Westinghouse 15-A-1404-1 Instruction Book
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Westinghouse 15-A-1404-1 Instruction Book

Westinghouse 15-A-1404-1 Instruction Book

600 kw turbine generator units for hulls 1053 & 1054
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1
/?ft<ltstuciic4c
x5-A-
1403
MH-729-B
600 KW TURBINE GENERATOR UNITS
Turbine, Reduction Gear, Generator, Exciter and Regulator
lor
HULLS 1053 & 1054
THE INGALLS SHIPBUILDING CORPORATION
Paseagoula, Mississippi
Ingalls Hull No. 1053
Customers Order No. CCY-2
Westinghouse Order No. BH-69181-T2
Ingalls Hull No. 1054
Customers Order No. CDE-2
Westinghouse Order No. BH-71041-T2
January, 1959
______________________________________________________________ (g
WESTINGHOUSE
South Philadelphia Works - Steam Division - Essington, Pa.
INSTRUCTION BOOK 1430-C95
ELECTRIC
C O R P O R A T I
C=3
o o
pjE'0G03s2r
Printed In U.S.A.

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Summary of Contents for Westinghouse 15-A-1404-1

  • Page 1 Turbine, Reduction Gear, Generator, Exciter and Regulator HULLS 1053 & 1054 THE INGALLS SHIPBUILDING CORPORATION Paseagoula, Mississippi Ingalls Hull No. 1053 Customers Order No. CCY-2 Westinghouse Order No. BH-69181-T2 Ingalls Hull No. 1054 Customers Order No. CDE-2 Westinghouse Order No. BH-71041-T2 January, 1959 ______________________________________________________________ (g...
  • Page 2 Should communications be desirable or necessary regarding the unit instal­ lation covered by this instruction book, or an individual device included in the installation, replies will be greatly facilitated by citing tbe Westinghouse General Order Number for tbe complete equipment and tbe nameplate readings for the detail apparatus involved.
  • Page 3 TURBINE AND REDUCTION GEAR Table of Contents Page Serial Number Assignment ..................Communications ......................Order Repair Parts ....................n___ n Red Tab Chapter 1 - Turbine &-Reduction Gear Chapter 2 - Ships Service A-C Generator Chapter 3 - D-C Rototrol Exciter .
  • Page 5 TURBINE-GENERATOR UNITS Serial Number Assignments INGALLS HULL NO. I0S3 S/S------------------------ 1 Turbina Generator Eiciter (bit NO. 1 15-A-1404-1 1-S-58-P-316 1- S-58-P-317 Unit No. 2 15-A-1404-2 2-S-58-P-316 2- S-58-P-317 INGALLS HULL NO. 1064 Turbine Generator Exciter Unit No. 1 15-A-1404-S l-S-57-P-994 1- 6-57-P-995 Unit No.
  • Page 6 TURStKE ARD REOUCTIOH GEM Table of Contents Page Serial Number Assignment Communications ....Order Repair Parts . . . Red Tab Chapter 1 - Turbine ft-Reduction Gear . Chapter 2 - Ships Service A-C Generator Chapter 3 - D-C Rototrol Exciter .

  • Page 7: Table Of Contents

    TURBINE AND REDUCTION GEAR ifis Table of Contents Page Subject list of Turbine and Reduction Gear Illustrations 100.3 Section 1.1 - Turbine Details ......Turbine & Reduction Gear Characteristics . . . General Description ........Cylinder ..............Rotor ..............Curtis Blading ............
  • Page 8 TURBINE-GENERATOR UNIT Subject Page Section 1.4 - Installation of Turbine ..........Alignment of Unit and Setting of Turbine Rotor ....... Pipe Connections..................Section 1.5 - Instructions for Operation of Turbine ......To Start....................To Parallel....................To Shut Down.................... Precautions....................Section 1.6 - Care and Maintenance of Turbine ........Inspection....................

  • Page 9: List Of Illustrations

    TURBINE MO REDUCTION GEAR LIST OF ILLUSTRATIONS White Fig. No. Title Outline of Turbine, Gear and Generator ....Longitudinal Section through Turbine and Pinion Curtis and Rateau Blading ........Interstage Diaphragm Seal Rings ......Turbine Bearings ............Rotor Glands and Labyrinth Seal Rings . . . Steen, Drain and Gland Piping Diagram .

  • Page 10: Section 1.1. Turbine Details

    CHAPTER 1 - TURBINE AND REDUCTION GEAR Section 1.1. Turbine Details The normal operating speed of the turbifi TURBINE AND REDUCTION GEAR CHARACTERISTICS is 9,018 rpa and that of the generator Each unit consists of a high-speed con­ 1,200 rpa. densing turbine, arranged to drive an a-c gen­...

  • Page 11: Cylinder

    TURBI HE—GENERATOR UNIT stages to the pressure maintained in the con­ chest valves it enters the nozzle block. This denser, thus inparting further rotative energy block is made of forged corrosion resistant to the rotor. steel, and is secured to the turbine cylinder by means of caulked wedges and screws.

