1988

S11.01 SUMMARY OF TURBINE DESIGN FEATURES

TURBINE NO.: 198045 INSTRUCTION BOOK NO.: GEK 96709 TURBINE TYPE: SCSF DOUBLE AUTOMATIC EXTRACTION DRIVING: 86,600 KVA, 13,800 Volts, 3 Phase, 60 Hz, Hydrogen Cooled

NOTE: The following summary lists the specific design features and components of the turbine.

Front standard type: FS180 with flexible support

PERFORMANCE Rating 72,690 kW Design Steam Conditions:

Initial pressure 950 psig Initial temperature 900 FTT Back pressure 1.5 inches Hg Abs

Speed: Rated 3600 rpm Primary trip 3960 rpm Emergency trip 4032 rpm

ELECTROHYDRAULIC UNITS Pre-emergency speed setting 3780 rpm High-speed setting 3850 rpm

EXTRACTION AND ADMISSION Automatic extraction at design pressure 160 psig Operating pressure range 176/144 psig Automatic extraction at design pressure 45 psig Operating pressure range 55/~5 psig

THERMODYNAMIC DESIGN Nonreturn 14 inches in 7th stage shell Nonreturn 30 inches in 10th stage shell Exhaust red line set at 175 of

MECHANICAL DESIGN Active thrust bearing: Tapered

Orifice size 11/16 inch Inactive thrust bearing: Tapered

Orifice size 17/32 inch No. 1 bearing: E"iptical

Orifice size 5/16 inch Minimum bearing clearance .013 inch

No.2 bearing: E"iptical Orifice size 15/32 inch Minimum bearing clearance .016 inch.

MECHANICAL DESIGN (Cont'd) Turning gear on turbine exhaust bearing

Nameplate language: English

Thermometers: Degrees Fahrenheit Gages: English units

Accessory panels: Hydrogen control cabinet

Provision for borescope inspection: First stage Eighth stage Eleventh stage

Relief diaphragm Fog nozzles Turning gear motor 460 vac Sight flow for the oil from the:

No. 1 bearing- is located on front standard No.2 bearing is located on bearing bracket

Lifting devices: Rotor lifting slings Rotor lifting beam Hydraulic jacks for initial opening of joint Casing lifting slings

Weights: Upper half H.P. head, exhaust casing including diaphragms, . 65,2481b Turbine rotor 39,800 Ib Generator rotor 40,000 Ib

TURBINE CONTROL SYSTEM Mark III Electrohydraulic Controls

EMERGENCY PROTECTION SYSTEM Stop valve (partial arc) Primary trip Emergency trip Electrical trip Primary overspeed trip Emergency overs peed trip Thrust failure trip Low vacuum trip Manual trip Nonreturn valve trip device Low lube oil pressure and level trip Low hydraulic pressure and level trip High exhaust temperature trip

LUBRICATION AND HYDRAULIC SYSTEM Oil cooler type: Shell and tube

. Cooling water: Fresh Oil tank size: OT12H Oil tank capacity: 2,000 gallons Oil level gage: Alarm contact Low bearing oil pressure alarm switch: Closes at 10 psig; opens at 20 psig. Low bearing oil pressure trip and alarm switch: Closes at 6 psig; opens at 16 psig. Bearing oil pump 460 vac (2)

Pump test hand valve on oil tank Emergency bearing and seal oil pump 120 vdc

Pump test hand valve on oil tank Oil filter Overflow sight

HYDRAULIC POWER UNIT Pump motors (2) 460 vac, speed 1200 rpm Pump test hand valve Resistance temperature detector Pressure switches Pressure transmitter: Electric Fluid-level alarm switch: High and low Low fluid-level trip and alarm switch Low-hydraulic pressure alarm switch Low-hydraulic pressure trip and alarm switch Nonreturn valve trip relay Electrical trip device (ETO) Space Heaters

SHAFT SEAL AND VENT SYSTEM Steam seal regulator (Pneumatic) Gland exhauster system: Separating tank and motor-driven air blower

STEAM VALVE SWITCHES Stop valve circuit breaker switch Stop valve closed position switch Stop valve test position switch Stop valve open position switch

