Calculation E4C-015, Revision 0, TLU Calculation for Loss ... · Subject TLU Calculation for Loss of Voltage Relays at Class 1 E 4.16 kV S IICCN CONVERSION: CCN NO. CCN-witchqear

Attachment 2 to Enclosure 2

Calculation E4C-015, Revision 0TLU Calculation for Loss of Voltage Relays

at Class 1 E 4.16 kV Switchgear

CALCULATION TITLE PAGE ICON NOJPRELIM. CCN NO. I PAGE OF

Calc. No. E4C-01 5 ECP No. & Rev. 010400749-16

Subject TLU Calculation for Loss of Voltage Relays at Class 1 E 4.16 kV S

IICCN CONVERSION:CCN NO. CCN-

witchqear. Sheet 1 of 53

SONGS Unit 2 & 3 Q-Class I1

Equipment Tag No. 2(3)A04 and 2(3)A06

System Number/Primary Station System Designator 1804 / PBA. PBB

Tech. Spec./LCS Affecting? E] NO S YES, Section No. SR 3.3.7.3.b

Site Programs/Procedure Impact? Z NO El YES, AR No.

10CFR50.59/72.48 REVIEW CONTROLLED COMPUTER PROGRAM / DATABASE

IS THIS CALCULATION REVISION PROGRAM / DATABASE NAME(S) VERSION / RELEASE NO.(S)BEING ISSUED SOLELY TO [] PROGRAM

INCORPORATE CCNs/ECNs? El ALSO, LSTED BELOW

0 NO 0l YES El DATABASE

AR No. N/A (see note 2) ACCORDING TO SO123-XXIV-5.1

RECORDS OF ISSUES

REV. TOTAL PREPARED BY: APPROVED BY:

DISC. DESCRIPTION SHTS. (Print name/sign/date) (Signature/date)LAST SHT. Initial POS Block - Requires P0S T3EN64 Initial POS Blo•tRequires POS T3EN64

This cab, was issued ORIG. PQS VER. BY: TL FLS X . PQS VER. BY"0 to support ECPs Joon Kim 3 -L3o -o7 Tom Ra-k

010400749-12,13, IRE / -Other POS VER. BY:16, & 17 Bill Lenna r0 3 .'o[_4o7

ORIG. PQS VER. BY: - FLS P0S VER. BY:

IRE PQS VER. BY: __ Other P0S VER. BY:

ORIG. POS VER BY: - FLS P0S VER. BY:

IRE P0S VER. BY: Other POS VER. BY:

Space for RPE Stamp, identify use of an alternate calc., and notes as applicable.

Notes:

1. This calculation was prepared to support ECPs 010400749-12, 13, 16, & 17 to replace the existing LOV relays (CV-2) withBasler relay BE1-27.

2. 10CFR50.59/72.48 REVIEW is not required because this calculation also support PCN 577.

This calc. was prepared for the identified ECP. ECP completion and turnover acceptance to be verified by receipt of ECP Turnover/Closure formdirecting Conversion. Upon receipt, this calc. the represents the as-built condition. ECP Turnover/Closure form date by

SCE 26-121-1 REV. 9 12JQ5 IREFERENCE:S0123-XXV-7.151

SITE FILE COPY

Site File Copy

E4C-015

CALCULATION CROSS-INDEX [ ECN NO./PRELIM. CCN NO. PAGE - OF

Calculation No. E4C-01 5 Sheet 2 of I CCN CONVERSION:CCN NO. CCN-- I

INPUTS OUTPUTSCalc. rev. Does the Identify output interface

number and These interfacing calculations and/or Results and conclusion of the output interface calc/documentresponsible documents provide input to the subject subject calculation are used in calc/documentFLS initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., orand date revision of the quhject calculation. and/or documents, Change? tracking number.

Caic/Document No. Rev. No. Caic/Document No. Rev. No. YES I NO

Calculations Technical Specification 174 YES PCN 577E4C-082 3 DBD-S023-120 6 YES ECN A42882

Rev. 0 / E4C-090 5 90042 12 YES ECNs A44943, A44944,

E4C-098 3 A42685, & A4268

E4C-130 1J-ZZZ-069 0 E4C-098 4 YES ECN A42167M-073-061, CCN 4 4

Drawings S02-11-11.1A-2 4 YES AR 010400749-2630192 12 S02-11-11.1B-2 4 YES AR 010400749-2630220 sh. 1 13 S03-11-11.1A-2 4 YES AR 010400749-26

7/4 30220 sh. 2 2 S03-11-11.1B-2 5 YES AR 010400749-2630299 18

IDA 30230 sh. 1 1530230 sh. 2 230300 16

30301 1432192 1332220 sh. 1 1232220 sh. 2 332299 1432230 sh. 1 1232230 sh. 2 432300 1432301 13

SCE 26-424 REV. 6 12/05 [REFERENCE: S0123-XXIV-7.I5[

CALCULATION CROSS-INDEX

Calculation No. E4C-01 5 Sheet 3 of __

INPUTS OUTPUTSCaic. rev. Does the Identify output interface

number and These interfacing calculations and/or Results and conclusion of the output interface calc/documentresponsible documents provide input to the subject subject calculation are used in calcidocumentFLS initials calculation, and if revised may require these interfacing calculations require CCN, ECP, TCN/Rev., orand date revision of the subject calculation, and/or documents. Change? tracking number.

Caic/Document No. . . Rev. No. Caic/Document No. Rev. No. YES I NO

Vendor DWGs1814-AF316-MOO05 0

Rev. 0/ 1814-AF316-M0007 0

SONGS documents and procedures90042 12DBO-SO23-120 6DBD-S023-TR-EQ 8JS-123-103C 4

S023-403-12 2"• , S02-11-11.1A-2 4

S02-11-11.1 B-2 4S03-11-11.1A-2 4S03-11-11.1 B-2 5

;7 S023-3-3.23.1 24

Technical Specification 174UFSAR 24

SCE 26-424 REV. 6 12/05 [REFERENCE: S0123-XXIV-7.15]

ICCN NO.!E&TS DEPARTMENT PRELIM. CCN NO.CALCULATION SHEET

Project or ECP: SONGS 2 & 3 Calc No. E4C-015

Subject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchgear

1Paoe ofI

ICCN CONVERSION:CCN NO. CCN

ShArt 4 AfSheet 4 of

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE

0 Joon kim Bill Lennartz A cŽ

1.

2.

3.

4.

5.

6.

7.

8.

9.

TABLE OF CONTENTS

PURPODE ................................................................................................................... 5

RESULTS/RECOMMENDATION/MARGIN ............................................................................ 7

ASSUMPTIONS ........................................................................................................... 14

DESIGN INPUTS ............................................................................................................. 18

METHODOLOGY .......................................................................................................... 23

REFERENCES ............................................................................................................. 27

NOMENCLATURES ...................................................................................................... 29

CALCULATION ........................................................................................................... 31

ATTACHMENTS .............................................................................................................. 45

4-SCEC26-426 Rev. 3 1 Reference: SO 123-XX IV-7.151

E4C-015

E&TS DEPARTMENTICCN NO./PRELIM. CCN NO. Paae of

CALCULATION SHEET CCN CONVERSION:CCN NO. CCN


Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear Sheet 5 of

REV ORIGINATOR DATE IRE IDATE REVI ORIGINATOR DATEI IRE DATE

0 Joon kim Bill Lennartz II I I

PURPOSE

1.1 Purpose

The purpose of this calculation is to perform an analysis associated with the Undervoltage Relays(Basler BE1-27) used for Loss of Voltage (LOV) Protection in the Class 1 E 4.16 kV Switchgears2A04, 2A06, 3A04, and 3A06. The following analyses are performed for these relays:

A. Determine the Total Loop Uncertainty (TLU) and Allowable Value Tolerance (AVT)B. Determine the Nominal voltage tap and time dial setting of the UV relayC. Determine the As-Found and As-Left acceptance for the voltage tap pickup setting and time delayD. Determine the New Technical Specifications Allowable Values

1.2 Background

The current design of the SONGS diesel generator (DG) and Loss of Voltage Signal (LOVS) systemsfully comply with their surveillance requirements (SRs), described in 3.3.7.3.b ("Loss of VoltageFunction") and 3.8.1.11 .c.1 (AC sources - Operating), in verifying that the system responds properlyand starts the DG within 10 second. For the supporting component basis, the design calculationsassume that to meet these SRs, the LOVS relays (including auxiliary relays) will reset within 0.6seconds following the DG starting and ready for energizing 4kV Engineered Safety Features (ESF)buses within the 9.4 seconds. During surveillance testing of DG, it was determined that the reset timeof the LOVS relays (including auxiliary relays) exceeds its allowable time. As a result, in the actualplant installation, the LOVS relay channels actuate slower than the 0.6 second timing limit assumed inthe calculation, while DG start times are sufficiently faster than the 9.4 seconds. Hence, the systemhas always met the 10 second limit described in the Technical Specification SR 3.8.1.11. In order toensure that the 10 second DG start and the 4.16kV bus undervoltage relay logic reset time limit is notexceeded, station surveillance procedure (reference 6.3.9) for the DG has been revised to limit theallowable DG starting time from 9.4 seconds to 9.0 seconds. This allows an additional 400 ms for theLOVS relays to reset and close the DG breaker within the required 10 second time limit.

In order to expand the operating margin for the DG start time limit to its original allowance of 9.4seconds, the existing electro-mechanical LOV relays (Westinghouse relay type CV-2) will be replacedwith fast acting electronic LOV relays (Basler relay type BE1 -27).

1.3 Acceptance Criteria

a) The time delay of the BE1-27 relay should be selected such that the time delay of the entireLOVS channel up to and including 127F1-X3 and 127F1-X1/127F1-X2 is < 1.0 second asrequired by Tech. Spec. SR 3.3.7.3.b. This timing requirement also applies to the LOVS channelsassociated with relays 127F2, 127F3, and 127F4.

b) LOV scheme should not actuate on a voltage dip during load sequencing or the largest motorstarting.

SCE 26-426 Rev. 3 I Reference: SO I23-XXIV-7.15]

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I

CCN CONVERSION:CCN NO. CCN

I


Sheet 6 ofSubiect: TLU Calculation for Loss of Voltaae Relay at Class 1E 4.16 kV SwitchqearREV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE I

0 Joon kim Bill Lennartz

c) Since Class 1E motors (460 V and 4.16 kV) are capable of sustained satisfactory operation with avoltage dip to 75% of rated voltage for 15 seconds (reference 6.3.6), the LOV relay shouldoperate within 15 seconds at 75% of the rated motor voltage.

d) The minimum operating voltage of LOV relay should be greater than the voltage at Class 1 E 4.16kV buses corresponding to 75% of the nominal switchyard voltage of 230 kV per INPO SOER99-1 (reference 6.3.10)

1.4 Degree of Accuracy

The results of the TLU portion of this calculation are based on statistical methods in accordance withSCE Engineering Standard for Instrument Setpoint/Loop Accuracy Calculation Methodology, JS-123-103C (reference 6.3.7). A 95% probability at 95% confidence level as endorsed by RG 1.105(reference 6.2.1) is used. Uncertainties are calculated to the nearest 0.001%. Uncertainties andeffects which are less than 0.001% will be deemed negligible for purposes of this calculation (seeassumption 3.1.12).

The results of this calculation are valid under the assumptions specified in Section 3.

