ML20065E912
| ML20065E912 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood, 05000000 |
| Issue date: | 09/22/1982 |
| From: | Tramm T COMMONWEALTH EDISON CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 5076N, NUDOCS 8210010202 | |
| Download: ML20065E912 (4) | |
Text
_
Commonwerith Edison
)N O
One First National Plaza. Chicago, Illinois O "J Address Reply to: Post Office Box 767
,j Chicago, Illinois 60690 September 22, 1982 Mr. Harold R. Denton, Director Office o f Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, DC 20555
Subject:
Byron Station Units 1 and 2 Braidwood Station Units 1 and 2 Locked Rotor and Shaft Break Transier ts NRC Docket Nos. 50-454, 50-455, 50-456, and 50-457 References (a):
June 7, 1982, letter from T. R. Tramm to H. R. Denton.
(b):
July 20, 1982, letter from T.
R. Tramm to H. R. Denton.
Dear Mr. Denton:
This is to provide additional information regarding reactor coolant pump locked rotor and shaf t break transients at Byron and Braidwood stations.
Review o f this information snould close Confir-matory Issue 34 of the Byron SER.
References (a) and (b) provided our basis for concluding that the turbine trip associated with a locked rotor of broken shaf t transient would not compromise the stability o f the Commonwealth Edison grid.
Reference (b) provided grid response predictions for unit trips at Byron and an actual grid response history for a trip of both Zion units.
The grid response calculations have been repeated for Braidwood and are enclosed.
The computer simulation assumed a Braidwood unit tripped while carrying full load.
A large model of the interconnected utility systems was used for the study.
Only one Braidwood unit was assumed to be operating at the time of the trip.
The transient response of the frequency and voltage at the Braidwood 345kV bus was obtained and is shown on the attached figures.
The results indicate that the unit trip causes a relatively minor transient disturbance on the bulk power system.
This is borne out by actual system operating experience where unit trips occur regularly with little impact on the electrical system.
0\\
8210010202 820922 PDR ADOCK 05000454 E
H. R. Denton September 22, 1982 Figure 1.shows the calculated frequency transient at the Braidwood 345kV bus following the unit trip.
The frequency initi-ally drops rapidly to about 59.96 Hz due to the sudden overload on the system.
The subsequent partial recovery of frequency up to 'one second can be attributed to some relief of the overload due to slightly reduced voltages.
Beyond one second governor and tie-line frequency control actions will begin to come into effect to allow the frequency to recover to 60Hz.
These control actions are not included in the computer model and the frequency beyond one second is shown dashed on the exhibit.
Figure 2 shows the calculated transient voltage at the Braidwood 345 kV bus following the unit trip.
The maximum excursion is less than 3% and the voltage recovers in several seconds to a steady state value about 0.5% lower than that before the trip.
Th e voltage recovery is due to the automatic regulator action of other units on the system.
Please direct further questions regarding this matter to this office.
One signed original and fifteen copies of this letter and the enclosed figures are provided for your review.
Very truly yours, fl $ (Y
~
T. R.
Tramm Nuclear Licensing Administrator 1m Enclosure 5076N l
r s.
N Ce o.,e..m.....m..._.....t.,..t.......~........t...A.
.mn..
.a....
..t....
4..
....t........t _... m.
.u u-
.....t*+.....
.o.
~.
..:.:.. o..
... ~. ~.....
u...
.'-++.4
+. - - + - -....o..
- t
+
.--4++-..+..
+ + +.t+-++
+++++ ~++
+++.y u.
o.
. ~..
..t.
. +..
o-u*
..m.+..~.
....++++t+-++
.~.
u..
. e ++ -
- - - - + +
.+
t,
.o....
5....
- - + -
___o+.e :.: -
w._..
u.a..
,.o...
.t
-.o.
+.n......
.u.
.+...
....u....,...,.
..o.
.. ~. + ~t, 'o. n. n.._
.t~m.
..+
....+
~ ~. +
...... 4t,. ~t......
+.t m...u
..o...
+ +
4...
+
o.
++
- n..
4
...tu.
~. ~..u..
m.
m.....
.. I ~.
m..
~.. +
1,.m... _. -
.n
~. L
~
.... 1
.o.. r.
....+
m...
o m.
.+++
.~
..m_.
..,..+
u..
..*.m
~
. * ~.
...o
. *1...,.._.-
~.
t.
.o.
...9...
.m.
....w.
. +
m
.~u.,...- o....
m u.+
4.
.t
...%.u.~..
.2 w.2 2
t.a.. at.m..u
+. _.
.. d. n..u.. -5..w 4 - -..-*..u..*
...a..m.a.
...o
.o..
t
.. o. t~..........****t.
..t.w..+ i.. - --... _...*
- m. t......o..
.-....-.o...
.u..
a~
m
.... -....o.
.~ t..
.~
.m
- m. m..
m
..o.
....u
~.
.~
.~
-. ~.
.m
.... +
m,
+m.
...u..
.......,....~.......
..e....
.+
...n
+
.u
.*.+
.. m.
.u....~4
.....~.o....
..o
...~...
+
_,o.
m
..+
+
..n...
.s
.++
+. ~.......+..
.... +
n
.+
.m.
w.
. ~ -
. toe.m+-.-..
. +. *
.+t...
.. + + +.+++
+ - + + - - - -
---+o
.o..
~_
4.
......~..
..:.-..o+
t,.u. *.-
~...4.,m..
u
.,... u..
