ML17174A577

DOP 6600-8, Diesel Generator Normal-Bypass Switch Operation.

ML17174A577
Person / Time
Site:	Dresden
Issue date:	07/31/1976
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML17174A578	List: ML17174A577 ML17174A579 ML17174A580 ML17174A581 ML17174A582 ML17174A584 ML17174A585 ML17174A590 ML20062K353
References
6600-8, NUDOCS 8012160517
Download: ML17174A577 (2)

Text

AITACH Mf;AJT z. DOP 6600-8 DIESEL GENERATOR ~ORMAL-BYPASS Revision 0 SWITCH OPERATION July.1976 A. .PURPOSE To provide an outline for determining the mc>st clesirable selection the 2/3 diesel generator use for eithe.r Unit 2 or l, assuming a.*

• *

• simultaneous start signal from both units.

B. REFERENCES

1. None.

C*.

• PREREQUISITES

l. None.

D. PRECAUTIO~~

l; *. None E. .LIMITATIONS AND ACTIONS

.1. Placing the diesel generator ioode switch in NORMAL gives other unit priori fy.

a a* This procedure assumes that all things. are equal.

• CondJt.ions r after a simultaneous signal from both units may require~ that the priority of the diesel be changed. .,

• F. PROCEDURE

1. Use attached table to determine ~witc~ position as follows::

a. Enter table from left with conditions of Unit 2.

b. Move to right with cond i ti ons of Unit 3.

c. Move to right for .status of Unit 2 diesel generator.

d. Move to right f?r. status of Unit 3 diesel generator.

e. Read position of the (normal-bypas~) swJtches for panel~

902-8 and 903-8 in the last two columns.

G*.

• CHECKLISTS

1. None.

H. *TECHNICAL SPECIFICATION REFERENCES

. *~"I ., * * --~,,,,'

• • l *

• None. "' I . .--. . :*

~U\.~';,.~t~*.

AUG06\976 .

s 0121 s.o'iY1 ---*- -

DOP 6600 ... a Revision. O TABLE *1

• U2 Diesel U3 Diesel Switch Switch

• Unit 2 Status Unit 3 Status Status Status 902-8

~

903-8 Operable** Bypass Bypass Run or Ope~able Normal Bypass Start-up. lnop Bypass. Bypass

• Run or Rx Temp >212 lnop Bypass Normal Start-up Operable Bypass Norma 1 .

Rx Temp. ::> 212 Operable Bypass Normal *

.. lnop

' Bypass Normal Shu,tdoWn lnop Bypass Normal '. .

or Refuel Rx Temp < 212 Operable Operable lnop Bypass Normal Bypass Bypass Bypass

• .Bypass.*.

Shutdown lnop "'

- Bypass Normal or Refue 1 Operable Normal Bypass Rx .Temp < 212' *:- Run or Operable Norma 1

• Bypass Start-up lnop Normal Byp.ass

. Rx Temp > 2 12 l'nop.

Operable Normal Bypass

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