1072260 VA Hospital AF Report R0 (c).pdf
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- Z1DA--36C261-24-AP-0122 | 654-24-1-6035-0001 | project 654-24-006 Circuit Breaker and Feeder Testing | 654
- Solicitation number
- 36C26124Q0160
About this file
This solicitation is for circuit breaker and feeder testing services at a Department of Veterans Affairs medical center. The solicitation number is 36C26124Q0160 and was issued by VISN 21. Testing is required for 654 circuit breakers and feeders located throughout the facility. Responses are due by January 22, 2022. The awarded contractor will be expected to perform on-site testing, provide a written report of findings, and apply arc flash labels. The period of performance is one year from the award date.
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Other files
| File | Type | Posted |
|---|---|---|
| 36C26124Q0160 0002.docx | DOCX document | |
| 36C26124Q0160 0001.docx | DOCX document | |
| 1072260 VA Hospital AF Report R1 (a).pdf | ||
| P07 WD Service 2015-5595 Rev 20 Eff 20230727.pdf | ||
| 36C26124Q0160.docx | DOCX document | |
| S02 Contractor Badging.pdf | ||
| S02 Attachment F- Plans and diagrams Revised 20231113.pdf | ||
| S02 Attachment E- Rules of Behavior for the Contractor.pdf | ||
| S02 RFI Form.pdf | ||
| S02 Attachment B- Specifications revised 20231201.pdf |
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Text version
Electrical Reliability Services, Inc.
1380 Greg Street, Suite 216 Sparks, NV 89431
USA
T (775) 746-4466 F (775) 746-4469 www.ERS.vertiv.com
September 17, 2021
Triumph Electric 1360 Greg St Suite 106 Sparks, NV 89434
Attention: Mr. Ryan Flickinger
Subject: Power System Study – Veteran's Affairs Medical Center ERS Reference No. 1072260
Mr. Ryan Flickinger:
Enclosed is the subject Power System Study. Please review and contact us if you find any errors or omissions that need to be addressed.
Please let me know upon your acceptance/approval of the study so that we can move forward and order the arc flash hazard labels.
It was our pleasure to be of service to you on this project. If you have any questions, or if we can be of further assistance, please do not hesitate to call.
Thank you, Electrical Reliability Services, Inc.
Enclosures http://www.ers.vertiv.com/
1380 Greg Street, Suite 216 Sparks, NV 89431
USA
T (775) 746-4466 F (775) 746-4469 www.ERS.vertiv.com
Power System Study
Prepared by: Electrical Reliability Services
ERS Reference No. 1072260
Project: Veteran's Affairs Medical Center 975 Kirman Ave Reno, NV 89502
Client: Triumph Electric 1360 Greg St Suite 106 Sparks, NV 89434
Submitted: September 17, 2021
Submitted by: Jenet Christine Roxas Power Systems Engineer
Reviewed by: David Cho, P.E.
Supervising Power Systems Engineer http://www.ers.vertiv.com/
ERS#: 1072260 09/17/21 REV 0 PAGE i ERS v2.1
TABLE OF CONTENTS
1.0 INTRODUCTION Page 1
2.0 EXECUTIVE SUMMARY Page 5
2.1 Short Circuit Analysis Page 5
2.2 Protective Device Coordination Page 5
2.3 Arc Flash Evaluation Page 5
3.0 ANALYSIS AND METHODS Page 6
3.1 Short Circuit Analysis Page 6
3.2 Protective Device Coordination Page 7
3.3 Arc Flash Evaluation Page 7
4.0 FINDINGS AND RECOMMENDATIONS Page 14
4.1 Short Circuit Analysis Page 14
4.2 Protective Device Coordination Page 16
4.3 Arc Flash Evaluation Page 17
5.0 CLOSING REMARKS Page 19
APPENDIX 1 Glossary of Terms
APPENDIX 2 Engineering Bibliography & Reference Materials
APPENDIX 3 Project Drawings & Utility Fault Duty Data
APPENDIX 4 Short Circuit Fault Analysis Input Report
APPENDIX 5 Short Circuit Fault Analysis Output Report
APPENDIX 6 Device Evaluation Report
APPENDIX 7 Recommended Device Settings
APPENDIX 8 TCC’s
APPENDIX 9 Arc Flash Data/Summary
APPENDIX 10 Analysis Model One-line Diagram
ERS#: 1072260 09/17/21 REV 0 PAGE ii ERS v2.1
REVISION NOTES
REV DATE CHANGES
0 09/17/2021 • N/A - Original Issue
ERS#: 1072260 09/17/21 REV 0 PAGE 1
1.0 INTRODUCTION
Power system studies were performed to analyze the quality of protection for the electrical power distribution system at the Veteran's Affairs Medical Center facility.
The studies performed included short circuit, protective device coordination and arc flash evaluation for the equipment as indicated on the attached analysis model one-line diagram in the Appendix.
1.1 Major objectives of the studies
• Compare calculated fault duties with the withstand and interrupting ratings for distribution panels and protective devices.
• Recommend protective device settings which selectively isolate faults in a manner which is consistent with the basic system design and applicable codes and standards. These recommendations will be given to achieve an optimum balance between protection and selective fault isolation.
• Determine arc flash incident energy levels and PPE requirements.
• Note areas of deficiency and make general recommendations.
1.2 Report Content
• Section 2.0 contains an executive summary of the study findings.
• Section 3.0 contains detailed information on the analysis and methods.
• Section 4.0 contains detailed findings and recommendations.
• The appendices contain short circuit fault analysis information, recommended settings, time current curves, arc flash analysis data and a one-line diagram of the system studied.
1.3 Basic System Data and Assumptions
System data for the power system study was obtained from ERS field gathered data and data supplied by Triumph Electric. Any system changes after the time of data collection/submittal will render the findings in this report to be inaccurate and a study revision will be required.
Utility source short circuit fault duties were as given by the electrical utility and are attached in Appendix 3.
All analysis was performed with the power system in the normal condition only (utility power source, ATS’s in normal position, Tie breakers open). The only exception to this is that all UPS’s were assumed to have bypass capability in order to propagate the maximum fault duty through the system to facilitate the most stringent short circuit evaluation. Alternative scenarios (if any) modify this default configuration assumption as noted in Section 1.4 below (if applicable).
ERS#: 1072260 09/17/21 REV 0 PAGE 2
Assumptions were made for the following:
• Relay “RLY-COOPER VFI”, assumed as Cooper Tri-Phase
• Protective devices type/model “CB-BLDG 10 PBLS1, CB-PSG-2-EG-9, CB-PSG-2-NG-11, CB-PSG-2-EG-5, CB-EG-10, CB-NG-12, CB-EG-6, MAIN-CB-PEHEB, CB-ELEV-2 S9, CB-ELEV-3 P12, MAIN-CB-PANEL
M, MAIN-CB-EHLS, DS-CB ATS-FPC (N), FS-MTR-ELEV P1, MAIN CB-
PBLE1E, FS-AHU-1, FS-ELEV-1, and (B.6) CB-PB12A” assumed as blank.
• Settings for breakers “CB-RIB, CB-BIB, MAIN CB-BATT.1, MAIN CB-
BATT.2, CB-MIB, CB-MBP, MAIN CB C-UD, CB-XF-BLA-1, CB-MCC1,
MAIN CB-PNL3A, CB-ATS-1-N, CB-FP-N, CB-FP-E, CB-PB1GD, MAIN
CB-PB9GC, MAIN CB-1D122-D, CB-PHE1A, CB-XF-PBLE, and MAIN- CB-PBLE” assumed as HI or MAX.