...o..
~..o+... ~.
+..
....-..4
.o 4.. h*
w..
e
,..o...... -...
. m 1,..
v u
.m.+
~ m
..m.-~e..
~ ~.t
+
m.
..~.w..+
21_._...
u.
~ ~.. +.
. w.$
+.,...
~2. ~.. r.-. -'.. ~.
..4...
+
..m.t4 w 5.o
.u_...
....+ + - +-
+-...
..-u~
- m....m.- ~.
4 m-
.uu.-
u o
.w.
..u.~.~.e..~+
._~- +......,
--4+4..
+
o..
w
~. ~ ~.
.... -+ +.:.,-.....+.-
m
~~
~
--+
...o
.. ~.
.4
.. ~
++++++++
~_..t--
~....
- u.t*_~. -
o..
. + +..
.... _. ~..~ 1.
m o..
-. e o.,o..,::_.-
.u.;
w... *
." t4 m....
. 4..~.. uo
..... o.
m.+
y...4.L -m..
m.
... m......
uw 4.
o
..~e.
w
.m..~
+
....++._
~.......
.u...
u...
w o
.+~...
.-+.~.+o..-. +......-
~
.+
+.. _
+t+--+-.~...+m-.*+.-
m
+ +
.. ~.
e
- +. -.. m. m
. ~.. _
- m..+
... ~*.+ % ~
......m.*..
. m. 44.
m.*...~.
.+
.m
.m *~..-m...~,.o
. ou..-u..
^;:.:.:
.m
...+
4.
4,
+
m
..m
..+..
~-.~._..~-.
^ ^
.o
~..
- ^
4.
u.
-. _ ~..u---
-y.
--. - ~ ~.. ~.. "..... ^ :
4 m.-_'
^ ::
.=
.*T+.. + + ~ -
+ +
- +.
.....m
..~e,
+.
~. - _
.4,,
.+
.~
-u m.
..+%.+
+...u
.. ~
.t.-*.u.w.
... *, + +. ".
"+
- + + + + + "
+ + + + + -. +. + +. - -
+
+- "
- . ~..
.+.m.-*m_+.."m.+.o.,., * +. +. +. + -.. +. + -..++_*
.. +.. +. +. _...::+
..++++u.~
. + + + +.
. +. * * +
.u
.u m
r.
4 o._...
m.
4
-..~
44
. i. ~
- a. +.
.+
+..*+,.+.m.--.. _ = = _ - - -
.++
.+++t++++ + + + + + + + + -.*.d++*++"+
..u+..
..o..-
.e
_..e
.....w..
. _.... a. 4..-.o. f..*~
-+
~ 7+
m.*.
... ~.. - +. -
r.,
e,-..
- - + + - + ~
. + * --+.m~.*. + + ~ - +~-+ ~ + +. + -.- +. + + ". +. +, +
+ + +++
++
++
+
..+.+*_-
.. ~t++++.
... _ -.m...
m.**...
+-+
++++t
+*- -. -
.4
.+-++:++++ ~:u+++- + + -. + *.. +.. ~.
.+++t++4+
+ + + + -4+++
+*+-
+ + *.
+
+ + + -
-+++
..... m.+
+ + + -
+-
..o
- _... ~.. -
.::. --- ~_-
u.~-....
+o
. to..*^u..
D
- m.,.
.4 a..
n..
~~
+
o.+
.: m,..-
.y..~
.m
.._m..*
4 ~.
~o..~
-.m.*
.... 4 : :
.u.
. ~..
. ~.
.u
.+
g
.. +. +..-..
.;.u.
~
+. -
~-++"m~.
++
++++ -
~+ + + + - -
-+++--++
+++++++++
em
....o.
-. + t :-+*o.+++..o-.+.. +. ~ - + + ~..
.u..
.w
.u.:.-
.~w..
.w
.+..,.....
+
- - - -. ~. *,o.t,-
N.
+
..u
_.. +.. _.
o-
...o.~.~~
...u...
.,u
~.,o.,..
.~
..-.m.
..m
_. ~
~ + +
w-
-.m p.-
m.
e O
i.n i ~.
w 4 2
42.eu-4 w
.~.a
_....r.....
_. +.. -..
6 : m.
. 4u:.
._.-.~+
.~.
4
..t
- .m..++~++.+_+++++++.' * *.. *. +. -..... _.. +.
.* * + +. -.***+t ~ + ".. ~ + - -
+ " + + - - -
. +..
o_
. * + ~ ~~mo.~...r.-
" ~ * - + '
- * * + * *
- 1
- +
- + "
($3
".. + +.. '~ + + *..
- t*+.+-
++++
- * * * *+++
+ + + +
a +4
.'.*.4.+++.+.
+"
i
- y._o. _.. '
~
.o..-
. t.u
++
+o
- .o
+
_._+: : ~_
4
.eu
.4
..... + _
~
...4-
._~e.-
.....+.
+ +.
. m+++.
.. + +. -
o.
.-....~ ~.
m.-
U.
~: ~:
..F
.u.
. ++*...**-* * :-
- * + *---
+o+
,.m.o
++
--.+++++. ++
..m_.
+++
- *.. + * - - _ + ' _ '
n
.+'
.* + + - * '
'..a.'.
~. ' - _ '*1
... _+ + - + -. _ * +
+ - + + * -_. + +. +. - +. _ - -..
.m Z #,
'*".-*W..".
- ' - - ~., _
.**.**4_*
e
. + -...
