Letter Sequence Other |
|---|
TAC:10026, (Approved, Closed) TAC:11262, (Approved, Closed) TAC:47044, (Approved, Closed) TAC:47045, (Approved, Closed) TAC:47876, (Approved, Closed) TAC:47877, (Approved, Closed) |
Results
Other: ML19291B901, ML19291B903, ML19309G757, ML20004B639, ML20011B241, ML20011B243, ML20031C991, ML20039F146, ML20040D603, ML20041C142, ML20041C150, ML20050F889, ML20052F775, ML20052G848
|
MONTHYEARML19270H4761979-07-23023 July 1979
Forwards Request for Addl Info to Be Sent to Licensee in Order to Complete Review of 770722 Submittal Re Technical Assistance Contract 10026.Response Required within 45 Days
Project stage: RAI
ML19254D1071979-09-18018 September 1979
Requests Addl Info Re Loss of Offsite Power on 770920 to Aid in Review of Offsite Power Sys Adequacy.Requests Reponse within 90 Days
Project stage: Approval
ML19250C3611979-10-30030 October 1979
Forwards Request for Addl Info on Degraded Grid Voltage Determined During Review of 770722 Submittal Re Second Level of Undervoltage Protection for Engineering Safety Feature Loads.Proposal for Tech Specs Change Required
Project stage: RAI
ML19291B9031979-12-0707 December 1979
Adequacy of Station Electric Distribution Sys Voltage
Project stage: Other
ML19291B9011979-12-0707 December 1979
Forwards Rept Adequacy of Station Electric Distribution Sys Voltage
Project stage: Other
ML19290E0331980-02-13013 February 1980
Forwards Request for Addl Info Re Loss of Offsite Power Events.Requests Response within 90 Days
Project stage: RAI
ML19312D3491980-02-29029 February 1980
Forwards Request for Addl Info Re Adequacy of Station Electric Distribution Sys Voltage to Complete Review of
Project stage: RAI
ML19309G7571980-04-28028 April 1980
Forwards Addl Info Re Adequacy of Station Electric Distribution Sys Voltages & Replacement Pages for 791207 Rept in Response to NRC 800229 Request
Project stage: Other
ML20004B6371981-05-21021 May 1981
Application for Amend of License DPR-57 to Revise Tech Spec for Instrumentation Which Initiates Disconnection of Offsite Power Sources
Project stage: Request
ML20004B6391981-05-21021 May 1981
Tech Spec 3.2-12 for Instrumentation Which Initiates Disconnection of Offsite Power Sources
Project stage: Other
ML20031C9801981-10-0202 October 1981
Application to Amend Licenses DPR-57 & NPF-5,changing Tech Specs Re Limiting Conditions for Operation & Surveillance Requirements for Degraded Voltage Relays & Loss of Offsite Power Relays
Project stage: Request
ML20031C9911981-10-0202 October 1981
Proposed Tech Specs Re Limiting Conditions for Operation & Surveillance Requirements for Degraded Voltage Relays & Loss of Offsite Power Relays
Project stage: Other
ML20011B2431981-12-0202 December 1981
Corrected Tech Spec 4.9.A.6 for Limiting Condition for Operation & Surveillance Requirements Re Degraded Sys Voltage
Project stage: Other
ML20011B2411981-12-0202 December 1981
Forwards Corrected Tech Specs Pages 3.9-4 & 3.9-4a Re Degraded Sys Voltage,Per 811002 Amend.Typing Error Corrected.No Wording Changed
Project stage: Other
ML20039A9831981-12-0707 December 1981
Forwards Request for Addl Info Re Adequacy of Electric Distribution Sys Voltages.Response Requested within 30 Days
Project stage: RAI
ML20039F1461981-12-10010 December 1981
Advises That Components,Including Relays,Potential Transformers,Associated Auxiliary Relays & Power Supplies Are safety-related Equipment.Util Should Propose Tech Spec Changes That Include Surveillance of Components
Project stage: Other
ML20041C1501981-12-31031 December 1981
Station Auxiliary Sys Offsite Source Voltage Study
