Technical_Specifications_5_1_2015.pdf

ATTACHMENT A

Technical Specifications for

Mead Substation, Stages 15 & 16

Transformers

(CC & CCVT)

May 1, 2015

SECTION 1: Requirements

1. PLACE OF DELIVERY

The item numbers 001, 002, 003, 004, 005, 006, 007, 008, 009 and 010 shall be delivered F.O.B.

(Free On Board) to the destination within consignee’s premises, to the following location:

Contractor is required to unload the equipment to the pad or to a specific location at the substation, as directed by the Government.

ITEM NUMBER DESTINATION (CITY/COUNTY/STATE

001, 002, 003, 004, 005, 006, 007, 008, 009 and 010

Mead Substation Clark County, NV 89005 South of Boulder City, NV (detailed directions given upon award)

2. SHIPPING NOTIFICATION

Notification of intended shipment shall be given at least 2 weeks prior to shipment from the factory.

The truck driver shall notify the below listed Western Area Power Administration field delivery contact person when the material leaves the factory and again 48 hours prior to arrival at the final delivery destination. The Contractor shall plan to deliver the material Monday through Thursday (8:00 a.m. to 2:00 p.m.)

ITEM NUMBER NAME/ADDRESS/PHONE NO./FAX NO. OF CONTACT

PERSON

001, 002, 003, 004, 005, 006, 007, 008, 009 and 010

Western Area Power Administration ATTN: Rick Schuler, G5622 615 South 43rd Avenue Phoenix, AZ 85009-5313 Email: Schuler@wapa.gov Telephone (602) 605-2487 Fax (602) 605-2630

3. TIME OF DELIVERY

The Government requires delivery of all of Items 001, 002, 003, 004, 005, 006, 007, 008, 009 and 010 material and equipment to be made according to the following delivery schedule:

DELIVERY TIMES:

NO SOONER THAN October 1, 2015 NO LATER THAN: December 1 , 2015

4. DRAWINGS AND DATA:

1) General: Drawings and technical data required to be furnished by the Contractor shall be in English, with dimensions in feet and inches, weight in pounds, and volume in cubic feet or cubic inches.

The drawings and data shall be complete and accurate in their content. Originals and copies shall be legible. Drawings shall be prepared using drafting equipment, shall be drawn to scale, and shall have neat lettering. Freehand sketches will not be accepted. Western will require 30 calendar days to answer correspondence pertaining to each submittal of data or drawings.

Schematic and wiring diagrams shall have graphical symbols and device function numbers conforming with the latest applicable standards of ANSI Y32.2/IEEE 315, ANSI/IEEE 315A, and ANSI C37.2.

Reproducible prints shall be of such quality as to permit clear, sharp, legible prints or other reproductions to be made by direct contact methods. Electronic versions of the drawings shall also be provided on a CD and via email with the drawings available in both AutoCAD.dwg and Acrobat (pdf) formats.

Western shall have the right to require the Contractor to make any changes in the drawings and data that may be necessary to show the equipment furnished conforms to the requirements of the specifications and Western’s equipment standards. The design of electrical equipment shall be the responsibility of the Contractor and Western assumes no responsibility to approve or review drawings and data that are submitted. Western’s review of the Contractor’s drawings shall not relieve the Contractor of meeting requirements or for correctness of drawings. Revised drawings shall show revision dates and all changes and revisions circled on the drawings. Drawings shall not exceed 22 inches in height by 36 inches in width. All drawings and reports shall clearly show Western’s contract number and the name of the substation where the equipment will be installed.

Table-A summarizes the drawing and data requirements.