• INST settings for CB-EG-8, and CB-HEEA, assumed as HI or MAX.
• CB-HECA assumed as 400A breaker rating.
• CB-PBEQ3 assumed as 100A BAB.
• ATS rating for “(B.10)-ATS TELE, (B.10)-ATS IRM/UPS, (B.10)-ATS-
EMDP, (B.15) ATS-CATERPILLAR, ATS DB-01T-B, ATS PNL-M, ATS-
EHLS, (B.5) ATS1A, (PIPE SHOP) ATS-FP, ATS FPC, ATS-14-EQ,
ATS-14-CR, and ATS-14-LS”, assumed as 50kA.
• Disconnect rating for “DS-ELEV-1, DS-P1, (B1.A) ELEV P1, ELEV2, ELEV3, ELEV4, DS-1D134-D, DS-1D160-D, DS-1D165-D, DS-1D139-D, DS-AHU-1”, assumed as 35kA.
• Transformer secondary voltage assumed as 208V for XF-BLA-1, XF- PELB, XF-ELC, and XF-TLLS.
• Transformer secondary voltage assumed as 480V for XF-PBLE.
• Cable length of “CBL-EG-9, CBL-NG-11, and CBL-EG-5” assumed as 20ft.
• Cables “CBL-XF-T7”, assumed as #1/0, 1ft. “CBL-XF-T1, CBL-XF-TS1, and CBL-XF-TS2” assumed as #1/0, 5ft.
• Cables “CBL-PB3B, CBL-BLDG 10 PBLS1,and CBL-PHE1B” assumed as #4/0, 5ft.
• Cable size “CBL-PNL BHA, CBL-BHB, CBL-MTR-ELEV P1, and CBL-
XF-BLA-1” #4/0.
• Cable size “CBL-DBHN-7, and CBL-NEW PARKING” assumed as 2 Sets #3/0.
• Cables “CBL-ELEV-2 S9, CBL-PELB, CBL-ELC, CBL-TLLS, CBL-
PBLE1E, CBL-PBLE1F, CBL-PBLE1G, CBL-PBLE1A, CBL-PBLE2C,
CBL-XF-PBLE, and CBL-PHE1A”, assumed as #2, 5ft.
• Cables “CBL-ATS PH, CBL-ATS PNL-M, CBL-ATS EHLS, and CBL- PANEL M, CBL-PBLE, and CBL-EHLS”, assumed as 2 Sets #3/0, 5ft.
• Cables “CBL-XF-T3, (B1.D) CBL-XF-T2, CBL-XF-T5, and CBL-XF-T4”, assumed as #750, 1ft.
ERS#: 1072260 09/17/21 REV 0 PAGE 3
• Cables “CBL-BLA-2, CBL-AHU-23, and CBL-(B1.A) ELEV P1”, assumed as #2/0.
• Cables “CBL-ELEV-3 P12, CBL-XF-PELB, CBL-XF-ELC, CBL-XF-TLLS, CBL-PB7RA”, assumed as #8, 5ft.
• Cable “CBL-JB-B.8” assumed as 8 Sets #500, 5ft.
• Cables “CBL-ATS-PH_, CBL-BLDG 1A, CBL-ATS-ME-E”, assumed as 2 Sets #500, 5ft.
• Cables size for “CBL-DP1, and CBL-PEHEB”, assumed as 2 Sets #500.
• Cable size for “CBL-PB22A”, assumed as #6.
• Cable size for CBL-PB21A, and CBL-ROOF ELEV., assumed as #350.
• Cable “CBL-BLA-1”, assumed as 2 Sets #4/0.
• Cable “CBL-XF-EMSB-1”, assumed as 2 Sets #350.
• Cable “CBL-DS-CB-ATS-FPC (N)”, assumed as 5 Sets of #250, 5ft.
• Cable “CBL-DB2”, assumed as 2 Sets #350.
• Cable “CBL-PB22B”, assumed as #1/0.
• Cable “CBL-EMSB-1A”, assumed as 4 sets of #750.
Devices integral within UPS’s, static switch cabinets, PDU’s and generators were not included as part of this study scope.
Only relay settings relevant to the overcurrent protection elements are determined by this analysis. All other relay settings (logic, control, display, communication…) are design issues and are beyond the scope of this study.
1.4 System Analysis Scenarios
Multiple system configuration scenarios were analyzed as detailed in the table below. The arc flash results as indicated in the Appendix are independently based on the worst-case scenario (Normal & 3 Gen ON, Motors OFF, Normal) for each location. The short circuit analysis and associated equipment short circuit evaluation were based on the scenario with the greatest fault duty.
ERS#: 1072260 09/17/21 REV 0 PAGE 4
SCENARIO NAME DESCRIPTION NOTES
Normal
• Normal Utility
• ATS’s in N
• Tie CBs MSB-T, NMSB-TIE-B, and CB-MRS-TIE are OPEN
• All motor loads are ON
Tie CB ON, Source 1
• Normal Utility
• ATS’s in N
• Breakers MAIN CB-MSB2, MAIN CB-NMSB-1A, and MAIN CB-MS are OPEN
• Tie CBs MSB-T, NMSB-TIE-B, and CB-MRS-TIE are CLOSED
Tie CB ON, Source 2
• Normal Utility
• ATS’s in N
• Breakers MAIN CB-MSB1, MAIN CB-NMSB-1, and MAIN CB-MRS are OPEN
• Tie CBs MSB-T, NMSB-TIE-B, and CB-MRS-TIE are CLOSED
3 Gen ON, Motors OFF, Normal
• All Generators are online
• ATS’s in E
• Tie CB EMSB-TIE-B is OPEN
• All motor loads are OFF
3 Gen ON, Motors OFF, Source 1
• Tie CB EMSB-TIE-B is
CLOSED
• Breaker MAIN CB-EMSB-1A is
OPEN
• ATS’s in E
3 Gen ON, Motors OFF, Source 2
• Tie CB EMSB-TIE-B is
CLOSED
• Breaker MAIN CB-EMSB-1 is
OPEN
• ATS’s in E
1 Gen ON, Motors OFF, Normal
• Generators EG-8, EG-10, EG- 9, and NG-11 are OFF
• ATS’s in E
• Tie CB EMSB-TIE-B is OPEN
ERS#: 1072260 09/17/21 REV 0 PAGE 5
2.0 EXECUTIVE SUMMARY
2.1 Short Circuit Analysis
• Devices within the scope of the project were found to be under-rated (those where the calculated available short circuit current exceeds their interrupting rating) and require replacement. Please refer to Sections 3.1 and 4.1 for more detailed information.
2.2 Protective Device Coordination
• Although there are cases of unavoidable non-selectivity, the as-found device settings indicated in this report should provide adequate system protection and coordination. Please refer to Sections 3.2 and 4.2 for more detailed information.
• The as-found device settings provided in this report should provide adequate system protection and coordination. However, there are cases of undersized feeder cables. Please refer to Sections 3.2 and 4.2 for more detailed information.
2.3 Arc Flash Evaluation
• The arc flash hazard calculations within this study are based on the as-found settings. As such, all protective devices must be verified to be still set as per this study prior to the application of the corresponding arc flash hazard labels. No work should be done on or around any energized equipment without the use of a proper level of PPE and adequate training. Please refer to Sections 3.3 and 4.3 for more detailed information.
ERS#: 1072260 09/17/21 REV 0 PAGE 6
3.0 ANALYSIS AND METHODS
3.1 Short Circuit Analysis
The SKM System Analysis, Inc. PowerTools for Windows A_FAULT program used for the analysis complies with the ANSI/IEEE C37 standards for calculation of short circuit fault currents. It offers separate solutions for low, medium and high voltage systems and for symmetrical, momentary and interrupting calculations as defined in the standards.
