ML19210A660

Forwards Dec 1977 Vibration Testing Data for Decay Heat Pump Shafts DH-P-1A & DH-P-AB.No Corrective Action Required Due to Low Vibration Levels

ML19210A660
Person / Time
Site:	Crane
Issue date:	01/05/1978
From:	Herbein J METROPOLITAN EDISON CO.
To:	Reid R Office of Nuclear Reactor Regulation
References
GQL-0007, GQL-7, NUDOCS 7910300690
Download: ML19210A660 (5)

Text

JISTR:'3U~!ON AFIER ISSUANCE OP.. TING LICENSE v.3. NuCLsAM mEGubATCRY CCMMISSICM CCCEST NUM SE R NRC.sCnu 195 EO ~ AT*l sn>

NRC DISTHIBUT1CN =CM PART 50 DCCKET MATERIAL l

FRCM:

cats CP cCCuMENT l

Metropolitan Edison Company 1/5/78 i

Tc-Mr. R. W. Reid Reading, Pa.

=AT aECsivte j

J. G. Herbein 1/9/78 hT EM C NCTCMl250 PMCP INPUT PCMM NuMsEM CP OOPtES RECEIVED hMIGINAL yNCLAE3tPIEQ i

S l a M e.D C c="

ENCLC3U p s ESC.9tPTICN Consists of the December vibration testing.

data for DH-P-1 A & DH-P-1B (Decay Heat Pump I

Shafes)....

I (2-P)

(2-P) 1 PI. ANT NAME: Three Mile Island Unit No. 1 i

itJL 1/9/78 i

SArt.I FOR ACTICN/INFORMATICN i

l i3 RANCH CHIET: (7) i SEI.C i 4 I

i i

I I

I i

I 1

i l

i i

l I

f

/' %

INTERNAL OlSTRIBUTICN GIG M6 i i f I

! I t

6e mi l i I I I

I

't

-- i n i i i

I i a i

i i

l I

l i pen s wa r-n i i i i f i i

i i i i i i t--n m i i t

i I

i

-e.m,

< van 1

l I l I e

'm a n i i i

6 t

i

_t I I i t i I ut-*v 7 m -ce t i

! I I I i

tJ, COT- ?;S I i l

I I

I t', VC00CCE i t i i t

I i

I t

i I l

I i i I

6 I I i

i ;

, i i

I I

i l i s

i I

i EXTERNAL CISTRIBUECN

(

C' NTSCL.'1LMSER r

L20R: HRFYisbur@_

MR.

8 i

In i f i i a

0090149

_t,

SS:C j

AC.12

_3 CTS SEi! CAIICCR'1 M

i.

/. -

//

1493 123 7916'360 6 9 o N,

/

h K 5T 67 f',Y h.

.2 A i H,a,_r, n

- - mam

/ METROPOLITAN EDISON COMPANY

/

POST OFFICE BOX 542 READING, PENNSYLVANI A 19603 TELEPHONE 215 - 929-3601 January 5, 1978 GQL 0007

.. ~ ~ ~

,3

,;*\\

.,N tr s

s; ~ -

Director of Nuclear Reacter Regulation

. ' N,. o 1f/-l m.s x'M 3

Attn:

R. W. Reid, Chief

_. %,. 7, k/ H.!

Operating Reactors Branch No. h n,-,y,

G-N U. S. Nuclear Regulatory Ccnmission

..- T* N ~' A N Washington, D.C.

20555

" #d ',N? % ff /

Q/

'-s b ) Q 3.-k "aar Sir:

Three Mile Island Nuclear Station Unit 1 ("MI-1)

Docket No. 50-289 Operating License No. DPR-50 Decay Heat Pump Shafts In accordance with Metropolitan Edison Company letter cf September 8, 1977, GQL 123h, Paragraph 1. A. Vibration Testing, attached please find the December vibration testing data for DE-P-1A and DH-P-1B.

DH-P-1A Met-Ed Generation Engineering has reviewed the December 5,1977, vibration testing data for DH-P-1A and has noted that the 18,000 cpm data for locations AH and BH exceeds the November h,1977, baseline by more than 505. However, based on the IRD Vibration Severity Chart, the December 5 readings are indicative of a "gcod" running pump.

DH-P-13 Met-Ed Generation Engineering has reviewed the December 6,1977, vibration testing data for DE-P-13 and has noted that the 900 era data for locaticas AV and 3H exceeds the November 3,1977, baseline by more than 50%. However, based on the IRD Vibration Severity Chart, the December 6 readings are indicative of a "gcod" running pump.

It should be noted that changes in amplitude of 50% or more are insignificant, when compared to the extremely low baseline values, and that such changes can be expected.

1493 124 7800901A*

R. W. Reid, Chief January 5, 1978 GOL 0007 Based en the above, Met-Ed Generation Engineering has ccncluded that since the vibration levels of DH-P-1A and CH-P-15 are so low, no corrective action is required.

Sincerely, i

J. G. Herbein Vice President-Generation JGH:PJS:gs Attachments 1493 125

BV t';l AV MOTOR BH AH b

. _ ~,,, ~,~., j- -[ ; e - -- -

~

y %,e t.2-2.e a

_O.!C_}'._'-, - ~ _,

~.-

,3-

.._..,22-

. - c-r

-~e-

__,l','~

--'"l&

?~

]-' -~

.;;.~

- ~~~- -

- %1

. J n_

4~ -

"Q _ __ _*' {. '_ _ Z,_,_

_. -* -"2 f_.T_7.

Wr_"__. * -T W- "_'-[7%

~"*

~

~ ~~

'CPt4

~900 1800 3600 18,000 g

O.14 0.12 0.o7 0.027 ar i

BV a 0 to o '3 o o

o2 i2-os-77 m1 w

H AH M o.15 0.25 0.12.

o.025 o

CLe gy 9 0.20 o.is o.io 0.025 D _.

CPM 900 1800 3600 IB,000 AV 0.2 c, o.i9

c. i2.

o.033

_.'x BV A

o.19 0.12 0.00 0.030 12 - oG - 77 z

ta vc AH e

o.4 o.is 0.20 o.ois e

a s

SH o.5 c.07

o. i9 o.ois x cc. ea,a bases m velo 4 meawemenh 1493 126

5ASE_.E 1 ~s i

BV Ep AV Y

MOTOR B){

A P.

[

.=. b.

}_

1

~

T_{.} _ ^ir.

CPM 900 1800 3600 18,000 O. 2. 2.

O. l fo 0.19 0.02.3 g

E i

BV g 0.24 o.in 0.06 c.oie,

,i_o4_77 tu2 w

Al-l N 0.20 0.32.

O. 2.1 0.ot3 d

sn.

Q 3H o.18 0.32 0.22 o.012

)__

CPM 900 1800 3b00 IB,000 A\\/

0.09 o.2.3 o.is o.cz2.

g E

0.09 O.16 0.11 0.017 gy II 77 I

a tu AH a

o^6 o '2 0 22 0oA e

e BH o.oe o.22

o. i 2.

c.oii 6 Ceuccked 'oased ce, veloc;h MeaNeemeM5

}493 127 i