Text

Rev 0 to Class 1E Motor Min Starting Voltage & Acceleration Time Calculations
	ML20034E391
Person / Time
Site:	Indian Point
Issue date:	09/26/1991
From:	Horowitz B, Thomas Magee; CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:	;
Shared Package
ML20034E389	List: ML20034E388; ML20034E391; ML20034E393;
References
	EGE-00001, EGE-00001-R00, EGE-1, EGE-1-R, NUDOCS 9302260081
	Download: ML20034E391 (64)
	v • d • e

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Modification: NONE cument Page Count: 063 TAG IJUMBERS (none) COMPONElJT(S) AFFECTED Equip. Type 081 MOTOR Structure 07 CONTAINMENT BUILDING Structure 20 INTAKE STRUCTURE Structure 24 PRit1ARY AUXILIARY BUILDING Systein 80 480 VOLT ELECTRICAL l ass (Check as appropriate). A ___ FP _ _ MET _ _ IE _( Non-Class __ enarer/Date Reviewer /Date Approval /Date Super-Confirni. il .nt/ Sign) (Print / Sign) (Print / Sign) Rev.No. cedes Required? Te~gA['I'y~ E h ". 'T3 5 26~O72.~G..t na ciunui e.o(80A ~ ~ a c a s a,. S34 r e er /91hlo) f. j$$bku - 0 ~----- ?! %9!fJ.--- -.b5b"L h kS'fWi---- ---------------------- ~ 7 incurrence (If Required) N l l I l l 9302260081 930219 PDR ADOCK 05000247 P ppg l i i s

i ' LON Dl!T!N CALClJ1AflotMELYSIS !EtnAM S1lEEV 62 EGE-00001 0 1 Dr .fpaspas3s/gaf4 asusamtsipai8 (Le88 lhomas J. Magee ')/jg /q f Bruce llorowitz 9/tc./pj, 1E SWsJ8(T/tttts 780d4(T MO. Class IE Motor Minimum Starting Voltage and Acceleration Time Calculations noe no.

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(.uut.,. J f e e lhe objective of this calculation was to determine the minimum voltage required to start the Class 1E motors and to calculate the accelerati.on times at;the rated voltage and minimum voltage conditions. 9 I (muutat t ua navnesiassunetsons (1) Calculated minimum motor terminal voltage which provided a motor torque of sufficient magnitude to accelerate load using manufacturer supplied speed vs. torque data. Method of calculating motor torques available. at lower than rated voltages is consistent with EPRI endorstd method. l l (2) After calculating the minimum motor terminal voltage required, the voltage drop from the bus to the motor terminal was solved for. Refer to Page 5 for a description of equation used. i (3) The acceleration time was calculated using EPRI ap roved methods and manufacturer supplled values for niotor and load wk i i ~ ....a (1) Industrial Power System Handbook, Donald Beeman, PP 232-233. (2) EPRI UP-4917. Commercial-Grade Motors in Safety-Related Applications ~ PP 6-8 thru 6-10 (3) Westinghouse and Reliance Motor Data Sheets and/or speed versus torque curves as detailed in each individual motor calculation. l ( C a t t L* 4 0 0 h l l (1) The minimum motor terminal voltages and motor bus voltages required I for starting are shown on the summary sheet on page 61. (2) The acceleration times at 100% and 90% rated voltages and at each motors minimum starting voltage are shown on the summary sheet ~^ on page 62. i

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CLai! Thomas J. Ma0ee 'i/l5[i ; Bruce llorowitz 9/7c[<// 1E ~ ~ duSJ8(T/TITLS pa0Jt(T no. Class 1E Motor Minimum Starting Voltage anct Acceleration Time Calculations noo no. inv i INDIAN POINT UNIT 2 CLASS 1E MOTOR DEGRADED VOLTAGE { STARTING STUDY l CONTENTS Page i i i INTRODUCTION 3 SERVICE WATER PUMP MOTORS 6 l l COMPONENT COOLING WATER PUMP MOTORS 1/1 CO!1TAINMENT SPRAY PUMP MOTORS 19 l RESIDUAL IIEAT REMOVAL PUMP MOTORS 24 SAFETY IlOECTION PUMP MOTORS 30 CONTAINMENT RECIRCULATION FAN MOTORS 38 AUXI LI ARY FEEDWATER PUMP MOTORS 46 SAFETY INJECTION RECIRCULATION PUMP MOTORS 53 l I CABLE VOLTAGE DROP & MINIMUM BUS VOLTAGE

SUMMARY

61 MINIMUM MOTOR TERMINAL & BUS VOLTAGE AND ACCELE-RATION TIME AT 1001,901 AND MINIMUM VOLTAGE 62 l l l l

i CCH DIMMI CA1.Cul/IT10HMMI.W15 DET EGE-00001 0 3 - 62 ~[.......n... ef ......u.. 1homas J. Magee q/fgkj u .t g { Bruce Horowitz p/zc.(7f,, .. m <i.,6. Class 1E Motor Minimum Starting voltage and Acceleration Time "9' l Calculations 'ilY ,c..m l 1.) INTRODUCTION t The obj ectives of this study were as follows: o To calculate the minimum voltage required to start each '. i Clasr; 1E motor. i i i o To calculate each motors acceleration time at its-minimum voltage and 100% and 90% rated voltage conditions. l For the purpose of this study, a margin of 15% to 20% motor { l torque above pump torque was used as criteria minimum voltage required for motor starting for all motors.in calculating the i i 2.) CALCULATION METJIOD I The method used to calculate the minimum terminal voltage required to start each motor is as fe.11ows : I. Where manufacturer motor an.1 pump speed vs. torque curves were available, the data for the 100% rated voltage and a lower voltage (90% rated voltage and/or 80% rated voltage) were used to construct a speed vs. torque curve at a minimum voltage. The method used to calculate the torque available at the minimum voltage is. consistent with that recommended in EPRI NP-4917, Commercial Grade Motors in Safety Related Applications, pp. 6-10 & 6-11 (Ref. 2). This referenced torque vs. voltage relationship is: X T available = T rated x (V available /V rated) where T = torque in ft.-lbs. i V = voltage x = a power of 2 to 2.5 .I I

CCN EDISON CId.CU!ATION/rm! MIS utEET 62 EGE-00001 0. 4 c, fB19A858/4A16 e5Wl8N85/Dmia (Lede 1E l Thomas J. Magee <}//g /g / Bruce llorowitz % g /pf e W B J $ ( 1/ t li t 3 F3DJ8(f MO. Class 1E Motor Minimum Startinc Voltage and Acceleration Time j Calculations ., o... nv As a general rule of thumb, the torque developed by a motor varies approximately with the voltage squared, making the value of x in the above relationship equal to 2. Ilowever, due to saturation effects the actual torque l available is slightly less. In order to more accurately (and more conservatively) determine the torque available at a lower voltage, the values of torque available for at the 100% voltage and 90% voltage or 80% voltage conditions were used to calculate a value for the power. This value for the power, x, was then subsequently, used in calulating the minimum voltage required to produce a sufficient torque to start the motor. II. Af ter determining the power, x, to be used in calculating the torque available at a lower voltage, the motor vs. l load data is analyzed to determine where the minimum l torque margin exists. The pump torque _at the minimum i margin speed (typically 80% rated speed) is then j multiplied by 1.15 to 1.20 (which provides a 15 to 20 percent margin of motor torque above pump torque) and the motor terminal voltage to obtain this torque value is solved for. III. The motor acceleration time was calculated from the following formula : T acc = (WK' pump + WK motor) ( A rpm)/ (308) (motor T - load T) where: l T acc total acceleration time in seconds = WKE inertia in lb.- ft.# = motor T = notor torque during increment i (ft-lb ) load T load torque during increment i (ft-lb ) = A rpm shaft speed increment (rpm) = For the purpose of the calculations in this study, the l motor accelerating period was divided into 10 speed ~ increments. The method used in these calculations is consistent with that specified in EPRI UP-4917, page 6-8. W l

3 + CON 131'M CN.CUUlT10H/1Wt!.CIS ulD'T '"4 '[ n. EGE-00001 0, .62 o,,,,,,,u.. 1homas J. Magee Ch5fqi ,,n...n... n,s' [7 g, gg m: .~ Bruce Itorowitz 1E .m,on.o Class 1E Motor Minimum Starting Voltage and Acceleration Time " W ' " " '. ' 'd ' Calculations f;%,y'i ! ave 99.' ~~ 3.) DATA USED 'B A copy of the source of the data used for each motor-calculation is provided with the individual study performed for 'j ! each motor. In many cases, the manufacturer provided a plot of the i.- motor speed vs. torque curves along with data sheets providing [g,r j motor torque values at off design voltages. In some cases, a plot },.l,,,, c of the motor speed vs. torque data was not provided by the i :cb, equipment manufacturer, but instead this data was only listed on data sheets. N '4 4.) CllART