TEMPERATURE INDICATING DEVICES Dial thermometers on turbine for oil drains from:

Combined thrust No. 1 bearing No. 2 bearing

Temperature measuring devices for oil cooler: Oil in - Tank Oil out - Cooler

RTD's in bearings: Upper half of active thrust bearing in babbit (2) Upper half of inactive thrust bearing in babbit (2) No. 1 bearing in babbit No.2 bearing in babbit

TEMPERATURE INDICATING DEVICES (Cont'd) Temperature measuring device on turbine for steam in upper exhaust casing Temperature measuring device on turbine for steam in lower exhaust casing Remote temperature indication for steam in lower exhaust casing Exhaust temperature switch alarms at 175 of and trips and alarms at 225 of

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4/22/87 L-I078421-198045-19

GD-96709 GEN. NO. 316X702

DESIGN DATA GENERATOR

ATB-2; Wye Connected; 86.600 KVA; 3.600 RPM; 13.800 VOLTS; 0.85 PF; 30 PSI at 40C H2

Total Temperature at Rating Guaranteed not to Exceed: 100 C on Armature by Detector 125 C on Field by Resistance

Gas at 98% Purity Cpsig). KVA ..... Armature Amps . Armature Volts Field Amps Exciter Volts Power Factor. Max. KVA, One Cooler Out of Service

No-Load Field Current .

Rating . 30

Capability 15

3,623 77 940 3.261

Capability 5

86.600

671 13.800

619

64.950 2 717

13.800

375 375

13.800 544

0.85 0.85 375

69.280 62.352 0.85

51.960

240 Amperes

COLLECTOR AND BRUSH DATA Co 11 ector Brushes,__2Q Per Set . . . . . Recommended Grade. Co 11 ector Mi numum Safe Opera ti ng Di ameter . . . . . . . . . Shaft Grounding Brushes, _1 Per Set. Recommended Grade, If Brushes Spark or Chatter, Refer to .

National Carbon 634 . . . . ~ inches National Carbon 634

. . . . . GEK-35474

AIR FILTER Type of Air Filter .. Si ze of A ir Fi lter . . Number of Air Filters.

FARR

GAS COOLER DATA Inlet Water Temperature 80 F. Head Loss Through Cooler ~ Ft.H20 Gas Space in Generator 1150 Cu. Ft.

Water Flow at Rated Load 620 GPM Gas Flow Through Generator 46.355 CFM

20X30X2 1

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« a:: a: a UJ Z w lJj (!)

(!) <t t-- _J a > ui a: :::J t-- <t .:::E a: <t

t-- H Z :::J a:: w 0..

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ESTIMATED SATURATION AND SYNCHRONOUS IMPEDANCE CURVES 86600 KVA - 3600 RPM - 13800 VOLTS - 0.85 PF

0.53 SeR - 30 PSIG H2 - 375 FLO VOLTS

','" 1111"" t ••••

I ! i , . ,

i i I I :

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I j !

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,

+--+--'-f-~-f-+-+--7--' ---.-+----Ir--+ i I

i 1 ,-+--~--H- , i : ! I i

13800 ::; 3623 =

- .. = ..

o 100 200 300 400 500 600 FIELD AMPERES

900

U H a: r­ u L1J _J L1J

@ _J < 0: IJ.J Z IJ.J (!)

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ESTIMATED REACTIVE CAPABILITY CURVES 86600 KVA - 3600 RPM - 13800 VOLTS - 0.85 PF

0.53 seA - 30 PSIG H2 - 375 FLO VOLTS g 1I1! III, 'II 111111'" 1'"11'111 I' 11111111 "" I II, " ! II. 'I '! "' "" '" '1"111111 I HI ~

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r

30+-~_'-Q+-~~--~4-~~~~~-+~~;-~~--~~-+~~-~~~_ j

~: ~~-+-, ~,--~~~~~'~~~~~~-~~~+-~~--~~--7---~

2°~~--~l'-·~!--~i--~ - , ~I~-+--+-~.)..+'=--:--:;;< : i : 10~~~--~~--L_~~~~~~~--+-4b~~~=t~+-~~~L_~-= I en