  • Page 12: Interstage Seals

    TURBINE AND REDUCTION GEAR units welded into inner and outer rings to pressure. The leakage is carried away through Bake acoaplete diaphragm assembly. The latter the ’dummy leakoff pipe", and re-enters the are Bade in halves and extend completely around turbine cylinder at the fifth stage ofbladi tbe rotor.

  • Page 13: Thrust Bearing

    TURBINE-GENERATOR UNIT which in oil baffle is installed, forming an 2 psig. It will be noted that the nain steaa oil pocket. A slot is cut at the bottom of inlet line, and the lapulse chamber of the this pocket on the vertical centerline, by cylinder have drains, controlled by valves.

  • Page 14: Rotor Position Indicator

    TURBINE AND REDUCTION GEAR in Figure T between tbe base ring (S) and and aeasuring tbe amount of movement with the bousing. The thickness of this filler feelers. Adjust thickness of one or both tenxin piece Bust be such that with the rotor barred filler pieces, by shimming or machining, ♦-“...

  • Page 15: Throttle Valve

    TURBIRE-GEHERATOR UNIT The valve disc (3). and seat (2). are are bolted together to sake the driving con­ provided with cobalt-chromium contact surfaces nection. to prevent erosion and the valve is held on 3. Lubrication is supplled by means of sprays the stem (7), by the disc flange (5).

  • Page 16: Governor

    TURBINE MO REOUCTION GEAR lifting-rod flange, engaging the lower shoulder . The amount the valve lifting stem is raised on each valve. in the above operation is immaterial as lmugj] as it is enough to obtain readings on lath n For establishing the proper lifts for the Indicators, and that successive trials spqfr^j several valves a special fixture is provided,...
  • Page 17 TURBINE-GENERATOR UNIT and through external piping to the relay. Item seat to the cup valve (10). When the governor (2) of Figure T-13 entering the servomotor at is at rest, the strap spring holds the governor the flanged inlet as shown. weights ( ).
  • Page 18 TURBINE AND REDUCTION GEAR lnneraost position by tbe strap spring, and Increases the bellows closes against the acticn tbe steaa chest valves (26) and (27), of Fig­ of the spring (38). The H.P. oil that has entered tbe relay cavity bleeds to the ure T-14, are held closed through linkage connected to the operating piston (7), of side of the piston (7), but as the belf...

  • Page 19: Speed Changer

    TURBINE-GENERATOR OMIT which permits a treater aaount of H.P. gov­ bushing (25) in the top of the speed changer erning oil allowed to drain and hence a re­ housing (18). Since the bushing (25) is sta­ duction in the 'control oil* presaure. tionary, rotation of the shaft ( ) by the reduction in control oil pressure, reducing...

  • Page 20: Section 1.2 Reduction Gear

    TURBINE AND REDUCTION GEAR Section 1.2 Reduction Gear GENERAL DESCRIPTION before rebabblttlng. The gear bearings .006 to .008-inch noraal with maximum of . The longitudinal section through the pin­ inch before rebabblttlng. The turbine ion shaft is shown in Figure T-2 and the lon­ aaln gear bearing is provided with bolted-on gitudinal section through the reduction gear thrust rings at either end.

  • Page 21: Oil System

    TURBIME-6ERERAT0R UR IT HAIM OIL PUMP and servo-motor mechanisms to operate the steam-chest valves. The remainder is led Bain oil pump, which is shown in Pig. through external piping through the strainer T-18 and in the reduction gear assembly. Fig­ and cooler to lubricate the bearings and re­...

  • Page 22: Oil Strainer

    TURBINE AND REDUCTION GEAR puap cylinder. The rotor, which is eccentric Provision is Bade in the shell, by means to the pump cylinder bore contains three spring of a ’floating* reverse end tube plate positioned, self-adjusting vanes which operate relative expansion of the shell and tube bdjv1- with.small axial clearance and follow the dle, the reverse end tube plate being seal Inner surface of the puap cylinder, the vanes...
  • Page 23 TURBINE-6ENERAT0R UNIT I. For Circulation Systems (See Table) Physical and Cheeicsl Properties NOTE l: The values shown in the table below (See Table at bottom of page) are based on tests nade in accordance witb the latest approved standards of the American III.
  • Page 24 TURB1HE AKD REDUCTION GEAR V. Replace Parts water is present, due to the lack of proper protection. It is recommended that new pays Some of the corrosion inhibitors added by be treated by immersion in new. inhibited (fit—J the suppliers are of the plating type, that at a temperature of 140-150°F.

  • Page 25: Section 1.3 - Description Of Safety Devices

    TURBINE-GENERATOR UNIT Section 1.3 Description of Safety Devices OVERSPEED TRIP then this nechanisa has operated it Bust be reset by band. This is accoapllshed by The .overspeed-trip necbanlsm which trips returning the reset handle to the horizontal the throttle valve and thus shuts down the position when the latch plates will again be turbine'in case it overspeeds is shown in engaged.