TABLE-A

DRAWINGS AND DATA SCHEDULE

Type of Drawings and Data

Section One

Paragraph

Delivery Time (Calendar Days)

Type of Material

Distribution For Each Bid Item

(Paragraph 4.2) A B C

Installation drawings and data including seismic qualification report

.3) Within 60 days after date of contract award

Blackline Prints, Reports, PDF 1 1 0

Informational drawings and data .4) Within 90 days after date of contract award Blackline Prints, AutoCAD, PDF 1 1 0

Final drawings .5)(a) 21 days prior to shipment

Bond Drawing Prints, AutoCAD, and

PDF

1 1 0

Parts identification lists and bill of material .5)(b) 21 days prior to shipment Lists, PDF and hard copy 1 4 1

Manufacturer’s operation and maintenance instructions

.5)(c) 21 days prior to shipment

Books, PDF and hard copy 1 4 1

Oil PCB certification .5)(d) Prior to shipment of equipment

Certified Data, PDF and hard copy

1 4 1

Equipment test reports .5)(e) 7 days prior to shipment of equipment

Certified Data, PDF and hard copy

1 4 1

2) DISTRIBUTION OF DRAWINGS AND DATA: The mailing and street addresses for distribution of Table-A Drawings and Data Schedule as shown above are as follows:

A - Distribution (Corporate Services Office)

Mailing Address

ATTN: Susan Bonfiglio, A7910 P.O. Box 281213 12155 West Alameda Parkway Lakewood, CO 80228-8213

B - Distribution (Field Office) ‡

Mailing Address

ATTN: Rick Schuler, G5622 615 South 43rd Ave.

Phoenix, AZ 85009

C - Distribution (Ship with equipment)

3) INSTALLATION DRAWINGS AND DATA: Installation drawings and data are required for preparing installation drawings for foundations and for Government-furnished equipment support structures. Drawings and data required include those in the following list that are applicable:

(a) Equipment or equipment and associated support structure outlines, dimensions, and weights.

(b) Base type, dimensions, and mounting details.

(c) Location, types, sizes, and projections required embedded anchor bolts.

(d) Orientation of equipment and a complete anchor bolt setting plan.

(e) Seismic qualification report, for equipment specifications requiring a seismic qualification report.

4) INFORMATIONAL DRAWINGS AND DATA: The Contractor shall furnish informational drawings and data for electrical equipment supplied by the Contractor. The required quantities, delivery times, and destinations are listed in Table-A.

The drawings and data shall include equipment outlines, details, schematic diagrams, wiring diagrams and instructions. The drawings and data shall specifically verify conformance with equipment requirements and shall be sufficiently complete to allow preparation of final design and installation drawings including wiring diagrams.

5) FINAL DRAWINGS AND DATA: At least 21 days before shipping the equipment, the

Contractor shall furnish to the destinations listed in Table-A, the drawings and data required in the following subparagraphs:

(a) Final Drawings: The drawings shall show all changes, and revision dates therefor, made up to the time the drawings and data are furnished. Final drawings shall be furnished, rolled or flat, not folded. Drawings shall be printed on quality bond paper; be full-size; and be clear, sharp, and legible. Final drawings shall be furnished and shall include the following:

Outlines of equipment including support structures when furnished.

Schematic diagrams.

Nameplates.

(b) Sets of Parts Identification Lists or Bills of Materials: Each part shall be assigned an identifying number which can be used for ordering replacements, and a reference number that locates the part on the appropriate outline drawing,

(c) Sets of manufacturer’s instructions covering installation, operation, and maintenance repair for the electrical equipment above and for each device appurtenant to the equipment. A print of each final drawing as required above shall be included with the instructions. The instruction manual shall be furnished as a printed copy, on CD (or DVD), and as an Acrobat PDF sent via email.

(d) Insulating Liquid Certification: Certification shall be furnished showing that insulating liquids used in equipment do not contain more than 2 parts per million of polychlorinated biphenyls.

(e) Test Reports: Two weeks after completion of tests required on equipment, the

Contractor shall furnish certified copies of test reports, performance curves, and data.

Any equipment that does not successfully pass the testing requirements will be rejected. The reports shall be sent to the destinations listed in Table-A. Test reports shall be furnished as hard copies and Acrobat PDFs which shall be sent via email.