I-SCE 26-426 Rev. 3 (Reference: SO]123-XXIV-7.15]

E4C-015

E&TS DEPARTMENT

CALCULATION SHEETICCN NO.!PRELIM. CCN NO. Paae of

CCN CONVERSION:CCN NO. CCN 1

I Im N


~iihi~-t TI II (~nkiIRtinn fnr I n~ nf VnIt~n~ Rg~Iav ~mt (~IR~ IF A I~ kV uitr4~n~nr Sheet 7 of

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE I DATE

0 Joon kim Bill Lennartz U,

2 RESULTS/CONCLUSIONS/MARGIN

2.1 Results/Conclusions

2.1.1 The LOV relay settings (127F1, 2, 3, & 4 relays - Basler BE1-27).

Voltaae tar settinas (reference section 8.1

Table 2.1.1 (see Notes 1, 2, & 3 for definition of pickup and dropout and instrument)

Allowable (As-found) Values As-left ValuesOperating range (AVT = ± 0.673 %) (Max. setting Tol. = ± 0.5 V)

(TLU dead -0b935 +0.91V) (Max dead band = +0.52 V) (Max dead band = +0.52 V)

Item (Max dead band = +0.525 V) (Note 4)(Note 4)

Relay (V) Primary (V) Relay (V) Primary (V) Relay (V)

Max. Relay 106.485 3721.61 106.23 N/A 106.02Dropout (reset)

Max. Relay 105.96 3703.26 105.71 3694.52 105.5Pickup I

Nominal relay 105.525 3688.06 105.52 N/A 105.52Dropout (reset)Nominal relay 105.0 3669.71 105.0 3669.71 105.0

PickupMin. Relay 104.545 3653.81 104.81 N/A 105.02

Dropout (reset) IMin. Relay 104.02 3635.46 104.29 3644.89 104.5

Pickup I I I

Notes 1. Pickup: Relay output contact closes on undervoltage fault.2. Dropout (reset): Relay output contact opens on voltage recovery.3. Instrument to measure voltage should be Fluke 45 with a user selected reading rate

of medium and voltage range of 300 V or better.4 Since the resolution of M&TE (Fluke 45) is 0.01 V, the max. dead band of 0.52 V

was applied to As-Found and As-Left values for conservatism.

Timp dekinv -,Pttinn- trpfprenrpe sectinn R 91

Allowable (as-found) value Allowable (as-found) value for As-left value forItem for LOV relay only LOVS channel LOV relay only

(Note 2) (Notes 1 & 2) (Note 2)

Voltage change Voltage change from 115.5 v to 57 V

Maximum 0.83 seconds 0.81 seconds

Nominal 0.76 seconds Ž0.69 seconds and • 1.0 seconds 0.76 seconds

Minimum 0.69 seconds 0.71 seconds

Notes: 1. The LOVS channel consists of a LOV relay (127F1) and auxiliary relays 127F1-X3and 127F1-X1/127F1-X2 connected in series. The time delay of the entire LOVS

I-SCE 26-426 Rev. 3 lReference: S0123-XXIV-7.15]

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E&TS DEPARTMENT

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CCN CONVERSION:CCN NO. CCN I

I I


Sheet 8 ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchqear


0 Joon kim Bill Lennartz I <

channel up to and including the auxiliary relays is • 1.0 second. This timingrequirement also applies to the LOVS channels associated with relays 127F2,127F3, and 127F4.

2. Instrument to measure time should be Wilmar SC-1 01 with a user selected range ofmillisecond or better.

2.1.2 Surveillance Requirements of Tech. Spec. section 3.3.7.3 (refer to section 8.2.6):

Section Existing Recommended

Loss of Voltage Function (127F-1) Loss of Voltage Function (127F1, 2, 3, & 4):SR 3.3.7.3.b z 3594 V and 5 3796 V > 3644.89 V and < 3694.52 V

Time delay: Time delay:Ž0.75 seconds and ý 1.0 seconds Ž0.69 seconds and < 1.0 seconds

at 0 V (voltage change from 115.5 V to 57 V)

2.1.3 The LOV scheme meets the acceptance criteria specified in section 1.3 as follows:

a) The time dial of BE1 -27 relay was selected such that the time delay of the entire LOVSchannel up to and including the auxiliary relays is < 1.0 second as required by Tech.Spec. SR 3.3.7.3.b (refer to section 8.2.4).

b) LOV scheme will not actuate on a voltage dip during load sequencing or the largest motorstarting (refer to section 8.2.4).

c) The LOV scheme will operate within 3 seconds at 75% of the rated motor voltage toprotect Class 1 E motors from voltage dip (refer to section 8.2.4).

d) The minimum operating voltage of LOV relay is greater than the voltage at Class 1 E 4.16kV buses corresponding to 75% of the nominal switchyard voltage of 230 kV (refer tosection 8.1.6)

SCE 26-426 Rev. 3 {Reference: S0123-XXIV-7.15]

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO./PRELIM. CCN NO. Paoe of


Calc No. E4C-015Project or ECP: SONGS 2 & 3



Joon kim Bill Lennartz C. 3

2.2 Recommendations

2.2.1 Revise LOV System Surveillance Procedures (reference 6.3.8, and any others affected;Maintenance to identify.) to change the allowable as-found and as-left values of LOV relaysto the values shown below:

LOV relay IDs: 2(3)A0415-127F1, 2, 3, & 42(3)A0615-127F1, 2, 3, & 4

Voltage tag settins

Allowable (as-found) value (V) As-Left Values (V)(Nominal pickup = 105 V) (Nominal pickup = 105 V)

(Max. dead band = +0.52 V) (Max. dead band = +0.52 V)

Pickup Dropout Pickup Dropout

104.29 to 105.71 104.81 to 106.23 104.5 to105.5 105.02 to 106.02

Notes: 1. Pickup of BEl-27 relay: relay output contact closes on undervoltage fault.Dropout of BEl -27 relay: relay output contact opens on voltage recovery.

2. Instrument to measure the voltages should be Fluke 45 with a user selectedreading rate of medium and voltage range of 300 V or better.

3. Since the resolution of M&TE (Fluke 45) is 0.01 V, the max. dead band of 0.52V was applied to As-Found and As-Left values for conservatism

Time delay settings:_

Allowable (as-found) Allowable (as-found) As-left value for

Item value value for LOVS channel LOV relay onlyfor LOV relay only (Notes 1 & 2) (Note 2)

(Note 2) (Note 2)

Voltage change From 115.5 V to 57 V

Nominal time delay 0.76 V 0.76 Vsetting I0.69 seconds and

T0.69 seconds and 1 •1.0 seconds z0.71 seconds andTime delay range • 0.83 seconds < 0.81 seconds

(Note 2) (Note 2)

Notes:1. The LOVS channel consists of a LOV relay (1 27F1) and auxiliary relays 127F1 -X3

and 127F1-X1/127F1-X2 connected in series. The time delay of the entire LOVSchannel up to and including the auxiliary relays is 5 1.0 second. This timingrequirement also applies to the LOVS channels associated with relays 127F2,127F3, and 127F4.

2. Instrument to measure time should be Wilmar SC-1 01 with a user selected range ofmillisecond or better.

The implementation of this requirement will be tracked by AR 010400749-26

SCE 26-426 Rev. 3 1 Reference: SOl 23-XXIV-7.151

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICON NO./

PRELIM. CCN NO. Paae of



Sheet 10 ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchlear


0 Joon kim Bill Lennartz I

2.2.2 Revise Tech. Spec. SR 3.3.7.3.b as shown below:

Section Existing Recommended

Loss of Voltage Function (127F-1) Loss of Voltage Function (127F1, 2, 3, & 4):SR Ž 3554 V and < 3796 V > 3644.89 V and s 3694.52 V

3.3.7.3.bTime delay: Ž0.75 seconds and • 1.0 Time delay:seconds at 0 V 20.69 seconds and !5 1.0 second

(voltage change from 115.5 V to 57 V)

The implementation of this requirement will be tracked by PCN 577

2.2.3 Update the DBD

Revise DBD-S023-120 (Reference 6.3.4) to reflect the relay replacement.

The implementation of this requirement will be tracked by ECN A42882 to DBD-S023-120.

2.2.4 Determine the following drift values of BE1 -27 relay, based on relay test data (reference AR010400749);

" Voltage tap setting

" Time delay setting

The implementation of this requirement will be tracked by AR 010400749-38.

2.2.5 Increased Frequency of Relay Setpoint Checks

In order to validate assumptions 3.2.1 and 3.2.2, "As-Found" and "As-Left" data for the relayDropout and Pickup values must be taken within 6 months of operation at the new setpoints.All data taken shall be forwarded to engineering for analysis. If any allowable values areexceeded during this interval, Engineering will evaluate the assumption and calibrationmethodology. Otherwise, Engineering will determine from the data collected, if theassumptions and calibration methodology are correct and determine a new calibrationinterval for these relays.

The implementation of this requirement will be tracked by AR 010400749-37

2.2.6 Add bus voltages data for sequence time between 32.701 seconds to 33.501 seconds tobase calculation E4C-082.

The implementation of this requirement will be tracked by AR 010400749-39.

I.-5C E26-426 Rev. 3 IRelerence: SOl 123-XXIV-7.15]

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO.!PRELIM. CCN NO. Panp of



Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV SwitchgearSheet 11 of


0 Joon kim Bill Lennartz T

2.3 Margin

The margin is established by one primary source of conservatism included in this calculation. It is themiscellaneous allowance of ± 0.5% (section 3.1.10).

I-SCE 26-426 Rev. 3 i{Reference: SO 123-XX[V-7.15]

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0 Joon kim Bill Lennartz'-

INTENTIONALLY LEFT BLANK

*1-SCE 26-426 Rev. 3 { Reference: SO 123-XXIV-7.151

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REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE c

o oo kim Bill Lennartz IIr


*1~SCE 26-426 Rev. 3 1 Reference: SO 123-XXIV-7.15]

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Sheet 14 ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchqear

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0 Joon kim Bill Lennartz CCI

3 ASSUMPTIONS

3.1 Assumptions Which DO NOT Require Verification

3.1.1 BE1 -27 relay tap setting tolerance

3.1.1.1 Voltage tap setting tolerance

Basler stated in their e-mail (Attachment 9.4) that it is reasonably easy to set therelay within 0.25 V. Therefore, it was assumed that the pickup voltage tap settingtolerance is ±0.5 V.

3.1.1.2 Time delay tap setting tolerance

Inverse time delay of the BE1 -27 relay is adjustable from 01 to 99 in increment of 01.Each increment is approximately 50 ms (Attachment 9.6). Therefore, it was assumedthat time delay tap setting tolerance is ± 50 ms

3.1.2 Calibration temperature allowance (Te)

Since the Class 1 E SWGR rooms are environmentally controlled with normal & emergencychillers, calibration temperature is assumed to be between 55°F and 82 0F (Section 4.3normal environmental conditions, not calibrated during a LOCA). This temperature bandincludes the range of temperatures from summer to winter conditions.

Since the operating temperature range of relay BE1 -27 is -400C (-400F) to 70°C(1580F) andtemperature effect is not specified by manufacturer, it is assumed that temperature effect isincluded in the relay accuracy.

3.1.3 Humidity Effect

Since the humidity effect is not specified by the manufacturer, it is assumed to be included inthe temperature effect, per JS-1 23-103C (reference 6.3.7).

3.1.4 Pressure Effect

Since the LOV relay loops consist entirely of electrical/ electronic components, the errorinduced by normal environmental pressure changes is negligible and is therefore notconsidered in this calculation. There are no additional accident pressure considerationsassociated with this environment (see Section 4.3).

a-SCE 26-426 Rev. 3 1 Reference: SO] 23-XXIV-7.15]

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Subject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchgear Sheet 15 of

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3.1.5 Radiation Effect (Re)

The ESF SWGR room is a low radiation area during both accident and normal conditions(mild environment; section 4.3). Therefore, the error induced by normal radiation effects tothe LOV Relays and Potential Transformers is assumed to be negligible.