A computer model of the electrical system was created based on the data obtained for the analysis. The model was input into the software program and analyzed to determine the maximum short circuit fault current levels throughout the system. These calculated short circuit currents were then compared to the equipment short circuit ratings to determine the adequacy of the equipment ratings. If the calculated short circuit fault current1 exceeded the rating of the equipment, then the equipment failed the short circuit device evaluation and was flagged as “Fail” within the device evaluation tables in the appendix.
When evaluating the ability of low voltage protective devices to interrupt available fault duties, two types of systems are common; fully rated or series rated.
A fully rated system is one in which each and every overcurrent protective device has a short circuit rating that meets or exceeds the actual short circuit fault current available at the device.
A series rated system utilizes special elevated (series) ratings for some of the equipment. Series ratings are special short circuit interrupting ratings assigned to tested & approved combinations of two or more overcurrent protective devices which are connected in series and in which the rating of the downstream device(s) in the combination is less than the series rating. The elevated series rating is essentially based on the two devices operating simultaneously and sharing the interrupting energies; thereby facilitating an elevated short circuit rating.
To conform with the National Electrical Code, Section 110-22, where circuit breakers or fuses are applied in compliance with the series combination ratings marked on the equipment by the manufacturer, equipment enclosures must be legibly marked in the field to indicate the equipment has been applied with a series combination rating.
Complete short circuit analysis input & output reports as well as device evaluation tables are contained in the Appendices.
1 Including any applicable X/R multiplication factors
ERS#: 1072260 09/17/21 REV 0 PAGE 7
3.2 Protective Device Coordination
The intent of the protective device coordination analysis is to evaluate, and if necessary, recommend overcurrent protective device setting adjustments to yield optimum power system performance, reliability and safety. In many cases the above goals conflict with one another and compromises must be made based on system criticality and facility operating philosophy. Where necessary, the recommended settings were chosen to maximize system reliability while minimizing conditions of jeopardized system selectivity.
As stated in ANSI/IEEE Standard 242-2001, "Whether minimizing the risk of equipment damage or preserving service continuity is the more important objective depends upon the operating philosophy of the particular industrial plant or commercial business." Regardless, the equipment applications within the facility have been compared with acceptable practices and industry standards.
System selectivity is most often illustrated by the use of Time-Current Curves (TCC’s) which graphically illustrate the overcurrent responses of protective devices to overcurrent events. The specific manufacturer specified time-current characteristics of the overcurrent devices are plotted on logarithmic graphs.
Other electrical equipment characteristics such as, but not limited to, transformer damage, transformer inrush, motor starting and generator decrement can also be plotted on the same graphs to help with the analysis.
Protective device setting tables and TCC’s for the system studied are included in the Appendices.
3.3 Arc Flash Evaluation
Arc flash evaluations are used in conjunction with the client’s/facility operator’s safety policy to determine the required personal protective equipment (PPE) when working on or near energized equipment. Many electrical injuries are burns that are the result from exposure to the energies liberated during an arcing fault. The burns are typically second and third degree in nature and are often fatal.
NFPA 70-2017, National Electrical Code, requires equipment to be field marked to indicate where a flash hazard exists:
110.16 Arc-Flash Hazard Warning. Electrical equipment, such as switchboards, switchgear, panelboards, industrial control panels, meter socket enclosures, and motor control centers, that is in other than dwelling units, and is likely to require examination, adjustment, servicing, or maintenance while energized, shall be field or factory marked to warn qualified persons of potential electric arc flash hazards. The marking shall meet the requirements in 110.21(B) and shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.
ERS#: 1072260 09/17/21 REV 0 PAGE 8
NFPA 70E-2021, Standard for Electrical Safety in the Workplace, states the following:
130.5 Arc Flash Risk Assessment.
(A) General. An arc flash risk assessment shall be performed:
(1) To identify arc flash hazards
(2) To estimate the likelihood of occurrence of injury or damage to health and the potential severity of injury or damage to health
(3) To determine if additional protective measures are required, including the use of
PPE
(G) Incident Energy Analysis Method. The incident energy exposure level shall be based on the working distance of the employee’s face and chest areas from a prospective arc source for the specific task to be performed. Arc-rated clothing and other PPE shall be used by the employee based on the incident energy exposure associated with the specific task. Recognizing that incident energy increases as the distance from the arc flash decreases, additional PPE shall be used for any parts of the body that are closer than the working distance at which the incident energy was determined.
The incident energy analysis shall take into consideration the characteristics of the overcurrent protective device and its fault clearing time, including its condition of maintenance.
The incident energy analysis shall be updated when changes occur in the electrical distribution system that could affect the results of the analysis. The incident energy analysis shall also be reviewed for accuracy at intervals not to exceed 5 years.
OSHA regulations represent the other major source of standards that apply to arc flash hazards. The primary regulations are in 29CFR 1910 Subparts I, and S. These can be broken down into three general areas, hazard identification and PPE selection, training, and proficiency.
1910.132(d) Hazard assessment and equipment selection
The employer shall assess the workplace to determine if hazards are present, or are likely to be present, which necessitate the use of personal protective equipment (PPE).
If such hazards are present, or likely to be present, the employer shall: Select, and have each affected employee use, the types of PPE that will protect the affected employee from the hazards identified in the hazard assessment; Communicate selection decisions to each affected employee; and, Select PPE that properly fits each affected employee.
The employer shall verify that the required workplace hazard assessment has been performed through a written certification that identifies the workplace evaluated; the person certifying that the evaluation has been performed; the date(s) of the hazard assessment; and, which identifies the document as a certification of hazard assessment.
1910.335(a)(1)(i) Personal Protective Equipment
Employees working in areas where there are potential electrical hazards shall be provided with, and shall use, electrical protective equipment that is appropriate for the specific parts of the body to be protected and for the work to be performed.
ERS#: 1072260 09/17/21 REV 0 PAGE 9
1910.132(f) Training
The employer shall provide training to each employee who is required by this section to use PPE. Each such employee shall be trained to know at least the following: When PPE is necessary; What PPE is necessary; How to properly don, doff, adjust, and wear PPE; The limitations of the PPE; and, The proper care, maintenance, useful life and disposal of the PPE.
Each affected employee shall demonstrate an understanding of the training specified in paragraph (f)(1) of this section, and the ability to use PPE properly, before being allowed to perform work requiring the use of PPE.
1910.132(f)(3) Proficiency & Retraining
When the employer has reason to believe that any affected employee who has already been trained does not have the understanding and skill required by paragraph (f)(2) of this section, the employer shall retrain each such employee. Circumstances where retraining is required include, but are not limited to, situations where: Changes in the workplace render previous training obsolete; or Changes in the types of PPE to be used render previous training obsolete; or Inadequacies in an affected employee's knowledge or use of assigned PPE indicate that the employee has not retained the requisite understanding or skill.
The employer shall verify that each affected employee has received and understood the required training through a written certification that contains the name of each employee trained, the date(s) of training, and that identifies the subject of the certification.
The calculations used in this study comply with NFPA 70E requirements in that the incident energy levels and arc flash boundaries are calculated and the corresponding level of PPE required is identified. The results of the arc-flash calculations are based on the values of fault current magnitudes calculated in the short-circuit analysis and the associated clearing times of the over current protective devices as determined by the coordination study. A table summarizing the results for all locations evaluated is included in the Appendix.
