CEI085065 - LYONS VA - POWER SYSTEM STUDY 6-1-09.pdf

Power System Study

For

Lyons VA Healthcare

Lyons, New Jersey

REF. Triad JOB# CEI085065

ISSUED: 3/26/09

REVISED 6-1-09

Performed by:

TRIAD CONSULTING ENGINEERS INC.

ENGINEERS • DESIGNERS • CONSTRUCTION MANAGERS

2740 RT 10 WEST, MORRIS PLAINS, N.J. 07950

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

Power System Study for

Lyons VA Healthcare

Philip M. Grenci New Jersey PE#24GE037882

Issued: 3/26/09

REVISED 6/1/09

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

Electrical Power System Study – LYONS VA

INDEX

SECTION SUBJECT

1 STUDY SUMMARY

1.1 Purpose

1.2 Scope

1.3 Methods

1.4 Study Data and Assumptions

1.5 Summary of Findings and Recommendations

2 POWER SYSTEM STUDY

2.1 Introduction

2.11 Objective of Power System Study

2.12 Model/Case Development Using Computer Software

2.2 Short Circuit Analysis

2.21 General

2.22 Findings and Recommendations

2.3 Coordination Analysis

2.31 Introduction

2.32 Protection Principles

2.33 Coordination Concepts and Principles

2.34 Findings and Recommendations

2.35 Time Current Curve Drawings

3 COMPUTER OUTPUT REPORTS AND RESULT SUMMARY

3.1 Short Circuit Output Report

3.2 Device Evaluation Results

4 CIRCUIT BREAKER/RELAY SETTINGS

4.1 Circuit Breaker/Relay Tables

5 CASE SINGLE LINE DIAGRAMS

6 STANDARDS AND REFERENCES

6.1 SKM Short Circuit Analysis per ANSI/IEEE Standards

7 PRODUCT DATA AND FIELD DOCUMENTATION

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

1.0 STUDY SUMMARY

1.1 Purpose

a. Perform a detailed power system study (short circuit and coordination study).

b. The short circuit study was performed to determine the maximum short circuit duties and the ability of the existing equipment to handle these fault levels safely based on ANSI/IEEE standards. The coordination study was performed to determine the optimal protective device settings from the utility and backup sources, if applicable, down through the low voltage distribution and largest branch circuits to increase system reliability and reduce hazards in the workplace.

1.2 Scope

a. A power system study was performed for Lyons VA Medical Center which includes the emergency system down to the three (3) motor control centers. Additionally, motors over 50HP were included, as well as PP-1 on MCC-136-C. The power system study consists of a short circuit and protective device coordination analysis for the aforementioned electrical distribution system at this site. Through this study, recommended settings were provided for the best possible coordination and selectivity.

1.3 Methods

a. The power system study was performed per ANSI/IEEE standards.

1.4 Study Data and Assumptions

If exact data were not available, assumptions were made based on industry standards and typical equipment configurations.

1.5 Summary of Findings and Recommendations

a. SHORT CIRCUIT RESULTS:

Findings: The results of the short circuit study indicated that all of the equipment included in this study are properly rated for the available short circuit faults in the system. However, EDP-1 and EDP-2 have available fault currents of approximately 42kA if all loads are fed from the same generator. Four (4) breakers in these switchboards are rated 42kAIC.

Recommendations: Replace the four (4) Siemens HED4 (42kA) breakers with 50kA minimum rated breakers. The bus bracing for the EDP panels is currently rated for 65kA. The study herein was updated to reflect the 4 new replacement breakers with 65kAIC ratings. It was reported that the four (4) breakers will be replaced based on the findings of the initial report issue.

b. COORDINATION:

Findings: Coordination and some degree of selectivity exist for the electrical infrastructure analyzed. The large proportion of adjustable breakers was able to provide coordination within the system.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

Recommendations: Utilize the circuit breaker settings recommended in this study.

c. GENERAL RECOMMENDATIONS:

An arc flash study should be performed on this system to determine hazard category levels, incident energy levels, and the appropriate PPE required. This study is now required per OSHA and NFPA 70E. In addition, labels with data resulting from the study should be applied to applicable electrical equipment per NEC 2005 Article 110.16.

d. STUDY SINGLE LINE DIAGRAMS:

Study single line diagrams were generated by the program based on design drawings and vendor supplied shop drawings/ submittals and data as listed above. This data were entered to reflect the key plant electrical system. The study drawings include the existing system configuration as found with new recommended settings for all of the protective devices and short circuit levels.