SUMMARY

V Included with each motor study is a chart that providea the following information: Motor torque values at rated and undervoltage conditions o } o Accelerating times for rated voltage and undervoltage conditions b S.) MOTOR TERMINAL TO SUPPLY BUS VOLTAGE DROP After the m.nimum motor terminal voltages required for starting wer e calculated, the voltage drop from each motor terminal back to its supply bus was calculated and included on a separate summary chart. This chart lists the resistance and impedance of each cable run, the minimum motor terminal voltage required for starting and the minimum bus voltage required to start each motor. Also included on this chart were values of locked rotor current and starting power factor. The formula used for calculating the voltage drop is as follows: Line-to-neut. voltagedrop=[(e cos o + IR)2+ (e sin 0 + IX)L r r e r where: er = line to neutral voltage at load end e = angle whose cosine is the load power factor I = Line Current R = Resistance of circuit, ohms X = Reactance of circuit, ohms Line - neutral voltage drop x.[T = Line - Line voltage drop The impedance and resistance values for eacti~~c5151e run weie" taken from the Westinghouse Electric Corporation 480 Volt System Impedance Diagram, con Ed drawing number A201259, for all motors with the exception of the component Cooling Water and Auxiliary Feedwater pump motors. The impedance and resistance values for these notors were taken from Con Ed Calculation No. EGP-00015. t

.= 00ri EDIS0tl CttLCUIATIOWrNt!.ysis $1[EET 'a" EGE-00001 0. 6 62 e, [nutannun .. n n o n c u,, Thomas J. Magee ')//3 /q i Bruce Horowitz cj/gg,[pf 1E SU84El1/181LS ,gygggy ug* Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations ,,o,,,, n, SERVICE WATER PUMPS i I. MOTOR DATA There are six Service Water Pumps at Indian Point Unit 2. Pumps 22, 23, 24 and 26 have identical motors. The following is the motor data for these motors: o Motor Frame Size 509 UPil o Rated Motor Voltage 440 Volts o Rated llorsepower 350 IIP 2 o Pump WK 25.7 lb.- ft. J. o Motor WK2 71 lb.- ft. i II. CALCULATION DATA 4 Data used for the minimum voltage starting calculations for [ these motors includes the following: 1.) Westinghouse Motor Data Sheets for 100%, 90% and 80% ~ rated voltages. 2.) Aurora Pump Speed vs. Torque curve, dated 1/03/77. III. CALCULATION a.) To determine the power, x, to be used in calculating the torque available at a minimum voltage, the torque and voltage data provided by Westinghouse at 1001, and 80% voltage will be used. I At 80% speed, 1440 rpm 100 % Voltane 80 % Voltage 1521.15 ft.-lbs. 904.58 ft.-lbs. x T avail = T rated (V avail / V rated) x 905 = 1521 (352/440) ~ solving for x, x = 2.33 I. rounded up, x = 2.35 i i l

s CON EDISON CftLQJIATIOMml.YSIS DIEIT "v"'8" 'ao8 EGE-00001 0 7 or '62 ieItmaIatthis aavisusa/seta CLas8 Thomas J. Magee 9/is/q/ Bruce 110woritz 9/2c. [F/ 1E sW8JEtt/ft1LE Class 1E Motor Minimum Starting Voltage anct Acceleration Time Calculations not up. piv .l ' b.) The motor torque required at the minimum margin speed, 1440 rpm, is 120 per cent of the pump torque at this speed, or 613 x 735.74. Solving for the voltage required to obtain this 1.20 = torque: 2.35 ll~ 735.8 = 1521(V avail / 440) l. t. i V avail = V required = 323 volts = 73.4% rated voltage. } c.) The acceleration time is calculated and is tabulated on the l included summary chart. The formula used for calculating the acceleration time is: 2. 2 T acc = (WK pump + WK motor) ( A rpm) / 308 (motor T - load T) I IV.) CALCULATION RESULTS Salt Water Service pumps 22, 23, 24, and 26 are capable of starting with a motor terminal voltage of 73.4 % rated voltage, or 323 volts, with an acceleration time of 2.01 seconds. t t M l k h.

