ML20203P944
| ML20203P944 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 04/29/1986 |
| From: | Warembourg D PUBLIC SERVICE CO. OF COLORADO |
| To: | Berkow H Office of Nuclear Reactor Regulation |
| References | |
| P-86313, TAC-51242, NUDOCS 8605080387 | |
| Download: ML20203P944 (6) | |
Text
{{#Wiki_filter:' 1 i O Public Service ~ 2420 W. 26th Avenue, Suite 1000, Denver, Colorado 80211 mo s.-o. Company of Colorado April 29, 1986 Fort St. Vrain Unit No. 1 P-86313 Director of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attn: Mr. H.N. Berkow, Director Standardization and Special Projects Directorate Docket No. 50-267
SUBJECT:
Safety Parameter Display System
REFERENCE:
PSC Letter, Warembourg to Berkow, dated February 19, 1986 (P-86119)
Dear Mr. Berkow:
The purpose of this letter is to clarify four points in the above referenced letter.
- 1) Clarification of PSC Response to NRC Comment Number Two (2)
PSC will limit the available fault to the isolator cabinet by installing a 4 amp Amp-trap Form 101, Catalog Number A13Z fuse in the distribution panel, in series with a 15 amp circuit breaker.
- 2) Clarification of PSC Response to NRC Comment Number Four (4)
The fuse f1 is not a standard feature of the iso)ator circuit cards provided by Energy incorporated. Thus the fuse was not present during the testing described by the Test Report (Attachment 2 to P-86119) that was supplied to substantiate qualification of the circuit card. g CP e605000387 860429 11 DR ADOCK0500g7
'P-86313 April 29, 1986
- 3) Clarification to Class IE Rating of Isolators The isolators being purchased by Public Service Company of Colorado are being purchased and are to be installed as Class IE equipment.
- 4) Clarification to the Handwritten Notes on Attachment 2 to P-86119,.Page 7 of 9, (i.e. 60 hz RFI Greatly Exceeds .25 mv and 60 hz RFI Greatly Exceeds 1.5V).
The RFI voltages were caused by using a variable resistor with 480 volts applied across it to control.the current in the test. These RFI voltages were measured before the test started. Attached is a. copy of a letter from Energy Incorporated explaining these notes. Should you have any questions regarding these clarifications please contact Mr. M.H. Holmes at (303) 480-6960. Very truly yours, J. p thus~d D. W. Warembourg, y Mahager Nuclear Engineering Division DWW/ MEN:pa Attachment
- Attachment to.P-86313
~
/ d INTERNAL LETTER EI-90-028-78 TO: Ken Merrill REF: SE-MTW-001-86 FROM: Matt Weseman O M DATE: April 18, 1986
SUBJECT:
Clarification of the Background floise Level During the Analog Isolator High Voltage Fault Test (WAP EIP-004) DISTRIBUTI0ti: DWADD0UPS, WAP EIP-004 File, SE-MTW-RF The attached report should clear up all questions concerning the test results of the Analog Isolator High Voltage Fault Test. 1 The questions arose when copies of this test package were circulated without
~' the attached test data included.
Note: The fault test data is recorded on a 30 foot section of chart paper. Since the completed test record copy of the test procedure contains ab-solutely no test data (only test results), the questions about the test and its validity are well founded. In order to dispell these concerns, I have written the attached report and attached a copy of part of the chart recording. Unfortunately, due to the copying and reduction processes, the resolution of the chart is practically nonexistant. If it helps a little, I'll have achieved my goal. dll F1 ,
ENERGY INCORPORATED CALCULATION / WORK SHEET P. O. Dox 736 M Idaho Falls, Idaho 83402 SHEET 1 OF 2 CLIENT: PROJECT: El Products. REF: WAP EIP-004 COMPONENT / SYSTEM PgRPAR D BY: DATE: CHECKED BY: DATE: Analoa Isolator 480 V Fault Test 'N/ - 4/18/86 N/A Introduction On December 18, 1984 the four channel analog isolator assembly (00798 series) was tested for high voltage, high power fault isolation performance. In this test the output (non 1E) side of one of the isolator channels was subjected to a 480 VAC rms,10 amp minimum fault, while the isolator inputs (1E side) were monitored for isolation. The actual test was performed to Energy Incorporated procedure EIP-30 and under the auspices of work activity package (WAP) EIP-004 (Energy Incorporated Products). During the test a high amount of electrical interference was noted. (The level of measured noise on the signal lines significantly exceeded the signal level of the acceptance criteria.) This note has raised questions and concerns as to the validity of the test. Scope The purpose of this report is to explain the interference problems encountered in the test and to show that the results of the test were indeed valid. flote: This test was performed, not to determine the level of isola-tion, but to find out if the isolator could withstand the fault and still maintain a specific level of isolation. Discussion Due to the relatively high voltage and power requirements for the test (480 Vrms and ~5000 watts), it was performed in a very noisy environment. Radiated interference from the incoming power line resulted in ambient noise levels as high as 85 times the anticipated signals. flote: This is to be expected in any system where .25 millivolt signals are in a 480 Vrms environment. Because of this high system noise level, all signal measurements were made by determining the changes in signal levels occurring at the point of fault application. (Since all electrical signals were at the same frequency and phase, this is a valid method.) Therefore, the signal levels were noted and recorded before the application of the fault, (t;his explains the notes on page 7 of WAP-EIP-004, section 6.0), during the fault, and after the fault. w - ... .