  • Page 26: Testing Of Safety Devices

    TURBINE AND RE9UCTI0N GEAR overspeed trip lever. Moveaent of this trip to working parts. Consequently, all parts lever shuts down the turbine ss described should be kept in good condition at all timbe^-'J under ’Overspeed Trip Mechanise*. Periodically, about once each nonth, the op—- e rat ion of the safety devices should be cheafe&i .

  • Page 27: Section 1.4 - Installation Of Turbine

    TURBIHE-6EHERAT0R UR IT Section 1.4 Installation of Turbine ALI8RMERT OF (WIT AND SETTIN6 is adjusted to maintain the clearance shown OF TURBIRE ROTOR in the diagram. Fig. T-24. The gear and pin­ ion are adjusted to drawing clearances by The bedplate of the unit is supported on, shifting the liners (see Figure T-1S) in back and secured to.

  • Page 28: Pipe Connections

    TURBINE MID REDUCTION GEAR The exhaust line should have a flexible when not supported. This drop should be .0040 inch, measured on the shoulder just outside expansion-joint close to the turbine, prefer­ the Journal. Replace the turbine-end bearing ably at the turbine exhaust flange. —] and roll out the generator-end gear bearing.

  • Page 29: Section 1.5 Instructions For Operation Of Turbine

    TURBINE-GENERATOR UNIT Section 1.5 Instructions for Operation of Turbine TO START STEP 13 Adjust the rheostat tor nornal volt­ age of the generator. STEP 1 See that circuit breaker and nain STEP 14 Eoonect tbe generator to the line and switch are open.

  • Page 30: Precautions

    TURBINE AMD REDUCTION 6EAR STEP 4 Keep the throttle stem and the steam- STEP S Shot off the rater to the oil cooler. chest valve-lifting rod clean, free of erosicm__ STEP 6 Shut off the steam to glands. or corrosion. (Do not paint these stems.) L—J STEP S Keep the bearing oil pressure betvee STEP 7 Clean the machine and put It In read­...

  • Page 31: Section 1.6 Care And Maintenance Of Turbine

    TURBINE-GENERATOR UNIT Section 1.6 Care and Maintenance of Turbine INSPECTION The approximate weight of one complete set of tools is 70 pounds. About once each year, depending on the nature of the service, the unit should be dismantled and thoroughly Inspected and For the assistance of the operator in cleaned.

  • Page 32: Tools And Trenches

    TURBINE AND REDUCTION 6EAR TOOLS AND WRENCHES REPAIR PARTS Figure T-28 is shorn for the purpose of The lists, which face the several turbid enabling the operator to familiarize himself illustrations have been compiled to facilita with the special wrenches and tools and the ordering spare or renewal parts by name purposes for which they are Intended.

  • Page 33: Index

    TUNSINE-6ENERAT0R UNIT Section 7 — Appendix INDEX Page . Alignment of Pinion and Gear ..............Alignment of Unit and Setting of Turbine Rotor ......... Atmospheric Relief Valve ................. Bearing, Turbine Thrust ................Bearings, Pinion and Gear ..............'Ill Bearings, Turbine ..................

  • Page 34: List Of Repair Parts

    TORBIHE AND REDUCTION GEAR List of Repair Parts (Use Group 7) WESTINGHOUSE. E.LLCT551C. COR.P MARlN)£. OivtStOfi rafcMtTURBiNL GENERATOR SLT DWG MOTTO SCA.Lt J SPARE. PARTS LIST SHEET I T.rvt , UB. 6 40 D 3 6< EtXFN WT ( |ges |GH3 [gg~»...
  • Page 35 TURBINE-GENERATOR UNIT List of Repair Parts (con't) (Use Group 7) TITLt SPARE PARTS LIST sheet G4-0 D 366 RE.FEREMCE REQ'D TOR l SHIP Pucr-mnsi »n NAME. i» SPtC. «r « STVV.I MOi COUPLING moulder screw 16 10 10 10 10 10 10 10 SIERBUX CZ64BI 10 to to to 10...
  • Page 36 TURBINE AND REDUCTION GEAR List of Repair Parts (con't) (Use Group 7) 1430- M6-OCC38?i:...
  • Page 37 TUB INE-6ENEMT0R UNIT List of Repair Parts (con't) (Use Group 7) SPARE PARTS LIST TjT ^ 64-0 D 366 sheet REQ'D roh BEFERENCE . $H|P| MATl NAMt OSMMtNQ 1 r» SPEC. NITtS STTILMO & & 104 TURBINE CYLINDER JOINT -VtU IB*** - SIlS BOLT...
  • Page 38 TURBINE AND REDUCTION GEAR List of Repair Parts (con’t) (Use Group 7) 1430- IHE-C0H521:...
  • Page 39 TUR8INE-GEHERATOR UNIT List of Repair Parts (con’t) (Use Group 7) *>««• 64003 66 T,TLt5PARE PARTS LIST sheet REFERENCE REQ'D 1 iHIP MATV. NAMt PWTEHN MAMIMC 2 SPEC. STVLJLNOs STEAM CHEST COVER tUUKAGE (COUTD FI7 ITEM-07) - - - — VALVE 98J IT8 8 —...
  • Page 40 • -...
  • Page 41 a <s...
  • Page 43 FIGURE T-2 LONGITUDINAL SECTION THROUGH TURBINE AND PINION Item Name of Part .Auto Stop Gov. Body Bearing Turb. (Thrust End) Bearing Turb. (Coupling End) Bearing Pinion (Coupling End) Bearing Pinion (Generator End) Bearing Housing Cover Bearing Housing Base Bearing Cover (Pinion) Filler Plate (Thrust End) Bearing Thrust Ring Bearing (Thrust)
  • Page 45 .x a ^ ^ s 7 -p C i? z < ;< -R>5 £ Q H O' L±J 3 0 - g 5 £ ^ (/) P O CC z y L. < 2 °?z — a: H w cpQ-uiirujx > JJSsa5S5 <...
  • Page 49 I— < o. m > *“ D < _l o £ ? o < in in < h- <...