ERS#: 1072260 09/17/21 REV 0 PAGE 10
3.3.1 Basis for Arc Flash Evaluation
The IEEE Std 1584-2018 IEEE Guide for Performing Arc-Flash Hazard Calculations was used as the calculation basis for the equipment within the scope of this project. This standard contains calculation methods developed through testing by several sources to determine boundary distances for unprotected personnel and the incident energy at the working distance for qualified personnel working on energized equipment. The incident energy level can be used to determine the proper PPE required for personnel.
The equations developed in the IEEE standard assess the arc flash hazard based on the available short circuit fault current, system voltage, clearing time, working distance, equipment type, enclosure dimensions, bus gaps and electrode configuration.
Enclosure dimensions, bus bar gaps and electrode configurations were selected based on equipment type, as recommended in Annex C & G of IEEE Std 1584-2018, and are summarized in the table below.
Voltage Equipment Type H x W (in)
Depth (in)
Gap (mm)
Electrode Configuration
15kV Switchgear 45 x 30 30 152 HCB
15kV MCC 36 x 36 36 152 HCB
5kV Switchgear 36 x 36 36 104 HCB
5kV MCC 26 x 26 26 104 HCB
≤600V Switchgear 20 x 20 20 32 HCB
≤600V MCC 20 x 20 >8 25 VCBB
≤600V Panel 20 x 20 >8 25 VCBB
≤600V J-Box/Disc 20 x 20 >8 25 HCB
IEEE Std 1584-2018 describes five different electrode/conductor configurations as follows:
• VCB: vertical conductors inside a metal enclosure
• VCBB: vertical conductors terminated in an insulating barrier inside a metal enclosure
• HCB: horizontal conductors inside a metal enclosure
• VOA: vertical conductors in open air
• HOA: horizontal conductors in open air
ERS#: 1072260 09/17/21 REV 0 PAGE 11
Results from the short circuit and coordination study yield the fault duties and clearing times at locations where arc flash evaluations are to be performed. Per IEEE Std 1584, a maximum arc time of two seconds is utilized to limit incident energy values. The two-second value is intended to simulate the likely egress time of a worker exposed to an electrical arc.
The SKM PowerTools for Windows software uses these techniques to determine the required PPE for energized work, the flash boundary and the incident energy at various distances from the location. Typical ATPV values for protective equipment is used if site-specific manufacturer’s data is not available.
For locations where there is an elevated incident energy level, either energized work should be prohibited or extension tools (i.e. hot stick, remote controls…) should be used to distance personnel from the potential arc point. The incident energy at the working distance dictates the required PPE.
ERS#: 1072260 09/17/21 REV 0 PAGE 12
3.3.2 Protective Equipment Description
Depending upon the arc thermal levels present at a location, different levels of PPE are required to help facilitate safe work. The following information is based on PPE descriptions per the NFPA 70E standard.
Where site specific PPE descriptions and ATPV information is not available, the data in this table is used for the evaluation.
TABLE 3.3.2 ARC FLASH HAZARD RISK/PPE LEVELS
INCIDENT
ENERGY
(cal/cm2)
PPE
DESCRIPTION
0-1.2 Long sleeve shirt & pants or coverall (nonmelting or untreated natural fiber), safety glasses/goggles, leather gloves, hearing protection
1.2-12 Arc-rated (AR) long sleeve shirt & AR pants or AR coverall or AR flash suit, AR face shield & AR balaclava or AR flash suit hood, hard hat, safety glasses/goggles, hearing protection, leather gloves, leather footwear
>12 Arc-rated (AR) long sleeve shirt & AR pants or AR coverall and/or AR flash suit, AR flash suit hood, AR gloves, hard hat, safety glasses/goggles, hearing protection, leather footwear
ERS#: 1072260 09/17/21 REV 0 PAGE 13
3.3.3 Arc Flash Hazard Labels
Based on the PPE descriptions detailed above, all resulting arc flash hazard labels will be similar to that as shown in Figure 3.3.3 below.
FIGURE 3.3.3 TYPICAL ARC FLASH HAZARD LABEL
ERS#: 1072260 09/17/21 REV 0 PAGE 14
4.0 FINDINGS AND RECOMMENDATIONS
4.1 Short Circuit Analysis
Based on the model created, a fault case was run and the available short circuit fault duties were compared to the short circuit ratings of the devices studied.
Devices were found to be under-rated as summarized in Table 4.1 below and as indicated as “Fail” on the attached device evaluation tables in the Appendix.
Consequently, these devices must be replaced with suitably rated devices.
Complete short circuit analysis input & output reports as well as device evaluation tables are contained in the Appendices.
TABLE 4.1 – DEVICE EVALUATION RESULT SUMMARY – FAILURES
LOCATION MFR TYPE
RATING
(kA) ISC (kA)
% OVER-
DUTIED
Minimum Recommended kA Rating
1 (B.1) K-1 N/A Panel 10 11.11 111 % 18
2 (B.1) MH1 Siemens BQD Breaker 14 29.06 208 % 35
3 (B.1) MH2 Siemens BQD Breaker 14 34.86 249 % 42
4 (B.1) MH4 Siemens BQD Breaker 14 29.06 208 % 35
5 (B.1) PB81DA N/A Panel 10 13.19 132 % 18
6 (B.1) PB81DB N/A Panel 10 13.9 139 % 18
7 (B.1) PB81DE N/A Panel 10 11.11 111 % 18
8 (B.1) PB8GA Cutler-Hammer EB Breaker 10 12.07 121% 18
9 (B.1) PB8GAA N/A Panel 10 11.2 112 % 18
10 (B.10) AE N/A Panel 10 10.81 108 % 18
(B.10) BLDG 10
PBLS1
Square D QD Breaker 25 26.09 104 % 35
12 (B.10) CU Square D QB Breaker 10 18.64 186 % 22
13 (B.10) CU 2 N/A Panel 10 12.19 122 % 18
14 (B.10) CU-D GE THHQB, THQD Breaker 22 35.16 160% 42
15 (B.10) G Square D Q2 Breaker 10 10.27 103 % 18
16 (B.10) LA N/A Panel 10 12.76 128 % 18
17 (B.10) LP-1 N/A Panel 10 17.82 178 % 22
18 (B.10) MP N/A Panel 10 10.41 104 % 18
19 (B.10) TELE N/A Panel 10 33.15 332 % 42
20 (B.12) 2ECA N/A Panel 10 11.3 113 % 18
21 (B.12) 2ECB N/A Panel 10 11.3 113 % 18
22 (B.12) 2EHEA N/A Panel 14 14.97 107 % 18
23 (B.12) 2EHEB N/A Panel 14 14.97 107 % 18
24 (B.12) 2NHA N/A Panel 14 16.11 115 % 22
25 (B.12) 2NHB N/A Panel 14 19.45 139 % 22
ERS#: 1072260 09/17/21 REV 0 PAGE 15
26 (B.12) 2NLC N/A Panel 10 10.15 102 % 18
27 (B.12) 3ECA N/A Panel 10 10.1 101 % 18
28 (B.12) 3ECB N/A Panel 10 10.1 101 % 18
29 (B.12) 3NHA N/A Panel 14 15.09 108 % 18
30 (B.12) 3NHB N/A Panel 14 18.01 129 % 22
31 (B.12) 4ECA N/A Panel 10 11.3 113 % 18
32 (B.12) 4ECB N/A Panel 10 11.3 113 % 18
