Revised Drawing G-003.pdf

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®of Engineers

US Army Corps

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NAMEPLATE DATA:

TANK AND CONSTRUCTION:

ACCESSORIES:

BUSHINGS:

INSULATING OIL:

∙ NAPTHENIC BASE - ASTM D 3487 TYPE II; 0.3% BY MASS OF OXIDATION INHIBITOR

SEPARATE CONTROL AND POWER CABINETS:

SPARE PARTS:

FACTORY ASSEMBLY AND PAINT:

FACTORY ACCEPTANCE TESTS (F.A.T.):

REQUIREMENTS SUMMARY SHEET

OLD HICKORY DAM 69 KV GSU TRANSFORMERS

(4) COMPLETELY ASSEMBLED AND WITNESSING OF FACTORY ACCEPTANCE TESTS

(3) COMPLETED CORE/COIL ASSEMBLY, BUT PRIOR TO TANKING

(2) AFTER COMPLETION OF WINDINGS BUT PRIOR TO LANDING ON CORE

(1) DESIGN REVIEW MEETING

∙ INSPECTIONS: GOVERNMENT INSPECTIONS PERFORMED DURING

FOR ONE WEEK PRIOR TO OIL FILLING.

∙ INTERIOR PAINT: PRIMER COAT, OIL-RESISTANT FINISH COAT - WHITE. ALLOW TO CURE

SLIP COATING.

STAINLESS STEEL CABINETS, SHALL REMAIN UNPAINTED. COVER TO RECEIVE A NON-

(MUNSELL 5BG 7/0.4 HIGH-GLOSS). CORROSION RESISTANT SURFACES, AND

∙ EXTERIOR PAINT: PRIMER COAT, EPOXY BASE COAT, POLYURETHANE TOP COAT

MATCH-MARKED FOR EASE OF REASSEMBLY.

∙ ASSEMBLY: TRANSFORMER TO BE FULLY ASSEMBLED, WITH REMOVABLE COMPONENTS

SURGE ARRESTERS:

GROUND PAD.

TO DISCHARGE COUNTERS, AND FROM THE DISCHARGE COUNTERS TO A

∙ GROUNDING: #4/0 AWG INSULATED GROUNDING CONDUCTORS FROM ARRESTERS

∙ MOUNTING: REMOVABLE BRACKETS ON TOP OF TRANSFORMER

∙ RATINGS: 48 KV MCOV; 60 KV DUTY-CYCLE

G-003

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∙ SFRA TEST SHIPPING BUSHING: 2.5 KV CLASS, 45 KV BIL, 100 AMP

∙ CORE GROUNDS: 2.5 KV CLASS, 45 KV BIL, 100 AMP

(TWO 200:5 CT, C400 RELAYING ACCURACY)

∙ NEUTRAL (H0): 25 KV CLASS, 150KV BIL, 200 AMP, COMPOSITE EXTERIOR WITH RIS) CONDENSER CORE DESIGN

FOR THE TRANSFORMER TEMPERATURE MONITOR SYSTEM)

CONTAMINATION, 125 ºC TEMPERATURE RISE RATING (BUSHING CURRENT TRANSFORMERS AS REQUIRED

∙ PRIMARY WINDING (X): 25 KV CLASS, 150 KV BIL, 5,000 AMP, PORCELAIN CONSTRUCTION, LOW CORONA BULK-TYPE, LIGHT

(PROVISIONS FOR FUTURE INSTALLATION OF TWO MRCT)

RESIN-IMPREGNATED SYNTHETIC (RIS)CONDENSER CORE DESIGN

∙ SECONDARY WINDING (H): 230KV CLASS, 900 KV BIL, 1,200 AMP, COMPOSITE EXTERIOR WITH

∙ FREQUENCY: 60 HZ

∙ MAXIMUM LOAD LOSSES AT 69 KV: 90 KW

∙ MAXIMUM NO-LOAD LOSSES AT 69 KV: 180 KW

∙ MAXIMUM SOUND LEVEL (ONAF)AT 69 KV: 68 DB

∙ OIL PRESERVATION SYSTEM: NITROGEN GAS BLANKETED

∙ TEMPERATURE RISE: 65 ºC

5 TAPS; 2 @ +2.5%, 2 @ -2.5% OF SELECTED NOMINALDETC 2:

NOMINAL TAP SELECTOR 161 OR 69 KVDETC 1:

∙ SECONDARY WINDING (H) DETC(S):

∙ IMPEDANCE: 7.5 % (H-X, 69kV)7.5 - 12% (H-X, 161 kV)

∙ PHASING: THREE-PHASE

∙ BIL LEVELS, KV: 650 (H) / 110 (X) / 150 (H0)

∙ VOLTAGE RATINGS: 161,000 Y x 69,000 Y (H) - 13,200 DELTA (X)

∙ KVA RATING: 75,000 / 100,000

∙ COOLING CLASS: ONAN/ONAF

∙ TYPE: CLASS II GSU POWER TRANSFORMER

VERTICAL-DRAFT.COOLING FANS:∙

HOT-DIP GALVANIZED.RADIATORS:∙

CONSTRUCTION.

ORIENTED STEEL. MAXIMUM DESIGN FLUX DENSITY OF 1.75 TESLA. STEP-LAP

LAMINATIONS MAXIMUM THICKNESS OF 0.270MM, COLD-ROLLED, GRAIN-CORE:∙

COMPONENTS.

SEISMIC CALCULATIONS REQUIRED FOR MAIN TANK AND ALL MAJORSEISMIC:∙

DESIGN LOADS FOR EACH EYE SHALL BE TWO TIMES THE ACTUAL LOAD.LIFTING EYES:∙

DESIGNED FOR PAD MOUNTING WITH SEISMIC WELDING TO STEEL PLATES.BASE:∙

CAGE AND LOCKABLE LADDER GUARD, POWDERCOATED YELLOW.

FIXED STEEL LADDER WITH WALK-THRU HANDRAIL ACCESS, SAFETYACCESS LADDER:∙

ANCHOR POST.

LUG, DBI-SALA MODEL 8517412, DESIGNED FOR USE WITH THE DBI-SALA FALL ARREST

QTY 2 UNI-ANCHOR PLATE ANDPORTABLE FALL ARREST ANCHOR POST MOUNTING PLATE:∙

STAINLESS STEEL BALL-TYPEVALVES:∙

CROSS-SECTION.

O-RING GASKETS SHALL NOT BE USED FOR GASKET GROOVES OF RECTANGULAR

EXCEPTION THAT THE LOW-VOLTAGE BUSHINGS GASKETS WILL BE VITON.

NITRILE NBR (BUNA-N), DURO 50-70, 25% COMPRESSION, WITH THEGASKETS:∙

24-INCH DIAMETER (MINUMUM ONE)MAN-HOLE:∙

∙ SURGE ARRESTER DISCHARGE COUNTERS (BOWTHORPE SC13)

∙ PORTABLE FALL ARREST SYSTEM ANCHOR POST WITH DAVIT ARM (DBI-SALA, MODEL 8516691)

∙ ELECTRONIC PRESSURE MONITOR, WITH THREE SENSORS ON MAIN TANK (QUALITROL 930)

WINDING TEMPERATURE MEASUREMENT (QUALITROL QTMS)

∙ TRANSFORMER TEMPERATURE MONITOR WITH COOLING CONTROLS AND FIBER-OPTIC

∙ ON-LINE DISSOLVED GAS AND MOISTURE CONTENT MONITOR (SERVERON TM8)

∙ DIRECTED-FLOW PRESSURE RELIEF DEVICE WITH DISCHARGE PIPING (QUALITROL XPRD)

∙ DUAL-TANK NITROGEN REGULATOR CABINET WITH ELECTRICAL PACKAGE

∙ OIL LEVEL INDICATOR

∙ WTI AND OTI GAUGES

LETTERING.

CONTROL AND POWER CABINETS SHALL BE ANODIZED ALUMINUM OR STAINLESS STEEL WITH ENGRAVED BLACK

LOW-VOLTAGE BUSHINGS MADE OF STAINLESS STEEL WITH BLACK LETTERING. DEVICE NAMEPLATES WITHIN THE

ALSO BE PROVIDED. EQUIPMENT NAMEPLATES SHALL BE PROVIDED FOR THE HIGH-VOLTAGE BUSHINGS AND

CALCULATED X/R RATIO. AN ADDITIONAL DIAGRAM NAMEPLATE FOR SLING LOCATIONS AND LIFT POSITIONS SHALL

PLANT LOCATION, GOVERNMENT CONTRACT NUMBER, PRESSURE AND VACUUM THE TANK WILL WITHSTAND, AND

∙ NAMEPLATES: CAST BRONZE OR STAINLESS STEEL; IEEE C57.12.00, TABLE 7, INCLUDING MANUFACTURING DATE,

- FOLD-DOWN MAINTENANCE TRAY ON INSIDE OF CONTROL CABINET DOOR.