  • Page 52: Thrust Bearing

    FIGURE T-8 TURBINE THRUST BEARING Name of Part Item Oil Control Ring (Upper Half) Collar Base Ring Key Sere* Base Ring Key Base Ring (In Halves) Lower Leveling Plate Base Ring Dowel Disc Shoe (Body) Shoe (Babbitt) Shoe (Support) Upper Leveling Plate Leveling Plate Set Screw Base Ring Shoe Dowel Oil Control Ring (Lower Half)

  • Page 55: Rotor Position Indicator

    FIGURE T-9 ROTOR-POSITION INDICATOR Item Name of Part End Cover End Cover Bolt End Plug Contact Ball Contact Ball Retainer Contact Ball Retainer Spring Spindle Spindle Bushing Spindle Bushing Set Screw Pointer Pointer Screw Pointer Pin Graduated Scale Plate...
  • Page 56 DISCHARGE MB-0005521...

  • Page 57: Turbine End Pinion Coupling

    FIGURE T-10 TURBINE - PINION COUPLING Item Name of Part Flange Sleeve Flange Sleeve Special Hub Retainer Lock Ring Shoulder Screw Hex Nut...

  • Page 58: Throttle Valve

    FIGURE T-ll ■ THROTTLE VALVE ASSEMBLY Item Name Throttle Valve and Stream Strainer Body Throttle Valve Seat Throttle Valve Disc Throttle Valve Disc Pin Throttle Valve Disc Flange Throttle Valve Disc Cap Screw Throttle Valve Stem Leakoff Bushing Gasket Bonnet Hex Nut Stud Coupling Washer...
  • Page 61 CLEARANCES ■ .008 WAX. .005 MIN. TOTAL .006 MAX. .004 MIN. ON DIAMETER .005 MAX. .002 MIN. ON DIAMETER .004 MAX. .002 MIN. ON OlAMETER •f -.0045 MAX. £025MIN. ON OlAMETER SECTION "A-A'...
  • Page 62 • 9T FIGURE T-13 GOVERNOR SERVO-MOTOR Item Name of Part Name of Part Item Spring (Relay) Spacer Bolt Relay Spacer Base Stem Socket Head Screw Socket Head Screw Locknut Elastic Stop Nut, (piston rod) Trunnion Guide Stop Piston Piston Ring Stop Nut >...
  • Page 63 STEAM CHEST LINKAGE CONTROL OIL CLEARANCE^ INLET CONN. CLEARANCE CLEARANCES .EAKAGE-DRAIN A» MAX. .004 MIN.002 ONOIA. CONN. S* MAX. .033 MIN..027 ONDIA. C' MAX .0025 MIN..002 ONDIA. D • MAX. .004 MIN. .0035 ON DIA. E' MAX .0035 MIN. .00050NDIA. F* MAX .006 MIN.
  • Page 64 «o <o « V) V 41 4> J3 > > o o *o l» f* 4) a> g »* < B 4> SJS« . c2 § £ 0 > *» 41 M *■ -a >. •tH t-> 4 a 9 £ t) S 41 c J3 •a •...
  • Page 69 0 • d w of *5 • © -Q~ < • -€- *X X<^X r-r” safi 1 w*;- Lsi > <^hJ l*L- ...\ i)': „*sHS : «• tc Jipnqg ■ ^usis x2*°iJ c*9fO»- fkifS- 5S^s? ■ z'w* i o-ha . tl ji“...