The drawings contain the necessary information required to perform the study as well as information valuable for facility use.

NOTE: ALL ATTEMPTS SHALL BE MADE TO DE-ENERGIZE EQUIPMENT PRIOR TO

WORKING ON EXPOSED LIVE EQUIPMENT OR PARTS.

CAUTION NOTE: It is up to the Owner to provide safety procedures and training for employees that may be exposed to live parts. It is also highly recommended that the Owner implement proper medical emergency procedures for any electrical burn or injury no matter how insignificant it may appear. On-site and/or off-site medical personnel that serve this site should be trained in all aspects of electrical injuries.

STUDY ASSUMPTIONS: This study is based on available information provided to TRIAD CEI at the time of study preparation. This includes but is not limited to: equipment vendor shop drawings, utility data, engineering documents, field data provided by others and manufacturer’s data. TRIAD CEI shall not be responsible for any unreported field changes, unreported equipment substitutions, errors and omissions, missing data, improper installations, disregard for safety procedures/recommendations or for personnel that are either unqualified or negligent. Study is based on observations for readily accessible installations and reasonable assumptions for missing data that is either not posted on a nameplate or can not be obtained safely due to a continuously operating system. TRIAD CEI takes no responsibility for any hidden or obscured installations or installations not conforming to the latest local, state or national codes or that which is not installed in accordance with manufacturer’s instructions or good workmanship practice.

TRIAD CEI takes no responsibility for any injury or death resulting from the malfunction, tampering, or improper setting of these devices and/or systems described above as well as the improper or lack of use of the maintenance mode system. This study supersedes all studies and results previously submitted by TRIAD CEI. Upon receiving this document all prior data is deemed inaccurate unless otherwise specified by TRIAD CEI.

TRIAD CEI takes no responsibility for the field setting of relays/devices or any errors that result from field setting.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

2.0 POWER SYSTEM STUDY

2.1 Introduction

A power system study was performed for the aforementioned electrical distribution system. Engineering drawings, manufacturers’ data and/or field surveys were reviewed and performed to extract information such as substation transformer sizes, circuit breaker and switchgear type and ratings. Feeder impedance data were based on IEEE Red book and NEC table 310-16.

The power system study basically consists of a short circuit and protective device coordination study. The short circuit study portion determines the maximum short circuit levels attainable and compares the calculated fault current to the rating of the equipment installed at this facility. The levels calculated at each equipment location determine if the equipment is sufficiently rated to safely clear these fault levels without harm to personnel and equipment. Recommended settings were provided for the best possible coordination and selectivity. Proper settings of protective devices reduce circuit tripping to the faulted equipment only.

This study provides results of calculations made based on the specified electrical distribution system. Based on these results, the study provides recommendations to properly protect and set equipment devices for improving personnel safety and system reliability.

2.11 Objective of Power System Study

The objective of this study was to develop a computer model of the main electrical system and to provide the following analyses in the order shown:

1. Short Circuit Analysis

2. Coordination Analysis

After the system model was developed, the analytical programs were executed and the results tabulated for ease of review. The results can then be used to identify limitations within the system and propose applicable recommendations for further actions.

The short circuit study determines the fault duties and compares them to the interrupting ratings of the existing protective devices where ratings are known.

The study single lines give the short circuit levels and recommended short circuit ratings at each equipment location. The short circuit study also determines equipment that requires either upgrade or replacement. The protective device coordination study determines the recommended settings for the new protective devices based on the short circuit study model. Recommendations are made to modify existing equipment and breaker settings to meet the short circuit requirements.

2.12 Model/Case Development Using Computer Software

Each case represents the basic philosophy that all impedances, short circuit contributions, and motor loads simulate the plant electrical system under a specific electrical configuration (e.g., ties open or closed, emergency conditions, etc.). One (1) system case was utilized to simulate the system under emergency conditions. The case is as follows:

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

CASE 1 – Emergency power only.

As-built system information (e.g., feeder sizes, feeder distances, fuse types, circuit breaker type, motor sizes, etc.) was obtained from shop drawings, design drawings, and/or additional documents provided to develop the MODEL. This information was used to prepare the short circuit analysis and coordination study and the final study single line diagrams. The computer model was generated using a series of analytical software programs. The system model allows in-depth case reviews of the system as well as expansions on future projects. The programs and system models are particularly suited for "What if?" scenarios.