3.1.6 Seismic Effect (Se)

The LOV Relays are seismically qualified devices. Therefore, the Seismic Effect for the LOVRelays is considered negligible.

3.1.7 Power supply effects (PSe)

Since the power supply effects on the LOV relay (BE1 -27) is not specified by themanufacturer, it is assumed to be included in the relay accuracy.

3.1.8 Measuring and Test Equipment

Test equipment with an accuracy equal to or better than a Fluke 45 multimeter with a userselected reading rate of medium and voltage range of 300 V and Wilmar SC-101 timer with auser selected range of milliseconds are to be used for calibration of the LOV relays (refer tosections 4.4 & 4.5 for detailed specifications).

3.1.9 Potential Transformer Accuracy

The same potential transformers are used for degraded grid voltage (DGV) relays and LOVrelays. The potential transformer accuracy was calculated for DGV relays in calculation E4C-130 (reference 6.1.2). Therefore, the potential transformer accuracy for LOV relay calculationis assumed to be the same as the PT accuracy calculated in calculation E4C-1 30.

3.1.10 Miscellaneous Allowance (Ma)

Per JS-123-103C (Reference 6.3.7), the standard miscellaneous allowance of ±0.5% of spanis generally assumed. The standard does allow the value to be changed "at the Engineer'sdiscretion". The typical value is utilized in this calculation.

3.1.11 LOV relay (Basler BE1 -27) dropout (reset) accuracy

The instruction manual (reference 6.5.1) for BEl-27 relay indicates that the maximumdropout (reset) accuracy is +2% of the pickup voltage, but manufacturer states that typicaldropout accuracy of BE1-27 relay is within 0.1% of the pickup voltage (Attachment 9.5).

Therefore, it was assumed that the maximum dropout accuracy of the BE1 -27 relay is +0.5%(0.525 V for 105 V voltage tap setting).

SCE 26-426 Rev. 3 IReference: SO] 23-XXIV-7.15]

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ICCN NO.!PRELIM. CCN NO. PaOe of


Project or ECP: SONGS 2 & 3 Calc No. E4M-015

Sheet 16 ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear


0 Joon kim Bill Lennartz I .I

3.1.12 Negligible Effects and Values

Uncertainties and effects which are determined to be less than 0.001% (one thousandth ofone percent) will be considered negligible and eliminated from consideration.

3.1.13 Environmental Conditions of the 2(3)A04 and 2(3)A06 Cubicles

2(3)A04 and 2(3)A06 Cubicles are located in the Class 1E SWGR rooms, which areenvironmentally controlled with normal & emergency chillers. The relays are mounted insideof the cubicles and will be at a higher temperature than ambient room temperature, but it isreasonable to assume that the temperature excursions with the cubicle are similar to those inthe room. Therefore, the difference between the highest and lowest temperaturesexperienced by the relays will be the same as the difference between the highest and lowestroom temperatures.

3.2 Assumptions Requiring Verification

3.2.1 LOV relay (Basler BE1 -27) voltage tap drift (D)

Voltage tap setting drift allowance for the 127F1, 2, 3, & 4 (BE1-27) relays is assumed tobe equal to the accuracy of the relay (± 0.5 V), since the manufacturer drift value is notavailable. This assumption will be verified by testing (reference section 2.2.5).

Note: The drift allowance was assumed to be ± 0.5 V because the Basler e-mail, dated3/14/06, states "The test report also illustrates that pickup accuracy is typicallybetter than 0.3% ... " (Attachment 9.4).

3.2.2 LOV relay (Basler BE1 -27) time delay drift (D)

Time delay tap setting drift allowance for the 127F1, 2, 3, & 4 (BE1 -27) relays is assumed tobe equal to the repeatability of the relay (± 50 ms, refer to section 4.2), since themanufacturer drift value is not available. This assumption will be verified by testing (referencesection 2.2.5).

SCE26-426 Rev. 3 1 Reference: SO0123-XXPV-7,15]

E4C-015

E&TS DEPARTMENT

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* ICCN NO./PRELIM. CCN NO. Paoe of



Subject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV SwitchgearSheet 17 of

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Joon kim Bili Lennartz a "J


4-SCE 26-426 Rev. 3 IReference: SOI23-XXIV-7.15]

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET



Project or ECP: SONGS 2 & 3 Calc No. E4-01 5Sheet 18 of

Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear

REV ORIGINATOR DATE--[ IRE - DATE REV ORIGIATO DAE IRE DATE cJ

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C114 DESIGN INPUTS

4.1 General

The SONGS Units 2&3 Safety-Related 4 kV System consists of four 4 kV Buses. Buses 2A04 and2A06 are the Unit 2 Train A and Train B Buses, respectively, while 3AQ4 and 3A06 are thecorresponding buses for Unit 3.

Bus 2A04 contains 21 separate cubicles numbered from 2A0401 to 2A0421. Bus 2A06 contains 20separate cubicles numbered from 2A0601 to 2A0620. Bus 3A04 contains 20 separate cubiclesnumbered from 3A0401 to 3A0420. Bus 3A06 contains 19 separate cubicles numbered from 3A0601to 3A0619. The cubicles containing the LOV relays are given in the table below.

LocationFunction

Bus 2A04 Bus 2A06 Bus 3A04 Bus 3A06

Cubicle 15 15 15 15

Undervoltage Relay ID 2A0415 2A0615 3A0415 3A0615Numbers 127F1, 2,3,4 127F1,2,3,4 127F1,2,3,4 127F1, 2,3,4

4.2 BE1 -27 LOV relay (references 6.5.1 & 6.5.2 and Attachments 9.4, 9.5, & 9.6)

Device No:MFR:Model No:Tap Range:Temperature range:

Burden (voltage sensing):Power supplyPickup voltage accuracy:Dropout voltage accuracy:Inverse time accuracy:

127F1, 127F2, 127F3, and 127F4BaslerA3EC1JAOBOF55-160 V-400C to +700C - operating-65°C to +1000C - storageless than 1 VA125 V dc, 4.4 watts±2% or ±0.5 volts of the pickup setting, whichever is greater.+2% of the pickupRepeatability within ±2% or 50 ms (whichever is greater) for anycombination of time dial and pickup setting.

Note: The inverse time curves were generated with prefaultvoltages at 10% greater than pickup setting. For prefaultvoltages that are greater than 10% in difference from thepickup setting, the timing accuracy is ± 10% or 100 ms(whichever is greater).

5 years2 cycles (contact opening time on recovery of voltage)

Calibration interval:Reset time:

I-SCE 26-426 Rcv. 3 Reference: SO[ 23-XXIV-7.151

E4C-015

E&TS DEPARTMENT

CALCULATION SHEETý

ICON NO./ IPRELIM. CCN NO. Pane of

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Sheet 19 ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchgear

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE ccII I I o-

Joon kim Bill Lennartz I -a:z

4.3 Environmental Condition Data

FORM 4: ENVIRONMENTAL CONDITIONS DATA SHEETAREA: CB Area B5 (ESF SWGR room) Mild Environment (References 6.1.1 & 6.3.5)

Parameter Data [ Reference

Normal Temperature 55'F 6.1.1Minimum, OF

Normal Temperature 81.7 0F 6.1.1Maximum, OF

Normal RadiationVal gammatRads< 1.0 E4 Rads 6.3.5Value, gamma Rads

Normal Pressure 0 6.3.5Minimum, psig 0_psig_6_3.5

Normal Pressure 0 psig 6.3.5Maximum, psig

Accident Temperature 95°F 6.3.5Maximum, OF

Accident RadiationAcietRdain< 1.0 E4 Rads 6.3.5Value, gamma Rads

Accident RelativeHumidity Range % RH

Accident Pressure 0 psig 6.3.5Maximum, psig I

4.4 Fluke 45 multimeter (M&TE) used for Setpoint Measurement and Calibration (Attachment 9.1)

Full scale:Accuracy:Resolution:

Note:

300 V AC±0.2% of reading + 10 digits0.01 V

Since the resolution at medium sampling rate on 300 V range is 10 mV, the referenceaccuracy is ±(0.2% of reading + 1OxO.01V) = ±(0.2% + 0.1 V)

Temperature coefficient: < 0.1 times the applicable accuracy specification per degree C for 00C to18°C (32°F to 64.4°F) and 28°C to 500C (82.40F to 1220 F)

I-SCE 26-426 Rev. 3 IReference: SO 123-XX IV-7.15]

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4.5 Wilmar SC-1 01 Timer (M&TE) used for Setpoint Measurement and Calibration (Attachment 9.2)

Manufacturer: WilmarType: SC-1 01Input power: 120 V ± 10%, 50/60 Hertz, 0.1 amp.Operation Modes: Dry contact, NO or NC

DC potential, OFF or ONAC potential, OFF or ON

Temperature range: 00C to 500C

Range: Cycles - 0-99999Milliseconds - 0-99999Seconds - 0-999.99

Accuracy (Notes): Dry contact - ±1 millisecondDC voltage - ±1 millisecondAC voltage - ±1/4 cycle

Notes

(1) The "clock" and "read-out" tolerance listed below must be added in computing the overallaccuracy:

a. The internal clock tolerance, over a temperature range of -200C to + 500C, is ±0.06%b. Above accuracies are ±1 less significant digit.

(2) The AC voltage accuracy given is the worst case at low voltages and improves with highvoltage.

4.6 Potential Transformer (PT) data (references 6.1.2, 6.4.1, & 6.5.3)

MFR: General ElectricModel: JVM-3PT ratio: 35:1Ratio correction factor: 0.99856Calculated random error: ± 0.05%Calculated bias: +0.012% / -0.029%

Note: Refer to calculation E4C-1 30 (reference 6.1.2) for the calculations of ratio correction factor

(RCF), random error, & bias

4.7 Technical Specifications Allowable Values

SR 3.3.7.3.b of the Technical Specification (Reference 6.3.2) gives the following Allowable Values:

Loss of Voltage Function _> 3554 V and -< 3796 V,Time delay: _> 0.75 seconds and < 1.0 seconds at 0 V

SCE 26-426 Rev. 3 I Reference: S01 23-XXIV-7.151

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0 Joan kimn Bill Lennartzf

4.8 Voltage requirements for motors (reference 6.3.6)

SONGS Units 2&3 QC II motors have been procured to operate at ±10% rated voltage continuouslyand are able to withstand voltage drops as low as 75% of rated voltage for up to 15 seconds.

Item 4.16 kV motor 460 V motor

Continuous 4160 V ±+10% 460 V ±10%

15 seconds 3120 V (75% of 4160 V) 345 V (75% of 460 V)

4.9 Time required for voltage recovery during load sequencing

Calculation E4C-082 (reference 6.1.4) indicates the following;

(1) If the preferred offsite power source supplies power to the Class 1 E 4.16 kV bus, the minimumvoltage dip at the Class 1E 4.16 kV bus during load sequencing is higher than the LOV relaypickup voltage of 3675 V (105 V x 35).

(2) If the emergency diesel generator supplies power to the Class 1 E 4.16 kV bus, the minimum busvoltage dip at the Class 1 E4.16 kV bus during load sequencing is lower than 3675 V. Basecalculation E4C-082 does not include data for the voltage recovery time during load sequencing.