  • Page 71: Main Oil Pump

    FIGURE T-18 MAIN OIL PUMPS Item Name of Part Oil Pump Assembly Pump Body Complete Cover Driver Gear and Shaft, Complete Gear. Driver Shaft Driver Gear, Driven Shaft. Driven Driven Gear & Shaft, Complete Shaft, Drive Bushing Set Screw Spacer & Pin Complete Spacer Studs Locknuts...

  • Page 72: Oil Strainer

    FIGURE T-19 OIL - STRAINER Name of Part Item Item Name of Part Body Support Collar Locating Pin Sidewall (Perforated) Valve Plug Bottom Plate Stop Pin Handle Bail and Pressure Straining Compartment Cover Spring Bow Rivets Valve Bonnet Stud and Hex Nut Stop Pin for Jack Lever 16F-G (United)

  • Page 75: Oil Cooler

    HANDWHEEL VALVE STEM GLAND CAP GLAND— STEM PACKING VALVE BONNE‘S PACKING SEAT RING OIL TO OIL INLET COOLER -VALVE BODY .VALVE SEAT OIL FLOW BY- PASSING COOLER Oil Cooler By-Pass Valve — FIG. T—21 KiB-00038285...
  • Page 76 i**t i o H i s3 o 3 * 3 3 tc1 V 0) tl I 4J 4) H N O fi o Z Z * K M CO CO H M S. S « .*• U U 11 N D< v>...
  • Page 78 FIGURE T-23 LOW-OIL-PRESSURE TRIP Item Name of Part Trip Latch Trip Latch Pin Spring Trip Latch Pin Trip Latch Bracket and Cover Gasket Trip Rod Trip Piston Trip Spring Trip Cylinder Trip Rod Nut Trip Spring Seat Trip Spring Adjusting Bolt Locknut Trip Spring Adjusting Bolt...
  • Page 84 a> —i k< •a at c C O' o bo > ■ss •a M w u ; s s O e o a» +J I* cu •© O s ►. s ■ &£. « 6 axvoo «>•*»«> a>v 23235 53322 n v to is t* a a o...
  • Page 85 Subject Page SHIP'S SERVICE OBCRATOR SCTION 2.1 - OBSCRIPTION OP GENERATOR (BBRAli INFORMATION......Purpose ..........Machine Identification sad Data Ratine ..........Naae plate Data........ Generator Classification ..DESCRIPTION OP APPARATUS....Illustrations ........ General Arrangesent ..PTaae and End Covers Air Cooler ........Bearincs ..........
  • Page 86 TURB1ME-6EMERAT0R UNIT Subject Page Ventilation and Cooling..................207 • Power Connections (Stator Leads) ............... Control Siring and Rotor Leads ..............Lubrication................fECTICN 2.3 - OPERATION OF GENSRATQR..............208 REUUNART STARTING....................208 Brush Adjustment....................208 Initial Check on Insolation Resistance ........... Drying-Out findings................* . .. 208 Pinal Check Before First Start..............
  • Page 87 A-C GENERATOR Illustrations Index (Ship's Service A-C Generator Only) Title F‘9 Connections for Drying-Out findings with D-C Welder ....Topical Behavior Curve of Insulation Resistance during Dry-out Run......................Connections far Synchronizing A-C Generators Dsing, Leaps . . . Synchroscope for Synchronizing A-C Generators ........ Diagraa of Connections for Measuring Insulation Resistance Generator Outline ..........

  • Page 88: Ship's Service Obcrator Sction 2.1 - Obscription Op Generator

    HAPTER 2 - 600 KW, 450 VOLT SHIP'S SERVICE A-C GENERATOR t==3 Section 2.1 Description of Generator It is reconended that the naaeplate red GENERAL INFORMATION ings of the nee equipment be reviewed and Purpose flee copies of these readings be nade availEe!) able.

  • Page 89: Ptaae And End Covers

    TURBIRE-6EHERATQR URIT bung on the abaft and tbe exciter fraae is The grooves in the outer tubes open into connected to tbe generator bracket. Ibe ex­ a ‘tell-tale" cbaaber at each end of tbe citer baa its own shaft which bas a pilot fit cooler.

  • Page 90: Stator Core

    A-C GENERATOR the seals prevents leakage of oil along tbe strands deep of double cotton covered copper shaft away froa the bearing. wire. The strands are .072 inch thick; the n width of the strands is .204 inch. Stator Core 2.

  • Page 91: Collector

    TOKBIRE—CEDEKATOR UNIT The dimensions of the Id ere 5*3/4 Inches Mechanical Rotation in eldth by 17-1/2 Inches in length with s redias of 5/8 inch it the corners. As the 1. The blowers ou the generator are suitable coll is sound, each layer is brushed elth for clockwise rotation facing collector end.

  • Page 92: Coaaunlcstlons

    A-C GENERATOR Conaunicatlens staaped on the aachlne naneplate and in the netal under the naneplate and on the aachlne Should coatunlcaticn be desirable or nec­ foot. The rotor serial nuaber is stiznpeq essary regarding the Installation covered by the end of the shaft. this Instruction Book, or an Individual device included in the installation, replies sill be 3.

