ML17095A114

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License Amendment Request to Revise Emergency Action Level Scheme: Attachment 4, Supporting Calculations for EAL Thresholds, Part 2 of 5
ML17095A114
Person / Time
Site: Monticello  Xcel Energy icon.png
Issue date: 03/31/2017
From:
Northern States Power Company, Minnesota, Xcel Energy
To:
Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
Shared Package
ML17095A107 List:
References
L-MT-17-012 CA-02-192
Download: ML17095A114 (11)
v • d • e


Text

CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" with only Attachment K (11 total pages) fl Xcel Energy.. calculation Page No.: 02-192 Rev 003 A 1.0 Purpose/Objective This minor revision is prepared to revise the DCSDM scenario step time entry format to address the issue documented under CAP AR 01474466.

Specifically, colons are replaced with periods between the digits for seconds and tenths of a second. The pending changes associated with EC 25695 are also incorporated in the DCSDM database under this minor revision.

2.0 Methodology

The methodology of Revision 003 remains unaffected.

3.0 Acceptance

Criteria Acceptance criteria are not changed by this minor revision.

4.0 Assumptions

This minor revision adds no assumptions.

5.0 References

The following references are added under this minor revision.

5.9 DC Load Study Reports 5.9.1 DC Load Study Report EC 25695-Evaluate Replacement for Obsolete Relays ESRX1/2, ZSR1/2, MSR1/2, VSR1/2 6.0 Input Data Revision 003 inputs are unaffected by this minor revision.

7.0 Calculation

The database file which was used to perform this analysis is: 02-192_Rev003A.db, 03/22/201610:46, 19,130,368 bytes 8.0 Results and Conclusions The conclusions of revision 003 remain unchanged in that the battery is sufficiently sized to support the required duty cycle. 8.1. Device Voltage All devices analyzed meet the acceptance criteria defined in base revision 003 Section 3.2 with the following justifications:

Items with negative voltage margins are identified in Attachment C, along with justifications for their acceptability.

The most limiting loads for each of the batteries are described below. These devices and others that were close to limiting were reviewed and additional analysis performed (voltage divider analysis) to more accurately calculate actual terminal voltage. The results of these additional analyses are provided below. Some of the low margin loads are part of nonsafety related circuits and not required to operate during the various scenarios (as described in Attachment Q) or CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" fl.* Xcel Energy .. Calculation Page Calculation No.: 02-192 Rev 003A Page 2 of 4 are annunciator circuits that have short term voltage drops due to other occurrences (i.e. spring charge motor inrush or EDG field flash. Thus these loads were not considered in determining the minimum required battery voltage. The low margin loads were determined from a review of the Path Voltage Drop summary (Attachment B). Loads on safety related circuits with less than 2.0 volts of margin were reviewed and a summary is shown below. 8.2. Battery Sizing 8.2.1. Minimum Battery Terminal Voltage As outlined in base revision 003 Section 2.2, Attachment B was reviewed to determine the minimum required terminal voltage for the battery. Additionally, the resolutions for several of the devices in Attachment C are also included in this review since the validity of those resolutions is dependent upon maintaining adequate voltage at the nodes supplying the devices. Attachment F was also reviewed to determine the times in the scenario where the minimum device voltages are present. The details of this review are as follows: There are several devices supplied from Panels C84A, C84B, and the C04 annunciators (Nodes 28, 31, and 33, respectively) with voltage margins of 1.25 volts or less. These are all are annunciator circuits that have voltage margin greater than 3 volts (as shown in Attachment F) for all time periods except for the last minute of the scenario (when the EDG is manually started for the SBO scenario and there are 4 kV breaker spring charge motors at inrush). The relay contacts in these circuits are used for annunciator functions only with no impact to plant equipment.

Further review of Attachment B and the resolutions for the circuit breaker closing coils in Attachment C indicate that there are four time periods that require examination in determining the minimum required battery terminal voltage. These time periods are the first minute, the 120th minute, and the last 2 minutes of the scenario.

The devices with the lowest margin in the first minute of the event are located at 13 kV Swgr #12 (Node 21) and 4 kV Switchgear No. 16 (Node 23). Since the 13 kV Swgr is not Class 1 E (not safety related), these loads are will not be considered.

