ML20085H680

Experimental Corp Operating Experience Rept for Sept 1969 - Feb 1970

ML20085H680
Person / Time
Site:	Saxton File:GPU Nuclear icon.png
Issue date:	02/28/1970
From:	SAXTON NUCLEAR EXPERIMENTAL CORP.
To:
Shared Package
ML20083L048	List: ML20085C449 ML20085C452 ML20085C455 ML20085C458 ML20085C461 ML20085C464 ML20085C467 ML20085C472 ML20085C477 ML20085C480 ML20085C483 ML20085C490 ML20085C500 ML20085C501 ML20085C504 ML20085C508 ML20085C513 ML20085C517 ML20085C540 ML20085C543 ML20085C546 ML20085C583 ML20085C586 ML20085C590 ML20085C592 ML20085C602 ML20085C605 ML20085C616 ML20085C620 ML20085C622 ML20085C625 ML20085C628 ML20085C630 ML20085C633 ML20085C634 ML20085C637 ML20085C805 ML20085C809 ML20085C826 ML20085C835 ML20085C840 ML20085C844 ML20085C904 ML20085C913 ML20085C966 ML20085C973 ML20085D041 ML20085D048 ML20085D052 ML20085D059 ... further results
References
FOIA-91-17 NUDOCS 9110280348
Download: ML20085H680 (3)

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SAXTOli liUC1EAP rgircilD5f3AL CORI(l<ma CIEldTitJG EXPEy,7y);cg ILEIDRT Yor the teriw 08Pte.ilier 1, 1969 - Februar,Y 28, 1970

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413 1 SAXTOM !!UC19.h FJ.pDilm!IAL CO?JWTION k

k OPCtATING INSTitVCTION 413 IPJOEAR INSTR'RFNTATICC

2. Cond! t ions

1. The A.C. vital bus is energized.

1 II. Preeriutiens g 1.

Never renve both tource rance EF, channeh frca thnn service when a core 16 installed and the intermediate"rnngc chnnucle red lere 10-10 amps. i The DF3 high voltage must be turned off when the reactor is operat ng at pow'er levels above 1010 amps on int (mediate rance.

3.

If one power range channel fails while the reactor is in operation *tnd the channel will be deenergized for repairtThe reactor load will be held r:onntant.

be set for eingle channel operaticn. 6 III. Instructient . both ir.*.ormediat e range, and

1. For reactor startup, beth source rance.all three power t-e range chann 2.

prior to reactor startup the r.u: lear inrtrumentation 413 A-C. system must checked out in accordan e. with prmartup checkoff lists

' l ar

a. for scram recovery or for startups boire made w f ing only instrumentation a modified checkoff may be used by per om those steps in h13 A-C which are marked 3*. ff b.

Far a series of tests or training startups,steps a modified in cheek-o may be used every 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by perfoming only those b13 A-C which are marked 3 and those marked l ih

• • .d c.

If the reactor startup is delayed and nore than 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> have e aps from the last check-out, perform only those steps in h13 A-C wh are marked **. d cted d.

The prestartup checkoff of nuclear instrumentation must be con u by or directly supervised by a licensed reactor operator.

T hr n.inianum).

Allow sufficient wamup time (4 hre normal diat e,-

3 4.

During reactor startup closely monitor TSc the source and intemeriartup recor range level and startup rate indicatore.be switched as the to the higher i to

( 5. As neutron icvel is increatoc, ensure that an overla

' ' power rance channels.

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10 25-63

' stnd.t 41312

6. k' hen the intennediate range neutron level exceeds 10-30 amps tur-off the BF3 high voltage. t

7. During startup when the m wer level reaches 10%, position the power level scram selector in IIIGli and shift from single channel to coincidence serarn. Check that 10% relays have operated to turn on

the RATE SCRAM OFF lights on the Startup Rate Disconnect Panel.

8. k' hen operating at power levels of less than 10% place the power level scram selector in the ifW position and shift from coincidence to SINGII CHAlmEL.

9. During shutdown or after eergy tum on the BF3 high voltage when the intennediate range reads 10-w amps.

Sutraitted:M.$ d

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Supervisor of Operations and Teste Approved e ,[ i 1[ t_ e*

'Iteactori 1[ra ~ Superintendent V g 5

a

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