l J 2 ENERGY INCORPORATED CALCULATION / WORK SHEET
/ P. O. oom 73G SHEET 2
_OF 2 Idaho Falls. Idaho 83402 CLIENT: PROJECT: ~ EI P rod u c t s .- REF: WAP ElP-004 COMPONENT / SYSTEM PR,Ep Eg,0Y: DATE: ' CHECKED BY: DATE: Analog Isolator 480 V Faul t Test N/.,, 6?' 4/18/86[- 'N/A The results of the test showed that the actual signal levels (without the noise) were on the order of < .18 m Vrms (maximum chart resolution, signal level changes were imperceptible). Since this level is below the acceptance level of .25 m Vrms (1.5 Vrms on the power supply lines) the goal of the test was achieved. Conclusion As shown in WAP EIP-004 and as discussed above, the analog isolator passed
-the high voltage fault isolation test with margin.
The acceptance criteria of the test was met. This shows that the analog isolator provides more than [20 log (.25m/480)] 126 dB of isolation at 60 llz Note: The above test results and conclusions are apparent when the test WAP is reviewed in its entirety (chart recordings included). liowever, if the test WAP is to be reviewed without the test data then the addi-tional explanations set forth here should be included.
- /.
-;y
- Dl _ ;__ . n.3 i T ' >! _. ; ['
' *tt _
- I k '.' I i' .
tAj. '
.4 ;1l!
Q9 4j l / M , to y ,, /, g* ,y /],, p .l l 3
- : [i ' # . ( I4 4 /.i p /[ . t'! I ri . , 'f7
! 3 hl) UQ
' Li:- -a ii. ;ti. -
I'* : I::.. i' ! i . iii
='-
i i i. II. i .% // h d/ M / i' # . ( f7 i . '$$ .: 3 iii! , . lll ,, L. k ;: ..
ti ,/ ' 1
! i
.}p.'.7p
,'E I . .y7.. .N..,.Y,
~ !
. s ..9[...i Yg ,.NEN,. .g..y h.p. 7i.i,79..g. ..N, .g. y.g 4
. . , .
- f.*.).,. .@
$ !.."..,. ..t+ . Q,. m m[y.~@43.N.
. om k...t
.uaa.i Li o....i
".i . 4.
, p t.-i 4 ..,u. 9.oo4 L,t.
p
.. . ... 4.i.
. a... -
.. g ,
a
.t.. .o.1,
- p. .,,
g.gm g l.., o ,,
'.i{ . !il N 4.gl
- l ~ ,y!!: ll llll ..@l fji ' M
';{
i
.l{! t fi i* *il .'
'i't-6 d!.l A,il .~
i:j: _z ii 'li M
~l' U ,.jl} j!' ;
!!l8 lt .; .l l
.. ['lil1 .ti. , ! , lslt'. l8 I
_ ' iqi ..li
- l jp l'.j , ll'l l!t * !!ll e' :t::t l' I!
,,l' 2: ! * !-; j i 'l it i l i illi
' i l. !. .j' l:i!
'!!i till lltij'li'.
!;i.l li'a li; i l. '.
t 4
. ;~ ijjl
;; ! !.i i itj. . g l: gl
- .iji , . k l,
' I g F%
.& . p. '
? .it; -l .