.m w
+++" ++++ ~-*+
- + + + + +, +. +. +..+ + + + + + "
..++"p' a
~.. + ~..
y ;;
.. --- m.t, ++e..
es
...o u
- m..,
- u..
n.
+_..
m.,_
4_
t
- . p...u.
r_---+._**
h: :
..o.
g-o.+_...~
_4.._.v
..w_
I.
-1 O
..o....
m..
... ~...... -.....
+
o.ut
__.+,_.....o
- o...
+t.m
...o, o..
.+
.....u..
o.m~.
4 o.
+.
- ~.
.m p.
o, 1___.
m
.o-.-
.m.
.._2.._.
- a a__
.. _._...... _....s..
a 4.. p _i
...a.~.~....t..:..:.:.,
~. ~.
......., ~
.a.
~
.. ~.
4
.o_.
. o - :
4 m:: :
.o.
a o.u.o m.
~~:
..p._.
+
...4.-......~..._....__
...-. 7....
.o
+....**
ao
..o.......
.......,o _...,.4......~.4.%
...... a
._.4.._.+
.-_4._.. -
O....
.....t
....o o..
.t
.p
.r*
, m.e..
..t... ~....
I.._~._.._..._.._.t_...__.
._.t,._.m_..
.u.
~.t.....,
. ~.
_ _..._t.......
..o..--.
. _.. ~....
. _.. o ~..
u
...o
.+.m.o.o.
.~. m..
4
..~.
.o....
.m. _.
..r
.m.
-._~
..,4.._.. -.,. _,,.
.u..;...... -. - - ~. -
t.-.
s...
.o.
e t.__..
. o
.m. _. ~.._ _..
_. o ~..
. o.
,.o..
_.m.
..y.
u
~
..~.... ~.
wo.......t..,.
... a--
~..
.... ~.
~ -. _.
+
..y=.~.
m.
.-e.
~.
N
.~ a.'
1 4_.. :
w._..
.....,_...ar.~
.. ~,..
c
..t
.p.......
~
~
.. ~...
o m..
w
.+
..~..
.~.
r
....u.._
. ~.
4.-....~:.
^
. o
.~.
~~......... _
.mt
~.
.. m..
....w g
...m.....
.m
...a....
. o
....~o..,~.
...t+.+.+.'..
.w
+_.
y....u..
..r t. -
...r..
z
~
. ~......m
. ~. t. o-...~-......y~.
-o
....,. ~.....
.a
.. ~
.. o....
~.o....
~
....g
.. ~..
g
.m
._...u.
t.~.
2
. y.:2..u.... r,
-_...M'%......
.. +..
4..
~..
o.u. m
...a
.44,~
+: I a
.._1.._.
~,
++
n u
+ _ - -.
.~+.. * * * - -
+. + +. ~.. + +. + +..
.. +.. -. +. +. +. -.+ +.. +..
. -.... _ + -.. + + + ~ +. +. +. ~..
-++ ++-++++ --.... ~ -
- ++* -+
+"+ + + + -* + + * + + +
Oz
....u t"
.~a.
. ~.
......... : o o
- a. :.
I.
.. J.i....
.4~.:.: ~..-.~.
...+
.... ~ ~.,.m.
...o.r.,........-+.:... +. - +. +. +. +. +. +. -.. + - +. +. +,., +
..u
+
.+. - + P: ~
..*... o.
..-4
...... ~
u
..~u.4..
wd
.,u.
r
- t..~,.o+.m+++-.+".u+".
- - +..
++o
- +++2.-+-.+.1+.+-
- + + + + + + + -
~
g,w u-.
.aii ::L...u..;..i 444 I-E 4 4 w,.
.. a e4;a 4., ~
4 L..o N E
,1
. _.a......4
..,4.
.... ~.
.I,,...~~_... ~. -.......
u u
~ o..
pa u.
+
...m_
N,.
- t.*.*~
m.
..*.* o..
~.,u
- +.
+.
. ~..
u+
+-
. o.....o.-
w
.. ~
.u.,,,, ~ -
.u.
..~... -. -,
. ~..
-..+.
_n Q,
...~._a_.
m...r.
- 1....,. +...... m...
u
.t.,...
.. +1. 3
. r.......o_........~...._.o,I
..w..-~..
.a
. 1t+ ~...... I.e..-..I
...a..
~. ~...
O
_....m.o
.~
.. - _........... r a.
u.
a o u
. _. _ ~ -
- n. n
... o. m. 4...
.-.. u _.....
... o m.
.3.._...,.o..~...
t...
. ~.... -
I..
14 I.
o--
o.
.. v o
..a
+
u..*
.o
+++ +-*++
..~+*m.
~
4
- o....
..~
m.
o
~em o
+ - + + + + + -- + + * * + +
- - +.
+
~+
-. +. + + + + ~ -- + + " + + ~ + +
+ + * * * + - +".
++++
+* * ++++.*m+
~.:.:
- t-++-M -++t+ ~-.
- ,;. no r
t+++:+ +*. 4
.. *~. m T
+.4
- o.. *
.u.. - a:
+
..+ + + ' + +
+ + + + + + * +
.. ~.. ~....
. m + w. ~. 4, o.
...,. +
~.. *+.a*++~
o u
.o.__.-.
~.
. ~...
..~ m. u, 4m.-.o..,
.ou.-..
. o.
.m n
o
.. 4
.~
wo
~ + +...
m.4 -.
-.u_.
. u.
