall show the arrangement of all excitation equipment in their locations in the powerhouse, with existing adjacent equipment shown for orientation and fit. Details of the interface between the existing and new equipment shall be included.

Schematic diagrams; G

Wiring diagrams; G Wiring diagrams shall be made as seen by an observer of the actual equipment arrangement, and space shall be provided for addition of devices where mounting space exists on the structure. Outgoing cable circuits shall be shown.

Within 90 calendar days after date of award:

Other drawings Additional drawings as required demonstrating that all parts of the equipment being furnished conform to the requirements of the specifications.

Software logic drawings

Nameplate schedule; G

Parts List; G

Spare Parts List; G

AVR Communications Documentation Documentation needed for programming the existing plant control system for communicating desired information with the AVR.

Fuse Ratings; G Manufacturer's data for PPT high side current limiting fuses.

Factory routine test procedure; G An outline and description of the test methods and equipment to be employed in the routine factory tests, including test values and rejection criteria and a list of instruments and equipment to be used.

SECTION 48 19 26 Page 7

Factory special test procedure; G An outline and description of the test methods and equipment to be employed in the special factory tests, including test values and rejection criteria and a list of instruments and equipment to be used.

Power potential transformer test procedures; G An outline and description of the test methods and equipment to be employed in the routine and special factory tests, including test values and rejection criteria and a list of instruments and equipment to be used.

Within 120 calendar days after date of award:

Excitation equipment removal procedure; G The procedure shall include a detailed description of the methods and equipment to be used for removal of the equipment per paragraph 3.6.1.2.

Installation procedure; G The procedure shall include a detailed description of the methods and equipment to be used for each operation, and the sequence of operations. Include detailed interconnection drawings, conduit routing, conduit and cable schedule, elevation views, modifications to existing equipment, etc.

Commissioning Procedures; G An outline and description of the operational tests to be performed for commissioning the new excitation system.

Special field tests procedure; G An outline and description of the test methods and equipment to be employed in the special field tests including test values and rejection criteria.

Model Validation Test Procedures; G

Wiring Installation Test Procedures An outline and description of the test methods and equipment to be employed for the wiring installation tests defined in paragraph 3.6.3.6, including test values and rejection criteria.

Contractor-furnished training; G Instructor background and qualifications, course outline, course material and subject matter for the theory, and operation and maintenance of the excitation system.

SD-05 Design Data

Within 120 calendar days after date of award:

Excitation equipment models; G

SD-06 Test Reports

Within 10 calendar days after completion of the test:

Factory Routine Tests; G The test report shall include descriptions of the tests performed, SECTION 48 19 26 Page 8 test results with tolerances, sample calculations, and the formulas used in determining the results of the tests.

Factory Special Tests; G The test report shall include descriptions of the tests performed, test results with tolerances, sample calculations, and the formulas used in determining the results of the tests.

Power Potential Transformer Test Reports; G Test reports shall include descriptions of the tests performed, test results with tolerances, sample calculations, and the formulas used in determining the results of the tests.

Commissioning Report; G A commissioning report in accordance with the approved procedures shall be submitted within 10 days after commissioning.

Special Field Tests; G The test reports shall be submitted within 10 days after the tests are made.

Model Validation Test Report; G A draft report shall be submitted within 30 days after completion of the model validation tests. A final report shall be submitted within 15 days after receipt of review comments on the draft report.

SD-10 Operation and Maintenance Data

Operation and Maintenance Manuals; G See Section 01 30 60

1.4 GOVERNMENT EQUIPMENT INTERFACE

1.4.1 DC Voltage Source Control

Power from a properly protected, ungrounded, nominal 125 Vdc source, which has a range of 105 Vdc to 139 Vdc, for use in controlling the elements of the excitation and regulating systems.

1.4.2 DC Voltage Source - Field Flashing

Nominal 125 Vdc power for field flashing, not to exceed 10 A for 10 seconds.

1.4.3 AC Voltage Source - Lighting

120 Vac single-phase power for excitation system convenience receptacles and light fixtues.

1.4.4 Potential Transformers

Two potential transformers (PTs), rated 14,400/120 V, are available for each unit. The PT's are wired between Phase A and B and between Phase B and C. No other information is available on the potential.

1.4.5 Current Transformers

One current transformer (CT) rated 400:5 is available for each unit. No other information is available on the current transformers. Should the new

SECTION 48 19 26 Page 9 voltage regulator need more than one current transformer, the existing metering CTs may be used if approved by the Contracting Officer. The Contractor should provide a calculation of the burden on the CTs with the new equipment in series if requesting to use the metering CTs.