'l.
e ; t f I 'C;Z. ' ;. :; 1 (e i'.m.li' .i gi.. .: al:
"l j,
.. .] :li
~! i'-lis, !!'!li!
,i l
- l :.
i; l g::
!!!i
-.. ;t: - ':
': j' :' .tf .j !.t'
-i'bl,.hpl-
-i'
- ' g J
.l .
* 'l dl:i.,'i. , ,, .Ml:.!M )E h% h- L i -
N 4 r'r'd.T##9 'q=p*'rr'P=M' ' En'#W FP~P' WOTT 'RU Ff7PTW'M"TTW"!T"P.?iFirio@ P.lWh ^iF C W Wyrig:.lp i ..,'J,,L. .N M P"PTr L
.,j o:
'm f .: i8 tie .i , ..
a
.a:.,a.a:: i, d .m.1i. a..mia. . m f J_ i,m
'.i- -
.m. -r . r .i.
e
.t..a. .l. .a ..a..w %:'. .. ., .i e i..i.,,LJ., .
. . . ..a.,,...,,.i. 4. i ' ,,.:,,
y - i, ;.-
. 1 i ..u, uJa.4.,,a.d . , ,t.,i,,'! . ,4,
, Q. , ,
- i i.. .
Ifjj ol ' ilii e.. il!.. .
!'l!
A i!liI j 'ilnl !lii il lll !!' llll !il lij f'
, i l' i.l i. l '
, . r lll!. li'i .II.
'li e . .. .f! -
il :- ,
; i i. i, !
o . CHART NO Pn414-CD e ancow 1*<tavu estas /g C da a Hy (# [3 G1 b" 9 u' p m{3 , . m M'(i..Mpign :iq , . , 57pl n!.! .g - I- i it 9- ::- ;:- ... .;je e
,:1
- r> .. ri i- :j.
t xe' .i:y Q8;;: @'i:g ;o!:lp:a. Un ipi n p ::n ,p:!$i i.p;p? ?)T-Y kgria ll '! p $ $ ( hln v'gli.. % ? rh::ij r.$ A s i's , l h! ' i . i. a { p'qv'iji= jlpy"1'pp'pp g 'p! y!N' '!,"q']"Qp"{'{1}"llF]'tt!!!gf]"g"g"p'"{'}lm'gy'fjll!j!'il'Ql't!'l]f81p ly yli!pl ('y!l flltgg'l{l9
!L ; 1[ml.m;. ic -
- i. .al.xi l j : .. . .moi .} ...l pq. ...:]i. .na l.4..o alu.on...so .
i;'! iii
..a...m. f'..;j pa.o.( N fili ;;ij H i.j-3..nma,u.l.uo.. . m..
l iji. .lo .[' i o d....i il111...l.l':n!/; .p m ' .U i.id,,! ; p;
- s. pim.mg. m,
, 9' m4l.+im.i.iul.W .l.m,
'ib'
,i 9 f- h. m.
iy- . llij ':t i il[l! jill ll . iIi ;! '. i6si
- +l 8
j;i i t .'!:.!. :' ilj; ( l' i . !. !! !ll ' i.. ..: *d ' i iri i :
- l. i.pl j!!! i i l. l t. li 1 jl:i i:jai t, si. . k. .!.' i i. i ,.ll i. i : ;i'} l iii l!'i II' i
- li i. ;
l .!'.i.;.!i
't : !
- i. l. ... , ,. . ,, , , !;
i . f3. 3 i ,
' e l u!
- C, ,, , '
5 ,N~ . ,- l ;, !! . iijI f 1: i i It j!!
!i ! l'l 1 : : fil: s ;!.,
j!ji!! i -j !dd M
?
r :i!: tl8: e; l'i ! l
- 1. :
!'?;v/.:!ly.r.N N '!I! i lW_(
9 ' I'- !! Is! - M. ! f' i ' l/
?
I ..
'. h'k~@~#
' f, .
.l' N'TN P plit 6 #a
- . L F Y... is:;)i.: . :. l :' . f. ' , .J *
. -l O i 2 I,
- 4. - .i- .- {'. :.
y i . .m.pqmo.pmi.p q.