On 4 kV Switchgear No. 16 (Node 23), the devices are the close coils for Breaker 152-604 and 152-605. These circuits are discussed in attachment C and are shown to require 105.57 Vdc and 105.64 Vdc, respectively, at node 23. The most limiting of these two is the close coil for 152-605 with a margin of 1.84 volts. From Attachment F, the battery terminal voltage during the first minute is 110.90 Vdc. The required battery terminal voltage for the first minute is then (110.90 -1.84) 109.06 Vdc. This is equivalent to 1.881 Volts per Cell for the 58 cell battery. There are several circuit breaker closures modeled in the last minute of the second hour of the scenario.

Two of the close coils for these breakers are analyzed in Attachment C. From examination of the disposition in Attachment C, the close coil for circuit breaker 152-605 (Device 152-605-CC) is limiting and has an operating margin of 0.45 Vdc when operated in the last minute of the second hour. From Attachment F, the battery voltage during the final minute of the second hour is 109.31 Vdc. The required battery terminal voltage at the end of two hours is then (109.31-0.45) 108.86 Vdc. This is equivalent to 1.877 Volts per Cell for ttie 58 cell battery. Since required CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" lJ, Xcel Energy* Calculation Page Calculation No.: 02-192 Rev 003A Page 3 of 4 battery voltage at the end of two hours is less than that required for the first minute and the calculated battery terminal voltage at the end of two hours is greater than the minimum required for the first minute, the minimum required voltage determined for the first minute will be used for the first two hours of the event. From examination of Attachment B and the dispositions in Attachment C, the limiting device for the next to last minute (3:58 to 3:59) of the event is the close coil for circuit breaker 152-610 (Device 152-610-CC).

This close coil is analyzed in Attachment C. From examination of the disposition in Attachment C, the close coil for circuit breaker 152-610 (Device 152-610-CC) has an operating margin of 2.74 Vdc when operated in the next to last minute of the scenario.

From Attachment F, the battery terminal voltage during the next to last minute of the event is 109.71 Vdc. The required battery terminal voltage at the next to last minute of the scenario is then (109.71 -2.7 4) 106.97 Vdc. This is equivalent to 1.845 Volts per Cell for the 58 cell battery. This voltage is lower than the minimum required for the first two hours of the event and allows for a separate battery sizing analysis.

From examination of Attachment B and the dispositions in Attachment C, the limiting devices for the last minute of the event are part of the EOG 12 starting control circuit (Node 20). The two most limiting loads are the Booster Pump Motor (0211-11-BPM) with a margin of 0.40 Vdc at time step 58 and the main start solenoid valve (MVST1/C-92) with a margin of 1.34 Vdc at time step 56. The EOG start sequence begins at time step 56 and the voltage at the BPM dips momentarily due to the EOG field flash energizing during the manual start of the EOG at the end of the scenario.

This motor is already running when this slight voltage dip occurs and will continue running during time step 58 (when the EOG flashes).

This leaves the main start solenoid valve as the limiting load. From Attachment F, the battery terminal voltage during the last minute of the event is 106.50 Vdc. The required battery terminal voltage at the end of the scenario is then (106.50 -1.34) 105.16 Vdc. This is equivalent to 1.814 Volts per Cell for the 58 cell battery. This voltage is lower than the minimum required for the first 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> and 59 minutes of the event and allows for a separate battery sizing analysis.

The minimum required voltages for the composite scenario are: Scenario Min Required Terminal Volts Min Required Cell Volts D2DBA -First 120 Min 109.06 1.881 D2DBA -2:00 -3:59 106.97 1.845 D2DBA -Last Min of Event 105.16 1.814 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" jl;,. Xcel