_..4,...a. a.u.~_
+.
.,..~4..
u+
.o.
4 e-
. 4+. ~.. -...+.:: -
.e.
..+
u D
u +t.2.4~
.. ~ 4 o..-
. I!.... _.
m,..,..-. u m. o...
. ~. ~. ~ ~.. ~. +...
m.......
~o.
..e
.w..,
u~
.oI o
u z
o
... o u-........
o.
+
...u m
.~
u.
4
. o ou u,..~.m... r- *,.. +..w
.. +
.-+:*. *: ~: + ++++ *++:+-+:++++.t,m+
.+
o... + +
- + + - + +o+ + + -.!1+.-.
.m
. nom n _..w+. +*1m o
+. * -
~o-++<
++t.*- - +v: w: : +:-: +-*+: +: t o: +-- +++-.o
~
+ ~ 4.+ ++:-
...o...+
+ttt. tta "4;::.:.<%.~..
+.....
-+ * + +
+
- ^
m4 4
w++
.-..o. o.u.......
.-.o+......7..~...
.-+a
.4
.m. t.u...
~ m.uo _..
. + ~.
o.~.~~ m...a..~.~...
.. ~
.o,.
4.
w.
. +.. +. +
+
.. ~
.u wm.. m..4.m.4 u.*nou... + m.c.. u..+, I o.u. m.+.-m..,. m....I...
m+
. m.u..
4 o.
++
.+ %.~.I+
+
-+~
u
.~_
.-u...-
..-.-.~m~..
o
+*
utt..
.o._
~+u
.. +. oa
.+u
+...
t.
t o...4~,.,_.
- 17. ~..
_._.o
- m..
..m u +.2mT a n.
.m<..e.--.,w..+
+
... _..m..4-4,.
4
~
u 4
..o............ +w.u..
.o+1 +T*'++
1
+ tot ++:"e
.a
.+": T*
m.....u.-y m
~. + ~
o - +
.o. n
.a..u.<
- u11 t.1%u
....~.
o o
m.
o.
.~ "., + + +
o 4
..~.... ~ ~.
4
+.4
-. + + * + + -
~
.~
,++++
4T*+ r+ + ~.
-+ + + + -
++*- "++++
-++++++
+++ * -++
..u.c.+--
+-
+-+ +- -* * * - + - - - + ~ * +
++ + + * -
. + +.. 4+$+
9
_4
.+.+1.+1 +e++:
+~ t. **: :
+
i e4 +4. ++.-t
-..++.+..+t
+,..
4 94
'..+-49 t.
-.-9 t4
+. -
9
.M+
+...
.9++.-+++4
- + 44 +
.t
.+.<-MH <
.4
.+
9
+4 4 -
t*-.+.
++t.+
++
H.+'++4+<
.+4+<
+t+.
++4 4 4
.4<
+t M
' M.4 f 4++
t+.+
++
4 t.h +++C.-t+.6 44+<..t+
.44 +4 4 +.c.&
+ +. -.. 4
. *d 4
+.-$4<
. e. 4.h.+' +4+It <
. MM.4
.f
+
+
4.4,.4,.4+ 4
+
M++'
44+
+ t.
.&+
M++
4 +t* -
4-tt t<* + + <4++++ + * **-+m+-+++++?++'
- +t 4..
e
.. -+ *T-e t4 + + + <
+4+
e e4%
+*+tt++tt t+tt I1tt. &W. + 4+.-.I.++.+,-,+ tt++<
4.
+H+
?++.
- 11 t
++++ ++++- + + + +'-4++-+- * * + +++. ++
- t"+-+-
tt4
++tf
- MM.'.'+4,4<.'W w 44
.4+4
.-o,
. 4 4+n.4 +..*e. H
..u.-..-i.+ n 4 44.m+.m.<*e T.4,. 4 4.< + 4*.44& o 44 4 4+4<<. 4****-n
- .4 4-+i.
~+
.*T*4..14 w
&I+
t 4 e-4*4 hoe 4+
o
&4 w..+u+
- * + ". *.
4 t++
+++'
.o u+
u 4++...m.&.+44 "4-
.,+.
on.,+
ut+. + o m m<
- 4. m.+ M+4
+t 4-<'
.4 44-.+
4
+444++
+.
.t+i 1-
&+++
+4 tt+.
4 4,H+4
+
+v t.
4 +g 4 4
-$ 4 $ $.
&.++
+
+4< ++
.tt+
- t r4 <*. S te.
4.499+t+
h +,
4
. +. + +.
M4. <*,
7..
- 44,-
44.--++++ 4++.---*M.4
.4 4 4 +4.+4
+ M t.< ' + 4 4 4 <
,.++ H,4+,,4 p <..
++
.449.+.*.
.4.=.-+++44 4-
. M.4 44^
-t t.-fa...4< 4---
44+4+++++
++4+4.. +pg.,4<
.+44
+9
+<
+
+
4++
+
+ + +
- ^:
- 444
.u ;.,.
- - ;;e
'+4-.4<'+t+
+ -
eM4' Mh
- ht--
.4
.,4 4
4 4,
MO k +
O t+ ' 4N+
+t
<*++4
++4+'"+t.4
+419
+4+
. eft
.O'49 M4+
..+-.t+t44-
- 9,'*8*44
4 M+
4 +
u
.*u o_
'.+
<.t. u<*4.++.R-.m--H-t4-<th444..
+4++ *44
<+ +4-4 M+e-<' - * + + + '
++M
+ +.