After the system database or model has been established, it is easily updated.

Therefore the effects of system modifications and upgrades can be readily determined (e.g., system-wide impact of new loads, installation of on-site generation, utility system changes or modified motor re-acceleration assignment).

The program calculates the short circuit levels according to procedures recommended by ANSI/IEEE standards for low and high voltage breakers. Data are entered for both branch records and bus records. The branch records include information about feeders, transformers and fault contributions while the bus records are defined as nodes in the power system where there is a change of impedance. A branch record is defined as the connection between two bus records. Each bus record is assigned a name which is used as a reference point for entered and calculated information.

Execution of the computer programs requires data stored in the library files.

These library files contain impedance information described below for transformers and cables.

Transformer Impedance: The transformer impedance (%Z) used in the study is the actual nameplate data rather than the generic data stored in the library. The X/R ratio was derived from IEEE RP 399-1990, Recommended Practice for Power System Analysis, Fig. 153, page 316.

Cable Impedance: The impedances of all cables are included in the supplied library based on the IEEE and NEC ampacity tables. The resistance (R) and reactance (X) in ohms per thousand feet for each cable size was automatically entered into the system database from the supplied library. In cases where the exact length was not known, an approximate length was scaled from plot and floor plans. Typically, the cable impedance to individual low voltage motors was not entered into the impedance database directly. However, it is incorporated into the typical subtransient reactance values.

Motors: Typically entered in HP, KW or Amps. Reactance values are entered based on motor size and type based on ANSI/IEEE values.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

2.2 Short Circuit Study

2.21 General

The maximum three phase and unbalanced fault current levels were calculated at all buses in the electrical distribution system in accordance with ANSI/IEEE standards. The calculated fault current levels are compared against the supplied ratings of the equipment and devices installed on the respective substation buses to determine if they are properly applied.

Note: The calculated duties found in this study must be compared to the installed equipment ratings at this facility.

The calculated fault levels are used for coordination of the protective devices to assure that selectivity is achieved. The computer program was used to develop the system models and perform fault calculations.

2.22 Findings and Recommendations

Findings: The results of the short circuit study indicated that the three motor control centers, as well as the MTS’s and ATS’s are properly rated for the available short circuit faults in the system. However, EDP-1 and EDP-2 have available fault currents of approximately 42kA if all of the loads are fed from the same generator.

Recommendations: Replace the four (4) Siemens HED4 (42kA) breakers with 50kA minimum rated breakers. The bus bracing for the EDP panels is currently rated for 65kA. The study herein was updated to reflect the 4 new replacement breakers with 65kAIC ratings. It was reported that the four (4) breakers will be replaced based on the findings of the initial report issue.

As switchboards, MCC and panel ratings are based on the lowest rated device installed in it; care should be taken when specifying protective devices.

The enclosed study single lines depict the results of the short circuit study at each equipment location as well as the recommended minimum short circuit rating. The study single lines enclosed include all contributions, impedances, transformer data protective device data, and calculated duties.

2.3 Coordination Study

2.31 Introduction

A coordination study graphically displays the existing chain of protection from the incoming utility and backup sources, where applicable, down to the main low voltage distribution. It is the intent of a coordination study to determine the proper protective device settings for the system for selectivity and reliability. The term "selectivity" is used to generally describe the interrelated performance of relays and other protective devices with respect to preserving continuity of service. A coordination analysis will include recommended settings. Several representative time current curve drawings are typically generated to represent typical worst case circuits that normally dictate settings for the remaining circuits. Circuits are selected based on the size of the protective devices as the largest downstream devices will determine settings for all main upstream devices.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

The primary function of protective devices in any power system is to detect and initiate clearing of short circuits and other overcurrent conditions with a minimum degree of disturbance to the system as a whole by activating the appropriate interrupting device which feeds the faulted branch. A protective device coordination study is required to establish the necessary device settings so that the intended performance of the system will be achieved. Coordination also provides assurance against injuries to personnel, equipment damage and the interruption of power to the remainder of the system. The ultimate goal of any coordination study is to provide safety to personnel first and limit an outage due to a fault.

2.32 Protection Principles

There are competing goals in the device setting process. One goal is to protect the equipment from fault current damage, while the other goal is to achieve selectivity between protective devices. An exercise in judgment must be used in selecting ratings and settings of the devices for the best balance of the two goals

- protection and selectivity.