  • Page 93: Section 2.2 - Installation Op Smerator

    TURBINE—GENERATOR UNIT Section 2.2 Installation of Generator INSTALLATION AND ERECTION 6ENERAL INSTALLATION 6eneral Storage . 1. The' generator is shipped with the windings The principal external dinenslons of the well protected froa noisture. At the destina­ generator set and the provisions for nounting tion, the rotor and stator should be placed it on the base of the prine nover are shown in locations protected froa the weather and...

  • Page 94: Ventilation And Cooling

    generator Ventilation and Cooling ■et after the frame feet bolts are polled tight: The generator is ventilated with sirjjax^ a. The proper axial clearances exist at the culated through the machine by the bio Journal between the Journal oil throwers and action of the field poles and blower vanq the bearing.

  • Page 95: Fecticn 2.3 - Operation Of Gensratqr

    TURBINE-GENERATOR UNIT Section 2.3 Operation of Generator PRELIMINARY STARTIN6 Further information on insulation resist­ ance is given under the Section on "Maintenance Brush Adjustment of Generator", page 215. Brashes snd brashholders should be exam­ Orying-Out Windings ined before the machine is started up to make sure that the brushes are in the proper posi­...

  • Page 96: Pinal Check Before First Start

    A-C GENERATOR FI6. 6*1 — Connections for Drying-Out Winding* With D-c Welder rent In any part of the winding should not exceed the rated value. Refer to Fig. fl-1. Another eethod of elrcnlatlng current through the stator winding of the generator without subjecting then to toll voltage Is to drive the aacfalne at a convenient speed with the stator windings short-circuited and with,...

  • Page 97: Startino Obbratob

    ■ -r - TURBINE-GENERATOR UNIT Carefully exaaine the interior of the Watch teaperature whenever possible to be cenerator for loose objects such as bolts, sure that none is excessive. nuts, and tools. Such iteas should be reaoved froa the aachine, and care should be taken to Check the brush rigging to be sure that prevent their being drawn into it by aagnetlc the brushes ride properly on the collector...

  • Page 98: Determining Proper Phase Sequence

    A-C GENERATOR S. When the frequencies of the incoming gen­ erator and the system are equal and the volt­ ages are equal but out-of-phase, the frBpg glow with a steady brilliancy. The degr{ brilliancy depends upon the amount of displacement between the two voltages. 6.

  • Page 99: Synchronizing Generators With Laaps

    < (. TURBINE-GENERATOR UNIT of the incoming generator have been aade ap­ proximately equal to that of the systeo. both sets of lamps become bright and dark in unison when the frequency of the incoming generator is slightly different from that of the system, the phase rotation of the generator is the same as that of the system.

  • Page 100: Operation Of Generators

    A-C GENERATOR Hie speed of rotation of the pointer is OPERATION Of GENERATORS proportional to the difference between the frequency of the generator and that of the Single Generator system. If the generator frequency is higher than the systen frequency, the pointer will then a synchronous generator opef rotate in the 'PAST* (clockwise) direction, alone and is not paralleled with other gen­...

  • Page 101: Shotting Dorn Of Generator

    TURBINE-GENERATOR UNIT reactive-load whereas the other nachine is In the following dlscusnion, let it be carrying only its share of the kilowatt-load. sssuned that the total load Is to be divided between two generators of equal rating. 6. When the voltage regulator is set for addition.

  • Page 102: Section 2.4 - Maintenance Cp Gejcratgr

    A-C GENERATOR Section 2.4 Maintenance of Generator GENERAL MAINTENANCE IMPROPER BRUSHHOLDER SPRING TENS I Temperature The spring tension should be sufficient to maintain contact between the brush and i The appearance of excessive teaperatnre collector ring in spite of small vibratis In an;...
  • Page 103 TURBINE-GENERATOR UNIT IMPROPER BRUSHES ing lightly with fine sandpaper. It is very lnportant that this be done; for while these Brushes of the proper grade are furnished spots are not serious in thenselves, they with the sachine. other types give un­ will lead to pitting of the rings and the satisfactory performance.

  • Page 104: Unusual Oeerating Conditions

    A-C GENERATOR UNUSUAL OPERATING CONDITIONS Increased temperature of the insulation. (The effect of temperature on insulation re­ Excessive Current Densities One to Overloads sistance is great, the resistance at 25^5^3 being six to fourteen times that at 750C, The mechanical contact between the brush pending upon the type of machine.) and the ring is never absolutely perfect, and high current density at the contact surface...

  • Page 105: Annual Inspection

    TURBINE-GENERATOR UNIT aolsture, etc., and the test circuit and volt- D-C CIRCUIT age are noted along with the insulation re- alatance. 500 TO 400 VOLTS METHOD OF TEST VOLTMETER THIS SWITCH CLOSED FOR The insulation resistance of a winding / READING LINE VOLTAGE war be aeasured by using either an instrunent called a aegger or a d-c test circuit.