1.4.6 Switchboard Contacts

Contacts from the generator lockout relay is available, as well as other control, protective, and relaying devices that are located on existing switchboards.

1.4.7 Hazardous Materials

Control cables within the existing excitation cubicle may have insulation that contains asbestos. If found, contact the contracting officer and if necessary comply with the applicable requirements of SECTION 01 57 20.

PART 2 PRODUCTS

2.1 MATERIALS

All materials shall conform to the applicable requirements of these specifications. The classification and grade of materials incorporated in the work shall be in accordance with the specifications designated herein.

Substitution of materials from those specified shall not be made except on specific prior written approval. Any materials required in the work not covered by specifications shall be submitted for approval for the purpose intended. The use of asbestos or polychlorinated biphenyl's (PCB's) shall not be permitted. Where stiffness of the part is a requirement, approval will not be granted of any material, which if accepted, would decrease the stiffness of the part.

2.2 AUTOMATIC VOLTAGE REGULATOR DESCRIPTION

2.2.1 General

The automatic voltage regulator (AVR) shall be a potential source rectifier, including the power potential transformer. The AVR shall be microprocessor (digital) controlled and be capable of continuous operation with powerhouse environmental conditions of 40 °C and 95 percent relative humidity (non-condensing). The equipment provided under these specifications shall be a type having an established reputation of two years or more of satisfactory and reliable service, designed for voltage regulation of hydroelectric generators rated 5 MVA and larger. The operation and performance of the equipment furnished shall be guaranteed by the manufacturer to meet the requirements of these specifications. The AVR for all units shall be, insofar as possible, identical in design and construction. The requirements of this specification for the design, drawings, manufacture, factory test, and delivery of AVRs apply to all units unless otherwise specified herein.

2.2.2 Protection Against Stray Currents and RF Interference

The AVR shall be adequately protected against stray currents and voltage surges. The AVR shall be designed and tested to be insensitive to radiated high-frequency interference such as that coupled from portable radio transmitters (typically 10-watt output in the 158-173 MHz band) operating within 1 meter of the AVR.

SECTION 48 19 26 Page 10

2.2.3 Surge Withstand Capability

The AVR shall be designed and tested for surge withstand capability in accordance with IEEE C37.90.1.

2.2.4 Overspeed Protection

The AVR shall be capable of uninterrupted operation during a full-load rejection and sustain no damage. The AVR shall also be capable of withstanding sustained full generator overspeed, 315 rpm, without damage.

The excitation system may shut down for this full overspeed condition.

2.2.5 Power Requirements

The design shall be such that the only requirements for station power are for:

a. 125 Vdc for field flashing, as specified in paragraph 1.4.2,

b. 120 Vac (non-preferred) for lighting, convenience outlets, and heaters,

c. 125 Vdc control power for operation of control relays and operation of all remote inputs to the AVR including voltage raise/lower, automatic/manual control switching, power circuit breaker control, remote indication, annunciation, and protection.

2.3 EXCITATION SYSTEM PERFORMANCE CHARACTERISTICS

2.3.1 General

The AVR shall be capable of supplying, without exceeding its nameplate continuous load rating, ample field excitation to the rotating exciter for the generator to deliver 115 percent rated kVA at rated power factor, rated frequency, and 105% voltage. In addition, it shall be capable of supplying ample field excitation to the rotating exciter in order for the generator to deliver a potential future uprate of 12,000 kVA at rated power factor, rated frequency, and 105 percent voltage. The AVR shall be capable of supplying ceiling voltage for a minimum of 10 seconds without overheating the AVR components. This short-time overload capability shall be verified by factory tests.

2.3.2 System Characteristics

The excitation system shall be capable of the following performance:

No-Load Ceiling Voltage +/-180 Vdc

Source Voltage 100 percent rated

The AVR shall be capable of achieving the no-load ceiling voltage at the specified source voltage.

2.3.3 Control System Features

2.3.3.1 General

The AVR shall be designed and have sufficient capacity for complete automatic operation for startup, normal operation, and shutdown of the

SECTION 48 19 26 Page 11 generating units. Upon loss of external dc control power, the AVR shall continue normal operation from back-up control power supply fed from the generator leads with annunciation of the failure of the primary power supply. Indicating lights, or conduction monitor, shall be provided to indicate and locate thyristor or diode failure.

2.3.3.2 Automatic and Manual Modes

The AVR shall have the ability to be operated in either the manual or automatic modes as selected remotely using a manual/automatic mode switch.

The manual mode is used when the automatic mode has failed and during testing. In either mode, control of the generator terminal voltage is accomplished by varying the amount of current in the field windings.