Cables - The breakers protecting feeder cable circuits should be selected so as not to exceed the cables full load ampacity per NEC. This will be determined by the local codes and manufacturer’s installation recommendations and/or restrictions. The short circuit withstand limit defines the maximum time to raise the conductor temperature from its normal operating temperature to the maximum allowable insulation temperature. This assumes that none of the internal heat generated is dissipated to the surrounding environment. For times longer than 10 seconds, heat is being dissipated and the constant I2T characteristic is no longer valid.

Transformers - Protective devices for transformers are located either on the primary or both the primary and secondary windings in order to meet the basic protection requirements for overloads. The primary protective device must also be able to withstand magnetizing inrush current without tripping. In addition the protective device must protect the transformer within its short circuit withstand capabilities. Based on the transformer size and impedance, the program will automatically generate the transformer withstand limit curve. The withstand limit curve should fall to the right of the protective device while the transformer full load capacity and magnetizing inrush current shall fall to the left of the protective device curve.

2.33 Coordination Concepts and Principles

Time Overcurrent Relays - Time overcurrent relays provide the primary protection for circuits, and the necessary backup protection for the circuits that are protected by other devices.

A minimum operating time margin of 0.3 seconds for electronic relays and 0.4 seconds for electromechanical relays should be allowed between the characteristics of time overcurrent relays which are required to operate selectively with each other. This time margin is added to the relay operating time of the downstream device at the maximum fault current which the circuit will produce or at the current where the instantaneous element for the downstream device is set to operate.

Relays are manufactured with options of different slope and relative time delay

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

characteristics. The slope characteristics are defined as inverse, very inverse, and extremely inverse as illustrated in Figure 2-3. The time delay options are defined in terms such as short time, standard time, medium time and long time.

A relay characteristic should be selected so that it closely matches the operating characteristic of the downstream protective devices. This upstream relay should operate with the least amount of time delay possible for best protection, yet with sufficient time delay to allow for the operation of the downstream device within the appropriate time margin. For example, an extremely inverse characteristic might be selected to backup a downstream current limiting fuse.

Another example would be the selection of a standard time inverse characteristic for a feeder ground fault relay to provide an operating time that is essentially constant over a wide range of fault currents when coordinating that relay with a downstream ground relay.

In systems having only a single source of fault current, all time overcurrent relays in the system will see the same fault current, excluding motor contribution. When there are two or more sources of fault current, the current magnitude seen by relays in various parts of the system will, in general, be different. Fault contributions from each source must be noted on the time current curve drawing to determine the actual time margin between the relay characteristics.

Instantaneous Overcurrent Relays - Instantaneous overcurrent relays have extremely fast operating times (less than one cycle). They are essential for fast clearing of extremely high fault currents in order to minimize burning damage.

These devices can be selectively coordinated only when they are applied nearest the load or when there is sufficient power circuit impedance (e.g., transformers or cable circuits) between two devices in series to provide selectivity by fault current magnitude or by pickup current alone. Even in these cases, the setting of the trip device must be above anticipated current switching surges (e.g., d-c offset of motor inrush or transformer magnetizing inrush currents).

LVCB Solid-State Trip Devices, Fuses, Molded Case Circuit Breakers - The trip characteristic of these devices is usually defined by an envelope that includes the device initiation time, manufacturing tolerances, and clearing time. When coordinating these devices with one another, it is only necessary to establish clear space between the time-current plots of those applied in series.

2.34 Findings and Recommendations

COORDINATION:

Findings: Coordination and some degree of selectivity exist for the electrical infrastructure analyzed. The large proportion of adjustable breakers was able to provide coordination within the system.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

Recommendations: Utilize the circuit breaker settings recommended in this study.

2.35 Time Current Curve Drawings

The ultimate goal of any coordination study is to limit any outage due to a fault to only the circuit affected (i.e. trip only the device upstream of the fault). The time current curves are a graphical plot that represents the relationship between the overcurrent devices used in this system. All time current drawings were graphically generated by a computer from a device library. Key areas of the system are chosen for the study to illustrate the coordination of the system. The analysis centers its attention to the largest protective device at each panel or switchboard such that if the largest device coordinates with an upstream device the remaining devices will coordinate. These curves are used to establish the recommended setting of the devices. All transformer damage points are plotted to ANSI C57.109 criteria along with its full load capability and magnetizing inrush point.