HUMIDISTAT / THERMOSTAT CONTROL.

- PTC RESISTOR DESIGN ENCLOSURE HEATERS WITH INTEGRAL FANS, AND INDUSTRIAL GRADE

- 120 V AC, 20 A HOSPITAL GRADE GFCI RECEPTACLE MOUNTED INSIDE THE CONTROL CABINET.

- 120 V AC, 1,000 LUMEN LED TYPE A19 LAMPS WITH DOOR-ACTUATED SWITCH.

- ALL CIRCUITS, WIRING AND EQUIPMENT RATED GREATER THAN 120 V AC TO BE MOUNTED IN POWER CABINET.

VIEWING.

PANEL WITHIN CONTROL CABINET, WITH WEATHERPROOF WINDOW PROVIDED IN CABINET DOOR FOR

- TRANSFORMER TEMPERATURE MONITOR (QUALITROL QTMS), WITH HMI MODULE MOUNTED ON SWING

WEATHERPROOF WINDOW PROVIDED IN CABINET DOOR FOR VIEWING.

- TWO 10 PT. ANNUNCIATORS (SEL MODEL 2533) MOUNTED ON SWING PANEL WITHIN CONTROL CABINET, WITH

∙ SPECIAL FEATURES:

- 125 AND 250 V DC CIRCUITS - RATED 125/250 OR 250 V DC, AND 10,000 A INTERRUPTING

- 120 V AC CIRCUITS - RATED 250 V DC AND 120/240 OR 240 V AC, AND 10,000 A INTERRUPTING

- 480 V AC CIRCUITS - RATED 600 V AC AND 35,000 A INTERRUPTING AT 480 V AC

∙ MOLDED-CASE CIRCUIT BREAKERS:

120 V AC CIRCUITS - 10 A

- SINGLE-BREAK INDUCTIVE LOAD INTERRUPTING RATING: 125 V DC CIRCUITS - 1.5 A;

- RATED FOR 600 V AC OR 250 V DC

∙ SWITCHES:

120 V AC CIRCUITS - 6.0 A

- SINGLE-CONTACT INDUCTIVE LOAD INTERRUPTING CAPACITY: 125 V DC CIRCUITS - 1.0 A;

- RATED FOR 125 V DC OR 120 V AC; MEETS REQUIREMENTS OF NEMA ICS5; 10 A CONTACTS

∙ AUXILIARY RELAYS:

∙ TERMINAL BLOCKS: 600 V, 30 A MINIMUM, 90 ºC RATED TERMINATIONS.

BOXES SHALL BE CAST ALUMINUM WITH CAST COVERS AND LIQUID-TIGHT HUBS.

ALL CONDUIT THREADED JOINTS SHALL HAVE A CONDUCTIVE JOINT COMPOUND APPLIED. OUTLET AND JUNCTION

∙ CONDUIT: ALL WIRING TO BE RUN IN CONDUIT. WIRE RUNS THROUGH TANK REINFORCING CHANNELS NOT ALLOWED.

PHASE C - YELLOW; GROUNDED NEUTRAL - WHITE; INSULATED GROUND - GREEN/YELLOW

∙ WIRING: XLPE; 3-PHASE POWER CONDUCTORS COLOR CODED: PHASE A - BROWN; PHASE B - ORANGE;

COOLING FANS - 480 V AC, 3-WIRE, 3-PHASE, 60 HZ

∙ GOVERNMENT-FURNISHED POWER: CONTROL POWER - 125 V DC; ANNUNCIATION POWER - 125 V DC;

SIDE PANELS OF ENCLOSURES.