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i CDN EQIS0N Cfd,Cll!Ai10WrKt!YSIS DIEEI t8884&42/&Ai8 FGF-00001 0 14 er / 62 aaviahaa/Irai& t __ Thomas J. Magee 9//8/91 Bruce llorowitz 9/2c./91 1E CLas5 'Sk8J8.T/ TITLE Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations 93bd5Ci NO. ~~ MOS MD. RIW COMPONENT COOLING WATER PUMPS I. MOTOR DATA There are three Component Cooling Water pumps at Indian Point Unit 2. Manufacturer data for the motors is as follows: e' o Motor Frame Size 504 US o i Rated Voltage 460 Volts Rated Horsepower 250 IIP o o Motor WK 2 86 lb.- ft. o Pump WK 2 31.5 lb.- ft. II. CALCULATION DATA following: Data used for the purpose of these calculations was taken from the l [l o Westinghouse supplied Speed vs. Torque Curve #663813 o values at 90% rated line voltageComputer printout data sheet j I (414 volts). III. i CALCULATION a.) The motor and pump torque values at 100% and 90% voltage at 80% speed are used to determine the ) used in calculating the minimum voltage that will provide an proper power value, x, to be 1 torque values at 80% speed: adequate torque to start the motor. The followin _100% voltace 945 ft-lbs. .90% voltage 723.5 ft-lbs. solving for x in the following equation : X T avail = T rated ( V avail /V rated) X 723. 5 = 94 5 (414/4 60) X .77 .9 = x = 2.48 i b.) The pump torque at this speed isThe minimum motor and pump torque margin e 477 ft-lbs. To have a 15% margin at this speed, the minimum acceptable motor torque of the pump is 115 per cent torque or 1.15 x 477 minimum voltage that will produce this torque: Solving for the 549 ft-lbs. = T avail = T rated ( V avail / V rated) l
i l CCX DIS 0H C(1CU!ATION/rNi!.YSIS DIEET rnr_00001 0 15 or 62 l',.araininan non..n n u.e s 1E 13ruce llorowitz pg, g Thomas J. Magee q/jS/g j '""1'Ss's"1EMotorMinimumStartingVoltageandAccelerationTime '*"5" "S-C Calculations o,,,, n, N-- . ~. _.. _.. __ 2.48 549 = 945 (V avail / V rated) V avail /V rated =.803 or V avail =.803(V rated) V avail =.803(460) = 369 volts 1 c.) The acceleration time is calculated and is tabulated on the attached summary chart. The acceleration time is calculated with the following formula : T acc = (WK motor + WK pump) (Arpm)/ 308 ( motor T - load T) IV.) CALCULATION RESULTS With a 15 per cent margin between motor and pump torque values, the Component Cooling Water pumps are capable of starting l. with a motor terminal voltage of 369 volts. The acceleration time of these motors at the minimum voltage condition is approximately 3.77 seconds, i e 1
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EGE-00001 0, 19,, 62 J',.......,,,,,, .8V88M89/bnis Thomas J. Magee 'lfl 8 /q f Bruce llorowitz p[g g 1E i Class 1E Motor Minimum Starting Voltage and Acceleration Time "w u t==. Calculations re u k es p. SIW i CONTAINMENT SPRAY PUMP MOTORS I. MOTOR DATA ~ The following is motor data for the Containment Spray Pump i motors at Indian Point Unit 2: o Motor Frame 509 US o Rated Voltage 460 Volts o Horsepower 400 llP o Motor WK2 119 ft.-lbs. o Pump WK2 35 ft.-lbs. II. CALCULATION DATA Data used for the purpose of these calculations includes the following: Westinghouse supplied Speed vs. Torque curve # 663727. o This curve supplies torque values for the pump and motor at 100% voltage and 90% voltage conditions, Westinghouse supplied cumputer printout data sheet with o motor and' pump torque values at 90% rated line voltage (414 volts). III. CALCULATION ~ a.) To determine the power, x, to be used in calculating the torque available at a minimum voltage, the torque and voltage data provided at 100% and 90% voltage will be used. At 80% speed, 1440 rpm the data for this motor is: 100 % voltace 90 % voltane 2110 ft.-lbs. 1662 ft.-lbs. 1 x T avail = T rated (V avail / V rated) x 1662 = 2110 (414/4 60) x .788 = 9 x = 2.26 rounded up, x = 2.3
CON DISON CALCUlllV10 lor.NALYSIS !auly (attutatsua av. n o..,, _f ""* " *"". Ma gee EGE-00001 ,0 - 20 62 (jf f g /q ( Bruce llorowitz p/2 c f,, "" 1E 'lhomas J 'aWadatgfggyLg 8 Class 1E Motor Minimum Starting Voltage and Acceleration Time "unti ae. _ Calculations ngW no. Agv b.) The motor torque required at the' minimum margin speed, approximately 1440 rpm, is 120% of the pump torque at this ' speed or 730 x 1.20 876 ft.-lbs. Solving for the voltage required to = obtain this torque: 2.3 876 = 2110( V avail / V rated) / 2.3 .415 = (V avail / V rated) V avail =. 68 (4 60) = 313 volts c.) The acceleration is calculated and is tabulated on the included summary chart. The formula used for calculating the acceleration time is T acc = (WK pump + WK motor) (A rpm) / 308 (motor T pump T) I IV.) CALCULATION RESULTS The Containment Spray Pumps are capable of starting with a motor terminal voltage of 68% rated
voltage, or 313 volts.
The acceleration time at this voltage is 2.75 seconds. t l I
C0il ED100H CALWIA110lurMLCIS DIEET EGF-00001 0 210' 62 (Lei 6 58v84 mss /bef8 st8naea/bHI& Thomas J. Magee 6f/$f}; Bruce Horowitz 9/pt;/pf 1E ..m o .0, Class 1E Motor Minimum Starting Voltage and Acceleration Time ayadaL1#18ILI n o ,,0. .:V Calculations a '. \\. '; \\ 7,.. '. h 'd i ,j '. ~ ' '. i -i r t... y ,o.. r4DEDCRIPTION: CONTAINMENT:DPRAY=PUNPy - ' o @f M(/ r;;N 4o s 1 + - HPts:'400 5 -TRAME ti 509, US1 W. "n.M JR csafs 1 i "I ' MOTOR',WK"2 i r 119; * , ii; si -y RATE D 'i 34 6 ', at?:- M!T NV.' % Mk N.W-9 A-
VOLTAGEi 4600 Tuf i PUMP,i/M WK ' 2,:.> 3 51 cpugp{ y L ;TORQUEt E1106 EFT-LDS(W nl b dN 4N j
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+ l AccggggAf gra g gng PUMP 10 Rout M010e 10HouE - ACCf LERAllWG 10 ROUE flee in sec. Time in sec. Ilme in sec. 1 $P(fD RPM (ft LBS) 100% v 90% v 68% v 1003 Y 90% v 681 V for 100W for 90% V f or 68% v 0 0 110 1460 1138 606 1350 1028 496 1 10 180 13 1500 1175 623 1487 1162 610 0.06 ' O.05 0.15 l 20 360 30 1470 1145 610 1440 1115 ~ 560 0.06 0.05 0.16 30 540 95 1590 1246 660 1495 1151 565 0.06 0.08 0.16 40 720 185 1645 1280 683 1460 1995 498 0.06 0.08 0.18 50 900 290 1690 1321 701 1400 1031 411 0.06 0.D? 0.22 60 1000 405 1800 1347 747 1595 942 542 0.06 0.10 0.26 70 ,1260 555 1860 1465 7 72 1305 910 217 0.07 0.10 0.41 l P,0 1440 730 2110 1662 _876_ 1580 932 146 0.07 0.10 0.62 90 1620 920 2710 2101 11?5 1790 1101 205 0.05 0.08 0.44 95 1710 1025 3180 M26 1320 2155 1501 295 0.02 0.05 0.15 l 10f AL ACCILfRAfihG tints (sec.3: 0.58 0.80 2.M i i [ u. l 9*'m 6.mec e i