However, CCN #62 to E4C-082, which was issued to support PCN 574 to change the dieselgenerator AVR setting from 4460 ± 80 V to 4360 ± 80 V, includes data for the bus voltagerecovery time during load sequencing. CCN #62 to E4C-082 was performed for the worst StudyCase II.1B1-OR1, using the new lower AVR setting of 4280 V (4360 V - 80 V). The longest busvoltage recovery time is shown in the following table:

Sequence Time (sec.) Bus voltage (%) Sequence Time (sec.)(See note below)

Bus voltage (%)

32.401 102.50 32.701

32.501 82.80 32.801

32.601 84.23 32.901

33.001

33.101

33.201

33.301

33.401

33.501

84.07

85.17

86.59

88.21

90.48

94.14

96.73

98.49

100.09

Note: Data for sequence time between 32.701 seconds to 33.501 seconds was obtained fromthe ETAP data base for CCN #62 to E4C-082. In order to add the bus voltage data to basecalculation E4C-082, AR 010400749-39 was created (refer to section 2.2.6).

4-SCE 26-426 Rev. 3 (Reference: S0123-XXIV-7.151

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REV ORIGINATOR DATE IRE DATE REV I ORIGINATOR DATE IRE DATE



a-SCE 26-426 Rev. 3 { Reference: SO 123-XXIV-7.151

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CALCULATION SHEET CcN CONVERSION:CCN NO. CCN

Project or ECP: SONGS 2 & 3 Calc No. E4C-011.5



0 Joon kim Bill Lennartz w <

5. METHODOLOGY

5.1 Overview:

This methodology is consistent with the requirements of Category I setpoints specified in SONGSStandard JS-123-103C (Reference 6.3.7) for safety system setpoints. The loop of LOV circuitconsists of only the potential transformer (primary element) and LOV relay. The only error attributedto the primary element is the Primary Element Allowance (PEA).

The adequacy of the existing nominal pickup setpoint (105 V) of the LOV relay will be evaluated,considering BE1 -27 relay TLU and the following requirements of the LOV relay scheme:

a) The time delay of the BE1 -27 relay should be selected such that the time delay of the entireLOVS channel up to and including the associated auxiliary relays is s 1.0 second as required byTech. Spec. SR 3.3.7.3.b.

b) LOV scheme should not actuate on a voltage dip during load sequencing or the largest motorstarting.

c) Since Class 1 E motors (460 V and 4.16 kV) are capable of sustained satisfactory operation with avoltage dip to 75% of rated voltage for 15 seconds (reference 4.8), the LOV relay should operatewithin 15 seconds at 75% of the rated motor voltage.

d) The minimum operating voltage of LOV relay should be greater than the voltage at Class 1 E 4.16kV buses corresponding to 75% of the nominal switchyard voltage of 230 kV per INPO SOER99-1.

5.2 Calculation of primary element (PT) allowance (PEA)

Since the same potential transformers are used for degraded grid voltage (DGV) relays and LOVrelays, the calculated PT accuracy in calculation E4C-1 30 (reference 6.1.2) for DGV relays will beused in this calculation (reference sections 3.1.9 and 4.6).

The calculated PEA = PEA random + PEA bias

5.3 Calculation of LOV relay total loop uncertainty (TLU)

5.3.1 The following uncertainties are considered for inclusion per SONGS Standard JS-123-103C(Reference 6.3.7):

a. PEA as outlined above (applicable only for pickup voltage tap setting).b. Device Tolerances (LOV Relay only)

* Drift allowance (D)* Power supply allowance (PSe)* Temperature allowance (Te - normal & accident)* Seismic effects (Se)

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0 Joon kim Bill Lennartzuo Len J4t

* Radiation effects (Re)

c. M&TE Tolerance (M&TE)

The following uncertainties will be considered for the M&TE tolerance:

* M&TE accuracy (MTEA)" Readability (R)

Readability is ± least significant digit for digital M&TE* M&TE temperature effect (MTETE)* M&TE reference standard (MTERs)

MTERS is ±25% of M&TE accuracy per JS-123-103C (reference 6.3.7).

These uncertainties will be combined utilizing the Square Root of the Sum of theSquares Method.

d. Setting Tolerance (ST)Note: Used in TLU calculation in lieu of Accuracy per section 6.2 of JS-123-103C..

e. Miscellaneous Allowance (Ma)

5.3.2 Combination of TLU Uncertainties

The Square Root of the Sum of the Squares Method as defined in JS-123-103C (reference6.3.7) is utilized to combine the independent random uncertainties in the determination of theTLU. Then, the applicable biases (PEAbias in this case) are added. Therefore:

For pickup voltage tap:

TLU =+VTe2 + D2 + PSe2 + Se2 + Re2+MTE2 + ST2 + Ma2 + PEA .. 2 + PEAbi.

For time delay tap:

TLU Te 2 + D 2 + PSe' + Se2 + Re-2 +MTE 2 +ST2 + Ma 2

5.4 Calculation of LOV relay allowable value tolerance (AVT)

The allowable value tolerance (AVT) will be calculated per JS-123-103C, Section 4.4 from theequation:

AVT = ±(D2 + ST2 + R2)1

Where D is the drift of the LOV relay, ST is the setting tolerance of the LOV relay, and R is thereadability of the test equipment.

SCE 26.426 Rev. 3 1Reference: SO123-XXIV-7.15]

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5,5 LOV relay (BE1 -27) pickup (PU) and dropout (DO) / reset setpoint.

5.5.1 LOV relay nominal pickup setpoint

Adequacy of the nominal pickup setpoint (105 V) of the existing LOV relay (CV-2) will beevaluated, considering the TLU and the requirements of the LOV relay scheme described insection 5.1

5.5.2 LOV relay dropout (reset) voltage

No calculation for dropout (reset) voltage of BE1 -27 relay is required because factory setdropout (reset) voltage is always higher than (up to 100.5%) the pickup voltage (referencesection 3.1.11 and Attachment 9.5).

5,6 Calculation of LOV relay PU As-Found/As-Left Acceptance Bands

5.6.1 Calculation of LOV relay As-Found acceptance band

The As-Found pickup acceptance band:

(Nominal pickup setpoint) x (1 ± Allowable value tolerance).

The As-Found dropout acceptance band:

(As-Found values) x 1.005.

5.6.2 Calculation of LOV relay As-Left acceptance band

The As-Left acceptance band will be the pickup setpoint ±ST (setting tolerance)

9-SCE 26-426 Rev. 3 (Reference: SO123-XXIV-7.15]

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a-SCE 26-426 Rev. 3 { Rcference: SO 123-XXIV-7.151

E4C-015

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LALCULATION Hl -ET.- CCN CONVERSION:CCN NO. CCN



REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE I ,RE DATE T

o Joon kim Bill Lennartz I zI0

6. REFERENCES

6.1 SONGS Calculations

6.1.1 M-0073-061 CCN 14 - Aux. BLDG control Area - 50' ESF SWGR Room Heat Local CSSpec.S023-410-6

6.1.2 E4C-1 30 - TLU Calc for Undervoltage Relay Circuits at Class 1 E 4 KV Switchgear

6.1.3 E4C-090 - Auxiliary System Voltage Regulation

6.1.4 E4C-082 - System Dynamic Voltages During DBA

6.1.5 J-ZZZ-069 - Out-Of-Tolerance Notification Program (OTN)

6.2 Industry Publication and Standards

6.2.1 NRC Regulatory Guide 1.105 Revision 3 Setpoints For Safety-Related Instrumentation

6.2.2 ANSI/IEEE C57.13-1993 - IEEE Standard Requirement for Instrument Transformers.

6.3 SONGS Documents and Procedures

6.3.1 NCDBMEL - Nuclear Consolidated Database Master Equipment List.

6.3.2 SONGS 2 & 3 Technical Specifications (See TS Section 3.3.7.3)

6.3.3 SONGS 2 & 3 UFSAR (Section 8.3.1.1.3.13)

6.3.4 DBD-S023-120 - 6.9 KV, 4.16 KV & 480 V Electrical Systems.

6.3.5 DBD-S023-TR-EQ - Environmental Qualification Topical Report

6.3.6 System Specification S023-403-12 - Diesel Driven Electrical Generating sets.

6.3.7 SCE Standard JS-1 23-103C - Instrument Setpoint/Loop Accuracy Calculation Methodology

6.3.8 Surveillance Test Procedures for Loss of Voltage (LOVS), Degraded Voltage (SDVS,DGVSS) and Sequencing Relays and Circuits

S02(3)-II -11.1A-2 - Surveillance .Requirement Unit 2 (3) ESF Train A

S02(3)-II -11.1 B-2 - Surveillance .Requirement Unit 2 (3) ESF Train B

6.3.9 S023-3-3.23.1 - Diesel Generator refueling Interval tests.

6.3.10 INPO SOER 99-1 - Loss of Grid

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Sheet 28 of

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR I DATE IRE DATE 1Joon kim Bill Lennartz U

I . I+

6.4 Drawings.

6.4.1 Elementary Drawings

Train Unit 2 Unit 3

DWG No. DWG No.

A 30192 4.16 kV bus 2A04 metering 32192 4.16 kV bus 3A04 metering(3 of 3) (3 of 3)

A 30220 sh 1 4.16 kV bus 2A04 metering 32220 sh 1 4.16 kV bus 3A04 metering

A 30220 sh 2 4.16 kV 2AO4 degraded 32220 sh 2 4.16 kV 3AO4 degradedvoltage detection voltage detection

A 30299 4.16 kV bus 2A04 metering 32299 4.16 kV bus 3A04 metering(2 of 3) (2 of 3)

B 30230 sh 1 4.16 kV bus 2A06 metering 32230 sh 1 4.16 kV bus 3A06 metering

B 30230 sh 2 4.16 kV 2A06 degraded 32230 sh 2 4.16 kV 3A06 degradedvoltage detection voltage detection

B 30300 4.16 kV bus 2A06 metering 32300 4.16 kV bus 3A06 metering(2 of 3) (2 of 3)

B 30301 4.16 kV bus 2A06 metering 32301 4.16 kV bus 3A06 metering(3 of 3) (3 of 3)

6.5 Vendor documents

6.5.1 V/P 1814-AF316-M0005 - Instruction Manual for undervoltage relay BE1-27

6.5.2 V/P 1814-AF316-M0007 - Basler Relay Application for Relay BE1-27/59

6.5.3 V/P S023-302-2- 85 - B/M for Class 1E 4.16 kV SWGR 2A06

SCE 26-426 Rev. 3 iReference: S0123-XXIV-7.151

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7. NOMENCLATURE

AR Action Request

ABB Asea Brown Boveri

CCN Calculation Change Notice

D Drift

DAQ Data Acquisition System

Dead Band Voltage difference between the dropout (reset) and pickup

DGV Degraded Grid Voltage

DGVSS Degraded Grid Voltage Signal with SIAS

DO Dropout

EC Editorial Correction

EDG Emergency Diesel Generator

ESF Engineered Safety Feature

kV Kilovolt

LOV Loss of Voltage

LOVS Loss of Voltage Signal

LSB Least Significant Bit

Ma Miscellaneous Allowance

MFR Manufacturer

M&TE Measuringe & Test Equipment

ms Milliseconds

N/A Not Available or Not Applicable

NSP Nominal Setpoint (SP)

NRC Nuclear Regulatory Commission

SCE 26-426 Rev. 3 J Reference: SO 123-XXIV-7.15)4-

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Project or ECP: SONGS 2 & 3 Calc No. E40-015


REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE c0Bo Joon kim Bill Lennartz