VIEWING QUALITROL QTMS AND ANNUNCIATOR IN CONTROL CABINET. SOLAR SHIELDING ON TOP, FRONT AND

∙ CABINET MATERIAL: WEATHER-PROOF TYPE 304 STAINLESS STEEL WITH LOCKING PROVISIONS. WINDOWS FOR

∙ ANALOG TEMPERATURE GAUGE FUNCTIONAL VERIFICATION

∙ BUSHING CURRENT TRANSFORMER ROUTINE TESTS

CAPACITANCE AND POWER FACTOR TESTS DURING TRANSFORMER F.A.T.

∙ EACH HIGH-VOLTAGE AND HIGH-VOLTAGE NEUTRAL BUSHING SHALL UNDERGO

∙ ALL ELECTRICAL AND ELECTO-MECHANICAL DEVICES SHALL BE FUNCTIONALLY TESTED

∙ DE-ENERGIZED TAP CHANGERS MECHANICAL OPERATIONAL TEST (5 COMPLETE CYCLES)

CONFIGURATION

- ONE SFRA TEST TO BE PERFORMED WITH THE TRANSFORMER IN THE SHIPPING

AND OIL FILLED

- ONE SFRA TEST TO BE PERFORMED WITH THE TRANSFORMER FULLY ASSEMBLED

- CABLE INTEGRITY TEST REQUIRED

∙ SWEEP FREQUENCY RESPONSE ANALYSIS (WITH ELECTRONIC DATA FILES)

∙ LEAKAGE REACTANCE (WITH ELECTRONIC DATA FILES)

500 PC; ONE HOUR LEVEL: 300 PC

∙ INDUCED VOLTAGE TEST ACCEPTANCE CRITERIA: 7,200 CYCLE ENHANCEMENT LEVEL:

∙ AUDIBLE SOUND LEVEL TESTS SHALL BE PERFORMED ON ONE TRANSFORMER

∙ LIGHTNING IMPULSE TESTS

TRANSFORMERVOLTAGE RATINGS ON ONE

∙ TEMPERATURE RISE TESTS SHALL BE PERFORMED AT EACH COOLING STAGE FOR BOTH HIGH

∙ ALL 'ROUTINE' TESTS (IEEE C57.12.00, TABLE 17)

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(REFERENCE SPECIFICATION SECTION 48 19 23.04 26)

∙ (QTY 1): VALVE OF EACH TYPE

∙ (QTY 1): PRESSURE REGULATOR FOR NITROGEN EQUIPMENT

∙ (QTY 1): FUSE OF EACH TYPE AND RATING

∙ (QTY 3): FIBER OPTIC EXTENSION CABLE

∙ (QTY 1): CRATED RADIATOR COMPLETE WITH INLET AND OUTLET ISOLATING VALVES

∙ (QTY 2): COOLING FAN COMPLETE WITH MOTOR

∙ (QTY 1): BUSHING CURRENT TRANSFORMER OF EACH TYPE AND RATING

∙ (QTY 1): OIL TEMPERATURE INDICATOR

∙ (QTY 1): WINDING TEMPERATURE INDICATOR

∙ (QTY 1): LIQUID LEVEL INDICATOR

∙ (QTY 1): TRANSFORMER TEMPERATURE MONITOR MODULE OF EACH TYPE

∙ (QTY 1): ELECTRONIC PRESSURE MONITOR AND ONE PRESSURE TRANSDUCER

∙ (QTY 1): PRESSURE RELIEF DEVICE SEAL KIT AND RECOMMENDED SPARE PARTS KIT

∙ (QTY 1): PRESSURE RELIEF DEVICE

∙ (QTY 1): RELAY AND CONTACTOR OF EACH TYPE AND RATING

∙ (QTY 1): COMPLETE SPARE ANNUNCIATOR DEVICE

∙ (QTY 2): SET OF GASKETS FOR TRANSFORMER REASSEMBLY

∙ (QTY 1): COMPLETE GASKET SET

∙ (QTY 3): STORAGE STANDS FOR ALL SPARE BUSHINGS

∙ (QTY 1): 25 KV LOW-VOLTAGE WINDING BUSHING

∙ (QTY 1): 25 KV HIGH-VOLTAGE NEUTRAL BUSHING

∙ (QTY 1): 230 KV HIGH-VOLTAGE WINDING BUSHING

c la ri fi e d l o a d /n o -l o a d l o s s e s a t k V

A m e n d m e n t