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l l l f l CON 131S0H CEQ11/fil0WrMLYSIS S!ZEI ~ 0. 24 or 62 I i EGE-00001 I nsraasuman .svi s us. ct.ss a j l Thomas J. Ma' gee ()//Sf4f Bruce llorowitz 9/jg[pf 1E j l sumtussus recans so. Class IE Motor Minimum Starting Voltage and Acceleration Time j 'e Calculations noe no. uv N. RES] DUAL IIEAT REMOVAL PUMPS l !!.: ' I I f ':O I. MOTOR DATA ,s } '.,f; The motor data for the Residual Heat Removal Pump motors t 51 installed at Indian Point Unit 2 is as follows: t !( r,.' g.- ~, o Frame Size 5008 P20 ?y o llorsepower 400 llP j. o Rated Voltage 460 volts ((,. 2 o Motor WK 122 lb-ft A o Pump WK 48 lb-ft e II. CALCULATION DATA l Data used for the purpose of these calculations includes the following : Westinghouse supplied speed vs. torque curves #'s o 17131LN100.1, 17131LN90.1, and 1713LN80.1, dated 08/08/87. These curves provide motor and pump torque data for 100% voltage, 90% voltage and 80% rated voltage l conditions. III. CALCULATION l a.) The power, x, to be used in calculating the torque available at a minimum voltage varies between approximately 2 at higher l speeds (70% to 95% rpm) to 2.25 at speeds of 10 to 60 per cent rated rpm. To be conservative, 2.25 will be used for all speeds for l the purpose of this calculation. Analyzing the data provided on the l Westinghouse supplied curves shows us that the minimum margin exists at 95 per cent rated speed. b.) The minimum voltage required for successful starting is calculated with the equation: 2.25 i T avail = T rated (V avail / V rated) where: T avail = T required = 1107 x 1.2 [1107 = pump ft-lbs ~ ~ ' 1326 at 95% rpm] = ~- T rated 0 100 % voltage = 2750 ft.-lbs. 1326 = 2750 (V avail / V rated) l
i 'CW EDIS0N Ctd.CU!ATIOWrNt!.t:IS Dim' " " " ' ' ' " " " * "
EGE-00001 0
25 62 ,......n... 1homas J. Magee et/f g[9( Bruce llorowitz n. 4 1E pj g g, .....o,u.a. 4 i Class 1E Motor Minimum Starting Voltage and Acceleration Time l Calcultions nWW nD. RIW 2.25 .482 = (V avail / V rated) V avail / V rated =.723 or V avail =.723 x 460 = 333 volts t l c.) The acceleration time for the Residual Heat Removal Pump motors is tabulated on the included summary chart. The formula used for calculating the acceleration time is: T= (motor WK2+ load WK ) (180)/(308) (motor torque - load torque) IV. CALCULATION RESULTS 1 1 The Residual Heat Removal Pumps will start with a motor terminal voltage of 72.3 per cent rated voltage, or 333 volts. The acceleration time for the motor at this voltage is approximately ) 1.91 seconds. I i 1 e .plu 4 -~ %-'~-
i i j CON EDISON Cn!.CUIATIOK/rNL!.YSIS DIEET EGE-00001 0 26 er 62 saageaga# ball sgw13mg8/b=%8 CLaft Bruce llorowitz 92 c h/ 1E Thomas J. Magee k/ 8 ft)l e.Onc i Mo. .....ci<isiu Class 1E Motor Minimum Stating Voltage and Acceleration Time Calculations no .0.
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s (* e. i ',, e t J,. l ),.' ' i ] 4 DESCRIPTION: 1 1REBIDUAL i HEAT : REMOVAL i PUNP *. i, % Fit 6 ;9dA;p ;-Ww -4 421,HM '1 1 + ,.s HPia e <f400C 5,. M k ; ? FRAME s: 50 00FP2 0 ?+ &@N M 9 - ;fs ?!;DKi$F kny 'I s ++ ^ MOTOR'MK:2:P 'Q22 V ?RhTEDM :6:n ~ MlWW4' ^ *W l2?id SGMffkR$9s 9 PUMP s WK72 2 ' b D ;484 9lJ - ' GVOLTAGEid 6Di/&2t;@'W@d9
Qi&DM!UN$
3 M 1192i'FT LDSMD : @ c N.;_ # n.9 af W3 . l i/b M""t ZPUHPf P.LATORQUE: j l m + l PUMP ACCitfRAT10W 11ME 10 Rad M010R 10kauf Attit t a A11mG f t*' OLE flee in sec. fime in eet. flee in sec. Time in sec. l 1 SPE E D _ R PM _. _ _f f-L95[ 1_00X_ If _901_v BOX V_ 77. 31_V 1001 y 9_0% V_ 80% v 72.3% v for _100W ( I for 901 V f_or 80% W for 72.3% V b O O O 1657 1294 996 799 1657 1294 996 799 to 180 '1 1668 13u5 1013 804 1650 1287 995 786 "O.06 0.08 0.10 0.13 20 360 85 1635 1277 9?6 758 1550 1192 911 703 0.06 0.08 0.11 0.14 10 540 103 17h8 1413 1106 B62 1685 1310 1003 75 9 0.06 0.08 0.10-0.13 40 720 196 18v0 1498 1144 911 1694 1302 948 715 0.06 0.08 0.10 0.14 50 900 316 2009 1554 1226 968 1693 1268 910 652 (;. 06 0.08 0.11 0.15 60 1080 443 2154 1720 1325 1038 1711 1277 885 595 0.06 0.05 0.11 0.17 70 1260 , 596 2350 1890 1464 1133 1754 1794 k,8 537 0.06 0.08 0.11 0.19 80 1410 792 2614 2120 1720 1260 1822 13?6 928 468 0 D5 0.07 0.11 0.21 90 1620 1013 3116 2520 2027 1502 2103 1507 1n14 489 0.05 0.07 0.10 0.20 95 1710 1107 2750 2163 1736 1326 1643 1056 6?9 219 0.03 0.05 0.05 0.45 101 AL ACC(LIRAflNG 11MI5 (ter.): 0.35 0.73 1.03 1.91 l l I 1
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CON EDIS0d CALCU!AT10VrMI.YSIS 'alEY.T EGE-00001 0' 27 or 62 ~J.......mi. .......n.. u... 1homas J. Magee q[l3 /1I U"C" " F "It* 9[" /9/ 1E .. o n s, .u, ......u..u. Class 1E Motor Minimum Starting Voltaae and Acceleration Time ~ n9h ND. 554 Calculations .' t ; 'T Cl! ) b i ; t ;, e, t'nL L UL n I i. l> ni i VO?. L1 lid 4 OLl/sCd CUC 10nCl? e W-fJS]D
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f 81P 400 W C._1 C 4 60 Ht 3 HZ 00 FOLES 4 fiPH IFL) 1703 ^! fr Pr 91.o -fL /MS 4 h LCCK MiPS (%) 60.t RPM ISTH) 8600 .... = FL 10R0vC (Lb-fil 11'/2 LOCK 10 ROUE (%) 139 j LOAD WK" (Lis-F1') 40 HOTOR WK' (LO-[1 1 1*f FRANC $00cP20 3f aPL1ci.110a. RHR PLa* 'e' P 100 i .,_j,_,,,, wl-y---~~-- -,~ *'g- ~ I ----- - ..'I ),----- 3 g N 1 I I gg L .7_- -~q--- e a a i 4 i i -r-- -----t---~-- 1 i i I I l l 60 ---3--- -J~-- "'~~~'I'-~~ '~~*h- ~~~ '~~~~~~' I 4 ' PI lI I I I g 3 3 4 1 - _ -.- - 's r- -' ~ - 7 - - - ~ ~ ~ I- ' ' ~ ~~~1~~-~~~8~~~~~~~ L OAD % l 1 LAih.lC I g r 70 --7--- ~8 --'-~H--~ ~~~ * - * * ' --~~8~~~~~~8~~--~-' I 3 1 1 8 I I l d a l f J--- _. ' J---- -^ I ( l I l 4 l 1 1 8 g co r-7- 7~-- l- - '~ ~ ~ T - ~ 'I w & '- ~ ~ ~ ~ ~ ~ Q l I I i .3 _a_ 5 - -.4- - - - - i. - g.--.4 gpg Y t 4 1 I I [ 50 -- ' - - -l- - - - - h *- ~ T - - -l - - - ---l-~~'--*-~g-~~~~~~h~~~~-~' I 1 g_ 7_ q --~a-- --y-----g------ a o - fg m -. - u -.r -u- -a-