8.2.2. Minimum

Required Battery Size Calculation Page Calculation No.: 02-192 Rev 003A Page 4 of 4 Battery 02 (C&O KCR-13 Cells) was shown to be adequately sized for the evaluated scenario and corresponding load profile. The acceptability of the battery is based on the results of Attachments H1, H2 and H3. The battery size is determined using the minimum required battery terminal voltages determined in Section 8.2.1. Scenario Required Cell Size Actual Cell Size Spare Capacity 020BA -First 120 Min 5.82 Positive Plates 6 Positive Plates 3.09% 020BA -2:00 -3:59 5.04 Positive Plates 6 Positive Plates 19.05% 020BA -Last Min of Event 5.33 Positive Plates 6 Positive Plates 12.57% 8.2.3. Minimum Number of Cells Based on these results, an analysis of the battery will not be performed to determine the number of cells that can be removed from service while maintaining adequate battery capacity as it is clear that there is not adequate margin to remove a cell and maintain a positive design margin with cells removed and the parameters used in this calculation.

8.3. Margin

Load An additional 1.0 Ade constant impedance load is included on panel 021 to allow for future load additions.

8.4. Cable

Ampacity Verification The cables in the system are sized adequately with regard to ampacity as described in section 7.7 of major revision 003. 9.0 Plant Impact 9.1. No new Future Actions are identified in this minor revision.

CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Xcel Energy I Monticello

-125Vdc Cale No.02-192 Rev. 003A Attachment K Voltage Profile DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 1 of KD2DBA7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26 am Battery: 02 Load (amperes)

Corrected Load Time (min.) (amps) 130.64 160.97 63.17 77.83 2 63.12 77.77 3 63.12 77.77 4 63.12 77.77 5 63.12 77.77 6 63.12 77.77 7 63.12 77.77 8 63.12 77.77 9 63.12 77.77 10 63.12 77.77 11 63.12 77.77 12 63.12 77.77 13 63.12 77.77 14 63.12 77.77 15 63.12 77.77 16 63.12 77.77 17 63.12 77.77 18 63.12 77.77 19 63.12 77.77 20 63.12 77.77 21 63.12 77.77 22 63.12 77.77 23 63.12 77.77 24 63.12 77.77 25 63.12 77.77 26 63.12 . 77.77 27 63.12 77.77 28 63.12 77.77 29 68.40 84.28 30 59.54 73.35 31 59.54 73.35 32 59.54 73.35 33 59.54 73.35 34 59.54 73.35 35 59.54 73.35 36 59.54 73.35 37 59.54 73.35 38 59.54 73.35 39 59.54 73.35 40 59.54 73.35 41 AMP-HRS Removed 2.68 3.98 5.28 6.57 7.87 9.16 10.46 11.76 13.05 14.35 15.65 16.94 18.24 19.53 20.83 22.13 23.42 24.72 26.01 27.31 28.61 29.90 31.20 32.50 33.79 35.09 36.38 37.68 38.98 40.38 41.60 42.83 44.05 45.27 46.49 47.72 48.94 50.16 51.38 52.61 53.83 AMP-HR/ Pos AMPS/ Pos Cell Voltage (Volts) Terminal Voltage Pit Pit (Volts) 0.45 26.83

  • 1.912 110.90 0.66 12.97 1.950 113.11 0.88 12.96 1.950 113.11 1.10 12.96 1.950 113.10 1.31 12.96 1.950 113.09 1.53 12.96 1.950 113.09 1.74 12.96 1.950 113.08 1.96 12.96 1.950 113.07 2.18 12.96 1.949 113.07 2.39 12.96 1.949 113.06 2.61 12.96 1.949 113.05 2.82 12.96 1.949 113.05 3.04 12.96 1.949 113.04 3.26 12.96 1.949 113.03 3.47 12.96 1.949 113.02 3.69 12.96 1.949 113.02 3.90 12.96 1.948 113.01 4.12 12.96 1.948 113.00 4.34 12.96 1.948 112.99 4.55 12.96 1.948 112.99 4.77 12.96 1.948 112.98 4.98 12.96 1.948 112.97 5.20 12.96 1.948 112.96 5.42 12.96 1.947 112.95 5.63 12.96 1.947 112.95 5.85 12.96 1.947 112.94 6.06 12.96 1.947 112.93 6.28 12.96 1.947 112.92 6.50 12.96 1.947 112.91 6.73 14.05 1.943 112.72 6.93 12.23 1.949 113.02 7.14 12.23 1.949 113.02 7.34 12.23 1.948 113.01 7.55 12.23 1.948 113.00 7.75 12.23 1.948 112.99 7.95 12.23 1.948 112.99 8.16 12.23 1.948 112.98 8.36 12.23 1.948 112.97 8.56 12.23 1.948 112.96 8.77 12.23 1.948 112.96 8.97 12.23 1.947 112.95 '*'Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Xcel Energy I Monticello . 125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 2 of KD2DBA Cale No.02-192 Rev. 003A 7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26 am Battery: 02 Load (amperes)