Project stage: Other
ML20040A9471982-01-12012 January 1982
Responds to 811207 Request for Addl Info on Electric Distribution Sys Voltages.Info Includes Test Results or Vendor Certification Re Contactor Capability for Continuous Operation at 98.2 Volts.Drawings Encl
Project stage: Request
ML20040D6031982-01-26026 January 1982
Proposed Tech Spec Pages Re Emergency Power Sys
Project stage: Other
ML20040D5991982-01-26026 January 1982
Application for Amend to Licenses DPR-57 & NPF-5 Changing Tech Specs Re Surveillance of Undervoltage Relays & Associated Components of Emergency Power Sys.Response to NRC Encl
Project stage: Request
ML20041C1421982-02-18018 February 1982
Forwards Southern Co Svcs Hatch Units 1 & 2 Station Auxiliary Sys Offsite Source Voltage Study, Clarifying Emergency Power Sys Capabilities.Assumptions 15,21 & 24 Outlined
Project stage: Other
ML20050F8911982-04-0505 April 1982
Safety Evaluation Re Adequacy of Facility Electric Distribution Sys Voltages.Design Acceptable
Project stage: Approval
ML20050F8891982-04-0505 April 1982
Notifies That Electric Distribution Sys Voltages Comply W/ General Design Criterion 17 & Are Acceptable Per 791207, 0428,1009 & 820112 Responses
Project stage: Other
ML20052F7821982-05-0606 May 1982
Safety Evaluation Supporting Amends 88 & 27 to Licenses DPR-57 & NPF-5,respectively
Project stage: Approval
ML20052F7751982-05-0606 May 1982
Amends 88 & 27 to Licenses DPR-57 & NPF-5,respectively, Amending Tech Spec Resulting from Reanalysis & Mod of Plant Sys & Components Deemed Necessary in Order to Avoid Consequences of Degraded Grid Voltage Condition
Project stage: Other
ML20052G8481982-05-14014 May 1982
Requests Remittance of Class III Fee for 811002 Application Re Degraded Grid Voltage
Project stage: Other
1981-12-02
[Table View] |
Similar Documents at Hatch |
|---|
|
Text
._
00 W
TABLE 3.2-12 C
CR INSTRUMENTATION WHICH INITIATES THE DISCONNECTION hp 0F OFFSITE POWER SOURCES to O
Sks Action to be Taken g
Required Required if the Number of Ref. No.
Instrument Operable Required Trip Setting Required Operable (a)
(b)
Channels To Trip (c)
Channels Is Not Met 1
4.16 Kv Emergency Bus 4/ Bus 2/ Bus
)2496 volts (d)
Undervoltage Relay At 2496 volts (Loss of Voltage time delay will be Condition)
(;4.5 seconds 2
4.16 Kv Emergency Bus 4/ Bus 2/ Bus 3 3120 volts (d)
Undervoltage Relay At 3120 volts us
's (Degraded Voltage time delay will be n
so Condition) 4;17.0 seconds N'
)
NOTES FOR TABLE 3.2-12 a.
The column entitled "Ref. No." is only for convenience so that a one-to-one relationship can be established between items in Table 3.2-12 and items in Table 4.2-12.
b.
This instrumentation is required to be operable during reactor startup, power operation, and hot shutdown.
c.
The allowable values for the trip setting are the same.
d.
With the number of operable channels one less than the required operable channels, operation may proceed until performance of the next required instrument functional test provided the inoperable channel is placed in the tripped condition within one hour.
y m.o.
,e., o.,.
k 1 1 l
I t i i i I
l t a =
l I
l at e a
E
}
n ec v
?
g a.
h 8
E W
u e
a w
3 5
f)
(M fh w m s
5 ch g g g
m m
(%
[\\
P,.,
Ak (M
.(
+
f
- - o N
a I %
/3
/h l [
,h5
~
s
[
E E 5 2
a o
e d
a a
?
O 2
m e
6 6
6 4 5 " 5 E
E B
l W e s s s
D EE E
E R EY.
DATE ev Dn sC RIP TIO N A PPM.1 APPR.2l APPR 3; APPM 4l APPR S Southern Company Services, Inc. roa CONTINUED ON SMnET PLANT HATCH - WIT Wo. /
TYPXAL BUS WDERVOLTAGE PROTECTION LO6/C 9/AG.
Pnosuc,u.a.
owa. No.
- sung, n n y.
F A - UVL-l i
O