PEA Primary Element Allowance

PSe Power Supply Allowance

PT Potential TransformerNoltage Transformer

PU Pickup

R Readability

RAT Reserve Auxiliary Transformer

Re Radiation Effects

Se Seismic Effects

SIAS Safety Injection Actuation Signal

SP Setpoint

SRSS Square Root Sum of the Squares

ST Setting Tolerance

SWGR Switchgear

SWYD Switchyard

TCN Technical Change Notice

Te Temperature allowance

Tol. Tolerance

TLU Total Loop Uncertainty

TS Technical Specifications

UFSAR Updated Final Safety Analysis Report

SCE 26-426 Rev. 3 I Reference: SO 123-XXIV-7.151

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Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear Sheet 31 - of

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE0 l0on im BilLnat I

8 CALCULATIONS

8.1 Calculation total loop uncertainty (TLU) of LOV relay voltage tap

8.1.1 Individual Uncertainties associated with LOV relay voltage tap TLU

8.1.1.1 Primary Element Allowance (PEA) (reference sections 3.1.9 & 4.6)

PEArandom = ±0.05% (SRSS)PEAbiaS = +0.012 % / - 0.029% (Bias)

8.1.1.2 Relay tolerances

8.1.1.2.1 Drift allowance (D)

Per section 3.2.1 (assumption) the drift allowance for the LOV relay is:

D = ±0.5 VD = ± (0.5 V / 105 V) x 100% = ±0.476% for the pickup setting of 105 V

8.1.1.2.2 Power supply allowance (PSe)

Per Assumption 3.1.7 the power supply effect is included in the relayaccuracy. Therefore, PSe = 0

8.1.1.2.3 Temperature allowance (Te) (normal & accident)

Per Assumption 3.1.2 the temperature effect is included in the relayaccuracy. Therefore, Te = 0

8.1.1.2.4 Seismic effect (Se)

Per Assumption 3.1.6 Seismic effect is negligible.Therefore, Se = 0

8.1.1.2.5 Radiation effect (Re)

Per Assumption 3.1.5 the Radiation effect is negligible.Therefore, Re = 0

SCE 26-426 Rcv- 3 {Reference: SO 123-XXIV-7.151

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UALUULA[IUN 51H":I CCN CONVERSION:CCN NO. CCN




0 doon kim Bill Lennartz LJrrS.Ž

8.1.1.3 M&TE Tolerance (MTE)

(reference sections 3.1.2, 3.1.8, 4.3, 4.4 & 5.3 and Attachment 9.1)

8.1.1.3.1 M&TE accuracy (MTEA)

Fluke 45 multimeter random accuracy is + 0.2% of reading + 10 digits.

Since the resolution at medium sampling rate on the 300 V range is 10 mV(Attachmment 9.1), the reference accuracy is ±(0.2% +lOx0.01V) = ±(0.2% +0.1V).

If the device read near 105 V, (0.1 V/ 105 V) x 100 = 0.095%.

MTEA = ±(O.2% + 0.095%) ±0.295%.

8.1.1.3.2 Readability (R) (least significant digit for digital M&TE)

The resolution at medium sampling rate on the 300 V range is 10 mV.

If the relay is set near 105 V,

R = ±(10 mV / 105 V) x 100 = ±0.0095%.

8.1.1.3.3 M&TE temperature effect (MTETe)

Per section 4.4 the temperature coefficient of Fluke 45 voltmeter is less than0.1 times the applicable accuracy of ±0.295% per degree C for 00 C to 180C(32 0 F to 64.4 0 F) and 28°C to 500C (82.40 F to 1220 F). The temperaturerange at SWGR room is 550 F to 81.7 0F.

Temperature range to be considered:

550F (12.780C) to 64.40 F (18.00°C).

MTETC = (0.1/degree C) x (18-12.78)°C x ±0.295% = _-0.154%

8.1.1.3.4 M&TE reference standards (MTERS)

The reference standard accuracy is assumed to be 25% of the M&TEaccuracy per JS-123-103C (Reference 6.3.7). Therefore:

MTERS = 0.25 x (± 0.295) = ±0.074 %

SCE 26-426 Rev. 3 I Reference: SO123-XXIV-7.151

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8.1.1.3.5 Total M&TE tolerance

The total M&TE allowance is the SRSS of the four components determinedabove. That is:

MTE + (MTEA2+ R' + MTETe2 + MTERs 2)1/2

MTE = + (0.2952 + 0.00952 +0.1542+ 0.0742)1/2

MTE 0.341%

8.1.1.4 Setting tolerance (ST)

Per assumption 3.1.1 the setting tolerance is ±0.5 Vac, therefore:

ST = (±0.5 V / 105 V) x 100 = ±0.476%

8.1.1.5 Miscellaneous allowance (Ma)

Per Assumption 3.1.10 the miscellaneous allowance is:

Ma = +0.5 %

4-SCE 26-426 Rev. 3 lReference: S0123-XXIV-7.15]

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8.1.2 Combination of uncertainties

Combining the uncertainties per the equation from Section 5.3.2, the TLU is:

TLU=+ e2+D2 +PSe2+Se2+Re2+MTE2+ST2 +Ma2+PEA. 2 +PEA

"PEAbias+PEAbiasPEAr.rdomTeDPSeSeReMTESTMa

= -0.029%= +0.012 %= ±0.05%= N/A= ±0.476%= N/A= N/A= N/A= ±0.341%= ±0.476%= ±0.5%

+TLU = +( 0 +0.476 +02 + 02 + 02 + 0.3412 + 0.4762 + 0.52 + 0.052) + 0.012 % = +0.918%- TLU = -( 02 + 0.4762 + 02 + 02 + 02 + 0.3412 + 0.4762 + 0.51 + 0.052)1 - 0.029% = -0.935%

TLU = +0.918% / - 0.935%

8.1.3 Allowable value tolerance (AVT) of LOV relay (BE1 -27)(reference section 5.4)

AVT =*( D2+ ST2+R2)112

ST = Setting tolerance:D = Drift:R = Readability of M&TE:

±0.476%.±0.476%±0.0095%

Therefore, the tolerance for allowable value is:

AVT = ±(0.4762 + 0.4762 + 0.00952)1/2% = ±0.673%

6~SCE 26-426 Rev. 3 1 Reference: SO I 23-XXIV-7.151

E4C-015

E&TS DEPARTMENT

CALCULATION SHEETICCN NO.! NOJPRELIM. CCN NO. Pane of


Calc No. E4C-01 5Project or ECP: SONGS 2 & 3



0 Joon kim Bill Lennartz cr

8.1.4 As-found (allowable) values of LOV relay (reference sect.s 3.1.11, 4.6, 5.1, 5.5, 5.6,and 8.1.3)

Relay pickup setpoint:Allowable value tolerance:Max. dropout accuracy:

PT ratio:PT correction factor:

105 V± 0.673%+ 0.52 V (Since the resolution of M&TE (Fluke 45) is 0.01 V, themax. dead band of 0.52 V was applied to As-Found values forconservatism.)350.99856

Pickup voltage:

Max. allowable voltage at relayMax. allowable voltage at bus

Nominal allowable voltage at relayNominal allowable voltage at bus

Min. allowable voltage at relayMin. allowable voltage at bus

= 105 V x (1 + 0.00673) = 105.71 V= 105.71 V x 35 x 0.99856 = 3694.52 V

= 105 V= 105 V x 35 x 0.99856 = 3669.71 V

= 105 V x (1- 0.00673) = 104.29 V= 104.29 V x 35 x 0.99856 = 3644.89 V

= 105.71 V + 0.52 V = 106.23 V= 105 V + 0.52 V = 105.52 V= 104.29V + 0.52 V = 104.81 V

Dropout (reset) voltage:

Max. allowable voltage at relayNominal allowable voltage at relayMin. allowable voltage at relay

8.1.5 As-left values of BE1 -27 relay (reference sections 3.1.11, 5.5, and 5.6)

Relay pickup setpoint:Setting tolerance:Max. dropout accuracy:

Pickup voltage:

105 V±0.5+ 0.52 V (Since the resolution of M&TE (Fluke 45) is 0.01 V, themax. dead band of 0.52 V was applied to As-Left values forconservatism.)


Dropout (reset) voltage:

=105V + 0.5 V =105.5 V= 105 V=105V -0.5V=104.5V

= 105.5 V + 0.52 V = 106.02 V= 105 V + 0.52 V = 105.52 V= 104.5V + 0.52 V = 105.02 V


SCE 26-426 Rev. 3 1 Reference: SOl 23-XXIV-7.15]

E4C-015

E&TS DEPARTMENTICCN NO.!PRELIM. CCN NO. Panpe of

ALk.ULATIUN 5Hhh] CON CONVERSION:CON NO. CCN




0 Joon kim Bill Lennartz [

8.1.6 Operating voltage range of BEl-27 relay (reference sect.s 3.1.11, 4.6, 5.1, 5.3, & 8.1.2)

Relay pickup setpoint: 105 VTLU of BEl-27 relay pickup: + 0.918%! - 0.935%Max. dropout accuracy: + 0.525 VPT ratio: 35PT correction factor: 0.99856

Pickup voltage:

Max. voltage at relay = 105 V x (1 + 0.00918) = 105.96 VMax. voltage at bus = 105.96 V x 35 x 0.99856 = 3703.26 V

Nominal voltage at relay = 105 VNominal voltage at bus = 105 V x 35 x 0.99856 3669.71 V

Min. voltage at relay = 105 V x (1- 0.00935) = 104.02 V

Min. voltage at bus = 104.02 V x 35 x 0.99856 = 3635.46 V

Dropout (reset) voltage

Max. voltage at relay = 105.96 V + 0.525 V = 106.485 VMax. voltage at bus = 106.485 V x 35 x 0.99856 = 3721.61 V

Nominal voltage at relay = 105 V + 0.525 V = 105.525 VNominal voltage at bus = 105.525 V x 35 x 0.99856 = 3688.06 V

Min. voltage at relay = 104.02 + 0.525 V = 104.545 VMin. voltage at bus = 104.545 V x 35 x 0.99856 = 3653.81 V

When the switchyard voltage is degraded to 75% of 230 KV, voltage at Class 1 E 4.16 KV bus

could be approximately:

(0.75 x 230000 V) / (RAT turns ratio) = (172500 V) / (230 x .975) / 4.36 = 3353.8 V

The 3353.8 V at Class 1E 4.16 kV buses is less than the minimum dropout voltage (3635.46V) of the LOV relay (BE1-27) and the LOV relay would trip the Class 1 E 4.16 KV bus duringswitchyard voltage degradation. Therefore, the nominal pickup setting of 105 V is acceptable.

SCE 26-426 Rev. 3 { Reference: S01 23-XXI'/-7.15]

E4C-015

E&TS DEPARTMENTICCN NO./ J


CALCULATION SHEET CCN CONVERSION:I CCN NO. CCN



REV ORIGINATOR DATE IRE DATE REV j ORIGINATOR DATE IRE DATE

0 Joon kim Bill Lennartz I AE

8.2 TLU of LOV relay time delay tap

8.2.1 Individual Uncertainties associated with LOV relay time delay tap TLU

8.2.1.1 Relay tolerances

8.2.1.1.1 Drift allowance (D)

Per section 3.2.2 the drift allowance for the LOV relay time delay is:

D =t ±50 ms

If the timer measures approximately 0.77 second, then 0.05 second is

equivalent to 6.50%. Therefore, D = + 6.5%

8.2.1.1.2 Power supply allowance (PSe)

Per Assumption 3.1.7 the power supply effect is included in the relayaccuracy. Therefore, PSe = 0

8.2.1.1.3 Temperature allowance (Te) (normal & accident)

Per Assumption 3.1.2 the temperature effect is included in the relayaccuracy. Therefore, Te = 0

8.2.1.1.4 Seismic effect (Se)

Per Assumption 3.1.6 Seismic effect is negligible.Therefore, Se = 0

8.2.1.1.5 Radiation effect (Re)

Per Assumption 3.1.5 the Radiation effect is negligible.Therefore, Re = 0

SCE 26-426 Rev. 3 1 Reference: SO I 23-XXIV-7.15]

E4C-015

E&TS DEPARTMENTICCN NO.!