.T'77"P"'f'1t . .:- ("4"T!"" 'l"PFP'I'9"' Tr'Q*w' ;p
'Tn . )- ?9**l**PQT*"P!"['*Htt"9]'my*mipF43"~l!!nllf,Tmp
]C.n~l..l.!..:.9..b.4isim
-~ - -
t
;?'. IP im.'.pom' -t *
- l "
e,spl.m P i-i. u .6 . . .um ..ue:.4 27 4 ...;
- i i4.p l. 4.p 4,.o m. l... ,ia.sh ..ios. a. . .9.b..mut.kh s.4 Ml.mo. i .l..i.e 4.'iq.l.q' uil.T.W..l.m.
1. u Ho i i '.i '.lI -j: e f d.' li;- .. . .!!'f: pp.1..ps. . .. . l..i..f'.ca.l..$i i}: J': 8 'ii! I: 4>
' . i: 1:i l'
, ' _ _ __! ,: ...I . .; ' ,
..li si': .li ,
.I ,,
I
- ij' fi.. . _ _:i '.' ;8: ' t i, ';Il l gl si i ,l.,l I!!' !!!i
- 1: ..: ..
- i.
- l. j : ! :;
!;i! jfl.
!Hi ri!! .qi {:
' i ij ist! 46. '
i t';' t ...:!: 1:. .!al
.ll l!.! j' j;: llll !Nl i
' !. ij: :t
.l- ai ,
;i e
n
'jjj i
.' Mdym [ ; j ;j[ n.'--l lli, i
A.f il j;!. liii
;. ) j..:
l i _-:j. .!l: .l:: iltiij ji 8 1. 4 . i; jil! !:l: ji i r lijl
!!i!
- - _t
.;, : }l;;
! .:!; ii:
M. l
. -- . ~. : :,, ,
f
! . . hgc. -
d (in kc p [/h'/N D"J.Orif $ r.y - 3 M,f ' hf ; t.]' l~v I! 'lli llf ,:'ll, v. gll; I!d l.l :l:,,j4 i m - _ a .__ 2. l-
'!.i , lll; I :. ;: i l l .I. I j~!!
'!! !! iiji li: ^!!'!: ::l:
!!!i j
.-l 1
~
l l ' ' '. l - '
;i ! ist' ;;e:
!!I' i.2: !! -
, i .l i li!
----) - -
---1 --! -l * :-' *j
( i 4 j.. i
- - !j :;6 j i. :
,1 . .i -
Trli
- i. ,
- l. ti! i. i ;
ll. 1 ..
- . ,- i::i g
1 ;
!: : 'ti: it: i. .
- j. .
3 .i .n. I (j3 G" 7- CHART NO PR414-83 . p.cose f e. tam Parf st e 99 f r NCTM "'-*~1 mm a: i . i j - t . i
.i
-[
b: ,ji l' ii ! l. : :h:
^m '
t >r W'/ r
'_. - -. . n !
" . * * .; '6
h e
.gf .l,_. - - __
l(!:' -'i
- l[S M /ce dimee g m / p jd:)/ fy n % ' I ') l ,
'i NJ! S:WCI7L i . , ;
u..w~~w.~.~.e~......,......=..... -
.cr.e..m. t r...r~.,r..r~~. me-w. n.c..~_e,.x,.-
u
-a- ..,.,. , m ,~.~ ~. ~.~ ~.~..~.r . . . . . .~~r. ~n-}
.iI
.i. I- i.i ;
t:t:^ .t.! :ly';i! ! . l- '.' t. .t r- i !.. g ; . t1 . I
-{
< i. ;-
e t- I
- f. -l' -l i
3
- i. .: .
- i. .!.
f: !' - .l 8 i i l'.
- 4: :li: : ' ,, .
!. ' . - . !*l -
i.- I > ! I i ! { -j 4r vn 1. , g __g.g _Oc_rn yr (/ % ,ehi W 1 5 ll'h' ,A ( = f * ' ' *'Y [ : >'D, i !
.l ._I....__,._,__,l -l l -l
...q .. g..,,.. r . .,..r.,,,,m,,y.m.. ..cm.,y.y.n,y r,m ......<, .m,7,,g..., y , r; . n,-
,j.yi,,q. 7mg.ppig.ym,j,,I:- f ; 7r vrl ijg' - f .iT:r.F:;__.; ,' 4
,,.,.y .c.n$.,.yy,,,4, r . mn.
; .}
- l. 1 i
.m j :i
,l rh'ilj.
i p L
, 1 i
8, _
.l
_1_i - _ __.
._a
. , . . L _.
n__ I N
' .! !: :'y ii ;l
.i- i l 'j- .j i i i ...