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CW r.D1:;0H Cn!.Culm10WremlrIs 'av.IT m EGE-00001 0 28 o, 62 ..... n., 6. n ..<i....e.... ct... ~ Thomas J. Magee gfj3 fg g Bruce Horowitz 1E 9,4 g ..,. s..., i n u i ..unc,... Class 1E Motor Minimum Starting Voltage and Acceleration Time n o me. n:w ralenlatint.s 31.'DLtc : _ ; ' IL.clpr7 s1f,h11,,o t, y .t it..... i CALCL8LAlED Af 90% Lll4E VOLlACE CUS10HERi W -14 S I D S.O. 4 753 f Ltd 1 J l tP 400 VCt.15 400 l'il 3 642 00 l' OLE S 4 Ul'H (FL i 1793 PF 98.8 FL AMPS 435 L OC K ANPS (% ) '.,8 8 DPri (SYlit 1800 . 'r e FL 10RCA.fC (LD-ril 1192 LCCK 10GOUC (%) IOS LOAD 6.'H g gg. g. T I 40 FO10R W2 (LB-F12) 122 FRAMEk000P20 2 l APPLIC AT 1 Drd e RiiR plt 4P -1 g IOD i i i T I r ._ _ _ _ _ _e_ _ _ _ _ %h t. ____i__4___t_____. !~ MN l i i l 90 p--- ---)--, -r-----g g----- t i i I __y___ rN _ _ _ _ ( _ _._ _ _ l I l ' i .I .1 I 00 ---r-i-- ---1--- -J ~~ L_-- J--__- L--~~-. I 1 i i 1 6 I a f_ i___ 1____ q. 7_ g l 8 8 I i l
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+ P l 1 t CON ITIS 0H CA!.CuttlV10H/rst!.Y91S DirET EGE 00001 0 29 ,62 ........is ,s .. s ...is.,s 1 es.es Thomas J. Magee 9 // j fql Druce llorowitz f/yg [ff 1E SWaJ818/181L8 ygggggg gg Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations no o. saw i } NULIC ).101 J i 'O I L W Cl Mi l lNC L'l li.R AC !! li l b i J L L CALCUL/.Tl10 AT 00% LINE VOLTACE i i CU010r4CR. W-NSID g l 0.0. t */S3 s t ri '.?* t s l 11P 4 03 VOLis 400 Pat 3 HZ LO POLCC 4 fihi (IL) 17L3 'b l 4 l Pr 98.o TL AnPC 435 LOCK ANPC (%) 514 RPM (CYH) 1000 l FL lOROUC (LO-f T
I l's 2 LOCK 10700E (%) E2 l
LOAD WKg (LD-f1') Ju IO10R W' (LB-f l' ) 122 FRAHC bOODP20 J s APPLICA1] Dad. Ri tR plt 1P 4*' 100 0( I a I i 1 8 s___3 _--__L. _ _.s -_-t__-_. ,I I i 1 8 s i I 7__. i i 1 c,0 (. 3_ I I I i i 1 __a__ p_--_.,_____'-g---__-. I 4 I i 00 --~~~'--- L---
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0, 10,0 20,0 300 I I I I e a 40,0 LO,O 60,0 x curmoa i 3 I i i s I i i 9 P,0 d,0 6,0 e, co.<tn rAcis. I i i i "i i ? 1 f ? ';o i;2 3 33c,cce, I i i i 1 i UESTINGHOUS. LECTRIC CORPORATION
HIMD ROUND ROCK, TEXAS
$1Clu1LOCs,,,rfamp DA1E Ob/06/67 CURvC 17531Ltd.uD. I
4 CCTfDl!ON CA1.CU!AT10WrK11XllS Dlf.ET EGE-00001 0 30 62 8 8&9da a at knt a y a. W 8 B h 8 8 / b e. T a Thomas J. Magee q// g /q g Brucellorowitzeg(. 1E .u..o,,,u, 1 Class 1E Motor Minimum Starting Voltage and Acceleration Time "u s u s av. Calculations an ao. nv SAFETY ITUECTION PUMP MOTORS t I. MOTOR DATA o There are three Safety Injection Pump motors at Indian Point Unit 2. Motor data for the originally installed Westinghouse motors is: 5 i o Frame Size 509 US o Horsepower 400 HP i Rated Voltage 440 volts o o Motor WK 2 38 lb.- ft. o Pump WK Z 13 lb.- ft. II. CALCULATION DATA Data used for the purpose of these calculations includes the } following: Westinghouse supplied motor data sheets. o These sheets give motor torque data for the 100%, j 90% and 80% rated voltage conditions. Pacific Pump supplied Speed vs. Torque curve, dated April o 9, 1970. III. CALCULATION a.) To determine the power, x, to be used in calculating the l torque available at a minimum voltage, the torque and voltage data provided at the 100% and 80% voltage is used. At 80% speed, 2880 rpm, this data is: 300 % volta _ge 80 % voltaae 813.6 ft-lbs 473.5 ft-lbs Solving for x in the following equation: x T avail = T rated (V avail /V rated) x 473.5 = 813.6 (352/440) .i x .582 = .8 l ~~.z. x = 2.43 i l rounded up, x = 2.45 \\
Cut DIS 0tf CALCt!!AT10tOTNAI.YSIS D()If' " " " ' " " * " " - EGE-00001 'a*8 0 , 31 62 anasaaea/661a s a v s a u s s i n s.* a u,omas a. Magee ohs /qi "r"co " r " " 7/u/w (Laf6 1E ) C ass 1E Motor Minimum Startinq Voltage and Acceleration Time "S"" Calculations { t nn no. nu \\ l b.) The required motor torque at the minimum margin speed l l 2880 rpm, is 120 per cent of"the pump torque at thi speed or 1. 0 x 366 = 439 ft-lbs. The voltage i 2 s required to produce this torque is: i 2.45 T avail = T rated (V avail / rated) 2.45 i 439 = 813.6 (V avail / V rated) 78 per cent of rated voltage = Solving for V avail / V rated = approximat = 343 volts. c.) The acceleration time is tabulated on the included summary chart. The formula used for calculating the acceleration time is: 1 T acc = 2 l (WK pump + WK motor) (4 rpm) / 308 (motor T - pump T) i IV. CALCULATION RESULTS The original Safety Injection Pumps are capable of starting at 343 l volts. The acceleration time for these motors at approximately 4.21 seconds. this voltage is l I l
CCW DISON CALCUttiT10H/rm!.ySIS utaf 8a""""" a"- uussien eoo EGE-00001 0 32 ** 62 '*"a"""" ~ lhomas J. Magee 9f/S/qJ Druce llorowitz Pdc-[7f IE-(6md& _...so,,no Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations nok no. any t . * ~
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s 3 e. f. ..,t '.5. ' DESCRI PTION t 18AFETY :. INJECTION '. PUH P ' c. cg m s; ' HP t i.4 4 0 0 - ~'y + W
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TRAMEtJ509US i, /. ~' i i+4 MOTOR WKI2 t A38 J < 4 r. !MN Vf3 ' : RATED:0 W s R 1 .s PUMP. ? WK.~21 A13 - c& 1 R"' . VOLTAGE: 440 A c' ~ .W s ~ _ _ -IPUMP : F. L. c TORQUE 2. 5 90 ' FT _LDB:-.. - i+'.__ l - ^ PUMP ( P0f 0R,100_QUE ACC(Lf R AI(DN IlME 10 ROUE ACititsAllWG 10RDtd t SPE E D RPM tit-tast 1002 V 901 Y 80% v ' TEX v Ilme in sec. Igl_n sec. f eme in sec. Ilme in tec. tout v ' 901 v 801 V 78% W for 1001W for_90% W for 80% W for 781 W 0 0 59 407 313 234 221 348 254 175 162 to 360 30 423 316 ris 23D 393 296 214 200 0.15 0.20 0.28 0.30 __ 20 720 L_ 30 415 320 239 226 325 290 209 196 0.15 0.21 0.29 0.30 ___ 30 1080 53 465 359 268 253 412 306 215 200 0.14 0.19 0.28 0.30 40 1440 69 4 78 36n 276 260 359 279 187 171 0.15 0.21 0.32 0.35 l _- 50 _1 _800-- 139 516 398 . _29_8~. 281 _3 _77 _!_$_9. 159 142 0.16 0.23 0.37 0.42 60 2160 200 568 439 329 309 36a 239 129 109 0.16 0.25 0.46 3.55 70 2520 250 64 9 502 3F6 353 369
222 96 73 0.16 0.27 0.62 0.62 80 2880 366 014 631 4 74 443 44a 265 108 77 0.13 0.23 0.55 0.77 90 3240 4 72 1241 970 235 675 ~
F69 498 263 203 0.08 0.12 0.23 0.29 95 3420 531 1464 1155 699 796 933. 624 ] ___ 368 265 _. 0.03 0.05 0.08 0.11 TOT AL ACritfRAf f kG llMIS (Sec.): 1.33 f.96 3.40 4.21 i i r i ? 5 I \\ l 4 .m O
l l CON ED1!:0H CALEUUIT10Wrm!.rl!S !3 LEET ' " ' " ~ " " " ' EGF-00001 0 33or 62 ,,,,,,,,,u,,,, ..v.....n-n ~ lhomas J. Magee (lfMfql Ilruce llorowitz 9/yg[;7 / 1E -.., u. u.. o Class IE Motor Minimum Starting Voltage and Acceleration Time ..onc e u. Calculations nos no. atv ~ HOTOR DATA PLANT: Indian Poirft Unit Nos. 2 and 3 '3 COMPONENT: Safety injection Pumps .N0 TOR hANUFACTURER: Liestinghouse ta/ge Motor' Division, Buf falo, New York MOTOR SHOP ORDER NUMBER AND/OR SERIAL NUMBER: 67F62502-15 thhough 65 67 HOTOR H.P. RATING: 400 0 3556 RPM HOTOR FRAME SIZE: 509 I 3 l 2 MOTOR IMR = 38 LB-fT l LINE VOLTAGE: 440 (100%) I l' SLIP (PERCENT) MOTORbPEED.(RPN) 100.00' . HOTOR TORQUE (LB-ET) 0 l 95.00 406.7) 180 90.00 414.50 360 l l 85.00 422.93 S40 60.00 360'.53 15.00 720 415.00 900 70.00 448.99 1080 65.00 465.28 -1260. 60.00 461.87 j 1440 55.00 477.56 1620 50.00 495.41 1000 45.00 l 1900 515.94 i 40.00 2160 539.07 35.00 2340 560.22 l 2520 30.00 602.48 25.00 '649.39 l 2800 716.75 2700 20.00 15.00 . ~ 813.57 3060 -10.00 3240 966.40 9.50 1241.38 3258 3.00 1272.7) 3276 fl.50 - ' 3244 1304.07 i 8.00 ~ 3.312 1335.04 7.50 ,1365.09 3330 7.00 - 1393.49 3348 i 6.50 1419 ?B 3366 6.00 1141.21 3304 5.50 1r$4.29 r 3402 5.00 1463.96 3420 4.50 1463.51 343a 4.00 1449,73 3456 3.50 1419.18 3474 3.00 1370.n7 3492 2.50 1293.13 3510 ~ 2.00 352tl 1181.93 1.50 l 3546' -1030.28 .,,,_,_, 835.35 ~ ) ? PAGE 1 '0F 3 1