CALCULATION SHEET CCN CONVERSION:

CCN NO. CCN



REV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE DATE ,

0 Joon kimn Bill Lennartz I8.2. .2 &TE olernce MTE

8.2.1.2 M&TE Tolerance (MTE)(reference sections 4.3, 4.5, 5.3 and Attachment 9.2)

8.2.1.2.1 M&TE accuracy (MTEA)

Wilmar timer SC-1 01 random accuracy is ± 1 millisecond.

If the timer measures approximately 1 second, then 0.001 second isequivalent to 0.1%. Therefore, MTEA = + 0.1%

8.2.1.2.2 Readability (R) (least significant digit for digital M&TE)

Since the least significant digit is 0.001 second for millisecond range, if the

timer measures approximately 1 second, then 0.001 second is equivalent to

0.1%. Therefore, R =±0.1%

8.2.1.2.3 M&TE temperature effect (MTETO)

The internal clock tolerance, over a temperature range of -20°C to + 500C, is±0.06% and the temperature range at SWGR room is 55 0F (12.78°C) to81.7°F (27.61 °C).

Therefore, MTETe = ± 0.06%

8.2.1.2.4 M&TE reference standards (MTERs)

The reference standard accuracy is assumed to be 25% of the M&TEaccuracy per JS-1 23-103C (Reference 6.3.7). Therefore:

MTERS = 0.25 x (± 0.1 %) = ±0.025 %

8.2.1.2.5 Total M&TE tolerance

The total M&TE allowance is the SRSS of the four components determinedabove. That is:

MTE = + (MTEA2+ R2 + MTETG2

+ MTERS2)11/2

MTE +(0.12 + 0.12 + 0.06' + 0.0252)12

MTE =+0.1556%

SCE 26-426 Rev. 3 (Reference: S0123-XXIV-7.15]

E4C-015

E&TS DEPARTMENTICCN NO./PRELIM. CCN NO. Pane of

UALUULATIUN 5H Ih. CCN CONVERSION:'CCN NO. CON




0 Joon kim Bill Lennartz C.;-m

8.2.1.3 Setting tolerance (ST)

Per assumption 3.1.1.2 the setting tolerance is ± 50ms, therefore:

If the timer measures approximately 0.77 sec., then t 50 ms is equivalent to t 6.5%.

8.2.1.4 Miscellaneous allowance (Ma)

Per Assumption 3.1.10 the miscellaneous allowance is:

Ma = ±0.5 %

8.2.2 Combination of uncertainties

Combining the uncertainties per the equation from Section 5.3.2, the TLU is:

TLU = Te2 + D 2 + PSe2 + Se 2 + Re 2 + MTE 2 +ST 2 +Ma 2

Te = N/AD = ± 6.5%PSe = N/ASe = N/ARe = N/AMTE = ±0.1556%ST = ± 6.5%Ma = ±0.5%

TLU=+(0 2 +6.5 2+02+02+02 +0.156 2+6.5 2+0.52)1% =±9.21%

TLU ±+9.21%

8.2.3 Allowable value tolerance (AVT) of time delay for LOV relay (BE1 -27)(reference section 5.4)

AVT = ( D2+ ST2+R2)112

ST = Setting tolerance: + 6.5%.D = Drift: ± 6.5%R = Readability of M&TE: ± 0.1%

Therefore, the tolerance for allowable value is:

AVT = +(6.52 +6.52+ 0.12)112% 9.19%

SCE 26-426 Rev. 3 lReference: S0123-XXIV-7.15]

E4C-015

E&TS DEPARTMENTICCN NO./ I


CALCULATION SHEET CCN CONVERSION:ICCN NO. CCN



REV ORIGINATOR DATE IRE DATE I REV ORIGINATOR DATE IRE DATE

0 Joon kim Bill Lennartz I_ILLz

8.2.4 Nominal operating time of LOV relay (BE1-27)

The LOV relay scheme should meet the following requirements (reference section 5.1):

a) The time delay of the entire LOVS channel up to and including the associated auxiliaryrelays should be 5 1.0 second

Since the TLU of the LOV relay is ± 9.21% (reference section 8.2.2), the time delay of the

entire LOVS channel should be

X (1 + 0.0921) second + 10 cycles _< 1.0 second

Where X is nominal operating time of BE1 -27 relay on loss of voltage.10 cycles is auxiliary relays (2 - HFA relays) operating time since the LOVchannel includes two HFA relays (reference section 6.4.1 and Attachment 9.3)

1.0921X seconds + 0.167 seconds _< 1.0 second

1.0921 X !5 0.833 seconds X :_ 0.76275 seconds

Select the nominal operating time of BE1-27 relay = 0.76 second

Operating time range of BE1 -27 relay will be

0.76 (1-0.0921) seconds _• X _< 0.76 (1 + 0.0921) seconds

0.69 seconds < X < 0.83 seconds

b) LOV scheme should not actuate on a voltage dip during load sequencing or largest motorstarting (refer to section 4.9)

If the preferred offsite power source supplies power to the Class 1 E 4.16 kV bus, theminimum voltage dip at the Class 1 E 4.16 kV bus during load sequencing is higher thanthe LOV relay pickup voltage of 3675 V (105 V x 35).

If the emergency diesel generator supplies power to the Class 1 E 4.16 kV bus, theminimum bus voltage dip at the Class 1 E 4.16 kV bus during load sequencing is lowerthan 3675 V. Base calculation E4C-082 does not include data for the voltage recoverytime during load sequencing

However, CCN #62 to E4C-082, which was issued to support PCN 574 to change thediesel generator AVR setting from 4460 ± 80 V to 4360 ± 80 V, includes data for the busvoltage recovery time during load sequencing.

CCN #62 to E4C-082 indicates that Class 1E 4.16 kV bus voltage decreases during loadsequencing, which is more severe than the largest motor starting because multiple motorsstart during load sequencing, below the minimum relay pickup voltage of 3635.46 V (refer

SCE 26-426 Rev. 3 I Reference: SO 123-XXIV-7.15]

E4C-015

ICCN NO.! IPRELIM. CCN NO. Pane ofE&TS DEPARTMENT

CALCULATION SHEET ~CCN CONVERSION:C OU TONI CNo NO. CCProject or ECP: SONGS 2 & 3 Calc No. E40-015

Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear Sheet 41_ of

IRV ORIGINATOR DATE IRE DATE REV ORIGINATOR DATE IRE ATEJoon kim I I Bill Lennartz IA

0 oo ki a: 2

to section 8.1.6). But the bus voltage recovers above the maximum relay reset voltage of3721.61 V (refer to section 8.1.6) within 0.6 seconds.

The minimum operating time of the LOVS relay scheme will be approximately 0.85second, considering the two auxiliary relay connected in series. Therefore, the LOV relayscheme not spuriously trip during the starting of the largest motor..

c) Since Class 1 E motors (460 V and 4.16 kV) are capable of sustained satisfactoryoperation with a voltage dip to 75% of rated voltage for 15 seconds, the LOV relayscheme should operate within 15 seconds at 75% of the rated motor voltage (section 4.8).

4.16 kV motor

In order to protect the 4.16 kV motors during a short time voltage dip, the BE1-27 relayshould operate within 15 seconds at 75% of rated motor voltage.

The voltage at the BE1 -27 relay corresponding to 75% of rated motor voltage:

Vreiay = (0.75 x rated motor voltage) / PT ratio = (0.75 x 4160 V) / 35 x 0.99856 = 89.3 V

The voltage drop between 4.16 KV bus and a motor is considered negligible.

Considering relay voltage tap tolerance of +0.918% / - 0.935% (refer to sect. 8.1.2):

Vrelay min- = 89.3 V x (1 - 0.00935) = 88.46 VVrelayrmax = 89.3 V x (1+ 0.00918) = 90.12 V

The voltage differences from the voltage tap setting (105 V) are 16.54 V (105 V - 88.46 V)to 14.88 V (105 V - 90.12 V), respectively. The BE1 -27 relay with a nominal time delay of0.76 seconds will operate within 3 seconds at the voltage differences from the voltage tapsetting (refer to Attachment 9.6).

460 V motor

In order to protect the 460 V motors during a short time voltage dip, the BE1 -27 relayshould operate within 15 seconds at a voltage corresponding to 75% of the ratedmotor voltage.

The voltage at the relay corresponding to 75% of rated motor voltage (460 V):

Vreiay = [0.75 x 460 V x 1.03 x (4160/480)] / (35 x 0.99856) = 88.12 V

*A voltage drop of 3% in the motor feeder cable and transformer was considered.

Considering relay voltage tap tolerance of + 0.918% / - 0.935% (refer to sect. 8.1.2):

SCE 26-426 Rev. 3 (Reference: SO I23-XXIV-7.15l

E4C-015

ICCN NO./PRELIM. CCN NO. Pane ofE&TS DEPARTMENT

CALCULATION SHEET CCN CONVERSION:I CONNO. CCN




0 Joon kimr Bill Lennartz

Vreiay in = 88.12 V X (1- 0.00935) = 87.30 VVretay max. = 88.12 V x (1+ 0.00918) 88.93 V

The voltage differences from the voltage tap setting (105 V) are 17.7 V (105 V - 87.3 V)and 16.07 V (105 V - 88.93 V), respectively. The BE1 -27 relay (with 105 V tap and anominal time delay of 0.76 seconds) will operate within 3 seconds at the voltagedifferences from the voltage tap setting (refer to Attachment 9.6).

Therefore, the LOV relay settings of voltage tap of 105 V and time delay of 0.76 second are

adequate.

8.2.5 Allowable value (as-found) of time delay for LOV relay BE1-27 only

Nominal time delay setting: 0.76 secondAllowable value tolerance: ± 9.19% (refer to section 8.2.3)

Therefore, 0.76 x (1 - 0.0919) second - Allowable value -< 0.76 (1 + 0.0919) second

0.69 second - Allowable time delay value !5 0.83 second

8.2.6 Allowable value (as-found) of time delay for LOVS channel

The LOVS channel consists of a LOV relay (127F1) and auxiliary relays 127F1-X3 and 127F1-X1/127F1-X2 connected in series. The time delay of the entire LOVS channel up to andincluding the auxiliary relays is s 1.0 second. This timing requirement also applies to the LOVSchannels associated with relays 127F2, 127F3, and 127F4.

Background section for Tech Spec. 3.3.7 states "A complete loss of offsite power will result inapproximately a 1 second delay in LOV actuation.

Base for Tech. Spec. SR 3.3.7.3.b also states "SR 3.3.7.3.b is the performance of a CHANNELCALIBRATION every 24 months."

Since the min. operating time of the auxiliary relay is not available, it was conservativelydetermined that the time delay of LOVS channel is 0.69 seconds a time delay 5 1.0 seconds,considering the operating time (10 cycles) of the two auxiliary relays (refer to Attachment 9.3).

This time delay limits will be used for Tech. Spec. SR 3.3.7.3.b.