Corrected Load Time (min.) (amps) 59.54 73.35 42 59.54 73.35 43 59.54 73.35 44 59.54 73.35 45 59.54 73.35 46 59.54 73.35 47 59.54 73.35 48 59.54 73.35 49 59.54 73.35 50 59.54 73.35 51 59.54 73.35 52 59.54 73.35 53 59.54 73.35 54 59.54 73.35 55 59.54 73.35 56 59.54 73.35 57 59.54 73.35 58 59.54 73.35 59 59.53 73.35 60 59.47 73.27 61 59.47 73.27 62 59.47 73.27 63 59.47 73.27 64 59.47 73.27 65 59.47 73.27 66 59.47 73.27 67 59.47 73.27 68 59.47 73.27 69 59.47 73.27 70 59.47 73.27 71 59.47 73.27 72 59.47 73.27 73 59.47 73.27 74 59.47 73.27 75 59.47 73.27 76 59.47 73.27 77 59.47 73.27 78 59.47 73.27 79 59.47 73.27 80 59.47 73.27 81 59.47 73.27 82 AMP-HRS Removed 55.05 56.27 57.50 58.72 59.94 61.16 62.39 63.61 64.83 66.05 67.28 68.50 69.72 70.94 72.17 73.39 74.61 75.83 77.06 78.28 79.50 80.72 81.94 83.16 84.38 85.61 86.83 88.05 89.27 90.49 91.71 92.93 94.15 95.38 96.60 97.82 99.04 100.26 101.48 102.70 103.92 AMP-HR/ Pos AMPS/ Pos Cell Voltage (Volts) Terminal Voltage Pit Pit (Volts) 9.18 12.23 1.947 112.94 9.38 12.23 1.947 112.93 9.58 12.23 1.947 112.92 9.79 12.23 1.947 112.92 9.99 12.23 1.947 112.91 10.19 12.23 1.947 112.90 10.40 12.23 1.946 112.89 10.60 12.23 1.946 112.88 10.81 12.23 1.946 112.88 11.01 12.23

  • 1.946 112.87 11.21 12.23
  • 1.946 112.86 11.42 12.23
  • 1.946 112.85 11.62 12.23
  • 1.946 112.84 11.82 12.23
  • 1.945 112.84 12.03 12.23
  • 1.945 112.83 12.23 12.23
  • 1.945 112.82 12.44 12.23 1.945 112.81 12.64 12.23 1.945 112.80 12.84 12.23 1.945 112.79 13.05 12.21 1.945 112.79 13.25 12.21 1.944 112.78 13.45 12.21 1.944 112.77 13.66 12.21 1.944 112.76 13.86 12.21 1.944 112.75 14.06 12.21 1.944 112.74 14.27 12.21 1.944 112.73 14.47 12.21 1.944 112.72 14.67 12.21 1.943 112.71 14.88 12.21 1.943 112.71 15.08 12.21 1.943 112.70 15.29 12.21 1.943 112.69 15.49 12.21 1.943 112.68 15.69 12.21 1.943 112.67 15.90 12.21 1.942 112.66 16.10 12.21 1.942 112.65 16.30 12.21 1.942 112.64 16.51 12.21 1.942 112.63 16.71 12.21 1.942 112.62 16.91 12.21 1.942 112.61 17.12 12.21 1.941 112.60 17.32 12.21 1.941 112.59 '*' Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Xcel Energy I Monticello

-125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 3 of KD2DBA Cale No. 02-i92 Rev. 003A 7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26 am Battery: 02 Load (amperes)