33 (B.12) 4NHB N/A Panel 14 18.47 132 % 22
34 (B.12) 5ECA N/A Panel 10 10.1 101 % 18
35 (B.12) 5ECB N/A Panel 10 10.1 101 % 18
36 (B.12) 5NHB N/A Panel 14 17.16 123 % 22
37 (B.12) ATS-LS ATS Rating ATS 35 35.82 102 % 42
38 (B.12) ATS-ME ATS Rating ATS 16 51.58 322 % 65
39 (B.12) GEHC Cutler-Hammer HLD Breaker 35 42.75 122% 50
40 (B.12) GEHE
Cutler-Hammer KD, LD
Breaker 35 41.36 118% 50
41 (B.12) GNHB N/A Panel 14 18.28 131 % 22
42 (B.12) P11-D Cutler-Hammer EHD Breaker 14 17.67 126 % 22
43 (B.12) P12-D Cutler-Hammer EHD Breaker 14 16.99 121 % 22
44 (B.12) PEHEA Cutler-Hammer FD Breaker 25 25.11 100% 35
45 (B.15) 15B-GS-H N/A Panel 14 16.64 119 % 22
(B.7) LAUNDRY
DOCK
N/A Panel 10 10.33 103 % 18
47 (B1.A) PB31C N/A Panel 10 15.26 153 % 18
48 (B1.A) PB4GB Square D Q2 Breaker 10 13.17 132 % 18
49 (B1.D) 1L1 N/A Panel 10 14.84 148 % 18
50 (B1.D) 2L1 N/A Panel 10 14.07 141 % 18
51 (B1.D) ATS-HELSA ATS Rating ATS 35 35.74 102 % 42
(B1.D) ATS-XMRI-
ZENITH
ATS Rating ATS 10 31.39 314 % 42
53 (B1.D) DBLECA Siemens ED2, QJ Breaker 10 11.29 113% 18
54 (B1.D) DBLELSA Siemens ED2, QJ Breaker 10 11.33 113% 18
55 (B1.D) EH Cutler-Hammer GHB Breaker 14 21.51 154 % 35
56 (B1.D) GL1 N/A Panel 10 13.71 137 % 18
57 (B1.D) HECGB N/A Panel 18 24.82 138 % 35
58 (B1.D) HEE2A-B N/A Panel 14 23.25 166 % 35
59 (B1.D) HEEGB N/A Panel 18 24.91 138 % 35
60 (B1.D) HELSIA N/A Panel 14 15.99 114 % 18
61 (B1.D) L1 N/A Panel 10 14.44 144 % 18
62 ATS PH ATS Rating ATS 35 46.36 132 % 65
ERS#: 1072260 09/17/21 REV 0 PAGE 16
63 ATS-HECRS ATS Rating ATS 35 35.74 102 % 42
64 DS-MH3 Bussmann FRN-R Breaker 100+ 14.52 7 % Voltage Rating
65 DS-TS1
Cooper Bay-O-Net Current Sensing Fuse Link, 23kV
Fuse 1 3.51 351 % 5kA and Voltage Rating
66 DS-TS2
Cooper Bay-O-Net Current Sensing Fuse Link, 23kV
Fuse 1 3.51 351 % 5kA and Voltage Rating
67 EHLS GE TEY Breaker 14 47.39 339 % 65
68 PANEL M GE TEY Breaker 14 47.39 339 % 65
69 PEHEB GE TEY Breaker 14 29.7 212 % 35
70 PNL-EG-10 Square D RG Breaker 35 49.35 141 % 65
71 PNL-EG-4 Square D RG Breaker 35 41.98 120 % 50
72 PNL-EG-5 Square D NS1600N Breaker 50 52.01 104 % 65
DANGER! Energized work must not be performed on or near the under-rated equipment due to the inadequacy of the equipment to withstand potential fault currents. During a fault condition, the equipment may suffer mechanical failure and subject personnel to extremely hazardous and/or fatal conditions! As such, all under-rated equipment and equipment directly downstream of under-rated equipment will receive a special hazard label warning of such in lieu of the standard arc flash hazard label. A study update will be required upon the replacement of any of these under-rated devices.
(B.1) K-1, (B.1) MH2, (B.12) 2NLA, (B.12) 2NLD, (B.12) 3NLA, (B.12) 3NLB,
(B.12) 3NLC, (B.12) 4NLA, (B.12) 4NLB, (B.12) 5NLA, (B.12) 5NLB, (B.12)
GNHDP1, (B.12) GNHDP2, (B1.A) PB21A, and (B1.D) HEC2A were found to be “Marginal”. The calculated short circuit current levels at this location exceed 95% of the interrupting rating. Small changes to the system could result in equipment that will not adequately interrupt fault when required to do so.
Replacing the equipment or modifying the system configuration to reduce the available fault levels should be considered. Additional calculations and analysis should be performer when significant changes to the system are made.
4.2 Protective Device Coordination
The as-found device settings provided in this report should provide adequate system protection and coordination. However, there are a few cases of unavoidable non-selectivity between levels of protective devices as indicated by the overlapping of characteristic curves. These cases are inevitable due to the particular characteristics of each device. It is recommended to verify the settings as indicated in the Appendix and thoroughly test the devices to assure proper operation within the manufacturer’s tolerances.
ERS#: 1072260 09/17/21 REV 0 PAGE 17
WARNING! Since the arc flash incident energy calculations are based on the as-found settings as indicated in this study, all protective device settings must be verified prior to affixing of the arc flash hazard labels!
4.2.1 Undersized Cables
There are 7 feeder cable runs which are undersized. The cables feeding
(B.15) ATS-CATERPILLAR, (B.5) ATS7-ZENITH, (PIPE SHOP), ATS-
FP, (B1.D) ATS-HECB, (B1.D) ATS-HELSA, ATS-HECRS, & (B1.D)
ATS-XMRI-ZENITH are all undersized per the size of the immediate upstream protective device. It is recommended that either the breaker be resized or the cable size be increased accordingly pending on load requirements. Please refer to Table 4.2.1 for more details.
TABLE 4.2.1 UNDERSIZED FEEDER CABLES
FEEDER ID
EXISTING RECOMMENDED
CABLE SIZE/ BREAKER RTG CABLE SIZE/ -OR- BREAKER RTG
CBL-CATEPILLAR-E 1 – 3/0 (200A) 350 A 2 – 3/0 (400A) 200 A
CBL-ATS-7-E 1-500 (380A) 600 A 2 - 500 (760A) Set to 350 A
CBL-FP-E 1 – 3/0 (200A) 600 A 3 – 3/0 (600A) Set to 200 A
CBL-HECB 1 – #2 (115A) 400 A 2 – 3/0 (400A) Set to 100 A
CBL-HELSA-E 2 – 4/0 (460A) Set @ 1750 A Set to 500 A
CBL-HECRS 2 – 4/0 (460A) 800 A 2 - 500 (760A) Set to 500 A
CBL-XMRI-E 1 – 3/0 (200A) Set @ 640 A 3 – 3/0 (600A) Set to 200 A
4.3 Arc Flash Evaluation
The arc flash hazard calculations within this study are based on the as-found settings. As such, all protective devices must be verified to be still set and operational as per this study prior to the application of the corresponding arc flash hazard labels. No work should be done on or around any energized equipment without the use of a proper level of PPE and adequate training. An arc flash hazard summary/data table is included in the Appendix which provides full details of the analysis and the results.
IMPORTANT NOTE: The Arc flash hazard analysis methods and calculations used within this study are based on the protective devices operating as designed and being applied, maintained and tested as per the manufacturer’s specifications and accepted industry standards. Periodic maintenance and testing of the electrical equipment is highly recommended as endorsed by the NFPA-70B Standard, Recommended Standard for Electrical Equipment Maintenance, to confirm the safe and acceptable operation of the power system equipment and protective devices.