8.2.7 As-left values with a prefault voltage of 115.5 V

Nominal time delay setting: 0.76 secondSetting tolerance: ± 50 ms (refer to section 3.1.1.2)

Upper limit: 0.76sec. + 0.05 second = 0.81 secondLower limit: 0.76 sec. - 0.05 second = 0.71 second

SCE 26-426 Rev. 3 1 Reference: SO] 23-XXIV-7.15]

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO.!PRELIM. CCN NO. Panp of


Calc No. E4C-015Project or ECP: SONGS 2 & 3Sheet 43 of


REV ORIGINATOR DATE IRE I DATE REV ORIGINATOR DATE IRE DATE

0 Joon kim Bill Lennartz0 onkmL


I-.-SCE 26-426 Rev. 3 { Reference: SO123-XXIV'-7.151

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO./PRELIM. CCN NO. Paop of



Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV SwitchcearSheet 44 of


Joan kim Bill Lennartz a Cro


.9-SCE 26-426 Rev. 3 IReference: SO 123-XXIV-7.151

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO.! IPRELIM. CCN NO. Paoe of


i I



REV ORIGINATOR DATE IRE j DATE REV ORIGINATOR DATE IRE DATE0 i Blaa Joan kim Bill Lennartz

I I j -~ -

9 ATTACHMENTS

9.1 Specification for Fluke 45 Multimeter

9.2 Wilmar Timer SC-1 01 Specification

9.3 Operating time of G.E. relay Type HFA

9.4 E-mail from John Horak of Basler, dated 3/14/2006, for setting tolerance and calibration interval ofBE1-27 relay.

9.5 E-mail from John Horak of Basler, dated 3/30/2006, for dropout (reset) accuracy of BE1 -27 relay

9.6 Figure 3-2 of Instruction Manual for Basler relay BE1 -27 - Inverse Timing Characteristic Curve

4.-SCE 26-426 Rev. 3 {Reference: S0123-XXIV-7.15]

E4C-015

ATTACHMENT 9.1 Sheet 4bCalculation E4C-0 15, rev. 0

Appendix A

Specifications

INTRODUCTION

Appendix A contains the specifications of the Fluke 45 Dual Display Multimeter.

These specifications assume:

* A I-year calibration cycle* An operating temperature of 18 to 28'C (64.4 to 82.40F)* Relative humidity not exceeding 90% (non-condensing) (70% for 1,000 kfl range

and above)

Accuracy is expressed as ±(percentage of reading + digits).

A-

E4C-015

SPECIFICATIONS - TRUE RMS AC VOLTAGE

ATTACHMENT 9.1Calculation E4C-015, rev. 0 Sheet (+ 7

TRUE RMS AC VOLTAGE, AC-COUPLED

Resolution

Range Slow Medium Fast

300 mV - 10/V 100 #V3V -- 100/.V 1 mV30V - 1 mV 10 mv300V - 10 mV 100 mV750V -- 1lO mV 1V

lO0 l pV -1000 mV 0YpV -

1OV 100 V -

750V 10 mV -

Accuracy

eUnear Accuracy d8 Accuracy Max Input atFrequency Slow Medium Fast Slow/Med Fast Upper Freq

20-50 Hz 1%* 100 1%+10 7%+2 0.15 0.72 2%+ 10 750V50 Hz -10 kHz 0.2%+100 0.2%+10 0.5%+2 0.08 0.17 0.4%+10 750 V10-20 kHz 0.5%+100 0.5% + 10 0.5%+2 0.11 0.17 1%+10 750 V20-50 kHz 2%+200 2%+20 2%+3 0.29 0.34 4%+20 400 V50-100 kHz 5%+500 5%+50 5%+6 0.70 0.78 10D%/+50 200V

Error in power mode will not exceed twice the linear accuracy specification

Accuracy specifications apply within the following limits, based on reading rate:

Slow Reading Rate:Medium Reading Rate:Fast Reading Rate:

Between 15,000 and 99,999 counts (full range)Between 1,500 and 30,000 counts (full range)Between 150 and 3,000 counts (full range)

Decibel Resolution

Resolution

Slow & Medium Fast

0.01 dB 0.1 dB

A-4

E4C-015

SPECIFICATIONS - ENVIRONMENTAL/GENERAL

ATTACHMENT 9. 1 Sheet 5

ENVIRONMENTAL

Warmup time

Temperature Coefficient

Operating Temperature

Storage Temperature

Relative Humidity(non-condensing)

Altitude

Vibration

Shock

GENERAL

Common Mode Voltage

Size

Weight

Power

Standards

Calculation E4C-015, rev. 0 -

1 hour to rated specifications for warmup < 1 hour, add 0.005% to all accuracyspecifications.

<0.1 times the applicable accuracy specification per degree C for 00 C to 181Cand 28 0C to 50 0 C (32 to 64.40F and 82.4 to 122"F)

DOC to 500C (32 to 122 0 F)

-400 C to + 70 0 C (-40 to 158 0F)

Elevated temperature storage of battery will accelerate battery self-discharge.Maximum storage time before battery must be recharged:

20 - 250C 1000 days

50 0C 180 days

700C 40 days

To 90% at 00C to 280C (32-82.40 F),To 80% at 280C to 350C (82.4-950F),To 70% at 350 C to 500 C (95-1220 F) except to 70% at 00C to 500 C (32-1220 F) forthe 1000 kD, 3 MO, 10 MC, 30 MO, 100 M0, and 300 MO ranges.

Operating 0 to 10,000 feet

Non-operating 0 to 40,000 feet

3 G @ 55 Hz

Half sine 40 G. Per Mil-T- 28800D, Class 3, Style E.Bench Handling. Per Mii-T-28800D, Class 3.

1000V dc or peak ac maximum from any input to earth

9.3 cm high, 21.6 cm wide, 28.6 cm deep (3.67 in high, 8.5 in wide, 11.27 in deep)

Net, 2.4 kg (5.2 Ibs) without battery;3.2 kg (7.0 Ibs) with battery;

Shipping, 4.0 kg (8.7 ibs) without battery;,4.8 (10.5 ibs) with battery

90 to 264V ac (no switching required), 50 and 60 Hz < 15 VA maximum

Complies with: IEC 348, UL1244, CSA Bulletin 566BEMC: Part 15 subpart J of FCC Rules, and VDE 0871.

RS-232-C Baud rates: 300, 600,1200, 2400, 4800 and 9600Odd, even or no parityOne stop bit

A-11

E4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO./PRELIM. CCN NO. Pane of


Project or ECP: SONGS 2 & 3 Calc No. E4C1-015

Subject: TLU Calculation for Loss of Voltage Relay at Class 1E 4.16 kV Switchgear Sheet -.A•- of

REV ORIGINATOR DATE IRE DATE I REV ORIGINATOR I DATE IRE DATE crI I 0

0 Joon kim Bill Lennartz Joon im IDATE

ATTACHMENT 9. Q..

PIM-O3-197 99: e2 WILPIO E..CTRICS INCA @30 L . . . . F.61

BULLETIN SC-101

QENERAL DESCRIMTtONThe Model SC-1I1 Solid Stalat Digebl

Timer is a PrIchaon ingtrunIent 1o0 reWcarding e~aed timet in unlt of tyuiw,ml~s d sla e ls.

It es developed prImarily to mccv-rarely iresure and cal•avte variousswitching OlWICAS "Ch at 01o1tctiva MI-

laYs. clcult breakers. and contactors.

SPECIFICATIONS i

INPUT PE 120volts*1 10%,S 0!601KO.I Mp. LOCK: (1) Position OFF-AllowstimingttoTEMP. RANCL. Oto5'C. : 40m €Ifc me emn nyMts mnode and be'RANIZE: (1) illes 0.99999 itOPPeC when the Start mode is

(2) 't111 0-99g reversed.(3) Seconds 0-•9"." (2) Posklon ON -- Allows timing to

START&STOP commence from any etert moe and beoMOOD.S (1) Dry comacu. NO or NC i01g; only bytt sto input.

(2) •C potentla4

OFF or ON POWIER: OFF .ON ewttch Supplies 120VAC power2.0toS30OVDC to unit.

(3) AC notmistL OFF or ON FE.: lnutowt rfuse.1/8IAS81.5 to 300VAC

*ACCURACY: (1) DryContacts: * I millIseconld ENCLOSURE: Attractivei mrlca esrryingcasew th(2) DC Voftag:; I mlllieMzcd removable hinged cover.(3)ACVottge- * V4 cycle SIZE&WOIGHT: 101" ,"x6,?pV o tnds.

DISPLAY: Solid State. 5 digits, 0.3 Inches lrigh. UNI CORD: Provided with a 6 foot 1 20VAC line cordRESET: Pushbutton, rset% the display. conveanietily stored Inside top cover.

.1. The "clok' ene "ed-out"' tolerances shated below must be acde In computing the overall •ccuracy:(a) The Ifnternl clock tolerance, over a tunpeartura renp of .209C to +0*•C, is .06%.(b) Above c-uc~les anre =I less sIgnIficant dilit. i

2. The AC 1Olte aCcuracy uiven Is the worst case at low voltagel, and improves witt% high voltage.

WILMAR.? ,- ELECTROJICS, INC. NO

2430 AMBLER STREET TORRANCE, CALIFORNIA 90505erv~srn "AV' 319F

a-SCE 26-426 Rev. 3 { Reference: SO 123-XXIl\-7.151

E4C-015

PROTECTIVE RELAYS 7292Type HFA

Multicontact Auxiliary Relays

Page 5

ATTACHMENT 9. 3Calculation E4C-015, rev. 0

For Ac and Dc Circuit Applications

Sheet 50 June 4, 1979

(Photo 8043394) (Pholo

Fig. 1. Surface mounting Fig. 2.(back connected) (bock

Type HFAS1A T

ype

APPLICATIONThe type HFA relay is designed for

application where a number of auxiliaryfunctions must be performed simul-taneously. Six contacts are provided. Ifmore than six circuits are to be controlled,the coils of two or more relays may beconnected in series (dc only) or in parallel.

All HFA relays have six electricallyseparate contact circuits adaptable foreither circuit-opening or circuit-closingapplications.

The HFA relays are available for front orback connection. The front connectedrelays are suitable for surface mountingonly as shown in Figure 3.

The back connected relays are suitablefor either surface mounting or semi-flushmounting: a steel flange is provided for thelatter. These are shown in Figures I and 2.

The HFA relay is also available in an S2type draw-out case as shown is Figure 4.

APPLICATIONSelection of Dc Relays for Tripping DutyWhere Operating Coil Circuit Is Opened ByAn Auxiliary Switch.The operating time of the standard HFA

8025537)

Semi-flushconnected)HFA5? A-F

(Photo 8025786)

Fig. 3. Surface mounting (Pho t o 1227763)(front connected) Fig. 4. Type HFA Multicentact relay.Type HFA51A-H Drawout

relay is approximately 5 cycles for the dcmodels (60 Hertz basis). If used on dc fortripping a circuit breaker, the operatingtime should be reduced to approximately 1cycle in order that no appreciable timedelay will be added to the operating time ofthe protective relay. This can be accom-plished by selecting a relay which has alower voltage rating than the controlcircuit. Recommended voltage ratings forone minute tripping duty are listed below.

auxiliary switch to prevent overheating.The increased current through the HFAoperating coil will assure operation of thetarget on the protective relay.

CONTACT RATINGContacts are electrically separate and

easily reversible from normally open tonormally closed or vice versa. The current-closing rating of the contacts is 30 amperes.The current-carrying rating is 12 amperescontinuously or 30 amperes for I minute.

Contact Interrupting Ratings

use Target Time to

S Relay O Celr. CloseV S upt p lye _.111 o lv ia p N .O .