C0tt DIS 0d CALCUlll110RNNil.f;1S DUIT EGF-00001 0' 34 " 62 i .........ni. .......na. n... ~ Thomas J. Magee 9[13 fq ) Bruce llorowitz 9/26 9/ 1E ...s,n,r. esunts no. Class 1E Motor Minimum Starting Voltage,and Acceleration Time Calculations an ao-88v h0 TOR DATA (C0tiTIt!UED) y h0 TOR Sif0P ORDER fiUMBER AND/0R SERIAL NufIDER: 67F62502-15 through 65-67 '.?* t , LINE VOL'TAGE: 396 (90%) SLIP- ('PERC EtiT) MOTOR SPEED (RfM) 110 TOR TOROUE (LB-FT) 100.00 0-95.00 180 313.34 ...g 319.42 90.00 360 ,;12L33 ,i ? " ~. + 85.00 540 284.10 i l 80.00 720 319 99 ~ 75.00' 900 ~ d6.2i 3 70.00 1080 35L3L 65,00 1260 !356.31 60.00.
1440, 55.00-1620 3f.R.49
'302.35 50.00 1000 3L 30 45.00 1980 416.91~ l 40.00 2160 ~4 6 5"6 5' 438.97 35.00 2340' 30.00* 2520 502 ?? 25.00 2700 '554.84~ 20.00 2880 630 59 ~ 15.00 3060' ~750'183' 10.00 3240 970.21 9.50 3258 '995.61' 9.00 3276 1021.16 ^ 8.50' 32.94 1046.56' 8.00 3312 1071.40 ~ 7.50 3330 1095.12 7.00 3348 1116.99 6.50 3366 1136.05' 6.00 3384 1140.55 5.50
3402 5.00
'1150'~50 r 3420 1160.69 3438 1154'.'94-4.50 e 4.00 { 3456
1135.40 3,50 i
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951.22 2.00 3428 1.50 830,99 3546 615.52 , t'. - 'I ) TACE 2 0F 1 ~
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Ctd EDISON ChtCUIAT10WmaLY':!S ':HrET EGE-00001 0 37 u 62 ,n. n.n u ........nn ct o Romas J. Magee 9//g h Bruce Horowitz 9/;.g h 1E ..., n. n n o n ono.. Class 1E Motor Minimum Starting Voltage and Acceleration Time Ca}CulationS nov no. 6tv i i ! l I i j, !-1 I .i
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CW GISOH CALCUUlT1DWrKtLYSIS DIEET' ' ' " " ' " ' " " ""' EGE-00001 0 38 62 .n.....,..... ~ ...n 1homas J. Magee (i fjgh1( c o. " ce h o @ c[fj 1E .o.mi,iin. Class.1E Motor Minimum Starting Voltage and Acceleration Time Calculations nos av. uw Ig_ ACTOR col 1TA1!JME!JT RECIRCULATIOli FAIJ MOTORS I. MOTOR DATA There are five Reactor Containment Recirculation Fans at Indian Point Unit 2. Motor data for the originally installed motors includes the following: o Motor Frame Size 588.5 o llorsepower 350 HP Rated Voltage 440 volts o o Motor UK - 2 515 lb.- ft. 1 o Fan WK 2460 lb.- ft. 1I. CALCULATION DATA Data used for the purpose of these calculations includes the l following: Westinghouse supplied motor data sheets which provide o motor torque data for 100%, 90% and 80% rated voltage conditions. Westinghouse supplied Speed vs. Torque curves dated o 2/18/77 The curve utilized for the purpose of this calculation is the worst case (i.e. .175 density) curve { Ill. CALCULATION a.) To determine the power, x, to be used in calculating the minimum voltage required to produce a and voltage data provided at required torque, the torque 100% and 80% rated voltage is used. At 80% speed, 960 rpm, the data for this motor is: 100% Voltage 80% Voltage 3081.72 ft-lbs 1920.01 ft-lbs ] x T avail = T rated (V avai3/V rated) x 1920 = 3082(352/440) \\ x .623= .8 i Solving for x, x= 2.1 i
HOTE: At low speeds, x was calculated to be 2.2. This is a more conservative figure and is used for this calculation.
CON EDISOH CALCulAT10Wr.H/tt.YSIS Sl0IT l
~ "
a LGE-00001 O 39, 62 ' o ~ e n sa a n n nun ..u n ne en n Thomas J. Magee qy3 [q[ Bruce llorowltz g, n~n 1g 8W8J8(1/11IL8 Class 1E Motor Minimum Starting Voltage and Acceleration Time pagdsC1 MD. Calculations an ao. uw l a b.) The acceleration time was calculated for a minimum voltage of 71.2 percent rated voltage, or 313 volts. The minimum voltage was determined by calculating the motor voltage required to produce a torque 20 percent larger than the load torque at the minimum margin speed of 95% rated. 120 per cent of the fan torque at this speed is 1.2 x 1490 = 1788 ft.-lbs. I 2.2 T avail = T rated (V required /44 0) l 2.2 1788 3773 (V required /440) = s 2.2 .474 (V required /440) = V required = 313 volts l c.) The acceleration time was calculated with the following formula: 2 T acc = (WK fan + WK motor) (A rpm) / 308 (motor T - fan T) IV. CALCULATIO!J RESULTS The Containment Recirculation Fans are capable of starting with a terminal voltage of 71.2 percent
rated, or 313 volts.
The calculated acceleration time seconds. for the fans at this voltage is 16.96 e
q W 4
) CW EDl!;0H CA1.CU!ATlourm!El'; !]W.ET 0 40 88 62 EGE-00001 + ......iaeu in c o...- Thomas J. Magee q/l3 [ql Druce Horowitz rp/h c /'pg 1E .....Lus.o ,.uur.. Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations m no. uw i .l '.., ' + s.. DESCRIPTION: CONTAINMENT. RECIRCULATION FANSi' yea?D* % it:.
r 4:WatNF " N:UM:
1 HP, 350 TRAME :- 5 8'O. 5 i 'OO"* ~ N ' E!a 3'"' G% 'RATEDf, M,",. Mi' ' 6di %
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-. VO LTAGE : 4 4 0 J ' ~lfC -%if ^U W -dif
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. PUMP.'F.L; TORQUE:1. 2.4 0 9 "FT-LBS P f - 2, / '. .% P M-udN' V;W PUMP ACCILI AAllOW IlME ) IDil0VE 4010R 1DRQUF ACCf Lf R AllNC TORQUF Ilse it. 6et. Ilse in Sec. Ilse in Sec. Ilse in SeC_. 1 SPf f D APM fil LBS) 100% v 90% W B01 Y 71.2% V 100% W 901 W B0% v Tilt V -for 100%W for 90% y for 803 V for 71.?1 V 0 0 i t.0 2222 1765 1347 1D53 2062 1605 1187 893 ,j 10 120 130 2277 1808 1380 1079 2147 1678 1250 94 9 0.54 0.69
0.93 1.22 20 240 110 2341 1859 1418 1110 2231 1749 13DB 1000 0.52 0.66 0.89 1.16 i
30 360 130 2379 1868 1440 1128 2249 1758 1310 998 0.52 0.f4 0.88 1.16 40 480 250 2430 1928 1474 1152 2160 1678 1224 902 0.53 0.69 0.95 1.29 50 000 390 2508 1989 1527 1189 2118 1599 1t37 799 0.55 0.73 1.02 1.45 1 [ 60 720 560 254 7 2017 1558 1207 1987 1457 998 647 0.58 0.80 1.16 1.79 70 640 750 2752 2179 1695 1304 2002 1429 945 554 0.58 0.81 1.23 2.09 80 960 990 3082 2463 1920 1461 2p92 14 73 930 471 0.55 0.79 1.25 2.46 90 1080 1270 3701 2981 2353 1754 2411 1711 1063 484 0.48 0.68 1.09 2.39 95 1140 1490 377.1 3066 2411 1708 2283 1576 921 298 0.25 0.37 0.63 1.94 IDIAL ACCilf RAijWG !!Mi$ (sec.): 5.10 6.82 10.02 16.96 I l I i 1 l I l l 4 4 4Bh
wer.
I I
l CON TDISOH Cn!CU!J1T108/ Twt!.YSIS '3DIT { l FGF.00001 0 41S' 62 ........nn ...n...nn it.. liiomas J. Magee G/jp/q; Bruce llorowl1z 9h.g, 1E .....ainiu. I I Class 1E Motor Minimum Starting Voltage and Acceleration Time ,,g,g Calculations ,, o,,,, ,n ~' - - ~ (. :.. . s. FLANT: Indien l'oint Unit lio. 2 CD:!P0n[Ill: Containment Rec irculat ion f ans M010R tiAMUTACIURER: West'in9 house Lar9e Motor Division, l'uf f alo. !!ew iort 'I' tiOTOR SHOP CRDER flUMClR AN0/OR SCRIAL NUMBER: 67f92631-15 through 55-6R HOTOR H.P. RATING: 350 0118'3 RPM. HOTOR FRAME 512E: 588.5 l 1 2 N0 TOR WRR = 515 LB-f1 'I LINE VOLTAGE: 440 (1001) SLIP (PERCENT) MOTOR SPEED (RPfl) N010R 10 ROUE (LB-f T) 100.00 0 2222.34 95.00 60 ??48.48 90.00 120 2277.47 l 85.00 100-2308.'08 80.00 240 2341.05 75.00 300 2361.52 70.00 360 2379.30 65.00 420 2401.87 60.00 480 2430.08 55.00 540 2465.03 50.00 6n0 2508.18 45.00 660 2473.77 40.00 720 25.46.67 35.00 780 ?637.64 30.00 840 2751.55 25.00 900 2896.24 j 20.00 960 3081.72 15.00 1020 3328.13 10.00 1000 3700.52 9.50 1086 3727.15 9.00 1092 3762.43 l 8.50 1048 3779.84 i 8.00 1104 3824.53 l ,7.50 1110 3859.97 ?.00 1116 3883.26 6.50 1122 3890.89 6.00 1128 3878.59 5.50 1134 3841.29 5.00 1140 3773.07 4.50 1146 3667.12 4.00 3 d52 3515.93 3.50 1158 3311.53 1 3.00 ~ 1170. 2729.06 1164 .3054.02 l 2.50 2.00 1176 2325.62 t 1 50 1182 1841.12 1.23 1185 1551.98 i l PAGE I Or 3. l
l [ CON E!)lS08 CALCUIAT10Wr. HALY.;15 atD:T ..... i o., ...s EGE-00001 0 42 62 .<6 ...i....,,,.. c 5.,,, Thomas J. liagee q.hh f Druce llorowitz gjg 1E ...a.n,n,,s. ,,vsst, au, 1 Class 1E Motor Minimum Starting voltage and Acceleration Time ) Calculations no no.
=