6) RIGHT TO USE THE CONTRACTOR’S DRAWINGS: Western reserves the right to use, reproduce in whole or in part, to distribute, and to reuse any and all such drawings, whether copyrighted or not, in connection with the following:

(a) Installation, maintenance, replacement, and repair of the articles to be furnished under the specifications and these standards.

(b) Making any and all such drawings and reproductions thereof available to subsequent bidders and the Contractors, where necessary for fabricating and furnishing articles connected with or dependent upon, information shown on the drawings and duplicating the drawings to be furnished hereunder.

The depositing of all such drawings with Western shall constitute a license to Western to use said drawings in the manner hereinabove stated.

SECTION 2: Coupling Capacitor Voltage Transformers Part 1: Technical Specifications

1.1 GENERAL: Except as stated herein the coupling capacitor voltage transformers (CCVT’s) shall be in accordance with the latest applicable ANSI C93.1 and NEMA standards. The CCVT’s shall be for base mounting and suitable for connections to high-voltage power circuits between line and ground. Only new equipment of current manufacture shall be furnished.

1.2. EQUIPMENT DESCRIPTION: The coupling capacitor voltage transformers shall have the following ratings and features: Items 001 and 002 shall be furnished with a support structure.

Bid Item Number 001 and 002

Nominal System Voltage (kV) 230 Maximum System Voltage (kV) 245

Basic Impulse Insulation Level (kV) 1050

Performance Reference Voltage (kV) 138

Primary to Secondary Ratios 1,200/2,000:1 and 1,200/2,000:1

ANSI Accuracy Rating 0.3% M, W, X, Y, Z

Output Rating (minimum VA) 200

Mounting Base

Associated support structure (Bid Items 006 and 007) provided for each coupling capacitor voltage transformer shall be 96 inches in height and hot-dipped galvanized if made of steel. Tubular steel supports, if furnished, shall be galvanized internally and externally.

Coupling capacitors voltage transformers and associated support structures shall be qualified to operate under the following service conditions:

Ambient Temperatures:

Maximum .............................................................................................................................. +55°C Maximum 24-Hour Average .................................................................................................. +45°C Minimum ................................................................................................................................ -20°C

Elevation:

Above Mean Sea Level .................................................................................. less than 3,300 Feet

*ASCE-7 Wind Load:

Minimum Basic Wind Speed ....................................................................................... 90 mph Importance Factor ............................................................................................................ 1.15

*IEEE 693 Seismic Qualification:

Performance level .................................................................................................... Moderate

*Wind and seismic loads are non-simultaneous

SECTION 2: Coupling Capacitor Voltage Transformers PART TWO: General Specifications

2.1 INTRODUCTION: In addition to the Description/Specifications that specifies ratings and features, coupling capacitor voltage transformers shall be furnished in accordance with the applicable requirements of this specification.

2.2 MATERIAL AND SPECIFICATIONS:

1. BUSHINGS AND PORCELAINS: Porcelains shall be wet process, homogeneous, and free from cavities or other flaws. The glazing shall be uniform in color and free from blisters, burns, and other defects. The color of the porcelain shall be gray.

Porcelain parts of each coupling capacitor voltage transformer shall be of one piece when rated below 450-kV BIL.

When rated at 450-kV BIL and above, porcelain parts of each coupling capacitor voltage transformer may be constructed of one piece or of multiple parts provided the multiple parts are assembled by one of the following methods:

(a) By flanged segments;

(b) By placing firing material in the joints between the segments and the entire porcelain part fired in one piece; or

(c) By securely holding the parts together with a clamping device through the centerline of the bushing. The joint must be at right angles to the longitudinal centerline of the bushing if this method is used.

2. CONSTRUCTION: The oil-filled part of oil-filled type CCVT’s shall be completely factory sealed to prevent breathing and absorption of moisture. The base housing shall be of weatherproof construction.

