ML20112D535
| ML20112D535 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 08/01/1984 |
| From: | LONG ISLAND LIGHTING CO. |
| To: | |
| References | |
| I-SC-LP-015, I-SC-LP-15, OL-4, NUDOCS 8501140347 | |
| Download: ML20112D535 (2) | |
Text
(.
p
~
~
SMPS-1 FSAR U3 x metal-enclosed switchgear with incoming main circu1%4 bQpagr Tne 480 V emergency buses are physically isolated anM 'I4 electrically independent.
7.
u 00
~i The normal and safety related 4,160-480 V transformers ar,e,Qaped!
1,000/1,333 kVa, 3 ph, 60 Hz.
The circuit creakers used as 'ous ties in the doucle ended load centers and all incoming main circuit breakers are rated 1,600 amp continuous and have an interrupting capacity of 50,000 amp symmetrical.
All other teeder breakers are rated 600 amp continuous a nd have an interrupting capacity of 30,000 amp symmetrical with instantaneous trips and 22,000 amp symmetrical without instantaneous trips.
All load center breaxers are air-magnetic, drawout type.
Power for motors approximately 100 hp and smaller and other small power requirements
- are, in
- general, ted from motor control centers (MCCs) supplied trom the normal or emergency 480 V unit suostations.
The MCCs are self-supporting metal-clad structures with circuit Dreaker type combination magnetic reversing or nonreversing motor starters and moloed case circuit breakers.
Breakers used in combination starters have a
14,000 amp symmetrical interrupting capacity.
breaxers used for branen feeders have 22,000 amp symmetrical interrupting capacity.
Emergency MCCs are physically separated such that any design basis event which may afrect one redundant system shall not jeopardize proper operation of the other system.
Class IE circuits are designed to operate as required under lowest postulated transmission system conditions.
Essential nonsaf ety related 480 V loads required during the loss of offsite power are supplied trom the emergency 480 V system through two circuit breakers connected in series and pnysically separated from each other.
Certain nonsaf ety loads are tripped l.
free of the emergency buses at the time of a LOCA (see Table 8.3.1-1 f or details).
8.3.1.1.5 Onsite Standby Power Supply The rating of each diesel generator set is as follows:
Continuous (8,760 hr) 3,500 kW 2,000 hr 3,500 kW 160 hr 3,500 kW 2 hr per 24 hr period 3,900 xW 30 min 3,900 kW The 2
hr rating in any 24 hr period is the rating'without reducing the maintenance interval rctablished for the continuous rating.
)
8501140347 840801 PDR ADOCK 05000322 g
PDR 8.3-5 Revision 26 - Apr11'1982
q 1
h )S,.
/
J CO
.\\.
~
~5 Q
- 5 a m
g(,ggf
.[
y y
~3 D
g k
$\\
Y
\\ i "s t i
Tzr i%
g 's JU s
e
)
1S*.
i O
(/)
.%,O 1
\\
r g
k 1
- 8 n
1o Sgi
- s *l i *h o "I W'g 't %
h
.