l t*010k inil A ' (C 0rJ111:0[D) MOTOR Sif0P DRDER i:Ut1EER A!JD/OR SERIAL !!Ur1BER: (7f 4?631 -15 throvoh 55 rs L1fiE VOLTAGE: 396 (90r). St lP. (PERCIN1) lOTOR SPf fD (RPM). MOTOR 10 ROUE (L B-TT) +- 100.00 0 17M. 74 g 95.00 60 1705.84 90.00 120 1800.39 '~ ' 1l 65.00 180 18 32. f.0 80.00 240 1858.66 75.00 300 1874.65 70.00 360 1888.42 65.00 420 1905.92 60.00 480 1927.84 55.00 540 1955.01 50.00 600 1988.55 45.00 660 1960.46 40.00 720 7017.42 l 35.00 780 20gg,n6 30.00' 840 2178.66 25.00 900 2301.99 ?0.00 900 2463.43 15.00 1020' 2682.03 10.00 1 OHO 2900.80 9.50 1086 3011.44 9.00 1092 3041.06 8.50 1998 3055.78 B.00 11 04 3093.63 7.50 1110 3124.10 7.00 1116 3145.08 6.50 1122 3153.48 6.00 II28 3145.91 5.50 1134 3118.22 5.00 1140 3065.53 4.50 1146 ?qu2.24 4.00 1152 2002,1) 3.50 1158 2706.56 3.00 ll r.4 2501'.55 2.50 1170 2236.11 2.00 1176 1906.13 1.55 1181 1554.56 / PACE 2 Of a
4 C0ti EDISON Crict!!AilDN/rmtnis gayy . - u u t.. n u.... EGE-00001 0 43 62 e .Sv)8hI3/3m3, Thomas J. Magee t][jg /q, Bruce llorowitz 1E </9/ ..n.,,,,,, Class IE Motor Minimum Starting voltage and Acceleration Time ... act... j Calculations i not ao. arv t:UIDH IA1 A (Cot <T 1t1000) HOTOR Sii0P ORDER NUMa[R All0/OR S[ RIAL fiuttBER: 67f92631-15 t hrouQh 55 08 LifdE VOLTAGE: 352 (802) ~ EllP (PfRCEliT) NOTOR.5P[to (RPM) 100.00 N01:a 10 ROUE (LB.fi) 0 95.no 1347.05 a 60 90.00 1363.2n jpg 85.00 1380.25 )gg 80.00 1348.54 749 75.00 8.20 300 1 70.00 360 l 65.00 1439.'94 4 i 60.00 1452.65 4 l 55.00 .32 540 50.00 8A0 000 l 45.00 1509.'O l 660 40.00 16 7 35.00 1557.91 78 l 30.00 618.49 B40 25.00 1694.79 20.00 ~ f60 1792.53 ~ 15.00 1920.01 1020 10.00 086.92 l 1080 9.50 1006 2.49 9.00 1092 .16 8.50 3M.02 1098 0.00 9.00 1104 1110
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7.50 7.00 .03 1116 6.50 2466.82 1122 6.00 2474.92 ' 0 5.50 2470.62 )3j4f 2450.62 5.00 4.50 2411.*06 1146 4.00 2349.81 gggy 3.50 2266.27 j)5g 3.00 2146.39 1164 -2.50 1984.00 j379 2.09 1773.61 1175 1562.79 IEN e ) ~ j i
l l CON EDISON CALCUIATldrmLYSIS !aini -.l eneasine6ais FGF_00001 0-44 " 6 21 ........<>.r. ~ Thomas J. Magee 9/lS h l ct... 11ruce llorowitz 9 2g/p 1E ....ii<i,u. Class 1E Motor Minimum Starting Voltage and Acceleration Time unusc s n. Calculations a id no no. 7, W )/ ..c....,.. - ~....,... .. h.,........ ... h k.um.hllBCIm?nt 1 tm-J.. g
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T ~ CM FDISM CI1LWil)T10M.NALYSIS 'ltr.ET FGE-00001 0 45 u 62 ,.o n u n ........eun s o. o Thomas J. Magee qh 3 fql Bruce ilarowitz 9//p/pf 1E ..uou..u / nm n o. Class 1E Motor Minimum Starting Voltage and Acceleration Time, Calculations ,,o o. nw _ s a, '._ v'. s 4 apq 98O e P 84 g g ~ I If a _m[' 'i t . u &_ _. _f_. ' -. p I 1. ml.ie. -. - _ _]a w[- .,y .ik -_ w m_ u a =. =.=._ N+ "D* --8* N h 8'8"46 8'* . mum.. .,e,., gum.- g.e.. 4.. .-e mm.mmmm.i.. .= e..- ee e +*- .ammm'- l 4 -_(, o. _. _ _ g, / _..._ _. g- _ _ _ _. --- _ _ - y_..__. .o I
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I CW NDIS0ii Ch!.CUUIT10WrNt! MIS SIUIT T....... n.. n ECE-00001 0 46 62 u, i . w i n.. n n i i u... lhnmas J. Magee 9// Sc /qi Bruce Horowitz / 1E 6/ f,/ $waJ.(t/1fIL. I Class 1E Motor Minimum Starting Voltage and Acceleration 3ime r.us a s .u. Calculations AUXILIARY FEEDWATER PUMP NOTORS I. MOTOR DATA There are two motor driven Auxiliary Feedwater Pumps at Indian Point Unit No.
2. Motor data for the existing motors includes the following:
o Motor Frame Size E5008S Rated Voltage 440 volts o o Horsepower 400 llP o Motor WK 2 44 lb.- ft. o Pump WK 2 14.3 lb.- ft. II. CALCULATION DATA Data used following: for the purpose of these calculations includes the Reliance Electric supplied motor speed vs. o torque curves for the 100% and 80% rated voltage conditions V4769.TES2, dated 4/16/84). (Curve # Ingersoll Rand supplied pump speed vs. o S-T-1, dated 2/11/83. torque curve 34-3308 o R. Eoggia plot of motor speed vs. torques voltage and 87. 5% rated voltage conditions,for 100% rated Included with these curves are pump speed vs. dated 3/31/87. for the valve open and valve closed conditions. torque curves III. CALCULATION a.) The values of motor torque available at 100% voltage and 80% voltage were analyzed to determine what power, x, should be utilized to calculate the minimum voltage required for successful motor starting. The torque values plotted on this curve, curve V4769.TES2, motor. The torques available at 80% rated voltage were found to approximately 64% of rated voltage torques for the entire range of motor speeds. Thus, a value of 2.0 for the power, x, is used to calculate the torque available at a lower than rated voltage. A study performed in 1987 showed that the Auxiliary Feedwater Pump motor was capable of starting at a voltage of 87.5% rated voltage, or 385 volts, with a 25 per cent margin at the minimum margin speed of 2880 rpm.
,e CON 131 SON CALCUUni10WrMI.YSIS DnIT "".'0 0 0 01 o, - 62 EGE - 0 47 ,. u.. u. n .......u..n u" 1E lhomas J. Magee 1f)$[ql Bruce llorowltz 9' C /9/ Cl s 1E Motor Minimum Starting Voltage and, Acceleration Time "am t aa-Calculations au. u. uw b.) To determine the minimum voltage necessary for a successful start, with a 201, margin of motor torque above pump torque, the following formula is used : 2 T avail = T rated (V avail / V rated) where T avail = required Torque to accelerate pump at minimum margin condition. 1.20 x pump Torque at 2880 rpm = = 1.20 x 440 T avail = 528 ft-lbs T rated = 700 ft-lbs l V rated = 440 ft-lbs 2 528 = 700 (V avail /V rated) 2 .754 (V avail / V rated) = t V avail =.87(V rated) l .87 (440) = = 382.8 volts l c.) The acceleration time was calculated with the following formula: T =(motor WK + pump Wid (A rpm)/ 308 (pump T - motor T) T= (44 + 14.3) (409)/ 300 (pump T - motor T)
NOTE:
As previously mentioned, the Auxiliary Feedwater Pump motor speed vs. torque data consists of actual test data. Because of this, the minimum voltage that the motor could start with an acceleration time less than five
seconds, disregarding the requirement for a 20 per cent margin is tabulated on the included summary chart.
The minimum voltage that would be capable of starting the Auxiliary Feedwater Pump motors in less than five seconds is 84 per cent rated voltage, or approximately 370 volts. The acceleration time at this voltage is 4.88 seconds. The minimum torque margin at this voltage is approximately 15 per cent. ,.*.e
CON 1:DI.';08 CALCufflT10WrKil#;1S DID:T EGE-00001 0 48 62 e, J,.....,n <t... ...i....no Bruce llorowitz / 1E Thomas J. Magee ej /lg jgl 7/zg/pf '"""[s1EMotorMinimumStartingVoltageandAccelerationTime a*- Cla Calculations IV. CALCULATION RESULTS Factory test data was used in plotting the speed vs. torque curves for the Auxiliary Feedwater Pump motors. Knowing this, a calculation was performed to determine the minimum voltage that could accelerate the motors in less than five seconds without being limited by a minimum 20 per cent margi'n between motor and pump torques. The motors were found to be capable of starting with a voltage of 84% rated voltage, or 370 volts, in 4.88 seconds. At this voltage there is a 15 per cent margin. l l I 1 i l i l ~ l l
p CON 13l';0d CM.CUUli10NmM.r;1S WIT '"""'"'***+u- . i e i s i v., ng EGE-00001 0 49 62 er l.......,,,,,, .svs,...iu.,, '1 E.. Druce Horowitz un-9/I'S,/0I 9/zc.f97 Thomas J. Magee a .n.,s.,,s, "wm t ru. Class 1E Motor Minimum Starting Voltage'and Acceleration Time Calculations 1. s nok nu. ,m i
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' fI e e I i DESCRIPTION ? AUXILIARY < TEEDWATER : PUMPS ':, r ~?-~ ' i? ' 'M'l 4 x ,t $4
HP:M*400-"
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+ j }jfi r PUMP 3 F. L.1. TORQUE t! 67 0i rT-LD81 G5 " ;; G " W f-- __x-l PUMP ACC[LtRAfl0 8 flott 10 ROW MOTOR 10 ROVE ACCitf RAllWG 10830LK flee in sec. Time in sec. f tme in sec. RPM (ff-TBS) 100% V 90% V B4% V 1001 V 90% V $4% V for 100%V for 90% v for 84% V O 105 405 328 2 56 300 223 181 400 26 434 352 306 406 374 2F6 0.19 0.23 0,27 800 34 457 3f0 322 423 336 2n8 0.18 0.23 0.26 1200 75 470 361 332 395 306 257 0.19 0.25 0.29 1600 135 485 393 341 350 258 206 0.22 0.29 0.37 2000 216 495 401 349 2 79 185 133 0.27 0.41 0.57 2400 297 562 455 397 265 158 100 0.29 0.48 0.76 2600 419 680 551 480 261 132 61 0.29 0.57 1.24 ~3200 554 92T 751 654 3 73 197 100 0.20 0.38 0.76 3400 620 1175 952 822 555 332 209 0.14 0.23 0.36 TOT AL ACCELER AtlWG TIMIS (sec.): 1.96 3.06 4.88 I I I ja.