  • Page 106: Cleaning Generator

    .'wimm '•> A-C GENERATOR Claming Generator Step 6 - Reassemble in reverse order, using new gaskets where necessary. At the annual shutdown period, the gen­ Rebabbitting Bearing erator should be cleaned. It Is advisable to renove the dirt from all accessible parts of the generator, but particularly froa the wind­...
  • Page 107 £ PGH- ___________________ S ______ title pake arts DWfl SUB 1 arts ools pare MANUFACTURER - WESTINGHOUSE ELECTRIC CORP APPLIANCE - GENERATOR SPARES application manufacturers data MANUf ACTURERS (QOlH CATALOG NAME OF PARTS OR TOOL Sjduj DWG 4 PIECE NO- SERIAL 3CL<...
  • Page 108 Rating: Type SK 6-83: 7.S KW: 120 Volts; 62.5 Anps; 1200 RPM Characteristics Enclosure ....Dripproof Protected finding ....Shunt Duty......Continuous Rotation ..Cl froa Coco. Did Aablent Teapemture 50°C Teaperature Rise 40°C 100B 24 hours 55°C 1251 2 hours Class of Insulation Drive ......

  • Page 109: Installation

    Unpacking............X Brushes............Inspection............1 Commutator..........Handling............1 Sparking at Brushes........Electrical Connections........2 Flashover ............A-C Motors ..........2 Bearings - Sleeve - Ball and Roller . D-C Generators..........2 Causes of Insufficient Voltage -- General............2 Generators........... Connections - Fig. 1........ 2 Causes of Underspeed (Motors) ..

  • Page 110: Electrical Connections

    ■> INSTALLATION—OPERATION—MAINTENANCE pressing against the coil ends Motor Connection*—Rotation Facing Commutator End or commutator. Never sup­ DUO RAH Bo. 1—SHORT WOURD HOTOR. WITHOUT COHPIRSATIRG COILS port it by pressure on the lockwise otation ______ t A! And P3 to — Lint coil ends or on the commuta­...

  • Page 111: Operation

    INSTALLATION—OPERATION—MAINTENANCE General © On DC Generators Install all wiring and fusing in accordance all in" Keep field rheostat turned to the with the National Electric Code, and local re­ sition (position of minimum voltage) and quirements. line switches should be open. A conduit box is supplied, but conduit and conduit fittings are not furnished with the ma­...
  • Page 112 INSTALLATION—OPERATION—MAINTENANCE This can be done directly by a "megger". is always danger of overheating the windings a megger is not available, the measurement when drying by circulating current through them. can be made using a 100 to 500 volt direct cur­ The inner parts which cannot quickly dissipate the rent (the higher voltage available the more ac­...
  • Page 113 INSTALLATION—OPERATION—MAINTENANCE Worn out brushes are replaced before they can be prevented by cutting away the mica to reach their limit of travel and break contact a depth of one-sixteenth of an inch below the adjacent copper. with the commutator. Remove the free copper picked up by the SPARKING AT BRUSHES face of the brush.
  • Page 114 > INSTALLATION—OPERATION—MAINTENANCE BEARINGS, SLEEVE If grease deterioration has occurred or if dirt has gained entrance to the housing, the When machines are Installed, put a good grade bearing and housing parts should be thoroughly of light dynamo oil in each bearing housing. ■...
  • Page 115 The speed of the generator may be beli with a suitable solvent it should be immediately normal. regreased with Westinghouse grease alter first The switchboard instruments may be spraying or flushing with good lubricating oil. correct and the voltage may be different fro;...
  • Page 116 INSTALLATION—OPERATION—MAINTENANCE HEATING OF HELD COILS In extreme cases clean machine using car- bon-tetracholordie on a cloth. Use sparingly and in a well ventilated place as the fumes are Heating of field coils may develop from any toxic. Do not scrape coils with any instrument. of the following causes: Operating at too low a speed, requiring...