COUPLING CAPACITOR VOLTAGE TRANSFORMER: The coupling capacitor voltage transformer shall consist of factory-adjusted elements mounted in the base housing of CCVT’s. The burden watts, burden power factor, voltage ratio, and phase angle shall be factory adjusted.

3. SECONDARIES: Each coupling capacitor voltage transformer shall have two electrically separate secondaries, each capable of supplying voltage at both marked ratios.

4. SAFETY DEVICES:

(a) Potential Grounding Switch: Provide a potential grounding switch between the capacitor divider intermediate voltage circuit and ground. The switch shall be operable by a hook stick from ground elevation without opening the base housing of the coupling capacitor voltage transformer.

(b) Ground Terminal: Provide on the base of the CCVT’s a ground terminal, suitable for connecting from No. 2 AWG up to No. 500-kcmil copper cable.

(c) Terminals: Line terminals shall be NEMA standard line 4-hole terminal pad conforming to the requirements of NEMA CC1.

6. NAMEPLATE: The nameplate shall be furnished and made of stainless steel. The CCVT ratings and information prescribed by ANSI shall be included on the nameplate which is either etched or stamped into the metal to provide a permanent record which will not fade in the sunlight or fade due to aging.

7. SECONDARY TERMINAL BOX: Secondary circuits wiring shall be brought to a terminal box at the base of the CCVT’S where terminal blocks are provided so that the inter-connection of internal and external wiring of secondary circuits can be made. The terminal box shall be weatherproof design to keep moisture out and have a minimum of two 1 ½-inch NPT conduit hubs to allow installation of conduit to the terminal box.

8. INSULATING OIL: The insulation oil shall be the manufacturer’s standard product. The oil shall not contain PCB. The unit shall be permanently marked and certification furnished to certify that there are no more than 2 parts per million PCB present when a unit is delivered to Western.

2.3 TESTS: Each coupling capacitor voltage transformer shall be tested in accordance with

ANSI C93.1. Test instrument requirements shall be in accordance with ANSI C39.1 for

0.25 percent accuracy.

1. PRODUCTION TESTS: Perform the following production tests on each coupling capacitor voltage transformer:

(a) Capacitance and dissipation factor.

(b) Dielectric.

(c) Accuracy.

(d) Polarity.

(e) Protective gap setting.

2.4 PAINTING: CCVT’s shall be painted by the manufacturer’s standard ANSI 70 (gray), cleaning and shop-applied permanent paint system. The paint system shall provide a minimum of 10 years corrosion–free protection.

2.5 SEISMIC QUALIFICATION: When seismic qualification is required, data and requirements shall be provided in accordance with the latest IEEE 693. The seismic qualification, required to be shown on metal tags attached to the equipment, must also be shown on the nameplates. The data required to be shown on the metal tag and the nameplate is described in IEEE 693-05, Annex A.8.

A seismic report is not required for the low seismic performance level.

If a support structure is provided with the specified equipment, the support structure and the equipment shall be considered as one entity for the purpose of seismic testing. The support structure and the specified equipment (or their equal counterparts) must be tested together. The support structures for the coupling capacitor voltage transformers as described in these specifications must be equal in size and shape to the support structure tested in the seismic report unless data can be provided showing that alternate structures meet the seismic requirements

SECTION 3: Current Transformers PART ONE: Technical Specifications

1.1 GENERAL: The current transformers shall be furnished in accordance with the description/specifications in this solicitation. Only new equipment of current manufacture shall be furnished.