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n oi. n,.,. lhomas J. liagee q/g/qj Bruce llorowitz 1E gg .~o.,,,,o Class 1E liotor liinimum Starting Voltage and Acceleration Time 'mu s ao. Calculations not noe Siv SAFETY I!!JECTION RECIRCULATION PUf4P fiOTORS I. 140 TOR DATA 140 tor data for the Safety Injection Recirculation Pump motors is as follows: o liotor Frame Size 588.5 Rated Voltage 440 o o Horsepower 350 o 14otor WK 2 313 o Pump WK2 130 II. CALCULATION DATA Data used for the purpose of these calculations includes the following: Westinghouse supplied motor data sheets for shop order o motors 67F63897-1S through 4S-67 for the 100%, 80% voltage conditions. 90% and Westinghouse supplied computer printout data sheets for o the 100% and 90% rated voltage conditions. III. CALCUIliTION a.) To determine the power, x, to be used in minimum voltage required to produce the required torque, calculating the and voltage data provided at the 100% and 90% voltages is used. The the torque value of x was found to be approximately 2.2 for this motor.At 60% speed the data is: _100% Voltaae 90% Voltaae 2386.40 ft.-lbs. 1889.42 ft.-lbs. x T avail = T rated (V avail / V rated) x 1889.42 = 23 8 6. 4 0 (3 96/4 4 0) x .792= .9 solving for x, x = 2.2 b.) The minimum motor and pump torque margin exists at 94.5% speed, 1134 rpm. The pump torque at this speed is 1421 ft.-lbs. Solving for the voltage required to produce the required minimum torque of 120 per cent of 1421, or 1705 ft-lbs: 0
1 p e " * "." " 0 CCN DIS 0d CALCUIATIOK/r.HA!.YSIS DIEET 54 62 EGE-00001 _f.. n.. u.. n ........,.,i e t.n 1E Bruce Horowitz gg Thomas J. Magee 9//g fq l Class 1E Motor. Minimum Starting Voltage and Acceleration Time ""d"' "8-Calculations .o.. nw 2.2 T avail = T rated (V avail / V rated) 2.2 1705 = 3711 (V avail / V rated) 2.2 .c .46 = (V avail / V rated) V avail /V rated =.71 or 71 rated volt' age b 312 volts 4 c.) The acceleration time is included on the attached summary chart. The formula used for calculating the acceleration time is: 1 T= (motor WK + pump WK ) (Arpm)/ 308 (pump T - motor T) T= (313 + 130) (120)/ 308 ( pump T - motor T) I IV. CALCULATIOli RESULTS The Safety Injection Recirculation Pumps are capable of starting with a terminal voltage of 71 percent of rated voltage or 312 volts. The acceleration time at this voltage is approximately 2.9 4 seconds. i i 1 l t b*. i i
r 1 anvisiCa ean CON EDISON CAlill!AT10Wrdu!3 SIS DIEET EGE-00001 0. 55 62 0, P&89ASBR/be18 aaVISkts/3mTI (Lagg "~ 1E Thomas J. Magee 9 fig bl Bruce llorowitz pf g gf ygggggg pg* suadaC1/7111 Class 1E Motor Minimum Starting Voltage and Acceleration Time Calculations aOs a0. erv t ' DESCRIPTION: SAFETY : INJECTION RECIRCUMTION "PUNP HOTORS- ,J 'HPt?350, TRAME 500457, 3: .W .it ' $0 TOR WK72 1313' 'l, RATED??'E 6U 12 "i. PUMP. WK* 2 : ~.130 ? VOLTAGE: 4 4 0 E'
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't 4 . PUMP F.L. TOJ1QUE !155 4 - TT-LDB ' AC(f t[tA11DN 11ME PLMP TcmotK M010e iteout attrttaattwG tonoJF fime in sec. Ilse in sec. lise in sec. 1 EPE ED kPa (ft TBS) 10U1 V 901 v 711 v 1001 v 901 v 711 V, f or 1031V for 901 Y for 711 F D 0 0 2067 1641 972 2067 1641 9 72 to 120 16 2120 1683 996 2104 1667 981 0.08 0.10 0.18 , 20 240 64 2161 1731 1025 2117 1667 961 0.06 0.10 0.18 30 360 143 2219 1760 1043 2076 1617 900 0.05 0.11 0.19 40 480 235 2270 1800 1067 2036 1565 832 0.05 0.11 0.25 50 600 398 234T 1t59 1103 1949 1461 705 0.09 0.12 0.24 60 720 5 72 2366 1B89 1122 1814 1317 550 0.10 0.13 0.31 70 640 7BD 25M 2053 1214 1804 12 73 435' O.10 0.14 0.40 80 960 1018 ??O4 2330 1365 1885 1311 346 0.09 0.13 0.50 90 1080 1303 3518 2M2 1653 2214 1539 350 0.DB 0.11 0.49 94.5 1134 1421 3712 3013 1745 2291 1592 324 0.03 0.e5 0.24 IDI AL ACCELIRAllut 11Mrs (sec.3: 0.81 1.10 2.94 I m . e emm %e 1
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I l M TDIW CALCUfflT!0H/Tmtr.;js !,urfy i-un.,,. u i o u,. EGE-00001 0 59 62 [,. o m..,,,, n y Bruce llorowit2
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......,..,o Class 1E Motor Minimum Starting voltage and Acceleragtion Time ...nce.. Calculations .g. 5 nou.. ( MOTOR DATA - ~ (CollT I!!UEO) .g-MOTOR 5110P ORDER !! UMBER AN0/0R SERIAL !!Ul18ER: 67f63897-15 through 45-67 LiliE VOL'TAGE: 396 (90%) t '., i l SLIP.(PERCEffT) MOTOR SPEED (RFM), MOTOR TORQUE (LB-FT) ' a 100.00 O' 1641.06 ~ 90.00 120 1682.57 95.00 60 ,1661.10 m 85.00 180 1705.64 i 80.00 .240 1730.50 l 75.00 300 1746.39 i 70.00 360 1760.39 65.00 420 1777.90 50.00 480 1799.56 55.00 540 1826.18 50.00 600 1858.81 45.00 660 '1833.98 l '40.00 720 1889.42 l 35.00 780 1958.07 30.00' 840 2052.72 25.00 900 2172.75 ~20.00 960 2329.63 15.00, 1020 ' 2543.60 10.00 1080 2841.80 9.50 1086 2873.27 ~9.00 1092 2903.95 t 8.50 1098 2919.51 8.00 1104 2959.92 7.50 1110 '2993.92 7.00 1116 6.50 3019.31 6.00 1122 3033.37 5.50, 1128 3032.74. 5.00 1134 3013.36 1140 2970.39 4.50 1146 2898,20 4.00 1152 2787.94 3.50 1158 3.00 2648.96 2.50. 1164 2457.0B 1170 2204.67 2.00 1176 ~ 1886.65 I.57 1181 1554.41 i ( rAct 2 Or 1 ^
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, u v v u u, 21.M a a. cr w o u l l,. _ 4 0e *
..,,- P 3
a m m ua ..os Cui rDISM cit!.Ct!!ATIOR/rM!.YSIS DIEET EGE-00001 0 62 6,2 Of 8 8 8 f a s a a / sin s a inun..n.. 1E Thomas J. Magee q/)g/4; Bruce llorowitz g g / i r .......,,f,,, l Class 1E Motor Minimum Starting voltage and Acceleration Time .. m n... l Calculations nub m0. ggy l = MINIMJM motDR 1[RMihAL & Etus VOL1 AGE AwD AC[f ttpATION 11ME Al 100%, 901, & mts.t vot1 AGE e Y ng'wintM sot'1 AEE &lDillkED. ICm'$1 AE11NG "- AhCF(f tN1)DMb ACCf t t R.A1)DW ' ACClifRkt DNN ^ mo1DR .... a. ...,,,... ~,
bisCt tf+itDu
, g<, * ,.A) natoR (vettst'. ? " At etes (volts)i 11mt (sec.) piu.1 y itME (sec'.),.100%v 11mf (See:)' 9Civ s CONI AlWMf W1 if'RAV PLMP (21) 313 337 2.75 0.58 0.80 CONI Aluptst SPEAT PLMP (??) 313 335 2.75 0.58 0.80 $Af t1T INJIC110N PtmP (21) 343 365 4.21 1.33 1.96 SAf f tY thJlCllDel PLMP (22) 343 367 i ?) 1.33 1.96 l 5Af flf INJECTION PLMP (23) 343 3 65 4.21 1.33 1.96 e Ctmli AlWMf 61 Rf tIRCutallDW f As (21) 313 354 16.96 5.10 6.87 Ctw1 AlwMtw1 Ritiacut At tou I Aw (22) 313 356 16.96 5.10 6,87 { [DNI Af WMf kl RE CIRCUt Alltml fAW (23) 313 359 16.96 5.10 6.87 cow 1 Alunist REtistut At tow # Aw (20 313 362 16.96 5.10 6.87 I COW 1 AINHENI Rf(IRCUt AT)DN f AN (25) 313 370 16.96 5.10 6.87 to Nf AD El Rf CIRCill AllDW PtMP (21) 312 358 2.94 0.81 1.10 to Hi AD 51 ElflRCut AllON PtMP (22) 312 357 2.94 0.81 1.10 slavitt WAlf R PtmP (22) 323 357 2.01 0.50 0.70 sinyttf WAf f R f'tMP (23) 323 355 2.01 0.50 0.70 sf pvitt WA1(R PLMP (24) 323 361 2.01 0.50 0.70 Ef tvlCE Watf R PUMP (26) 323 361 2.01 0.50 0.70 AusilI ART fitDwAIER PLMP (21) 370 397 4.68 1.96 3.08 Auxillatt fif DerAlta PLMP (23) 370 395 4.88 1.96 3.08 CtMPowf h1 (totlNG PLMP (21) 369 403 3.TT 1.14 1.80 CCNPOWEW1 CDat ING l'tMP (??) 369 415 3.77 1.14 1.80 cinPowtwf trot ING PLMP (23) 369 411 3,77 1.14 1.80 EI5 IDDAL st Al ef HDVAt f'tHP (21) 333 3t.5 1.98 0.55 0.73 af s tDuAt af A1 LinDvAt MmP (??) 333 362 1,91 0.55 0.73 'N Y* .,--M
t i t 1 l l t h i I i ( i 1 l 1 l l l l l _,}}

ML20034E391

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SUMMARY

SUMMARY

pc 2:=

mm

._ e= n nu

m

n

=

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ML20034E391

Text

SUMMARY

SUMMARY

pc 2:=

mm

._ e= n nu

m

n

=

Navigation menu

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