I '!
.F
}; ' i
-i-l 't i
i ,l ;i i 1 : -' iji j
. .i
,ir.
'l'[',
.n.....[. ... p.:.;iiC;I. .i. . N1 ; j. .is;...j.; ..i'.i ..d..M. I . ..~ 4.SI.L ' L.J . ' j j Iiq a n J. :i:.i.J I-.
M G peu ?g,r%' So4c ;
'I ,
;~;..{.T.:.'l . 3;.i:T"; 'i i I t i ! ! i i
/
l - [;)' ..,.......1.,.,... /" . ,
;~
! i 3,- 5) ik-%cchcds.;.y ,I- i i
. m,@ M. i g g,q, ,..r,.7,,,,.,y,.,,,t.,...,,.ma..,.,,,......,,,...r.y4..y,,m,, m m. .,,pr ,n,,, ,,,n, m.,
e 7m..i ..n.)
....., , . g . . . . .
i_..,_ [ 7 _d. ..mm 4_, yl I b i !;i f;i ll! b;'..
! ! l l
' l ' I:g 7._. I i;
i
.I et ij
- -a
.d. _ j6 4 J,! ; '[ . .t .- 't
.n
- I , .
,, ; j ._.
. ___,_ . _ .T . .
i j, .,. ; . ,e lg e,l., e.
-l - : .'.
s
;l
.l.. ! ,. i. - ,i . . .' , ,!,
I i... !....ii...g/..i
. .... l. ....i,'.. i. I... Ji.o 56
~ d ' dl '.ii, 1 l ' '
, ' j.:, ; ,. ' L C
] '--~ if g h . ti N ,* % ,b,,hl.;.,JJ.f.1 J . h -.i*.,f; +, -
. V -
p m a o.i 6 %( . Ifvo C (,M .c l 0 a. N._h. j. ..[ .h, o. dc'P . .L g._.__, p ;i 1 - 4iiI & _ , ._c _. . a
, .L y y . p, 1 ,
1 a,
, f I q l . ---- r - ---- - i s .s . ' m . s s ,. , ,
l , ; p, , ,, fr. . , ' ' # /' p c'f * . b#6 L
# " '*[ t /'./ #
, /,,,,,,,
s ,i . o, . < sc n - . s ,', e, ,- , , ,
. ,.,,a,,,
s . , c /s y , c*, ) ,y, '
,/m.: o ,.
or l- , e,, s' s ## ?/ *. 4 ##r g
. / /.'.y
, t
.y ../4
.r
.e p ,
i l
l .
.. w.
ww_Q cNEMf INCORPORATED TITLE ISOLATOR CIRCUIT DIFFERENTIAL HIGH VOLTAGE FAULT TEST PROCEDURE DATE PREPARED BY W'Y WAm%-n 'l" K -Sy REVIEWED BY C i&df df RELEASE DATE CUALITY ASSURANCE ' " /O-1 ? -N PREPARED FOR PROJECT MANAGER -- Io-2 'f-B V
~
TECHNICAL MANAGEMENT d' ##ff
~~
/
4 I
#[2f[f
/ /
REVISIONS l NOTE: All revisions are flagged with the symbol d in the right margin j where N is the number of the revision. j Ree. 0 - Issued for Use - 10/31/84 Rev. 1 - Expanded Test to Include Adjacent Isolator Channels - 11/29/84 I' 2 Rev. 1 - Procedure Corrections - 12/7/84 h/#/Gud l Ml M FOR llEORMATlDi ONrYrarm LSSUE DATE APR 151986 Y gunJ uui si r#"I Q- - l- 0 0 PROCEDURE NO. EIP-30
$$O3(if0iq(FT 3 97 Rn' wn
I .
