ML20244A927
| ML20244A927 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 10/10/1984 |
| From: | Resch C BISHOP, COOK, PURCELL & REYNOLDS |
| To: | Bloch P, Grossman H, Jordan W AFFILIATION NOT ASSIGNED, NRC, Atomic Safety and Licensing Board Panel |
| Shared Package | |
| ML20097F079 | List:
|
| References | |
| FOIA-84-487 NUDOCS 8906120200 | |
| Download: ML20244A927 (4) | |
Text
y Q U NWUM
~"
3'l C3Ni20',Y-.!,'.ch,rronER Law orrects or BISHOP, LIBERM AN, COOK. PURCELL & REYNOLDS #' "
1200 SEVE NTE ENTM STR EET N W-
'" "E* '0""
WA & MING TON, D.C.2OO 36 B SHOP. Lis t nMAN & COOM (2 02J 8 57-9 8 0 0 oss AvCNuc or twc aute:C*5 N C
- V CRM. N E w VC R M 60036 TELEM 440S74 INTLAw ut (2tt7oe-oico TELEn 322*S7 WRITER'S CtRECT Ctab october 10, 1984 (a c a> 857-9863 Peter B.
Bloch, Esq.
Dr. Walter H. Jordan Chairman, Atomic Safety and 881 West Outer Drive Licensing Board Oak Ridge, Tennessee 37830 U.
S, Nuclear Regulatory Commission Washington, D. C.
20555 l
Herbert Grossman, Esq.
U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Re:
Texas Utilities Electric Company, et al.
(Comanche Peak Steam Electric Station, Units 1 and 2), Docket Nos. 50-445-2 and 50-446-2 Your Honors:
I am enclosing appropriately numbered, unmarked copies of those Gacuments, not as yet bound into the transcript, that were introduced by Mr. Davidson in the course of the September 21, 1984 in camera hearing in the above-referenced matter.
The same are submitted, in accordance with the Board's direction, for inclusion in the hearing transcript.
We had hoped to submit these documents early last week, but encountered unavoidable delay in obtaining unmarked copies from the Comanche Peak site.
We trust, however, that'no one has been' inconvenienced.
We have also this day hand served copies of the attached documents on Messrs. Clements, Treby and Roirman.
Respectfully submitted,
- 0. w l c1. u.u.lv Carol A. Resch CAR /as Enclosures
=
890612O200 890607 PDR FOIA HU3E04-487 PDR c___-_____-____________.
l' k
R UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the Matter of
)
)
TEXAS UTILITIES ELECTRIC
)
Docket Nos. 50-445-2 and' COMPANY, - _al.
)
50-446-2 et
)
(Comanche Peak Steam Electric
)
(Application for Station, Units 1 and 2)
)
Operating Licenses)
CERTIFICATE OF SERVICE I hereby certify that copies of documents as yet unbound into the transcript of the September 21, 1984 in camera hearing in the above-captioned matter were served upon~the following persons by hand-delivery, or overnight' delivery
- this loth day of October, 1984:
Peter B.
Bloch, Esq.
Stuart A.
Treby, Esq.
Chairman, Atomic Safety and Office of the Executive Licensing Board Legal Director U.S.
Nuclear Regulatory U.S.
Nuclear Regulatory Commission Commis sion Washington, D.C.
20555 Washington, D.C.
20555
- Dr. Walter H. Jordan Anthony Z. Roisman, Esq.
881 West Outer Drive Executive Director Oak Ridge, Tennessee 37830 Trial Lawyers for Public Justice 2000 P.
- Street, N.W.
Herbert Grossman, Esq.
Suite 600 U. S. Nuclear Regulatory Washington, D.C.
20036 Commission Washington, D.C.
20555 Mr. William L. Clements Docketing & Service Branch U.S. Nuclear Regulatory Commission Washington, D.C.
20555
%t a LJ Carol A.
Resch cc:
Robert Wooldridge, Esq.
T l
l l*
1
4*'
l i
i
.i '
3.6 ALARM CIRCUITRY 3.6.1 Inverter l
1.
Loss of output AC is indicated by dropping out relay ACL. One set of normally open - normally
]
closed form C contacts is provided to operate alarms.
{
2.
Overcurrent sensing is provided through use of current sensor ICSR, which has an adjustment
{
range of 30% to 150% of full load.
1CSR in turn operates time delay relay CSRT. CSRT has an adjustable time delay of.3 to 30 seconds. An overload of the magnitude and length of time set on the above relays will trip the output breaker of the inverter and light the overcurrent indicat-ing lamp. After removal of the overload, the sensor may be reset via the overcurrent reset
)
1 pushbutton.
I l
3.6.2 DC Bus
)
1.
High DC voltage is alarmed by the HV relay which will provide an external alarm through a set of normally open - normally closed Form C contacts.
The high voltage relay will also trip the rectifier AC hput breaker which can be reset af ter the input voltage has returned to normal.
2.
Loss of DC input is indicated by relay DCL which will drop out on loss of DC input voltage.
Ex-ter n1 indica'cion is provided through a set of j
normally open - normally closed Form C contacts.
3.6.3 Rectifier 1.
Loss of AC input voltage is alarmed by relay 1ACL.
This relay will drop out upon' loss of AC input.
External indication is provided by one set of normally open - normally closed Form C contacts.
'l i
I t
b 5
t
-15A-l
1 I
\\
4.0 OPERATING DATA j
Title Description i
AC operating voltage 425 to 519 VAC DC operating voltage 105 to 140 VDC i
Ferro-resonant transformer input 190 to 260 VAC (rms)
Output rating 0.8 PF 7h KVA Output voltage 19, 60 Hz, ll8V rms Output voltage regulation t2% from 2/3 load to full load Output frequency 60 Hz, +0.5 Hz Harmonic distortion Output voltage total harmonic j
distortion will not exceed 5% fmm 2/3 load to full load Overloads Inverter output current will 1
not exceed 150% rated output current in the event of a faul t.
(Short circuit condi-
.tions ).
Inverter will operate into a short circuit. When short is removed, inverter output will mturn to normal.
Ambient temperature The system is designed to l
operate in an ambient tempera-ture of 00 0
C to 49 C and a rela-tive humidity range of up to 95%.
Protective Relay Set Points H2 - Pickup at 144V Dropout at 140V.
ACL - Not adjustable.
DCL - Not Adjustable. Coil with 2.7 K Ohm resistor in series to pickup at 105VDC.
IACL - Not adjustable.
CSRT - 15 Secs. delay.
1CSR - Curve 3 delay, 3.5 A.
Full load current, 120V 60 Hz.
Trip at 4.0 Amps. i
_ - _ _ _ - - _ _ _ _ _. _ _ _