ERS#: 1072260 09/17/21 REV 0 PAGE 18
It is recommended that a site survey be performed during the next system outage, in order to collect inaccessible breakers and confirm existing settings that could not be field verified while energized. Breaker setting recommendations could not be provided for optimal system reliability, due to the number of assumed and blank breaker types/settings.
4.4 System-Wide Study
ERS#: 1072260 09/17/21 REV 0 PAGE 19
5.0 CLOSING REMARKS
The combination of the successful implementation/verification of the recommended/as-found protective device settings and the thorough testing of the protective devices will provide optimum power system reliability and performance.
Power System Studies have consistently proven to be an effective component for improving power system reliability and performance. Also, Arc Flash Studies are a vital component to the safe operation and maintenance of any electrical power system.
Hopefully the results and recommendations of this study will substantially increase the quality, reliability and safety of your electrical power system.
This study is intended for use by qualified individuals to help facilitate the installation, operation, maintenance and safety of the electrical power system as depicted. Modification of equipment, changes to system configuration, adjustment of trip-unit settings, and/or failure to properly maintain equipment may invalidate these results.
Any personnel who perform inspections, maintenance or testing while equipment is energized must receive training to understand the hazards identified in this report. This training should be based on relevant, NFPA and OSHA standards and recommendations.
For information regarding training (safety, arc flash, technical…), engineering, corrective and preventive maintenance services offered by Electrical Reliability Services, please call your local ERS Service Center Office.
APPENDIX 1
GLOSSARY OF TERMS
GLOSSARY OF TERMS
1.0 SHORT CIRCUIT STUDIES
1.1 Series Rating: A tested combination of protective devices that allow the use of protective devices in locations that exceed the nameplate rating by operation of a main or upstream protecting devices. Operation of the series rated combination allows the devices to share the interrupting energies.
2.0 COORDINATION STUDIES
2.1 Selectivity (also referred to as Coordination): Refers to the capacity or lack of capacity of a system to isolate a fault to the smallest portion of a system possible.
2.2 Time-Current Curve (TCC): A graphical representation of the operating characteristics of an over current protective device.
Typically shown on a log-log chart, this information details the operating time of the breaker over a range of currents.
2.3 Time-Current Curve Set: A group of TCC’s arranged to show the operating characteristics of a portion of an electrical system.
3.0 ARC FLASH EVALUATIONS
3.1 Arc-rated (AR) Clothing: Aramid (i.e. Dupont Nomex) or treated natural fiber (Indura or Proban) clothing of various types and weights that are resistant to ignition when exposed to an arc.
3.2 ATPV (Arc Thermal Performance exposure Value): A rating (in cal/cm2) given to PPE in terms of its ability to protect against the thermal energy resulting from an arcing fault. The incident energy from an arcing fault can be compared with the ATPV values to determine what amount (or number of layers) of PPE is required for safe energized work.
3.3 Electrical Hazard: A dangerous condition in which inadvertent or unintentional contact or equipment failure can result in shock, arc-flash burn, thermal burn, or blast.
3.4 Electrical Shock: Physical stimulation that occurs when electrical current passes through the body.
3.5 Energized: Electrically connected to or having a source of voltage.
3.6 Exposed (live parts): Capable of being inadvertently touched or approached nearer than a safe distance by a person. It is applied to parts that are not suitably guarded, isolated, or insulated.
3.7 Flash Boundary: An approach limit at a distance from a
prospective arc source with a person could receive a second degree burn (1.2cal/cm2) if an electrical arc flash were to occur.
3.8 Flash Suit: A complete arc-rated clothing and equipment system that covers the entire body, except for the hands and feet.
3.9 Incident Energy: The thermal energy measured in calories per square centimeter (cal/cm2) seen by a person or object as a result of exposure to an electric arc.
3.10 Incident Energy Analysis: A component of an arc flash risk assessment used to predict the incident energy of an arc flash for a specified set of conditions.
3.11 Natural Fiber Clothing: Long sleeve shirts and pants made of cotton or wool. This clothing is not flame-resistant (NON AR), but will char instead of melting like synthetic fibers.
3.12 PPE (Personal Protective Equipment): Clothing or tools used to protect personnel from potentially hazardous conditions while working.
3.13 Shock Hazard: A dangerous condition associated with the possible release of energy caused by contact or approach to live parts.
3.14 Working Distance: The dimension between the possible arc point and the head and body of the worker positioned in place to perform the assigned task.
APPENDIX 2
ENGINEERING BIBLIOGRAPHY & REFERENCE MATERIALS
ENGINEERING BIBLIOGRAPHY & REFERENCE MATERIALS
1. IEEE 1584-2002, IEEE Guide for Performing Arc-Flash Hazard Calculations.
2. IEEE 1584-2018, IEEE Guide for Performing Arc-Flash Hazard Calculations.
3. NFPA 70-2017, National Electrical Code.
4. ANSI/NFPA 70E-2021, Standard For Electrical Safety In The Workplace.
5. ANSI/IEEE Std 141-1993 (R 1999), IEEE Recommended Practice for Electrical Power Distribution for Industrial Plants (IEEE Red Book).
6. ANSI/IEEE Std 142-2007, IEEE Recommended Practice for Grounding of Industrial and Commercial Power Systems (IEEE Green Book).
7. IEEE STD 242-2001, IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book).
8. IEEE STD C37.010-2016, IEEE Application Guide for AC High-Voltage
Circuit Breakers Rated on a Symmetrical Current Basis.
9. IEEE STD C37.20.7-2007, IEEE Guide for Testing Medium-Voltage Metal-
Enclosed Switchgear for Internal Arcing Faults.
10. ANSI/IEEE Std 399-1997, IEEE Recommended Practice for Industrial and
Commercial Power Systems Analysis (IEEE Brown Book).
11. Beeman, D.L., INDUSTRIAL POWER SYSTEMS HANDBOOK, McGraw-Hill, 1955.
12. Bussmann/Eaton, Selecting Protective Devices Electrical Protection
Handbook, Bussmann/Eaton, 2014.
13. SKM Systems Analysis, Inc., POWER TOOLS ELECTRICAL
ENGINEERING SOFTWARE FOR WINDOWS, SKM Systems Analysis, 2018.