- +4
++9
< +, M. *h e - M 4,<4+++
M.4+
'M
-.44 ++.<*
+O+'
. + <-
H
-4+44'.
.t f
.d
' t t + +<
'.+9
+
.+4 w. o]'
t+
+ + + *M++*1M.'
&t.4 + 44 M9 t' 4
4,+ < $ 9 +4+
4+t.< "u++m m
-t.+t+++u+*
4. -+-
+4 u.
t 6
.+.
+4
+
4
+
4
..t.-4..t. o.'H+9
' *44 9-'e+
<.++4
+4
' + + + +
- h. +o'*++++&"
&..u u+ a.+t-t, +r' 4+..
..u,-
+ M. +i'n
..4 a-11 5 *.d..,+,.
++++
++ +.I!u. +... 11..,1. <lill-+.&ll
+-..
,lu 4 l,+w,..+4.+.4=
+
o o
+ +
++-..,4 llu+4-1<.
- ++. 4-4 H4 ne 1 i un.. n..+,"* <
n.d-.
H w
- ' 4 4
m.-v+
. m- -,,*1-
+
+
ww
+
+
^4+&.+
.u+,m
<.+ a
^-
&4++4.4+4+
+
o
+ +.
+..+o
. a 4 +++
^
+4++
44++
6++4. +.
+u
.+44 H4
.+ +
. o+-+w m <
q u' ' 4+ +;,. 4.^^+
+M+-.f '
44.
4
&4 M4 i-.+ 4'-^'^^t+.
++
+ 4 4<- +<> +
++++.
- o.-4
.+He 4 4 M++..
^ '^^ ^*
4 ' 4' 4*4 4.h' '+44 4' 44
.o+
- 4 w
-. +
<u+
4+.
m
.4
- 4 4 <.4' * : + +.t. *wo**
u.u t. ++m 1
g
+m-
+4
.+<
,. +
+4.
9<
.*. u,
.,t j
g
+ ww om t<4
+m.
+4
.c e
+ ow u..
- +, <
4444+ 4 e..t<..
++
. H.&
o o*
+*
o.
e u on-f+ f, <. 4
.M t 4-4 4+
t 4-t.
+.
+ 4e
%' ag.+-4.<44.tt+ <44+
++t
++
. + f4 -4
+&
. M4.++*
- Ht+ <d*++'
. ^.&.++++<>y+
4 444, p +4. H,.
- <4+ +4 M.4 ++ M + +< H f+4++4-4+++<
M4+
O4<'<' + + + +.
9-4
+44 hM+1
,,-+4
+
>v4++.-
44
<4++
+++4 H++^^++44
. + <
. ^::
^+ + + < ++4++++
H+
.+
. ^~^
^: ^ '
_o.
4, 4
up4
,4 4.
9 '.. + + '. ' <.'
'4'^
,'.y
' ; :^
4 M+<ry9 4
44
+4-
.+H
^
+4
^+. <
'4't-*++
^
^ :
,^
4
.+
r
+
44-g'.
^.~
^ --
++
^ : ^
-4'sm fu+
4++
44 4.,o, 444... 44 i 9 4+
4 + '<
o4'<
..:+...
- ^
^
^^ ^
^
't*'*<'O
.+.
.,"g t +'m 444 e n++<+ 4+4 44..
4149' &
4+
.. +.
H+ t..,9 <,4.
<, <i.
4.
4, 4 4<.
+.
t 4.44 +H+.
+
4 +
..+4 ie9+
4 +.
4t++ <'+
4 a
+
4 4.
4<....$
4p.
4,on.
t,.
.n.-h 4 4 4<4u 4
,9
<, 4
.174.-
y+
.u
%..w.M"4
+H
- t,+-
44. --
m <.
4,4,
....,...,w.,
,4-...
4
..+.,
4.
.o..... +1,.oww
++
- 't"+
w
+-.,,<,+,,
+,
&.u.e
.<+<
+-, <
. < +,,
- m.... <..4<>
49<,,+
..;:4 6+; :
4 4,44 < 4 4-....p9 4
+..H.<,.,444 4,+4 4.g<
4g
++<+4 4..
4.<.
9
.m.
4,,,
4 4
4 4+<...
,,9 4, 944.p><. +.
.H++-.
+
+44 e.
+ + -.$
H.
.+.9 4.<o,..p..
4 4
4,,,
.n4
.y
<r 4
4 +<... &9 g+
.444
+<,+
4 44 i
.,4 4 p
, ff<,
,4-9 <>, +<-(<.y
_,.4+ty <..
,,. t<.f t<...+y 9. y $,
..M++.,
9
- ^ +. N* t '...
p
.ff +.4ef,t+p
. *+t+*+
t4 -
.f p h
.g4 go.,. +<,.
p<,..
449
+< 4, 4.p
,f 44-t.
4 4444,f, + +t'
..+<
-.u..
.+++t< +4-a
. 4t..<v.Ht..,,&.
+++
- ++t t. M t -
4
.+4.,++<et< p-
..t,.4 4.
e 6:
N d
.__._.++t _..o r' _..,. Q t~
_4
.- + - _.
... ~. L....~.,.m.
m-
..~.m...-.
~
m._.._.
_.4_
t**_: -.~.. : j _.,
-~.+ t, _.. m.+4._
. t.~.
m
.m.._
~.t...
~.m..~.
.,..... m f 4
+
.!!*t~ m.. u,,.m._.