  • Page 118: General Information

    GENERAL INFORMATION 1A. FOREWORD lations it is considered advisable, due to exciter field characteristics, to use an aw.-n Careful reading of these Instructions will clter field resistor to limit the range provide Information for the proper care regulating resistance and improve the sen£i_r. I per,;...
  • Page 119 The six stacks of discs each Identified by PRIMARY - Connected open-delta receives 3«— Westinghouse Style No. 1106396, are connected phase, 3-wire, 60-cycle, generator-; so that all positive half-waves of the impressed volts.
  • Page 120 HANDLING-STORAGE-INSTALLATION Leads should be connected as shown in the STORAGE schematic end connection diagram. Due re^afft", The regulating equipment was carefully should be given to the polarity of the damjfitig-'1 Inspected and checked and then packed for transformer otherwise the moving armaturdiot" shipment with the object of providing protec­...
  • Page 121 TYPE SRAN-3 VOLTAGE REGULATOR Contents Description Page CONTRACT IDENTIFICATION............... Machine Identification ............Voltage Regulator Identification and Drawings ..GENERAL INFORMATION............... Foreword ..................Description of Equipment ............Voltage Regulator Control Element ........Daaping Transformer and Recto* Rectifier Assembly Voltage Adjusting Rheostat ........... Cross Current Compensator ...........
  • Page 122 ✓ CONTRACT IDENTIFICATION Purebater INGALLS SHIPBUIL0IN6 CORP. Manufacturer WESTIN6HOUSE ELECTRIC CORP. 6.0. BH-69I8I-TY and BH-7I04I-TY S.O. 23-Y-2533 MACHINE IDENTIFICATION ANO RATINGS A.C GENERATOR - S.O. 67-P-99‘1 and E8'P>3I6 75 KVA. 450 Volta, 0.8 PF. 3 Fbase. 60 Cycle. 1200 RH D-C EXCITER - 3.0.
  • Page 123 GENERAL INFORMATION lations it is considered advisable, due 1A. FOREWORD exciter field characteristics, to use an Careful reading of these instructions will citer field resistor to limit the range provide information for the proper care regulating resistance and improve the sen and handling of the generator voltage regulat­...
  • Page 124 GENERAL INFORMATION to prevent excessive voltage and hunting. When cuit of the regulator, which changes the posi­ tion of the regulator moving arm and results the a-c voltage rises, the regulator operates, due to increasing coll pull, to insert resist­ in a change in resistance in the exciter f^bVd-l ance in the exciter field circuit and thereby circuit.
  • Page 125 Drawing 18-D-9190-3 Schematic and Connection Diagram tl*e-0003S33f...
  • Page 126 |L^ PANEL f-41 ,.,5 . «' pCjj «* ’*1 —5 ■5—< 7“»? •CUTOUT DRILL -«S--4=- (8 HOLES) © fc=^ 6© Outline Drawing and Drilling Plan Drawing 9-D-1805-3 MH00JI3I0...
  • Page 127 SERIES PARALLEL CONNECTED PLATES (REAR VIEW) SILVER BUTTON ASSEMBLY Internal Diagram Drawing 13-D-6243-3 MB-00M8M1...
  • Page 128 Dwg. 7-0-8980-1 Outline and Drilling Plan...
  • Page 129 Voltage Adjusting Rheostats Assembly Drawing Drawing 97-C-67-2 MS-00018343...
  • Page 130 c=± Cross-Current Compensator — Outline and Drilling Plan Drawing l-D-4638-1 MB-000MJ44...
  • Page 131 WIRING DIAGRAM (REAR Y/£W) <4 SC/t£MAT/C DM GRAM DIALS FAR r/oAf xcohkma © Cross-Current Compensator — Internal Connection Diagram Drawing l-D-4637-7 IUE-OC01SM5...
  • Page 132 Regulator Control Switch -- Outline Drawing and Drilling Plan Drawing 13-B-8976-6 WB-OMMJW...
  • Page 133 <3 © ©r © © SIB-00058S47 Outline and Drilling Plan Drawing 89-C-763-2...
  • Page 134 LIST OF REPAIR PARTS MF6RS DATA Ok” 0«* NAME OF PIECE |£“W STYLE NO. SHOP TYPE SRAN-4 CONTROL ELEMENT 23Y2534 SILVER BUTTON ASSEMBLY 1313989 11(AGIO spring SHORT HI NOE SPRING 1166944 LONG HINGE SPRING 1313985 MAIN COIL U13224 RANGE SETTING RESISTOR III5I03 1296910 REGULATING resistance plate...
  • Page 135 Regional Supervisor c/o Serratosaft Qastells. S. A. 18 de Julio 1110. Montevideo, Uruguay. Cable Address—WEMCOEXPO Venezuela . Westinghouse Electric Company, S. A., Attention of Zone Director. Apartado 1889, EMeflcio la Ceiba 3er Pisa Sociedad a San Francisco 8. Caracas, Venezuela. MIE-OE3383SI...
  • Page 136 Wilmington, Cal......PORT SRSInrat—600 St. Paul Ave.. Los Angeles 17, Calif. Wilmington. Del......PORT ENGINEER—3001 Walnut Street, Philadelphia 4. Pa. Wilmington, N. C......Sales Office—210 E. Sixth Street, Charlotte 1. North Carolina WESTINGHOUSE REPRESENTATIVES IN FOREIGN COUNTRIES Africa ..............See Egypt and South Africa Argentina............Cable Address—WEM00EXPO Westlnghouse Electric Company, S.
  • Page 137 < MEMORANDUM So’ & Mt'OWSISS* TP-SW...
  • Page 138 MEMORANDUM MM0HJJ56...
  • Page 139 © MEMORANDUM 15=3 & hUB-OMUSSBt...
  • Page 140 MEMORANDUM me-ODO]B36C...

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