.... s.
n TABLE OF CONTENTS PAGE 1.0 PURP0SE............................................................. 2 2.0 RESP 0NSIBILITIES...................... .......................... . 2 2.1 Te s t E n g i n e e r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 Qual i ty As surance Representa tive. . . . . . . . . . . . . . . . . . . . ...... .. 3 2.3 Test Technician................................................ 3 3.0 TE S T PR E R E Q U I S I TE S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .,. . . . . . 3
, 3.1 Required Drawings and Special Instruction s. . . . . . . . . . . . . . . . . . . . . 3 3.2 Equipment Required.................................. ... ...... 3 3.3 Inspection.....................................................4 3.4 P roc e du re Do c ume n ta ti o n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.0 EQ U I PM E N T C AL I B R AT I O N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.0 TEST PROCEDURE............................ .................. . .... 5 6.0 ACCEPTANCE CRITERIA................................................. 6 FIGURE 1 - DIFFERENTI AL VOLTAGE ISOLATION TEST SETUP FIGURE 2 - HIP 0T TEST SETUP ATTACHUENT1-EIP-30DATASHEET REVISION NO. PROCEDURE NO, em an I, 2 PAGE 1 OF g EI-646 UXQLLXavUd -
-p 1.0 PURPOSE This procedure describes the methods to be used when performing a high voltage fault isolation test. Caution : This is a potentially destructive test and requires dangerous high voltages. When performing the test, employ adequate safeguards to protect against small projectiles, bright flashes, and high voltages.
The test involves applying a 483 Vrms,10 amp (nominal) source to the out-put of a single Energy Incorporated isolation amplifier and observing the effects. During the test, the 480 volt source will be applied to the output of channel 2 of the isolator card (798-X assembly) while the inputs of all four isolator channels are monitored. After the test, the isolator card will be inspected and all damage recorded. Also, all isolator chan-nels will be hipot tested to 600 VAC and channels 1, 3, and 4 of the isola-tor card will be electrically tested for performance. As added provisions of the test, the system power supply lines will be wired and monitored. 2.0 RESPONSIBILITIES 2.1 Testing Engineer (TE) It is the responsibility of the testing engineer to: i ( 1-) Provide or arrange for the necessary test equipment, ! (2) Ensure the correct application of the test equipment, (3) Supervise the test technician, (4) Enter the test records in the project files, (5) Be trained to level II as per EI QAP 10-2, and (6) Notify the QC Department of the pending test. REVISION NO. PROCEDURE NO. EIP-30 2 PAGE 2 OF 9 EI-146 w ((R2V 1 1M4)
2.2 Ouality Control Representative (QCR) It is the responsibility of the quality control representative to: (1) Verify the test is conducted per the procedure, (2) Verify that the data are taken per this procedure, (3) Verify the equipment used has a current and valid calibration sticker or certificate, (4) Verify the proper disposition and storage of test records, and (5) Obtain and maintain the test record copy of the procedure, data sheets, and all applicable drawings. 2.3 Test Technician (TT) (1) Perfonn the test. 3.0 TEST PREREQUISITES 3.1 Reouired Drawings and Special Instructions The test engineer shall record all required drawings and applicable special instructions in Attachment 1. 3.2 Equipment Required (1) High voltage source: 480 t 25 VAC rms open circuit,12 amp rms minimmn short circuit current, 60 Hz, single phase. (2) Clamp on current meter: 0 to 12 amp, 60 Hz, 5%. (3) Vol tmeter : 15%, compatible with high voltage probe. (4) Eight channel strip chart recorder: 60 Hz min. , Watanabe model b WR 3101-8L or equivalent. REVISION NO. PROCEDURE NO. Eip_30 2 PAGE 3 OF 9 EI-146
., r (RTV0 f o/ 84)
(5) Tnree 50 a,1/4 watt resistors, two 100 n,1/4 watt resistors, one 48 0, 6000 watt resistor, two 1.4 k,1/4 W resistors, and two each 220 uF 25 volt min. capacitors, electrolytic. (6) Hipot tester: 600 Vrms AC output,10 pamp sensitivity, Hiptron-ics model HD125 or equivalent. (7) Test leads and switches: as required. 3.3 Inspection Verify that all special instructions will be followed, that all items under test appear to be in working order (visua.1 inspection only), and that the , test equipment is in good shape (no frayed insulation, etc.). 3.4 Procedure Documentation Attachment 1 will (when conpleted) become part of the test procedure docu-mentatio n. It will be incorporated into the test record copy of the test and then submitted to project management for final review. 4.0 EQUIPMENT CALIBRATION Verify that the following equipment has valid calibration dates. Record these dates and equipment descriptions in Section 3.3/4.0 of Attachment 1. ( l') Both vol tmeters, (2) Strip chart recorder, and /b$\ (3) Hipot tester. Also record a description of the 48 0, 6 kw resistor. REVISION NO. PROCEDURE NO. EIP-30 2 PAGE 4 OF 9 EI-646 w
. c. .