APPENDIX 3
UTILITY FAULT DUTY DATA
AMPS X/R AMPS X/R MVA X/R MVA X/R R1+jX1 R0+jX0 BASE MVA BASE VLL
3,414 2.427 2,449 2.549 24.9 kV
SIZE Cu/Al QTY/PH LENGTH
FAULT DUTY DATA VALUES GIVEN AT:
(If values given at point other than service entrance, complete conductor info is required - size, type, qty, length)
CONDUCTOR INFO
VOLTAGE
OR
PER UNIT
OR
3-PH SLG
VOLTAGE
UTILITY ID# kVA %Z
NA
3-PH SLG
WINDING CONFIGURATION
PRIMARY
NA
CAT# RATINGS
SECONDARY
VOLTAGE
PRIMARY SECONDARY
UTILITY SERVICE TRANSFORMER DATA
NA NANA
TAP SETTING INST
NEAREST UTILITY UPSTREAM PROTECTION DATA
FUSE
MFR
MFR CAT#
40/1
PHASE RELAY
CAT# TIME DIAL
MFR
G&W
Connor Altenburg 775-834-7082 Connor.Altenburg@nvenergy.comNV ENERGY
NOTES
Upstream of the ATS is a 140 Amp T-link fuse MFR: ABCHANCE CAT# M140TA23
FAULT DUTY DATA
NA NA
TAP SETTING INST
PROJECT/FACILITY CLIENT DATEERS JOB#
UTILITY INFORMATION
UTILITY FAULT DUTY & PROTECTION
DATA ACQUISITION FORM
UTILITY NAME CONTACT NAME CONTACT PH# CONTACT FX# CONTACT EMAIL
GROUND RELAY
AND/OR
NA
CT RATIO
NA
TIME DIAL
NA
CT RATIO
NA
SERVICE XFMR PRISERVICE ENTRANCE OTHER: _______________________________________________________
DELTA WYE DELTA WYE
SERVICE XFMR SEC
APPENDIX 4
SHORT CIRCUIT FAULT ANALYSIS INPUT REPORT
DAPPER Fault Analysis Input Report (English)
Project: 1072260 VA Hospital Model R0 (c)
Triumph Electric
VA Hospital
1072260
Normal
Utilities
Contribution
From Name
Bus
Name
In/Out
Service
Nominal
Voltage
-------- Contribution Data -------- PU (100 MVA Base)
X PUR PUX/RUnitsDuty
UTIL (B.8) PQ-SWITCH 24,900 Amps 2.43In 3,414
SLG:
3P:
Amps 2.55 1.3880.520
Pos:
Zero:2,449
0.259 0.628
Generators
Contribution
From Name
Bus
Name
In/Out
Service
Nominal
Voltage
-------- Contribution Data --------
Base kVA X" X/R
PU (100 MVA Base)
R PU X PU
EG-10 480PNL-EG-10 1,875.00 20.00 0.27 5.33In
0.27
5.330.27
0.10
0.10
0.10
20.00
20.00 5.33
EG-4 480PNL-EG-4 937.50 20.00 0.53 10.67In
0.53
10.670.53
0.10
0.10
0.10
20.00
20.00 10.67
EG-5 208PNL-EG-5 562.50 20.00 0.89 17.78In
0.89
17.780.89
0.10
0.10
0.10
20.00
20.00 17.78
EG-8 480PNL-EG-8 937.50 20.00 0.53 10.67In
0.53
10.670.53
0.10
0.10
0.10
20.00
20.00 10.67
EG-9 208PNL-EG-9 562.50 20.00 0.89 17.78In
0.89
17.780.89
0.10
0.10
0.10
20.00
20.00 17.78
GEN #6 0GEN-#6 1,250.00 20.00 0.00 0.00Out
0.00
0.000.00
0.10
0.10
0.10
20.00
20.00 0.00
Contribution
From Name
Bus
Name
In/Out
Service
Nominal
Voltage
-------- Contribution Data --------
Base kVA X" X/R
PU (100 MVA Base)
R PU X PU
GEN1 480GEN-1 750.00 20.00 0.67 13.33In
0.67
13.330.67
0.10
0.10
0.10
20.00
20.00 13.33
GEN2 208PNL-GEN2 312.00 20.00 1.60 32.05In
1.60
32.051.60
0.10
0.10
0.10
20.00
20.00 32.05
GEN3 480.PNL-GEN3 300.00 20.00 1.67 33.33In
1.67
33.331.67
0.10
0.10
0.10
20.00
20.00 33.33
GEN7 208PNL-GEN7 113.00 20.00 4.42 88.50In
4.42
88.504.42
0.10
0.10
0.10
20.00
20.00 88.50
NG-11 208PNL-NG-11 562.50 20.00 0.89 17.78In
0.89
17.780.89
0.10
0.10
0.10
20.00
20.00 17.78
Motors
Contribution
From Name
Bus
Name
In/Out
Service
Nominal
Voltage
--------- Contribution Data --------
Base kVA Xd" X/R
PU (100 MVA Base)
R PU X PU
# of
Motors
(B.1) HHWP-LUMP PNL-HHWP-LUMP 480 40.11 0.1507 4.90 76.717 375.834In1
AHU-1 DS-AHU-1 480 20.05 0.1507 4.90 153.433 751.669In1
ELEV-1 DS-ELEV-1 480 20.05 0.1507 4.90 153.433 751.669In1
MTR-BEMCC (B.12) BEMCC 480 30.08 0.1507 4.90 102.289 501.112In1
MTR-CHILL1 CHILL1 480 230.62 0.1507 4.90 13.342 65.363In1
MTR-CHILL2 CHILL2 480 230.62 0.1507 4.90 13.342 65.363In1
MTR-CHILL3 MTR CHILL3 480 230.62 0.1507 4.90 13.342 65.363In1
MTR-CHILLER (B1.D) DS-CHILLER 480 90.24 0.1507 4.90 34.096 167.038In1
Bus
Name
In/Out
Service
Nominal
Voltage
--------- Contribution Data --------
Base kVA Xd" X/R
PU (100 MVA Base)
R PU X PU
# of
Motors
MTR-CHP4 (B.8) MCCA 480 15.04 0.1507 4.90 204.577 1,002.225In1
MTR-CHP5 (B.8) MCCA 480 25.07 0.1507 4.90 122.747 601.335In1
MTR-ELEV (B.15) PNL-G 208 15.04 0.1507 4.90 204.577 1,002.225In1
MTR-ELEV P1 MTR ELEV P1 208 15.04 0.1507 4.90 204.577 1,002.225In1
MTR-ELEV2 ELEV2 208 40.11 0.1507 4.90 76.717 375.834In1
MTR-ELEV-2 S9 ELEV-2 S9 480 75.20 0.1507 4.90 40.915 200.445In1
MTR-ELEV3 ELEV3 208 60.16 0.1507 4.90 51.144 250.556In1
MTR-ELEV-3 P12 MTR ELEV-3 P12 480 40.11 0.1507 4.90 76.717 375.834In1
MTR-ELEV4 ELEV4 208 35.09 0.1507 4.90 87.676 429.525In1
MTR-ELEV-P1 (B1.A) DS-ELEV1-P1 208 15.04 0.1507 4.90 204.577 1,002.225In1
MTR-FP PNL-FP 208 30.08 0.1507 4.90 102.289 501.112In1
MTRI-(B.1) ELEV-P5 (B.1) ELEV-P5 208 40.11 0.1507 4.90 76.717 375.834In1
MTR-P10-D (B1.D) P10-D 480 50.13 0.1507 4.90 61.373 300.668In1
MTR-P11-D (B.12) P11-D 480 40.11 0.1507 4.90 76.717 375.834In1
MTR-P12-D (B.12) P12-D 480 40.11 0.1507 4.90 76.717 375.834In1
MTR-P9-D (B1.D) P9-D 480 50.13 0.1507 4.90 61.373 300.668In1
Bus
Name
In/Out
Service
Nominal
Voltage
--------- Contribution Data --------
Base kVA Xd" X/R
PU (100 MVA Base)
R PU X PU
# of
Motors
MTR-S10-D (B.12) S10-D 480 75.20 0.1507 4.90 40.915 200.445In1
MTR-S6-D (B1.D) S6-D 480 40.11 0.1507 4.90 76.717 375.834In1
MTR-S7-D (B1.D) S7-D 480 40.11 0.1507 4.90 76.717 375.834In1
MTR-S9-D (B.12) S9-D 480 75.20 0.1507 4.90 40.915 200.445In1
Cables
Cable
Name
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