1.2 DESCRIPTION: The current transformers shall be outdoor, 60 Hz, single-phase, wound type, shall be furnished with associated support structures and shall have the following ratings and features:

Item No. 003, 004 and 005 Nominal System Voltage (kV) 230

Basic Impulse Level (kV) 1050 Rated Primary and Secondary Currents (Amps)

2000:5

ANSI Accuracy Class 0.15%

Burden 0.15B1.8

Accuracy Range 4.0 amps to 4000 amps

Continuous Thermal Current Rating Factor at 30°C Ambient Temperature

2.0

Type Oil-Filled

Associated support structures (Bid Items 008, 009 and 010) provided for each current transformer shall be 96 inches in height and hot-dip galvanized if made of steel. Tubular steel supports, if furnished, shall be galvanized internally and externally.

Current transformers and associated support structures shall be qualified to operate under the following service conditions:

Ambient Temperatures:

Maximum ...................................................................................................................... +55°C Maximum 24-Hour Average .......................................................................................... +45°C Minimum ........................................................................................................................ -20°C

Elevation:

Above Mean Sea Level ........................................................................... less than 3,300 feet

*ASCE-7 Wind Load:

Minimum Basic Wind Speed ....................................................................................... 90 mph Importance Factor ............................................................................................................ 1.15

*IEEE 693 Seismic Qualification:

Performance Level ................................................................................................... Moderate

*Wind and seismic loads are non-simultaneous

SECTION 3: Current Transformers PART TWO: General Specifications

2.1 GENERAL: Current transformers shall be in accordance with this specification and applicable

ANSI C57.13 and NEMA. In the event of contradictory requirement, the requirements of these specifications shall prevail. Wound-type transformers shall be for base mounting. Double-ratio current transformers may be of the series-parallel primary or tapped-secondary type. If tapped-secondary-type is furnished, the transformer shall be capable of meeting specified accuracy requirements when operating from either the full secondary winding or the tap position. Wound-type current transformers (other than bar-type primary) shall be equipped with primary bypass devices for protecting the windings from high-voltage surges.

Bushing current transformers shall be multi-ratio type. Turns between any two taps shall be uniformly distributed along the entire core and arranged so that every 20 or 40 turns are fully distributed.

Only new equipment of current manufacture shall be furnished.

2.2 MATERIAL AND SPECIFICATIONS:

1. THERMAL AND MECHANICAL RATINGS: The short time thermal and mechanical current ratings of wound-type current transformers, in accordance with American National Standard, shall be not less than specified. For transformers with series-parallel primary these ratings shall apply to the series connection.

2. BUSHING AND PORCELAINS: Porcelains shall be wet process, homogeneous, and free from cavities or other flaws. The glazing shall be uniform in color and free from blisters, burns, and other defects. The color of the porcelain shall be gray.

Porcelain parts of each current transformer shall be of one piece when rated at or below

1050-kV BIL.

When rated above 1050-kV BIL, porcelain parts of each current transformer may be constructed of one piece or of multiple parts provided the multiple parts are assembled by one of the following methods:

(a) By flanged segments;

(b) By placing firing material in the joints between the segments and the entire porcelain part fired in one piece; or

(c) By securely holding the parts together with a clamping device through the centerline of the bushing. The joint must be at right angles to the longitudinal centerline of the bushing if this method is used.

3. CONSTRUCTION: The current transformers shall be constructed of a non-tracking insulation such as molded butyl rubber or molded epoxy resin suitable for outdoor use or shall be of the oil-filled type as specified. Current transformers shall be completely factory sealed to prevent breathing and absorption of moisture. Oil expansion and pressure relief shall be accomplished by the use of a stainless steel diaphragm assembly. The active part of the unit shall be located above the porcelain in an aluminum head housing.

Current transformers of the series-parallel primary type shall be designed and constructed so the series-parallel connections of the primary windings can be changed external to the case without opening or disturbing the main case.

Expansion tanks external to the main tanks will not be acceptable.

4. ACCESSORIES: Liquid-filled current transformers shall be provided with drain valves or plugs and with liquid-level gauges or indicators. Glass through which oil can be exposed to sunlight shall be capable of filtering out those sunrays that cause oil deterioration.