Series rated systems utilize branch devices rated less than the available fault current in combination with fully rated upstream devices. All of the overcurrent devices and series ratings identified herein are Underwriters Laboratories, Inc.

recognized components and are in full compliance with UL Standard 489 covering molded case circuit breakers. When series rated devices are utilized in order to properly rate the system based on available fault current, selectivity is sacrificed for system protection.

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

EMERGENCY SYSTEM TIME CURRENT CURVES (GENS ONLY):

35164 A

Gen SC

3007 A

TX Inrush

1203 A

0.5 1

1K 1K

K

K

0.01 0.01

0.10 0.10

1 1

10 10

100 100

1000 1000

CURRENT IN AMPERES

TIME IN SECONDS

GEN1 CB

EDP-1 CB MTS-2 N

GEN1

TX TR-1

GEN1 CB

EDP-1 CB MTS-2 N

GEN1

TX TR-1

GEN1

2000kW, 2500kVA 480V X1=0.1378 pu X2=0.1335 pu X0=0.0980 pu

GEN1 CB

SIEMENS

WLL-3200

3200.0AF /3000.0AS

Plug 3000.0A LTPU (0.4-1xS) 1 (3000A)

LTD (2-30S) 30

STPU (1.25-12xS) 6 (18000A) STD (0.02-0.4S) 0.02 (I^2t Out) INST (1.5-12xS) MAX (45000A)

FDR TO EDP-1

GEN1 OP

480V, 3000A SC Amps RMS=35164A SC Amps L-G=33737A SC(@Calc.X/R)=42kA 42% of EquipRating

EDP-1

480V, 3000A SC Amps RMS=34722A SC Amps L-G=31946A SC(@Calc.X/R)=41kA 81% of EquipRating

EDP-1 CB MTS-2 N

SIEMENS

PXD6

1600.0AF /1600.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (10000A)

FDR TO MTS-2 N

EN

MTS-2

MTS-2 OP

480V, 1600A SC Amps RMS=33441A SC Amps L-G=30005A SC(@Calc.X/R)=38kA 76% of EquipRating

FDR TO TX TR-2

P

S

TX TR-2

1000.0kVA/1000.0kVA 480 V-4160 V Z%=5.75%, X/R=6.00

TCC: EDP 1600A CKT Current Scale x 100 Reference Voltage: 480 June 2, 2009

1-LINE: TCC 1

35164 A14738 A

Gen SC

3007 A

0.5 1

1K 1K

K

K

0.01 0.01

0.10 0.10

1 1

10 10

100 100

1000 1000

CURRENT IN AMPERES

TIME IN SECONDS

GEN1 CB

EDP-1 CB MTS-5 N

MCC-136-C F1

MCC-136-C F2

PP-1 MAIN CB

PP-1 CB1

GEN1

GEN1 CB

EDP-1 CB MTS-5 N

MCC-136-C F1

MCC-136-C F2

PP-1 MAIN CB

PP-1 CB1

GEN1 ATS-5 OP

FDR TO MCC-136-C

MCC-136-C

480V, 800A SC Amps RMS=14738A SC Amps L-G=10919A SC(@Calc.X/R)=15kA 35% of EquipRating

MCC-136-C F1

BUSSMANN

LPS-RK

400.0AF /400.0AS

MCC-136-C F2

BUSSMANN

LPS-RK

200.0AF /125.0AS

MTS-5 OP

480V, 800A SC Amps RMS=30120A SC Amps L-G=26322A SC(@Calc.X/R)=33kA 65% of EquipRating

FDR TO ATS-5 E

EDP-1 CB MTS-5 N

SIEMENS

LMXD6

800.0AF /800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

FDR TO MTS-5 N

FDR TO PP-1

PP-1

480V, 150A SC Amps RMS=5776A SC Amps L-G=3623A SC(@Calc.X/R)=6kA 41% of EquipRating

PP-1 CB1

SIEMENS

BQD

60.0AF /60.0AS

Fixed

PP-1 MAIN CB

SIEMENS

ED4

125.0AF /125.0AS

Thermal Curve (Fixed) INST Fixed (800A)

EDP-1

480V, 3000A SC Amps RMS=34722A SC Amps L-G=31946A SC(@Calc.X/R)=41kA 81% of EquipRating