Corrected Load Time (min.) (amps) 59.47 73.27 83 59.47 73.27 84 59.47 73.27 85 59.47 73.27 86 59.47 73.27 87 59.47 73.27 88 59.47 73.27 89 59.47 73.27 90 58.98 72.67 91 58.98 72.67 92 58.98 72.67 93 58.98 72.67 94 58.98 72.67 95 58.98 72.67 96 58.98 72.67 97 . 58.98 72.67 98 58.98 72.67 99 58.98 72.67 100 58.98 72.67 101 58.98 72.67 102 58.98 72.67 103 58.98 72.67 104 58.98 72.67 105 58.98 72.67 106 58.98 72.67 107 58.98 72.67 108 58.98 72.67 109 58.98 72.67 110 58.98 72.67 111 58.98 72.67 112 58.98 72.67 113 58.98 72.67 114 58.98 72.67 115 58.98 72.67 116 58.98 72.67 117 58.98 72.67 118 58.98 72.67 119 124.31 153.17 120 58.21 71. 72 121 58.21 71.72 122 58.21 71. 72 123 AMP-HRS Removed 105.15 106.37 107.59 108.81 110.03 111.25 112.47 113.69 114.91 116.12 117.33 118.54 119.75 120.96 122.17 123.38 124.60 125.81 127.02 128.23 129.44 130.65 131.86 133.07 134.28 135.50 136.71 137.92 139.13 140.34 141.55 142.76 143.97 145.19 146.40 147.61 148.82 151.37 152.57 153.76 154.96 AMP-HR/ Pos Pit 17.52 17.73 17.93 18.13 18.34 18.54 18.75 18.95 19.15 19.35 19.55 19.76 19.96 -20.16 20.36 20.56 20.77 20.97 21.17 21.37 21.57 21.78 21.98 22.18 22.38 22.58 22.78 22.99 23.19 23.39 23.59 23.79 24.00 24.20 24.40 24.60 24.80 25.23 25.43 25.63 25.83 AMPS/ Pos Cell Voltage (Volts) Terminal Voltage Pit (Volts) 12.21 1.941 112.58 12.21 1.941 112.57 12.21 1.941 112.56 12.21 1.941 112.55 12.21 1.940 112.54 12.21 1.940 112.53 12.21 1.940 112.52 12.21 1.940 112.51 12.11 1.940 112.52 12.11 1.940 112.51 12.11 1.940 112.50 12.11 1.939 112.49 12.11 1.939 112.48 12.11 1.939 112.47 12.11 1.939 112.46 12.11 1.939 112.45 12.11 1.939 112.44 12.11 1 .938 112.43 12.11 1.938 112.41 12.11 1.938 112.40 12.11 1.938 112.39 12.11 1.938 112.38 12.11 1.937 112.37 12.11

  • 1 .937 112.36 12.11
  • 1.937 112.35 12.11
  • 1.937 112.34 12.11
  • 1 .937 112.33 12.11
  • 1.936 112.32 12.11
  • 1.936 112.30 12.11
  • 1.936 112.29 12.11
  • 1.936 112.28 12.11 1.936 112.27 12.11 1.935 112.26 12.11 1.935 112.25 12.11 1.935 112.23 12.11 1.935 112.22 12.11 1.935 112.21 25.53 1.885 109.31 11.95 1.935 112.21 11.95 1.934 112.20 11.95 1.934 112.19 '*' Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Xcel Energy I Monticello*