2.3.3.3 Operation Sequence

The sequence for normal operation in automatic mode shall be as follows:

a. When a generator unit start is initiated and the machine reaches 95 percent rated speed, the AVR shall initiate field flashing, which shall raise the machine terminal voltage to a preset value below rated terminal volts. The automatic voltage regulator shall then raise the terminal voltage to the normal preset voltage.

b. After the automatic voltage regulator has caused the generator terminal voltage to reach that level prescribed by the automatic voltage regulator setpoint for speed-no-load (SNL), the regulator shall be capable of remote adjustment, either manually or through action of the automatic synchronizer, to achieve the desired voltage setpoint necessary to put the unit on line.

c. Operation of the automatic voltage regulator shall be as described in paragraph 2.4.7. Provisions shall be incorporated for the automatic reduction of excitation to a level safe for continuous operation after a predetermined time at ceiling or at abnormally high levels. If the automatic regulator fails to reduce the excitation to this lower level within the allotted time, complete shutdown shall occur.

d. During regular generator shutdown, the regulator shall automatically reduce the manual and automatic voltage regulator setpoints to the generator rated voltage, no-load level.

2.3.4 Diagnostics

Diagnostics and self-tests shall be automatically performed on power-up of the voltage regulator to verify that the total hardware and software is fully operational. After power-up, the digital computer shall continuously verify that it is performing all of its tasks without error. Both on-line and off-line diagnostics shall be provided as follows:

a. On-Line Diagnostics. Digital control systems shall include software to continuously monitor hardware and software performance in real time with minimum interference with normal system functions. The performance measurements shall be in milliseconds.

b. Off-Line Diagnostics. The off-line diagnostics shall permit, to the maximum extent possible, the diagnosis and isolation of any hardware fault without requiring additional test equipment. Test points shall provide for insertions of a sinusoidal signal and for

SECTION 48 19 26 Page 12 measuring the resulting output. Provision for a complete operational test of the voltage regulator, without energizing the generator, shall be included. All functional units shall be field repairable to the extent that replacement of a failed subassembly or module shall restore the unit to normal operating condition.

c. Terminal Interface and Software. The Contractor shall provide one laptop computer and proven software for AVR workstation terminal interface, including the following:

(1) System hardware, including the peripherals, communications, display, internal fixed and CD or DVD with read/write capability disk drives, and all required cabling.

(2) Digital application software, including the operating system, data base management software, compilers, and other utility programs. If specialized software is required it shall be approved prior to use. Access to the software shall be password protected. Power failures shall not cause loss of the software.

Software logic drawings shall also be included.

(3) All equipment required for software editing, including configuration of protective features and changing of setpoints, at the job-site.

(4) Integration of all Contractor-supplied hardware and software.

2.3.5 Excitation System Models

The Contractor shall provide excitation equipment models and data for use in transient stability and longer-term dynamics simulation programs. The models and data shall be consistent with IEEE 421.5 and the following IEEE committee papers:

a. IEEE Digital Excitation Task Force, "Computer Models for Representation of Digital-Based Excitation Systems," IEEE/PES paper 96

WM 031-5 EC.

b. IEEE Excitation Limiters Task Force, "Recommended Models for Overexcitation Limiting Devices," IEEE Transactions on Energy Conversion, Vol. 10, No. 4, pp. 706-712, December 1995.

c. IEEE Excitation Limiters Task Force, "Underexcitation Limiter Models for Power System Stability Studies," IEEE Transactions on Energy Conversion, Vol. 10, No 3 pp. 524-531, September 1995.

Models and data are required for control functions including limiters, but not for protective functions that operate for excitation equipment failures. If equipment supplied is not compatible with IEEE models, special models must be provided with enough detail for unambiguous programming in simulation programs.

2.4 EXCITATION SYSTEM EQUIPMENT

2.4.1 General

2.4.1.1 Equipment to be Included

The AVR shall be in accordance with the approved outline drawings, SECTION 48 19 26 Page 13 schematic diagrams, wiring diagrams, and other drawings as required, and shall be complete and include but not be limited to the following: current limiting fuses, power-potential transformer (PPT), ac supply breaker, rectifier assembly, all auxiliaries necessary for satisfactory operation of the regulator such as control transformers, potentiometers, thyristors, transistors, operational amplifiers, resistors, rheostats, reactors, shunts, contactors and relays, and spare parts. The AVR shall be mounted in the existing exciter cubicles and shall be complete in every detail. It shall be ready for operation upon completion of installation and wiring.

2.4.1.2 Auxiliary Equipment to be Included

All additional external items required for proper operation and control shall be provided. All additional external items required for proper operation and control such as control…