.t
.o-i
.m
. +. ~...
._. _1.
t 2.
.4
.. ~.. ~.
i t*.*.+.4 4
.+
~m
..2
.a..
~._.. +. _.
....t.*..*~*..
w _........T!
~.
41.. m_.. m4..m....t*t.~.
m....
...m.....
.~
4.
. __.~ __.
.u._.....
.+
.~
.m_.+... m.._*
...-.u
_4
,q 4_
m _... em...
.t.
..w. +...~
~
L~w.+. _,++ _ ---4. :.m.
. + + + + +
-.4-.++-
.~mtn.*2....o a.~
m.._.
.m
. -....,. - - _ __.+...
- +.. +. + - + + - -~ *++++.
t;._..
.m....
-. +,: + f++4... -. + + + + + + ~.++++ w
...... m
-~.
+
.+++
l
-+++t+" -
m,....
4.m +
+
.~..-
....~+t~+-
5'**$
p.
m.--.
4 m.4
..t.. ;..... _..
.y e..
4.44.-
- 54 _ :' :.
_...-.... 4 -. 4..
.m.-.-
.5;;2
. __ m_.,._.. - :.
- m. m
- + _..~.o-
_+ -
~.__,..o.
.L__
..... ~.
- .. - _o_.
.+.
m _. -- +_
-..~
... +
.u.
m.t 4..
.. ~
.,p...
_.g __.....;.......
,.4....
. ~.,.,..
i...
w._. _. a,.. ~.,.. _
..u.... -..; +.m
.t*:..
. u_
m.
....*t._..
-.a.
1 a._.
..t.
- + -.
.v.
... _..~.:
-.i.
..u..
- +.
.m..
u.._..
- +. _ _..
._4-
_._: f _.
.. _ _..3_
... u t..-
m o.~-
.. m _--
.m...
m.
._.m ie.. -. b+.
ML + _.
..m.... _
4 L, m..~
_ __- _.-.mL. _._4
.m
- 1p
.. w_..
L~..t _...,..
. +t t._
tm_.
..um
- _.... g.
..m..t*.......m t_._..
...o
.-+~_...w.-
m_
~.
. _.. ~.
+.
.p
~. + +,
~
~
. ~.
w._
.... tm
..-_+.m
...t, m,_..
. m
. _... _ - _.. ~ -
o._....:
.m.m -
o
+
.- _- _:.-_- u ~......y.
m _- -
.._~_
..p... _....
p:'. _..
..mt*
+++
t+~..-+~+~:e,.+.+.=._.m_.
+...-;
..mt, m.
,.~ _... ~. _.mem
. u.,.
.__....+
+....m
. _...+~
, o
_...v
~.
...,m.._
- q. _
. m+-
1..-_ _,
i
...__::::.- m:. -.
~. _.
T+"a*.
__.pb
..._._.u_.
. - - - + ~ -....
a.
4.+._.
._e..
m.-~_...
t
.a _.
m_
.u--
-._ _. y _.-
..~
.nn
. ::..:..- 52.4p 1
- ._+._,
- 3..
3 2
_4 w
_ +..
- 5,..~. ---.w
- +
m.
1----. :: ::.... - __...:
. +. _.
o-.
.. : ; h. _.
y y
.,m_...
++ : :
....4.
o_..
F e
m.
-m.
. m.
(
.m
--+..
- .m._-
d r.
-- y
.. _. ~ ~
u.
..m b.m.~~- $y..
i 1 - -
q tu
%.y
+.o,+.+..~
i
- ---++4++:
_ b.~... ie.,--
-m
+1
++++- +++++ ~ +
+ + + ~.
g a.
t* m_.
4 w.
~ + + + - " - ++++:
..m.-_
tj 3
, ++++..
1.t, +. *o+
++*
- ++
I 3
.4. _
4.
5_
.. _ +._._
i m..4 0
..>m.**.It.m.o.
-.+_a&._. :-: :: -+-
+ - + + ~ - - -. - - - + + + + ~
~ + + + + + -
.a. _
+
+++
+++-
--++
-_. ---++++
_..T r
~:
- a.
- M_e-+4..:-
-+~ +-++
2e
- -* -+++
~
a u
+
.-(.
__4
- t+~.---:
.. +.,.. _.
.t....
mu._
H.
.my.m. ~Q.... *,.
.~. ~. _._.
_a
..4. _.
w..
.m-u u,.r.,==..,._a + :.
.ue_-
d..
I
.mj M_
&..+.+.49...+..
-..t++:_
+. _._2._.._. _.,
u.
w_.
. t...-~..+
w o.
.... ~....;-
.~..t
)_
- r. : _.._ + _.
... L...
m 1
+
...~;..-. - - - _
.'.t+..-
4.L. *'+t. '+.*-..s..+-
4_
.... m
- r. :._. _-+ _.
....t. _
p_ _..
.. _:. ~-.+_
m-.
- t. m
~.m.~ m
_. _.........N..
m_
.g __.
3 :4.::
..._ ~. _...
...m
. ~.-
_. _. ~...,....... - _._
.. ~. -
....-,_.L._
R.f...
.,._ _. L...1...... _..
4
-.~,.. n...
4-., :
_.2
~
.w.y.
.~.
_ e.
. _. -......o...-
- u. -
..T.*.._
. ~ _.._
- ~ _
_..,.m
, ~. ~4.._.. _.-
,m_...._.w y._. --
m._ _... :
... ~ _
-. ~.