(B.10) MBP
(B.10) UPS
2 5 500 PVC Pos:
Zero:
0.1699 0.2693
0.6628
(B.10) CBL-UPS In
0.5351
MagneticCopper
(B.12) GNHDP1
PRI XF-T1
2 9 350 PVC Pos:
Zero:
0.0738 0.0959
0.2361
(B.12) CBL-XF-T1 In
0.2326
MagneticCopper
SEC (B.5) XF-LDB
LDB
1 10 300 PVC Pos:
Zero:
1.0725 1.1395
2.8060
(B.5) CBL-LDB In
3.3793
MagneticCopper
HDB
PRI (B.5) XF-LDB
1 10 4/0 PVC Pos:
Zero:
0.2778 0.2157
0.5313
(B.5) CBL-XF-LDB In
0.8754
MagneticCopper
Name
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
PNL-PB11A
PNL-PB12A
1 150 1/0 PVC Pos:
Zero:
44.3787 18.7223
46.0776
(B.6) CBL-PB12A In
139.8622
MagneticCopper
SCDB1
PNL-PB12B
1 150 1/0 PVC Pos:
Zero:
44.3787 18.7223
46.0776
(B.6) CBL-PB12B In
139.8622
MagneticCopper
SCDB1
PNL-PB12C
1 150 1/0 PVC Pos:
Zero:
44.3787 18.7223
46.0776
(B.6) CBL-PB12C In
139.8622
MagneticCopper
DS-XF-T2
PRI XF-T2
1 1 750 EPR Pos:
Zero:
0.0000 0.0000
0.0000
(B1.D) CBL-XF-T2 In
0.0000
Non-MagneticCopper
(B.12) 4NLC
(B.12) 4NLD
1 5 4/0 PVC Pos:
Zero:
0.7396 0.5744
1.4146
CB-4NLD In
2.3310
MagneticCopper
(B.10) UPS
(B.10) BATT.1
1 25 4/0 PVC Pos:
Zero:
3.6982 2.8719
7.0729
CBL BATT.1 In
11.6552
MagneticCopper
(B.10) CU-D JB
(B.10) CU-D
2 5 500 PVC Pos:
Zero:
0.1699 0.2693
0.6628
CBL C-UD In
0.5351
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
(B.10) MBP
(B.10) CU-D JB
2 5 500 PVC Pos:
Zero:
0.1699 0.2693
0.6628
CBL MBP In
0.5351
(B.8) ECB2
(B.15) HMSB15
3 256 400 PVC Pos:
Zero:
1.3185 1.8148
4.4667
CBL-(B.15)
HMSB15
In
4.1556
MagneticCopper
(B.8)T1
(B.8) ECB2
3 5 500 PVC Pos:
Zero:
0.0213 0.0337
0.0830
CBL-(B.8) ECB2 In
0.0670
MagneticCopper
(B1.A) DB2
(B1.A) ELEV P1
1 100 2 PVC Pos:
Zero:
46.6901 13.5216
33.2840
CBL-(B1.A) ELEV
P1
In
147.1431
MagneticCopper
(B1.D) MRS
(B1.D) MS
4 5 500 PVC Pos:
Zero:
0.0160 0.0253
0.0622
CBL-(B1.D) MS In
0.0502
(B.8) PQ-SWITCH
JB-A1
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0030 In
0.0010
Non-MagneticCopper
JB-A1
(B.8) T1-LBSW
1 150 1/0 EPR Pos:
Zero:
0.0031 0.0012
0.0031
CBL-0031 In
0.0049
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
(B.8) PQ-SWITCH
JB-B1
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0032 In
0.0010
Non-MagneticCopper
JB-B1
(B.8) T1-LBSW
1 150 1/0 EPR Pos:
Zero:
0.0031 0.0012
0.0031
CBL-0033 In
0.0049
JB-A1
JB-A2
1 135 1/0 EPR Pos:
Zero:
0.0028 0.0011
0.0028
CBL-0034 In
0.0044
Non-MagneticCopper
JB-A2
JB-A4
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0035 In
0.0010
Non-MagneticCopper
JB-A2
JB-A3
1 110 1/0 EPR Pos:
Zero:
0.0023 0.0009
0.0023
CBL-0036 In
0.0036
Non-MagneticCopper
JB-B1
JB-B2
1 135 1/0 EPR Pos:
Zero:
0.0028 0.0011
0.0028
CBL-0037 In
0.0044
JB-B2
JB-B3
1 110 1/0 EPR Pos:
Zero:
0.0023 0.0009
0.0023
CBL-0038 In
0.0036
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
JB-B2
JB-B4
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0039 In
0.0010
Non-MagneticCopper
JB-A3
(B.1-1A) T5-LBSW
1 100 1/0 EPR Pos:
Zero:
0.0021 0.0008
0.0021
CBL-0040 In
0.0033
Non-MagneticCopper
JB-B3
(B.1-1A) T5-LBSW
1 100 1/0 EPR Pos:
Zero:
0.0021 0.0008
0.0021
CBL-0041 In
0.0033
JB-A3
(B.10) T7-LBSW
1 270 1/0 EPR Pos:
Zero:
0.0056 0.0022
0.0056
CBL-0042 In
0.0089
Non-MagneticCopper
JB-B3
(B.10) T7-LBSW
1 270 1/0 EPR Pos:
Zero:
0.0056 0.0022
0.0056
CBL-0043 In
0.0089
Non-MagneticCopper
JB-A3
(B.1-1A) T4-LBSW
1 120 1/0 EPR Pos:
Zero:
0.0025 0.0010
0.0025
CBL-0044 In
0.0039
Non-MagneticCopper
JB-B3
(B.1-1A) T4-LBSW
1 120 1/0 EPR Pos:
Zero:
0.0025 0.0010
0.0025
CBL-0045 In
0.0039
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
JB-A4
(B.1D) TN-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0046 In
0.0007
Non-MagneticCopper
JB-B4
(B.1D) TN-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0047 In
0.0007
Non-MagneticCopper
JB-A4
(B.1D) T3-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0048 In
0.0007
Non-MagneticCopper
JB-B4
(B.1D) T3-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0049 In
0.0007
JB-A4
(B.1D) T2-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0050 In
0.0007
Non-MagneticCopper
JB-B4
(B.1D) T2-LBSW
1 20 1/0 EPR Pos:
Zero:
0.0004 0.0002
0.0004
CBL-0051 In
0.0007
Non-MagneticCopper
JB-B4
JB-B5
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0052 In
0.0010
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
JB-B5
(B.12) TS1-LBSW
1 70 1/0 EPR Pos:
Zero:
0.0014 0.0006
0.0015
CBL-0053 In
0.0023
JB-B5
(B.12) TS2-LBSW
1 70 1/0 EPR Pos:
Zero:
0.0014 0.0006
0.0015
CBL-0054 In
0.0023
Non-MagneticCopper
JB-A4
JB-A5
1 30 1/0 EPR Pos:
Zero:
0.0006 0.0002
0.0006
CBL-0055 In
0.0010
Non-MagneticCopper
JB-A5
(B.12) TS2-LBSW
1 70 1/0 EPR Pos:
Zero:
0.0014 0.0006
0.0015
CBL-0056 In
0.0023
Non-MagneticCopper
JB-A5
(B.12) TS1-LBSW
1 70 1/0 EPR Pos:
Zero:
0.0014 0.0006
0.0015
CBL-0057 In
0.0023
(PIPE SHOP) DB9
(B.1) PB8AGB
1 65 2 PVC Pos:
Zero:
30.3486 8.7891
21.6346
CBL-0390 In
95.6430
MagneticCopper
(B1.D) MRS
ATS-HECRS N
2 40 4/0 PVC Pos:
Zero:
0.5556 0.4314
1.0625
CBL-0422 In
1.7509
From Bus
To Bus
Qty
/Ph
Length
Feet
------ Cable Description ------
Size Cond. Type Duct Type Insul
Per Unit (100 MVA Base)
R pu jX pu
In/Out
Service
(B1.D) ATS-HECB
(B.1D) HECB2C
1 40 2…
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