(Voltsg oil n Contacts(Volts Current Prot. at Pickup

D ,) oted (Amps) Relay (60 Hz4Volts (amps a

Dc?(Aps Bosis)

24

32

48

125

250

6

6

12

24

A8

5-3

7.1

2.7

1.7

0.9

2.0

2.0

2.0

0.2

0.2

I 2 1 2o 2. Conttc Contactsvo-t " ,on ..Con ac 's t'p, 2.,

(Amps) APc)

Approx-imately

onecycle

NON-INDUCTIVE

6 to 24 15 30 15 30 1 30A8 a 16 230 20 30

125 3 6 460 8 12250 1 1 2

INDUCTIVE

24 6.0 12 115 20 2048 3.5 6 230 O 10

125 1.0 1.5 460 5 5250 0.3 0.35

When so applied, the HFA operatingcoil must be opened by the breaker

*Changted since Ap,. 23, 1979 issue. a I/c) Data subject to change w.thoul notice

RA 700, 701,702, 711-713, 722, 723, 731-737 GENERALa ELECTRIC

E4C-015

E&TS DEPARTMENTICCN NO./


UALULULA M IUIN4 Zr1l- I CCN CONVERSION:

ICCN NO. CCN


Subject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchgear Sheet of


0 Joon kim Bill Lennartz D j

ATTACHMENT 9. 4z.

S"John Horak"<johnhorak@BASLER .corn> To <[email protected]>

03/14/2006 05:30 AM cc

Subject RE: Basler relay BE1-27

Asok

Below is some info on the relay that can help in your evaluation. To fullyassess drift of the relay over time, we would have to go to a bill ofmaterials of the product, assess the effects of aging on each critical part,and then assess the relay performance after the aging process. Thepermutations of the effect of aging is huge. This would not be an easy task,so you must interpret this as.it was written by an engineering giving "of thecuff' and "shooting from the hip" answers. Also, he estimates that 0.25Vsetting accuracy (for a 55-160V range relay) should be relatively easy. Youmight experiment with the relays you have to verify this or see if you feelbetter accuracy is achievable.

John:I'll state what I can.

1) Estimate of typ.%cal 27/59 drift over time

The BEI-27/57 does not use any components within its sensing and referencecircuitry that would have any significant change in performance over time (ex.No aluminum electrolytic's, etc.). The declared pickup accuracy was intendedto be the accuracy over all varying elements including time and temperature.The original design testing, 21 years ago, should have included an acceleratedlife test to simulate 20 years. To pass this test, the device was/is requiredto maintain its accuracy spec. The test report also illustrates that pickupaccuracy is typically better than 0.3% over temperature, which is often themost severe element. My "shot from the hip answer" is that the pickup accuracyshould maintain within its declared accuracy, for a 5 year interval. If itmakes you feel more comfortable, I suggest doubling the accuracy allowance.

2) Accuracy/Resolution of 27/59 pickup setting potThe pickup setting control, is a continuous adjustable potentiometer. Thepotentiometer resistive element is laser trimmed cermet, and not a wire-woundelement. Therefore, its resistance in continuous and is not stepped by thewiper. The total rotation travel is approximately 300 degrees. If the settingrange is 55 - 160, then the adjustment is approximately .35 v/deg rotation. Intheory, any setting can be made. Being practical, I would expect it to bereasonably easy to set within 0.25v for the range stated.

Hope this helps - Jeff

John Horak. Application Engineer, Basler Electric6&;2Q S. Broadway #B, Centennial CO 801213G3-730-3021(v), 303-730-3022(F), 303-882-3686(C)Jo'hnhorak~basler.com

SCE26-426Rev. 3iRelerence:SO123-XXIV-7.151

E,4C-015

E&TS DEPARTMENT

CALCULATION SHEET

ICCN NO./PRELIM. CCN NO. Paae of

CCN CONVERSION:CCN NO- CCN


Sheet--__L ofSubject: TLU Calculation for Loss of Voltage Relay at Class 1 E 4.16 kV Switchgear

REV ORIGINATOR DATE IRE DATE REV ORIGINATOR tDATE IRE DATE

Joon kim Bill Lennartz0 ~ IL

ATTACHMENT 9.5

0"John Horak"<johnhorak@BASLER .com>

03/30/2006 08:58 AM

To <[email protected]>

cc

bcc

Subject RE: Dropout accuracy of BE1-27 relay

History: This message has been replied to.

Joon:

I have been enlightened by the factory. The BEl-27/59 has no intentional

hysteresis. The intent in the design of the relay is for dropout to be

exactly the same voltage as pickup. The 2% accuracy statement is trying

to say dropout is no more than 2% different from pickup, but the factory

reports that in actual application, it will be 99.9% of pickup. There is

no feedback from the output of the "V > Pickup Setting" comparator that

could affect dropout, and hence, pickup and dropout are the same. Output

chatter is prevented by time delay tripping in this fashion: if sensed

voltage is right at the pickup level, and the relay is oscillating

between pickup and dropout, the relay never times out, and hence the

relay will not time out unless voltage is solidly within the trip range.

There is also a 1.5-2 cycle minimum trip contact close time in the

relay.

John Horak, Application Engineer, Basler Electric

6620 S. Broadway #B, Centennial CO 80121

303-730-3021(V), 303-730-3022(F), 303-882-3686(C)[email protected]

4-SCE26426 Rev. 3 1Reference: SO 123-XXIk,-7.15]

E4C-015

ATTACHMENT 9. Sheet 100Calculation E4C-015, rev. 0

10

_ 4

40 -

30, 'i20 1.0

03

-o1___

01 0.1

48 44 40 36 32 28 24 20 16 12 8 4 0 Range 3

96 88 80 72 64 56 48 40 32 24 16 8 0 Range 4

D2867-23 Voltage Difference From PickupFigure 3-2. Undervoltage, Short Inverse Timing Characteristic Curve

(1000

100

99

60 10 (D504030 "

20 (

100705 1.0

0302

0.1

48 44 40 36 32 28 24 20 16 12 8 4 0 Range 396 88 80 72 64 56 48 40 32 2,4 16 B 0 Range 4

D2857-24 Voltage Difference From Pickup06-09-03

Figure 3-3. Undervoltage, Medium Inverse Timing Characteristic Curve

BE127/59 Functional Description 3-3

E4C-015

ENCLOSURE 3

ATTACHMENT AProposed Change Number (PCN) 577

Supplement 1

Existing Technical Specification page, Unit 2

DG-Undervoltage Start3.3.7

SURVEILLANCE REQUIREMENTS

SURVEILLANCE FREQUENCY

SR 3.3.7.1 Perform CHANNEL CHECK. 12 hours

SR 3.3.7.2 Perform CHANNEL FUNCTIONAL TEST. 24 months

SR 3.3.7.3 Perform CHANNEL CALIBRATION with setpointAllowable Values as follows:

a. Degraded Voltage Function:i. Dropout Ž 4123.0 V*ii. Pickup • 4144.6 V*

SDVS (Sustained Degraded Grid VoltageSignal):

24 months

Timei.ii.

delay:127D • 2.17 seconds.162D > 78 seconds andseconds.

128

with SIASDGVSS (Degraded Grid VoltageSignal):

Time delay:i. 127D > 1.83

seconds.ii. 162S 2 4.16

seconds.iii. 162T 2 0.88

seconds.

seconds and • 2.17

seconds and < 4.44

seconds and < 1.62

b. Loss of Voltage Function• 3796 V

Ž 3554 V and

Time delay: 2 0.75 seconds and< 1.0 seconds at 0 V.

* Dropout and pickup values will be set to Ž4151.0 V and •4172.8 V,respectively, until actions identified in SCE submittal dated May 27, 2005are completed.

SAN ONOFRE--UNIT 2 3.3-34 Amendment No. q-74-,196 I

ENCLOSURE3

ProposedATTACHMENT BChange Number (PCN) 577

Supplement I

Existing Technical Specification page, Unit 3









24 months

Timei.ii

delay:127D • 2.17 seconds.162D Ž 78 seconds and • 128seconds.

DGVSS (Degraded Grid Voltage with SIASSignal):

Time delay:i. 127D 2 1.83 seconds

seconds.ii. 162S Ž 4.16 seconds

seconds.iii. 162T Ž 0.88 seconds

seconds.

b. Loss of Voltage Function• 3796 V

and • 2.17

and < 4.44

and • 1.62

Ž 3554 V and

Time delay: Ž 0.75 seconds and• 1.0 seconds at 0 V.

* Dropout and pickup values will be set to 24151.0 V and •4172.8 V,respectively, until actions identified in SCE submittal dated May 27, 2005are completed.

SAN ONOFRE--UNIT 3 3.3-34 Amendment No. 46-,5-187 I

ENCLOSURE 3

ATTACHMENT CProposed Change Number (PCN) 577

Supplement I

Proposed Technical Specification page, redline and strikeout, Unit 2









24 months

Timei.ii.

delay:127D • 2.17 seconds.162D 7 18 seconds and • 128seconds.

DGVSS (Degraded Grid VoltageSignal):

with SIAS

Time delay:i. 127D Ž 1.83

seconds.ii. 162S Ž 4.16

seconds.iii. 162T 5 0.88

seconds.


seconds and < 4.44


b. Loss of Voltage Function 2 3554-V364~4.89 V, and •! 37196-V 36-94.52 V.

Time delay: 4-.-T5 0ý.69 seconds ande< 1.0 seconds at----(voltage change

from 115.5 V to 57.0 V).

* Dropout and pickup values will be set to 24151.0 V and •4172.8 V,respectively, until actions identified in SCE submittal dated May 27, 2005are completed.

SAN ONOFRE--UNIT 2 3.3-34 Amendment No. 174,-96

ENCLOSURE3

ProposedATTACHMENT DChange Number (PCN) 577

Supplement 1

Proposed Technical Specification page, redline and strikeout, Unit 3






SR 3.3.7.3 Perform CHANNEL CALIBRATION withAllowable Values as follows:

setpoint 24 months



Timei.ii.

delay:127D • 2.17 seconds.162D Ž 78 seconds andseconds.

128

with SIASDGVSS (Degraded Grid VoltageSignal):


seconds.ii. 162S 2 4.16

seconds.iii. 162T Ž 0.88

seconds.




b. Loss of Voltage Function 2! 3554-V36"44.'"89' V and _< 3796-V 3694.52 V.;

Time delay: 0--7-5 '0.69, seconds_ and_ 1.0 seconds aet-O- (voltage change

from 115.5 V to 57.0 V).


SAN ONOFRE--UNIT 3 3.3-34 Amendment No. ±6-, 87

ENCLOSURE 3

ATTACHMENT EProposed Change Number (PCN) 577

Supplement 1

Proposed Technical Specification page, Unit 2









24 months

Timei.ii.

delay:127D • 2.17 seconds.162D > 78 seconds and • 128seconds.





seconds.


seconds and < 4.44


b. Loss of Voltage Functionand • 3694.52 V.

> 3644.89 V

Time delay: 2 0.69 seconds and< 1.0 seconds (voltage change from115.5 V to 57.0 V).


SAN ONOFRE--UNIT 2 3.3-34 Amendment No.

ENCLOSURE 3

ATTACHMENT FProposed Change Number (PCN) 577

Supplement 1

Proposed Technical Specification page, Unit 3






SR 3.3.7.3 Perform CHANNEL CALIBRATION withAllowable Values as follows:

setpoint 24 months



Timei.ii.

delay:127D • 2.17 seconds.162D Ž 78 seconds andseconds.

• 128





seconds.


seconds and < 4.44


b. Loss of Voltage Functionand • 3694.52 V.

Ž 3644.89 V

Time delay: Ž 0.69 seconds and• 1.0 seconds (voltage change from115.5 V to 57.0 V).


SAN ONOFRE--UNIT 3 3.3-34 Amendment No.