IT: « > « (!) w ~

1 eo 7(J 80

Cl « w _J

, +-----~~-+--+-~~~~~--~~--~~~=

U H a: I- U UJ -' UJ UJ Ul

® a: Ul 0.. _J :::E « -c 0: l- ui

Z -' 0 lL! > (.!) 0

-' H ~ I- H Z :::J a: W 0..

i

ESTIMATED EXCITATION V CURVES 86600 KVA - 3600 APM - 13800 VOLTS - 0.85 PF

0.53 seA - 30 PSIG H2 - 375 FLO VOLTS

f' II , ! ' I Ii I" I j I. I I I I I' I I I I' I , I Ii' II , , ' , , I r ' I I I : ' II rill I' I 1 j I j I j 1 I 1 I I 'l1T11. ~ t I I, I I I I I' I c ~ . ,! ~.. I I!: ,... i t f ! ! i • ,. : !. ,i:'" :- ~ r ~ .~ . ~_ ~ :. : ~; : f - -: •• t I ! ! ; i \ ~ ; . i n ( ! ..; ~ ; li i ! l ! i II I ! i i! ~ ..., l l ~ ~ :' .....__j_ I; 1 -t ;.. i I j i ! I . ! 1 . : ,; :

1.0t I' I I j, i' : +-_....__-'.,___~ __ l_ \ _( __ ' I

1 I : l .., ! ~ ~ I , ,

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- .. - .. - ..

...; ..

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, J ::

. I ~ -'-r-~ . l ~

!

o 700 100 200 300 FIELD

GRAHAM ENGINEERING ANSWERS

SURFACE CONDENSER SPECIFICATIONS

User: Location: Item: Turbine Surface Condenser

PERFORMlI.NCE

Ref.No.: 135BOS86 Date: 1/27/87 (6/24/11) Engineer: LEW/JED (CBD)

---------------~ -- -- --- -- -.-

Absolute Pressure @ Steam Inlet (in.HgA) . Steam Condensed (lb. /hr. ) . Heat Rejected (Btu/hr.) . Circulating ,vater (gpm) . Water specific gravity / specific heat (Btu/lb F) . Water Inlet / outlet (deg.F) . Water Pressure Loss: (ft.Water / psi) . Percent Clean . Tube Velocity (fps) .

DESIGN MODEL :

Surface Area (sq.ft.) Total/Effective . Number of vJater Passes . Number of Tubes . Outside Tube Diameter (in.) BWG . Total Tube Length (ft.) . Design / Test Pressure (psig) Shell FV&

Tubes . Shell . Design Temperature (deg.F) Tubes .

Hotwell bathtub supply (min.) . Steam Inlet Diameter (in.) . Water Connections (in.) . Condensate Outlet (in.) . Vapor Outlet

1'1ATERIALS

1. 75 395,000

375,249,900 37,500

1.0 / 1.0 65 / 85 22.1/ 9.6

85 8.00

TB/TD 39,240/38,736

0.875

2 5,710

22 ave. 30

15 / 125 / 250 150 2

80.75 X 182.75 (4) - 36 (1) - 16 (1) - 4

Shell ~-------------------v'lelded steel Plate _ ,vater boxes (Divided) _NeoprenE lined l'ie1ded Steel Plate _ vvater box covers_Neoprene lined Steel Plate _ Baffles Steel Plate Tube support plates Steel Plate _ Tubes (~'»elded) Titanium B-338 GR 2 _ Tube sheets Titanium Clad on Steel Plates _ Gaskets - Shell side Canvas with red lead oil, Tube side cloth Inserted Rubber

Rema r k s : De sign pe r HE 1--:_-:---:-_-:-:-- ::-_-:--_--, __ ::- ,..-- ---:- __ Shell expansion joint included. Zinc anodes in water boxes. Manways in Water box covers. 2~" Hotwell fill connection. Design is suitable for Brush cleaning system. Tubes are seal welded to tubesheets. -------

GRAHAM CORPORATION, Batavia, NY 14020 Corporate and Sales Headquarters: 20 Florence Avenue, Batavia, New York 14020

Tel: 585-343-2216 Fax: 585-343-1097 E-MAIL:equipment @graham-mfg.com WEBSITE:http://www graham-mfg.com