5.0 TEST PROCEDURE (Reference Figure 1 for isolation test setup.) During the high voltage fault test, the following eight signal points are monitored and recorded with the strip chart recorder: (1) Vg source, (2) V in channel 1, (3) Vin channel 2, (4) Vin channel 3, (5) V in channel 4, (6) V+15' (7) Y-15, and (8) V in RJC. CAUTION: Lethal voltages will be present during the performance of this test. Also guard against small projectiles and bright flashes. (1) Assemble the test setup as shown in Figure 1. (2) Verify the open circuit voltage and the short circuit current of the 483 VAC source. Obtain these parameters from 31 and V3 via changing the position of switch S1. Record these values in Attachment 1. (3) Wn11e monitoring the fault current and load voltage, apply 480 25 YAC, rms, 60 Hz to the isolator circuit output. Record both the magnitude and time response of all voltage measurements with the eight channel chart recorder. (4) Remove the applied voltage only after the fault current has reached a steady-state value (within 10%) or after one minute (whichever is longer) . REVISION NO. PROCEDURE NO. E r p_30 2 PAGE 5 CF 9 EI-146 m GQ4LL EMI6 - - -
(5) Af ter power is removed froin the circuit, inspect for damage caused by the test. Include in your inspection both visual (burnt or melted parts) and electrical (resistance) observa-tions. Record all findings in Section 5.0 (5) of Attachment 1. Disconnect the chart recorder from all points. (6) Perform an output to input Hipot test as follows. (7) Turn on Hipot tester and set the voltage control to zero volts.
- 19) Connect the Hipot tester to the items under test as shown in Figure 2.
(9) Gradually increase the output voltage up to 600 VAC. (10) Note and record ( Attachment 1) the leakage current when 600 VAC is reached. (11) Wait at least 15 seconds. Note and record the leakage current a ga i n. NOTE: If the two values (step 10 and step 11) differ by more than t 207,, record these values in Attachment 1. (12) Turn off the Hipot tester before disconnecting. (13) Perform an isolator performance test on isolator channels 1, 3, and 4 as per EIP-24 (Sections 8.2 and 8.7) . Retain the test record copy of the procedure in the test WAP. l l 6.0 ACCEPTANCE CRITERIA The isolator circuit is considered to hava passed the 600 V differential l fault isolation test if the following test criteria are met: REVISION NO. PROCEDURE NO. EIP-30 2 PAGE 6 0F 9 EI-146
~ [LFJbidL kDvud
~
g,>cc cr e'6 gc H+ ff plCk '. O ? ,WmV 9 f (1) During the application of the 480 VAC power, no more than 0.25 mV of the 60 H: signal shall appear across the 50 0 isolator input and the 100 0 isolator and RJC input load resistors. yok . g o H+ RFE p rew Wy exceearSg /. T V pg3 (2) During the 480 VAC test, no more than 1.5 V RMS may appear across either of the power supply resistor-capacitor networks. p d 9 (3) The extent of the damage resulting from the test shall be con-gg fined to the tested channel's output circuitry (adjacent channels shall be unaffected and the tested channel's input side must dd'AYe ( p '2 del remain intact; also, the isolator card connector must not be affected). onl[ (4) The leakage current resulting from the 600 VAC Hipot test shall be less than 50 pA at all times during the 1C-second test. pe 55 (5) isolator channels 1, 3, and 4 must pass the testing as required in EIP-24, Sections 8.2 and 8.7, according to the criteria set forth in EIP-24, Sections 10.2 and 10.6 ( .1% linearity). REVISION NO. PROCEDURE NO. gip _30 2 PAGE 7 0F 9
, /, , d / 1
/
1 ' 2' 2 d
~ *
[' / 4 g g d g p 1 3 4 2 e N N N N N N I N N C A A A 5 5 A H H J 1 1 H H C R + - C C C V V V V V V V 0 4,
,K a 14, g,
^ A 5 ' '
(
' I.