FDR TO EDP-1

GEN1 CB

SIEMENS

WLL-3200

3200.0AF /3000.0AS

Plug 3000.0A LTPU (0.4-1xS) 1 (3000A)

LTD (2-30S) 30

STPU (1.25-12xS) 6 (18000A) STD (0.02-0.4S) 0.02 (I^2t Out) INST (1.5-12xS) MAX (45000A)

EN

EN

TCC: EDP 800A CKT Current Scale x 100 Reference Voltage: 480 June 2, 2009

1-LINE: TCC 2

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

3.0 COMPUTER OUTPUT REPORTS AND RESULT SUMMARIES

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

3.1 Short Circuit Output Report

DAPPER Fault Contribution Complete Report

Comprehensive Short Circuit Study Settings

Three Phase Fault

Single Line to Ground Line to Line Fault

Line to Line to Ground

All BusesFaulted Bus

Yes

Yes Yes No No

Motor Contribution

Transformer Tap

Xformer Phase Shift

Yes

Yes

Bus Voltages

Branch Currents

Phase or Sequence

Fault Current Calculation

Asym Fault Current at Time 0.50

First Bus From Fault First Branch From Fault Report phase quantities Initial Symmetrical RMS (with 1/2 Cycle Asym)

Cycles

Project: GAVAN-GRAHAM -

Bus Name -------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

EDP-1 034,846 0 0 52,282 47,818 032,262

FDR TO EDP-1 35,40921,158 0 0 31,744 0 0In Cable 23,890 32,262 FDR TO MTS-1 E 4,2324,670 0 0 7,006 0 0In Cable 2,855 FDR TO MTS-2 N 4,2404,678 0 0 7,019 0 0In Cable 2,861 FDR TO MTS-3 N 1,3731,515 0 0 2,272 0 0In Cable 926 FDR TO MTS-4 N 2,5782,845 0 0 4,268 0 0In Cable 1,740 FDR TO MTS-5 N 00 0 0 0 0 0In Cable 0 FDR TO MTS-6 N 00 0 0 0 0 0In Cable 0 FDR TO MTS-7 N 00 0 0 0 0 0In Cable 0

GEN1 OP 035,217 0 0 53,416 52,279 033,769

FDR TO EDP-1 13,16813,438 0 0 20,381 0 0In Cable 8,506 GEN1 39,13221,806 0 0 33,074 0 0In Gen. 25,277 33,769

Bus Name -------------Initial Symmetrical Amps-----------

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

MTS-1 N 020,324 0 0 30,721 31,346 021,739

FDR TO MTS-1 N 31,34620,324 0 0 30,721 0 0In Cable 21,739 21,739 MTS-1 38,58228,851 0 0 42,030 0 0In 27,481

MTS-1 E 033,555 0 0 48,882 42,520 030,286

FDR TO MTS-1 E 38,58228,851 0 0 42,030 0 0In Cable 27,481 30,286 MTS-1 3,9384,703 0 0 6,852 0 0In 2,805

MTS-2 N 033,556 0 0 48,882 42,520 030,287

FDR TO MTS-2 N 38,57528,844 0 0 42,018 0 0In Cable 27,477 30,287 MTS-2 38,57528,844 0 0 42,018 0 0In 27,477

MTS-2 E 020,414 0 0 30,970 31,763 021,896

FDR TO MTS-2 E 31,76320,414 0 0 30,970 0 0In Cable 21,896 21,896 MTS-2 3,9454,712 0 0 6,864 0 0In 2,810

MTS-3 N 031,370 0 0 43,636 36,603 027,705

FDR TO MTS-3 N 35,42929,847 0 0 41,517 0 0In Cable 26,816 27,705 MTS-3 35,42829,847 0 0 41,517 0 0In 26,816

MTS-3 E 019,885 0 0 29,534 29,418 020,986

FDR TO MTS-3 E 29,41819,885 0 0 29,534 0 0In Cable 20,986 20,986 MTS-3 1,1751,523 0 0 2,118 0 0In 889

MTS-4 N 031,304 0 0 43,424 35,876 027,382

FDR TO MTS-4 N 33,69628,427 0 0 39,433 0 0In Cable 25,718 27,382 MTS-4 33,69528,427 0 0 39,433 0 0In 25,718

MTS-4 E 019,885 0 0 29,534 29,418 020,986

FDR TO MTS-4 E 29,41819,885 0 0 29,534 0 0In Cable 20,986 20,986 MTS-4 2,1812,878 0 0 3,992 0 0In 1,665

