Attachment_ CRCBF-05 Instrument Transformer SECTION 1000.pdf

SECTION 1000

33 71 26 16 TND

Coupling Capacitors and Coupling Capacitor Voltage Transformers

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SECTION 33 71 26.16 – COUPLING CAPACITORS AND COUPLING CAPACITOR VOLTAGE

TRANSFORMERS

PART 1 - GENERAL

1.01 SUMMARY:

A. This Section includes the individual specifications and requirements for substation coupling capacitors and coupling capacitor voltage transformers (CCVT) to be furnished by this contract. Quantities as indicated on the Drawings.

B. Erection and assembly required at the jobsite will be performed by others.

C. Items furnished under this Section shall comply with the requirements of Division 01.

D. Acceptable manufacturers are listed in PART 2. Other manufacturers than those listed may be employed with the approval of the Owner and if the item to be furnished conforms to this Specification.

1.02 REFERENCE STANDARDS:

A. Design, construct, test, and assemble all equipment and materials in conformance with the latest revisions and supplements of all applicable NEMA, IEEE, ASTM and OSHA standards including, but not limited to, the following:

1. Institute of Electrical and Electronics Engineers (IEEE):

a. C2 - National Electrical Safety Code.

b. C57.13 - Requirements for Instrument Transformers.

c. C57.13.2 - Conformance Test Procedures for Instrument Transformers.

d. C57.13.3 - Guide for Grounding of Instrument Transformer Secondary Circuits and

Cases.

e. C57.19.00 - General Requirements and Test Procedure for Power Apparatus

Bushings.

f. C57.19.01 - Performance Characteristics and Dimensions for Outdoor Apparatus

Bushings.

g. C57.98 - Guide for Transformer Impulse Tests.

h. C93.1 - Requirements for Power Line Carrier Coupling Capacitors and Coupling

Capacitor Voltage Transformers.

2. National Electrical Manufacturers Association (NEMA):

a. EI 21.2 - Instrument Transformers for Revenue Metering (125-kV BIL through 350-kV BIL).

3. American Society for Testing and Materials (ASTM):

a. A6 - Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling.

b. A108 - Steel Bars, Carbon and Alloy, Cold Finished.

c. A123 - Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products.

d. A143 - Safeguarding Against Embrittlement of Hot-Dip Galvanized Structural Steel

Products and Procedure for Detecting Embrittlement.

e. A153 - Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

f. A370 - Test Methods and Definitions for Mechanical Testing of Steel Products.

g. A394 - Steel Transmission Tower Bolts, Zinc-Coated and Bare.

h. B8 - Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft.

i. B188 - Seamless Copper Bus Pipe and Tube.

j. B211 - Aluminum and Aluminum-Alloy Bars, Rods, and Wire.

k. B232 - Concentric-Lay-Stranded Aluminum Conductors, Coated Steel-Reinforced

(ACSR).

l. B236 - Aluminum Bars for Electrical Purposes (Bus Bars).

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m. B317 - Aluminum-Alloy Extruded Bar, Rod, Tube, Pipe, and Structural Profiles for Electrical Purposes (Bus Conductors).

4. Occupational Safety and Health Act (OSHA).

1.03 EXPERIENCE:

1. The manufacturer of each item of equipment or material furnished shall be regularly engaged in the fabrication of the item and it shall have an acceptable history of satisfactory, reliable service in outdoor substation use for a period of at least three years under comparable environmental conditions.

2. Newly developed equipment with less than three years actual service will be considered from established manufacturers only if it has been adequately tested, meets the requirements of this contract, and is approved by the Owner.

1.04 COMPLIANCE SUBMITTAL:

A. Submit as specified in Division 01.

B. For the Boulder Flats Switching Station, furnish the following types of drawings:

1. Furnish Drawings necessary for design, erection, installation, and operation of all equipment and materials furnished including, but not limited to, the following:

a. Complete drawings and descriptive bulletins for installation, adjustment, testing, maintenance, and operation of all equipment including bus weldments, connectors, insulators, corona fittings, etc.

b. General outline, nameplate, and internal wiring drawings of all equipment.

c. Schematic diagrams showing all external electrical connection terminal numbers.

d. Bushing and insulator outline drawings.

e. Drawings showing additional detail if requested by the Owner or otherwise required for installation and maintenance.

2. Standard drawings of equipment which do not indicate clearly the exact size, model number, and optional items to be furnished will be returned to the Supplier for this information before review by the Owner.

PART 2 - EQUIPMENT

2.01 CCVTS:

A. Ratings:

1. Nominal system voltage (kV): 230kV

2. Primary line to ground voltage (kV): 138kV

3. Basic impulse level (kV): 900kV

4. Frequency (Hz): 60Hz

5. Capacitance (micro-F): Specified by manufacturer

6. Ratio: 1200/2000:1

7. Secondary voltage ratings (V): 115V & 67V

B. Type and Design:

1. Base-mounted with potential adjusting unit mounted in the capacitor base or in separate weatherproof housing.

2. Furnish all standard accessories, including mounting provisions, line, and ground terminals.

3. Color of bushing porcelain shall be ANSI 70 gray.

4. The secondary windings shall include [two] [three] outputs rated as follows:

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a. Winding X: 1000VA at 0.15% Accuracy Class.

b. Winding Y: 1000VA at 0.15% Accuracy Class.

C. Acceptable Manufacturers:

1. ABB Power T&D Company, Inc.

2. Trench Electric.

3. Ritz.

4. GE

PART 3 - EXECUTION

3.01 FIELD SERVICES:

A. Correction of errors, discrepancies, or omissions shall be made immediately upon notification from the Resident Engineer in order to prevent delay of construction. All corrections resulting from errors, discrepancies, shipping damage, etc., approved by the Resident Engineer to avoid delay in construction and required for the installation and proper use of equipment shall be paid for by the SUPPLIER.

3.02 SHIPMENT:

A. All coupling capacitors and CCVTs shall be delivered to the Site in open top trucks or trailers protected by tarpaulin to facilitate unloading by crane.

END OF SECTION 33 71 26.16