..t_
. t:+.+..
,.t _...
t.
m........ _ -
r
.4.,.u~.... _.
~..
r-
~. _ _
4
._.$..-._._u_
....g
.. L. -
.1.
t.....,. _
m.
. 10....w
~--u_.m._
,_.4._._._.
..4._.:.::... --.+ -
m.
_4
~.
.a
~...,.. _
...o_
.m
. i. - -. _ _
,.m-.~~._tm..
-.t
.. r p(}...
c.
g w
(.I L.:
._u._ t m
. _. m....-_......
... _ 5.
. _. +.. _.
._.#._4.,..._
.... a. e t*.". r. 2..
w r.
....u
_..~.
... ~ _..
..o_.__
.. _..,... _. ~. _......~~.
.. t
,9
_+
m C. L. + -
..p
.. ~... -
+
~
m.
g O.s..
.._.~.e.
.u +...
...n
-~_.4,.~._
~.. - -..,:_-. _
_..a.~_
1
.., L_ _.~.---. _....
.~
.~.
+ _.,.
. o...
r t....
. m. g y.._..
~
.~
.o g
4I
.44.+..%......~._..w..+.+._
4..r.--a-~.+_._.
.. +
_. ~. _.
~1.
m._.r..__ _ _. _.
. t4
._._..+_....v._
. _.. _ 4 e u
.m
._m m
,_. ~. _. _.~**t_. ~. _,.
.m.
,o.
+
O x.
p
- g. _.
.m m.
wg m.~ m...m..
...-u.
_:m
_.e.
I.
.,+..-.... w....-.
.. ~ _.
- 1 -
.~.. *.m.,..:t.~...._.
~. y w.
o_.
o.
.....e._
..m-
._-.ge
.-~..
w
. tyg.-
m_
1
..+
yw a
... 4 m.~....L.u.m.....a
. +.~_.
2,,r._...
~4..._4... r
. _.,. +
p.
e.
..a..
.... m..
.JL
- m..
,. a.
L-... _
~
.....__+_u.
. m._ _ :.
o.
.o..
~*t**_
1 u.a 4.
u
. +tt
_.....3-m.. ~.~..
+++ - -
~
w
++++4+++-
.+++4.+m-.+.u++._-.... ~ ~ -
1-
+..a.4..+..
. - + - __- +o_ a
~+.,-*+m+-4..+._---...."_---b-++-+~
+ * - - - -
o
++"+
...m...*.yt..o+-+....~
.+ +
.~....."**.+.t".+*' *. *. *.. * + ". *. - ' + * + ~ ~-~".+..+F.*.~..+.-
x
--.. - R..~
. -..c..---
. +
+-
+++ -- +
.. -.. = - _. -.. _ _. _ ~ - - -.. ~..
_..=,-a....-.-
.; o o.
_.m..L.m 4.+. a 1 6m
~. 3 4.e..+... +. ++1 w _+.
..Im. -...._..
- ++....~.2_
.~
.1, m
. _.. m 1
- *+,-. ++~_
- +.
.--_.w+e.
._+
+
o o ::::
.++++
m
.~
r++-+-+*+_ - :
a m..o.tt.t..
.+
- 4..
%. ~..
r.t++- + + 1+.1.+..o.+
+
~.-
+
- +.
i...
q._. 4.
g
.,4
_a.
42
.e
- 44 2~..24 42a..t.2 w..v.11.
m....4
_1-n
+ :: -
+:
- ++++
- +
4++++
t,1._- _++4-
.++++
+*.
o o.ww..m +t--.-.. + + ~ * ~.. +
4
_.+++....p-m.-
. 42 _
.y.~.~..-.... - +. _. ~.
.~
m._.*+* +..
- 4. m.,
.......a..-
m._ y;.,
7m m_44 ut.~. ~
.m
~
.~
o 4
~
-.m.m +..+ n.-
_.-..+.4-.~.-.~.+,,
+," L--.m..~+L.++,
J..-+-
~
. i e.e.+u 4 +*+-
A 4+.* -
-o :
- ; ; :ee t
z
- p,+ 4 -
-+'++t.+:+.+
. ~ 12..
n-.1.+m+.
.~.
__ u t _.,
..m._+.
..o
~
o L*+
..._..,._.4.
.. ~.
..., 4._ +41.... -
.m m
u._
o LLm-
- L
+.u.+h,!1.
..*** L. a...
- +. _.
..m 4
+.ou~.,
. ~_
.u.
.w 4
.~~ o.,
.. +.
L.
.:-pm
- m..
L
.._.u.u._.1__
_. 4. g.,
.a
... -.:. a... _ f, L
. ~.
...L.u7 m+m.~m.m. m.
- t.._
u m
~u,.
o
..-u--.,+
...J w_4
_. _..... r~ _.... _ ~..
i.._&
..+
u.. ~.. ~... ~....
..~
T.
4 m.
m.-
r....
m..u.
- -.. m. ~.~...
_..~ n.... :t
.~L..__
._..1..
u.e*.
...e
.~42....~...io
.. l.y..
me.f,.+I.
. ~.
...._+~L+ m_o
..-.m...m
.. ~
....t -..
u.
.m.
..,.)
_.~u.~
u.t
......t,.
.. o. -
.. t m..
+,L+.
+
_.m._
.y o
9 -,
.m
.~.
.***.m.t.
u4 4:a l.'i,..
--+m
+ b +.