MTS-5 N 030,215 0 0 41,117 34,253 026,545

FDR TO MTS-5 N 34,25330,215 0 0 41,117 0 0In Cable 26,545 26,545

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

MTS-5 34,25330,215 0 0 41,117 0 0In 26,545

MTS-5 E 019,885 0 0 29,534 29,418 020,986

FDR TO MTS-5 E 29,41819,885 0 0 29,534 0 0In Cable 20,986 20,986 MTS-5 00 0 0 0 0 0In 0

MTS-6 N 05,642 0 0 5,642 3,344 03,344

FDR TO MTS-6 N 3,3445,642 0 0 5,642 0 0In Cable 3,344 3,344 MTS-6 3,3445,642 0 0 5,642 0 0In 3,344

MTS-6 E 06,167 0 0 6,167 3,770 03,770

FDR TO MTS-6 E 3,7706,167 0 0 6,167 0 0In Cable 3,770 3,770 MTS-6 00 0 0 0 0 0In 0

MTS-7 N 05,642 0 0 5,642 3,344 03,344

FDR TO MTS-7 N 3,3445,642 0 0 5,642 0 0In Cable 3,344 3,344 MTS-7 3,3445,642 0 0 5,642 0 0In 3,344

MTS-7 E 06,167 0 0 6,167 3,770 03,770

FDR TO MTS-7 E 3,7706,167 0 0 6,167 0 0In Cable 3,770 3,770 MTS-7 00 0 0 0 0 0In 0

MTS-2 OP 033,556 0 0 48,882 42,520 030,287

FDR TO TX TR-2 3,9454,712 0 0 6,864 0 0In Cable 2,810

MTS-3 OP 031,370 0 0 43,635 36,603 027,705

FDR TO ATS-3 E 1,1751,523 0 0 2,118 0 0In Cable 889

MTS-4 OP 031,304 0 0 43,423 35,876 027,382

FDR TO ATS-4 E 2,1812,878 0 0 3,992 0 0In Cable 1,665

MTS-5 OP 030,215 0 0 41,117 34,253 026,545

FDR TO ATS-5 E 00 0 0 0 0 0In Cable 0

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

MTS-6 OP 05,642 0 0 5,642 3,344 03,344

FDR TO ATS-6 E 00 0 0 0 0 0In Cable 0

MTS-7 OP 05,642 0 0 5,642 3,344 03,344

FDR TO ATS-7 E 00 0 0 0 0 0In Cable 0

TX TR-1 PRI 032,363 0 0 45,970 38,348 028,522

FDR TO TX TR-1 34,63827,627 0 0 39,242 0 0In Cable 25,763 28,522 TX TR-1 3,7114,737 0 0 6,729 0 0In Xformer2 2,760

ATS-1 E 02,064 0 0 2,839 2,812 02,144

FDR TO ATS-1 E 2,1721,358 0 0 1,868 0 0In Cable 1,656 2,144 ATS-1 643709 0 0 976 0 0In 490

CHILLER-1 IP 02,058 0 0 2,812 2,750 02,128

FDR TO CHILLER-1 2,1221,351 0 0 1,847 0 0In Cable 1,642 2,128 CHILLER-1 631710 0 0 971 0 0In Ind Mtr 488

TX TR-2 PRI 032,365 0 0 45,970 38,348 028,523

FDR TO TX TR-2 34,63127,620 0 0 39,230 0 0In Cable 25,759 28,523 TX TR-2 3,7184,746 0 0 6,741 0 0In Xformer2 2,765

TX TR-2 SEC 02,080 0 0 2,913 2,991 02,185

FDR TO ATS-2 E 676708 0 0 991 0 0In Cable 494 TX TR-2 2,3161,374 0 0 1,924 0 0In Xformer2 1,692 2,185

ATS-2 E 02,064 0 0 2,831 2,795 02,141

FDR TO ATS-2 E 2,1571,356 0 0 1,860 0 0In Cable 1,652 2,141 ATS-2 640711 0 0 976 0 0In 491

ATS-2 OP 02,064 0 0 2,831 2,795 02,141

FDR TO CHILLER-3 640711 0 0 976 0 0In Cable 491

CHILLER-3 IP 02,056 0 0 2,797 2,718 02,120

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

FDR TO CHILLER-3 2,0941,348 0 0 1,833 0 0In Cable 1,634 2,120 CHILLER-3 626713 0 0 970 0 0In Ind Mtr 489