F 0 f x x 0 0 2 2 2 2 I 2 B E T G A E T P L YX - Y O T V O4 S T2 S O2 A T R 1 L P U A F P 0 2 L U U Y I y ' 2 9 1 B T A ET I T S m-N E R T g ' ' , r F E S F E 1 ' 3 F T I D
)
R D 0 I RY 1 [ E A S C C S E AN
/ / , R R N U
A o X 0 T R G OC T XO 8 4 2 d I F A8 - L9T ~ - O7S V L S E . I T O L S D ( b 7! i ALE . E S
- - a ANL TLH N. TE IGNIL CACAUALC E
C - j _ 1 R I I 4 0 U - 3_ - _ M, A S RT D M R EC NT RO FI i t SS AN WA I I VS G W PEIOO R S W A I A STP P AT S L Sog I 8 A T S S .E A A EN RC YN M 1 4 E L L EO lROI TI R A M RH WITWC I FC D A S W CIRU S U TDRR a %%W. 85 4+S M SN . E STE MSA EP YSN S W OSW i
- T L I A f O L H NI
, V M 2 N A PI LA T I NPA 0 L ~ .
8 A 1. 2 3. 4 3m OZ O UgOODOc0 1 C LO T mne @i , m
- A
- T _
I B 2 I T E P YX Y C T J 4 S RO2 S A . T Ol O R P 3 B U 9 1 2 I T R R R OI ES R E OI TFI UT T F S I ALP A LT
) LP T L PU D R OMU S O MP R O I AO S A NI P AYT > I > U CSC , ' T SE - -
E RAN. N - 0 2 p S O L W 9 X 2 Y 1 Z 2 T a E 5 e 8 4 A D T XO 1 2 AC _ L 8 T O 9T S S 7SE E I T T ( T O P I H 2 E R U
+ - G I
F S M RR TE O S0TV P I E0 HT6 s amSu6Z zO Y OMOC2R 29 mql a
~ bom
- o'
- m 7 x a, h
~
., . 1.:,.
~ *p ATTACHMENT 1 EIP-30 DATA SHEET Reference Section 2.0 TE Training to Level II: Name A 43, a Date Trained 3.1 Special instructions Design Drawings 79 y- / Assembly Part Number osJ Assembly Serial Number ver Rev. Assembly Drawing (if applicable)
"/s Rev. Wiring and Cable List (if applicable)
Special Instructio: s i 3.2/4.0 Egeipment Record Cal. Dates Equi pment Model Manufacturer S/N Last Due High Voltage Source W4/ : jfs : "/4 : N/A S Current 14eter boroA: Evg : ze9g % : N/A MW Revision 2 EIP-30 Sheet 1 of 3 31-5
~ , . n., .
Step 01 ( j., w eg go (10) Initial leakage at 600 VAC jj ,f], ' Arms. esco 2s0 }M.s (11) Final leakage at 600 VAC 40 /p Arms.
$0 -
(13) Results of EIP-24 (Pass / Fail): Chann 1 a5s Chann 3 /qs s Chann 4 # cts s Test Data Certi fication All test data recorded above were measured and recorded as described in procedure EIP-30. o
$ffam47 t % - /Y-- Y LJ Test Engineer Date 5 /2 Dn N
['r f.b,( QC Representative Date Test Data Acceptance All test data and records have been reviewed and accepted according to the criteria of Section 6.0. W( hfkm Engineer l R ~ / Y v c/ Date
$% /7 De ik pc g o,q, QC Representative Date k a f
) '
YY Revision 2 EIP-30 SheetIoD3 31-5 - a
. vg., . -
Cal. Dates Equi pment Model flanufacturer S/N Last Due Chart Recorder we 3m / : 4fsuym : yofff a / : fa o f./ : : Voltmeter yn . uk _ 3: 2 c! l 1: <' - ]_ v fS: ?$l, tr0 TA F/u h e AY96100 f47-TV c'/7-9-s tg /g Hipot Tester rip feo _ : M,/oyt,y,c3 : /4 rod-/ sis: 8et y ev': /c g N: 48 0, 6 kw resistor:
] ~ %~00 WT 7 % t/ wsrso worsc w g ,,,
5.0 TEST PROCEDURE NOTES Step (1) Power source open circuit voltage h'f?,7 / TNS Power hource short circuit current /2 3 4 f f7, g (2) Fault Current Load Voltages Max See Qu f-/- Attach Chart Recorder Chart Time to Reach Steady State ^ W 5ec (5) Inspection Comments c ba se R varres k/ exp/oc(e<f c han n / sa Peres SwtoAe day g c 4,,, a q Su n ,,ap S *#U U M97g [4 ,, y p- V ~ A/O e fecf R'evision 2 Cf gU= E P-30 Sheet 2 of 3 31-5 R C U Ptt f'ra c p f u p' \ Y/"r es +ep,_}}