,_m
- 4.. +. -
u
++._.m.+.
.a....1
.._4.~4
.,..+.+~*p_
- m.. ~.~~
m.-.
.. 1
-~+h.4++
+ + - +
.*.-L*++.
- + + + + <
.m :
- o mm.
- t. t+: +: m t. + ~..
+. u+-*. 1..
~ 2.-
- .:- :.:.:1
++
+
. m++-
...2 4._- *+-++*
.m.-
Lm
..t
.*I+..-%,o, %. m.
~~++ C1'..
m.
L
.1
- o
+.
t;?t. ~. +.
+ + * -
- -+++
+*+++
m+~++-+m-
. ~. -. -
- _
~.
.. ~.
+++.,-.
.-II.4..o...
~--._
.L.
,. ~. $.4..m.t._: _...: +:-..t._m. i...
,.~..
.m
,.-++
-m
~ -.
m.
n.u m.....
.m.
.. ~
.. _ ~
L,*
, ~..._ mlt.
.m 4.u. *m,
~-- ~. ~.L.n. I.m.I m
~
m...,.
~
~4
..t.w.m+
~
~
~ -..
.m.
. ~..+.
u..m.. **
.m.4.m
+
.n,; ; ;: 1 -Im*-*U
': :It.
.++*
+ ~ - + + + * *
++++ +-+--+*+-- + +
- 4
+m+t++
- +o
---+*+. * + + -
m-.m
.m
-.+-.:~:: ~.:
i'~+~.,
+
1
+ ' 1.....m.
4 m4*+
+~- + +
++. eu
..-....-... ~ _rb.4 5%.
. + o.-*b.
- .:*t-..m....a.2 *+I*+1.
,4.*
4 1+.
.--.4 m 4.m o
.4.
m-~
.+-*
+++1.p++-.*+W+
.m..e+.mLu+
...m
.++
m+
+-+*-++
-+ m
+-
+
+ ++-. + + ++
. -.44. t-~!tt!..a.tw ao 4.+t..u,.+ %.m**. +1
,...h*.-
+ + + ** - -
+
+
.u.*+.m
+.
4
.:.2.nw 4 w.wo.tm.m. m4.
.4-'-
w
. /:41 1L.+.
w
++
4
+
1 m
m
~
m
~...
I.l.
_ M.
4*7,.,
11
--T".+4 4.,.
4
.,.3,_.......m._.11... hu4.m.4.
-..!1T+tu,.-.
- -g $u m..
l.l
.4
..uo r t
o.
y
%T7.
w W
o Lp-+u.4 u
m.e.
nu u
.u.
.m.-ww 4m
. m :44.. % +-
-++t**
.o m.
f*T.+.
I
,. o+ 1,"p+
..p 4%
.m u -* * +
4m
+
'!+
76~7++T"
+
1+-*
.Tu no....
+
4%n.
.o
- +T..+ ~: t ~::--
- :....-...e 4
+1: :,. tu.
- . * * * *+- P -+ -.- ~.* : : : :
.o7++. m eu
+.
- e-+-+,,.,]
o.w
++
%w w-..
+
.+H4.4 4 +
+
+
m+,
+-494-.::::
.. 4.44 %.+.
4 m4m.. MM.*+u o-..o.... i i _. --
- -.u,- -... +..:.. :::--..
-u+.+,
mp
.... Am.
+: t pm 4 +
.. 11+w+.
. n o+
-+. +n.
+
.m+
ow4 e+
..4-
. mw.
w
- i
.'h4+'+"
- 4.+.
.+m h
+'r
~^^
a
- 4. -
- 4. m....*.4
^N
+.
.+ *+M,,++----t
" *e.+. T.3.-+
'.4.-#"+
. --+ m.1.m. a
.u
+..
- t*-
.-4.H1
- +- + * - + -4
-+h"*++
+**&
n
- 9. +:.4 o
+
.* m
.4 w,-.-
. u
+.:
-- :+
e
+*w4
,+%
w.m
..m. u,..uw
,w_.
w99
.m..p-..
.-4w:.!.
T, :,..
- *44
.o *
.U+,
u T.m._ *..,#49 e.
%+
, *T*..444 1.-
---,.o.7
+
+.
4m.
m
.m u,mu.
I rI e4+4,-*w-
,4.4 44.+.
-H4...
..++4. -,
o.
r.
I y-
~+..
ow I
4}144
- $4 4
1 h:-eh.gm,o 4 w4%.g.
%9o
- m....
o..+
9
+..
+4 w,p
,+
.4 q
.~!
+.
++
I T
I m
,u J w. 4 p-. e.nu 17.::.
44.h.
i 4+4-.
+++,-.
+
+,
.....M
$!.-4--44 4
4,.++
. 49.p,.9 :.
- -o,.:::
1
- ; '.+: +: 4' +:
..H.yT+
+
~4444.p 4.
4444.,.
+. +-.
,++7
-M..
. Ti+
- 4
...-1.+4-
. MIT<.(
w w&.++.+.
w 4
. w
,w Mp+4
%.+
4 w
w
..m.w.w+-*i i
.m.+
+
,,4111 1 e *4., +1,.4. +4m b. +4 t+'*1 4 q.
+44 44.
4,.,4.
....$*tt t-t*.,.
++
- 1.-
4
- + t+
..+io oA
' _- tul..
.. 1+t t - +1T. '.
<..q ql..e n. T..4
+ t H-ul
+ mt *+-.*&..
~+ +++
- ++