5. SERVICE CONDITIONS: Seismic, wind, and unusual temperature or elevation conditions shall be as specified.

6. INSULATING LIQUID: The insulating liquid shall be the manufacturer’s standard product.

The liquid shall not contain PCB. Each current transformer unit shall be permanently marked and certification furnished to certify that there are no more than 2 parts per million PCB present in the insulating liquid when the unit is delivered to Western.

7. TERMINALS: Line terminals shall be NEMA standard line 4-hole terminal pad conforming to the requirements of NEMA CC1. A grounding terminal shall be provided which is suitable for connecting from No. 2 AWG up to 500 kcmil copper cable.

8. POLARITY MARKERS: The polarity shall be shown on the equipment and applicable drawings for the primary and secondary circuits of the CT’S.

9. NAMEPLATE: The nameplate shall be furnished and made of stainless steel. The CT ratings and information prescribed by ANSI shall be included on the nameplate which is either etched or stamped into the metal to provide a permanent record which will not fade in the sunlight or fade due to aging.

10. SECONDARY TERMINAL BOX: Secondary circuits wiring shall be brought to a terminal box at the base of the CT’S. The terminal box shall be weatherproof design to keep moisture out and have a minimum of three knockouts for 1 ½-inch NPT conduit hubs to allow installation of conduit to the terminal box. A short-circuiting type terminal block shall be provided which can short the CT secondary wiring inside the terminal box and prevent open circuits on the CT secondary wiring

2.3 TESTS: Each current transformer shall be tested in accordance with ANSI C57.13. Test instrument requirements shall be in accordance with ANSI C39.1 for 0.25 percent accuracy.

1. DIELECTRIC TEST:

Applied potential at 50 Hz for 72 seconds or 60 Hz for 60 seconds.

Induced potential.

2. MECHANICAL THERMAL RATINGS: Mechanical short-circuit and thermal rating tests shall be performed in accordance with ANSI C57.13 if certifications confirming the requirements of the ratings are not available for current transformers of the same type and design required by these specifications. Verification of the thermal rating by calculation (in accordance with ANSI C57.13, paragraph 8.6.2) will be accepted in lieu of testing.

3. STANDARD APPLICATION DATA AT 60 HZ: Except as modified herein, standard application data shall be furnished in accordance with ANSI C57.13, Section 6.10. Typical curves and data for ratio-correction-factor and phase-angle data and curves for the metering accuracy type current transformers will be acceptable if prepared from actual test performed on identical transformers. The manufacture shall certify the data and shall furnish it in both tabulated and curve form. If double-secondary transformers are furnished, the same tests and data are required for each secondary.

4. IMPULSE TESTS ON PRIMARY WINDINGS: Each current transformer shall be tested in accordance with ANSI C57.13 paragraph 8.8.5. Certified impulse test reports will be accepted if they were prepared from actual tests performed on identical transformers.

If impulse tests are required, a Government inspector shall witness them.

5. SEISMIC QUALIFICATION: When seismic qualification is required, data and requirements shall be provided in accordance with the latest IEEE 693. The seismic qualification, required to be shown on metal tags attached to the equipment, must also be shown on the nameplates. The data required to be shown on the metal tag and the nameplate is described in IEEE 693-05, Annex A.8. A seismic report is not required for the low seismic performance level.

If a support structure is provided with the specified equipment, the support structure and the equipment shall be considered as one entity for the purpose of seismic testing. The support structure and the specified equipment (or their equal counterparts) must be tested together.

The support structures for the coupling capacitor voltage transformers as described in these specifications must be equal in size and shape to the support structure tested in the seismic report unless data can be provided showing that alternate structures meet the seismic requirements.

2.4 PAINTING: After fabrication, the current transformers shall be painted ANSI 70 (gray) in accordance with manufacture’s standard cleaning and painting system. The cleaning and painting system shall provide a minimum of 10 years corrosion-free protection.