125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 4 of KD2DBA Cale No. 02*192 Rev. 003A 7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26 am Battery: 02 Load (amperes) 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 58.21 63.38 107.20 58.14 58.14 58.14 58.14 58.14 58.14 58.14 58.14 58.14 58.14 58.14 58.14 Corrected Load (amps) 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 71.72 78.09 132.08 71.64 71.64 71.64 71.64 71.64 71.64 71.64 71.64 71.64 71.64 71.64 71.64 Time (min.) 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 AMP-HRS Removed 156.15 157.35 158.54 159.74 160.93 162.13 163.33 164.52 165.72 166.91 168.11 169.30 170.50 171.69 172.89 174.08 175.28 176.47 177.67 178.86 180.06 181.26 182.45 183.65 184.84 186.04 187.23 188.53 190.73 191.93 193.12 194.32 195.51 196.70 197.90 199.09 200.29 201.48 202.67 203.87 205.06 AMP-HR/ Pas Pit 26.03 26.22 26.42 26.62 26.82 27.02 27.22 27.42 27.62 27.82 28.02 28.22 28.42 28.62 28.81 29.01 29.21 29.41 29.61 29.81 30.01 30.21 30.41 30.61 30.81 31.01 31.21 31.42 31.79 31.99 32.19 32.39 32.59 32.78 32.98 33.18 33.38 33.58 33.78 33.98 34.18 AMPS/ Pas Cell Voltage (Volts) Pit 11.95 1.934 11.95 1.934 11.95 1.934 11.95 1.933 11.95 1.933 11.95 1.933 11.95 1.933 11.95 1.933 11.95 1.932 11.95 1.932 11.95 1.932 11.95 1.932 11.95 1.931 11.95 1.931 11.95 1.931 11.95 1.931 11.95 1.931 11.95 1.930 11.95 1.930 11.95 1.930 11.95 1.930 11.95 1.929 11.95 1.929 11.95 1.929 11.95 1.929 11.95 1.928 11.95 1.928 13.02 1.923 22.01

  • 1.885 11.94 1.927 11.94 1.927 11.94 1.927 11.94 1.926 11.94 1.926 11.94 1.926 11.94 1.926 11.94 1.925 11.94 1.925 11.94 1.925 11.94 1.925 11.94 1.924 '*' Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Terminal Voltage (Volts) 112.17 112.16 112.15 112.14 112.12 112.11 112.IO 112.09 112.07 112.06 112.05 112.03 112.02 112.01 112.00 111.98 111.97 111.96 111.94 111.93 111.92 111.90 111.89 111.87 111.86 111.85 111.83 111.55 109.33 111.78 111.76 111.75 111.74 111.72 111.71 111.69 111.68 111.66 111.65 111.63 111.62 Xcel Energy I Monticello

-125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 5 of KD2DBA Cale No. 02-*192 Rev. 003A 7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26 am Battery: 02 Load (ampems) Corrected Load Time (min.) (amps) 58.14 71.64 165 58.14 71.64 166 58.14 71.64 167 58.14 71.64 168 58.14 71.64 169 58.14 71.64 170 58.14 71.64 171 58.14 71.64 172 58.14 71.64 173 58.14 71.64 174 58.14 71.64 175 58.14 71.64 176 58.14 71.64 177 58.14 71.64 178 58.14 71.64 179 58.14 71.64 180 58.10 71.58 181 58.10 71.58 182 58.10 71.58 183 58.10 71.58 184 58.10 71.58 185 58.10 71.58 186 58.10 71.58 187 58.10 71.58 188 58.10 71.58 189 58.10 71.58 190 58.10 71.58 191 58.10 71.58 192 58.10 71.58 193 58.10 71.58 194 58.10 71.58 195 58.10 71.58 196 58.10 71.58 197 58.10 71.58 198 58.10 71.58 199 58.10 71.58 200 58.10 71.58 201 58.10 71.58 202 58.10 71.58 203 58.10 71.58 204 58.10 71.58 205 AMP-HRS Removed 206.26 207.45 208.64 209.84 211.03 212.23 213.42 214.61 215.81 217.00 218.20 219.39 220.58 221.78 222.97 224.17 225.36 226.55 227.75 228.94 230.13 231.32 232.52 233.71 234.90 236.10 237.29 238.48 239.68 240.87 242.06 243.25 244.45 245.64 246.83 248.03 249.22 250.41 251.61 252.80 253.99 AMP-HR/ Pos AMPS/ Pos Cell Voltage (Volts) Terminal Voltage Pit Pit (Volts) 34.38 11.94 1.924 111.60 34.58 11.94 1.924 111.58 34.77 11.94 1.924 111.57 34.97 11.94 1.923 111.55 35.17 11.94 1.923 111.54 35.37 11.94 1.923 111.52 35.57 11.94 1.922 111.50 35.77 11.94 1.922 111.49 35.97 11.94 1.922 111.47 36.17 11.94 1.922 111.45 36.37 11.94 1.921 111.44 36.57 11.94 1.921 111.42 36.76 11.94 1.921 111.40 36.96 11.94 1.920 111.39 37.16 11.94 1.920 111.37 37.36 11.94 1.920 111.35 -3.7.56 11.93 1.920 111.34 37.76 11.93 1.919 111.32 37.96 11.93 1.919 111.30 38.16 11.93 1.919 111.28 38.36 11.93 1.918 111.26 38.55 11.93 1.918 111.25 38.75 11.93 1.918 111.23 38.95 11.93 1 .917 111.21 39.15 11.93 1.917 111.19 39.35 11.93 1.917 111.17 39.55 11.93 1.916 111.15 39.75 11.93 1.916 111.13 39.95 11.93 1.916 111.11 40.14 11.93 1.915 111.10 40.34 11.93 1.915 111.08 40.54 11.93 1.915 111.06 40.74 11.93 1.914 111.04 40.94 11.93 1.914 111.02 41.14 11.93 1.914 111 .00 41.34 11.93 1.913 110.98 41.54 11.93 1.913 110.96 41.74 11.93 1.913 110.94 41.93 11.93 1.912 110.92 42.13 11.93 1.912 110.90 42.33 11.93 1.912 110.88 '*' Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Xcel Energy I Monticello

-125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 6 of KD2DBA Cale No.02-192 Rev. 003A 7 CA-02-192, "MNGP 125 Volt Div. II Battery Calculation" Voltage Profile Generation Date: 0312212016 10:26.am Battery: 02 Load (amperes) 58.10 . 58.10 58.10 58.10 58.10 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.07 58.04 58.04 58.04 58.04 58.04 58.04 . 58.04 58.04 58.04 58.04 58.04 58.04 58.04 63.20 105.93 Corrected Load (amps) 71.58 71.58 71.58 71.58 71.58 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.55 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 71.52 77.87 130.52 Time (min.) 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 AMP-HRS Removed 255.18 256.38 257.57 258.76 259.96 261.15 262.34 263.53 264.73 265.92 267.11 268.30 269.50 270.69 271.88 273.07 274.27 275.46 276.65 277.84 279.04 280.23 281.42 282.61 283.80 284.99 286.19 287.38 288.57 289.76 290.95 292.15 293.34 294.64 296.81 AMP-HR/Pas Pit 42.53 42.73 42.93 43.13 43.33 43.52 43.72 43.92 44.12 44.32 44.52 44.72 44.92 45.11 45.31 45.51 45.71 45.91 46.11 46.31 46.51 46.70 46.90 47.10 47.30 47.50 47.70 47.90 48.10 48.29 48.49 48.69 48.89 49.11 49.47 AMPS/ Pas Pit 11.93 11.93 11.93 11.93 11.93 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 11.92 12.98 21.75 Cell Voltage (Volts) Terminal Voltage (Volts) 1.911 110.86 1.911 110.84 1.911 110.82 1.910 110.79 1.910 110.77 1.910 110.76 1.909 110.73 1.909 110.71 1.908 110.69 1.908 110.67 1.908 110.65 1.907 110.62 1.907 110.60 1.907 110.58 1 .906 110.56 1.906 110.53 1.905 110.51 1.905 110.49 1.905 110.46 1.904 110.44 1.904 110.42 1 .903 110.39 1.903 110.37 1.902 110.34 1.902 110.32 1.902 110.29 1.901 110.27 1.901 110.24 1.900 110.22

  • 1.900 110.19
  • 1.899 110.16
  • 1.899 110.14 1.899 110.12 1.892 109.71 1.836 106.49 '*' Denotes Extrapolated Data. Please Verify the Battery Characteristics Library. Xcel Energy I Monticello

-125Vdc DCSDM Version 3.0 Attachment KD2DBA Page KD2DBA 7 of KD2DBA Cale No.02-192 Rev. 003A 7

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