ATS-3 E 017,951 0 0 20,659 14,189 013,134

FDR TO ATS-3 E 13,36916,389 0 0 18,862 0 0In Cable 12,375 13,134 ATS-3 8331,587 0 0 1,826 0 0In 771

ATS-3 OP 017,951 0 0 20,659 14,189 013,134

FDR TO MCC-136-A 8331,587 0 0 1,826 0 0In Cable 771

MCC-136-A 015,687 0 0 17,727 11,817 011,090

FDR TO MCC-136-A 11,02914,112 0 0 15,947 0 0In Cable 10,350 11,090 FDR TO MCC-136-A P 8061,610 0 0 1,820 0 0In Cable 756 FDR TO MCC-136-A P 00 0 0 0 0 0In Cable 0

ATS-4 E 018,922 0 0 22,083 14,420 013,330

FDR TO ATS-4 E 12,86015,841 0 0 18,487 0 0In Cable 11,888 13,330 ATS-4 1,5803,122 0 0 3,643 0 0In 1,460

ATS-4 OP 018,922 0 0 22,083 14,420 013,330

FDR TO MCC-136-B 1,5803,122 0 0 3,643 0 0In Cable 1,460

MCC-136-B 017,206 0 0 19,834 12,509 011,692

FDR TO MCC-136-B 10,99214,067 0 0 16,216 0 0In Cable 10,273 11,692 FDR TO MCC-136-B P 237490 0 0 565 0 0In Cable 221 FDR TO MCC-136-B P 237490 0 0 565 0 0In Cable 221 FDR TO MCC-136-B P 389805 0 0 928 0 0In Cable 364 FDR TO MCC-136-B P 389805 0 0 928 0 0In Cable 364 FDR TO MCC-136-B P 293607 0 0 700 0 0In Cable 274

ATS-5 E 016,224 0 0 18,258 13,111 012,226

FDR TO ATS-5 E 13,11116,224 0 0 18,258 0 0In Cable 12,226 12,226 ATS-5 00 0 0 0 0 0In 0

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

ATS-5 OP 016,224 0 0 18,258 13,111 012,226

FDR TO MCC-136-C 00 0 0 0 0 0In Cable 0

MCC-136-C 014,763 0 0 16,407 11,653 010,959

FDR TO MCC-136-C 11,65314,763 0 0 16,407 0 0In Cable 10,959 10,959 FDR TO PP-1 00 0 0 0 0 0In Cable 0

PP-1 05,780 0 0 5,781 3,627 03,627

FDR TO PP-1 3,6275,780 0 0 5,781 0 0In Cable 3,627 3,627

TX TR-1 SEC 02,079 0 0 2,914 2,992 02,184

FDR TO ATS-1 E 675706 0 0 990 0 0In Cable 493 TX TR-1 2,3181,374 0 0 1,927 0 0In Xformer2 1,692 2,184

ATS-1 OP 02,064 0 0 2,839 2,812 02,144

FDR TO CHILLER-1 643709 0 0 976 0 0In Cable 490

GEN2 OP 021,806 0 0 34,987 39,165 024,410

FDR TO EDP-2 00 0 0 0 0 0In Cable 0 GEN2 39,16521,806 0 0 34,987 0 0In Gen. 24,410 24,410

EDP-2 021,158 0 0 33,120 35,568 023,219

FDR TO EDP-2 35,56821,158 0 0 33,120 0 0In Cable 23,219 23,219 FDR TO MTS-1 N 00 0 0 0 0 0In Cable 0 FDR TO MTS-2 E 00 0 0 0 0 0In Cable 0 FDR TO MTS-3 E 00 0 0 0 0 0In Cable 0 FDR TO MTS-4 E 00 0 0 0 0 0In Cable 0 FDR TO MTS-5 E 00 0 0 0 0 0In Cable 0 FDR TO MTS-6 E 00 0 0 0 0 0In Cable 0 FDR TO MTS-7 E 00 0 0 0 0 0In Cable 0

MTS-1 OP 033,555 0 0 48,882 42,520 030,286

FDR TO TX TR-1 3,9384,703 0 0 6,852 0 0In Cable 2,805

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

INPUT P#1 012,889 0 0 13,618 8,723 08,564

FDR TO MCC-136-A P 8,03211,357 0 0 11,999 0 0In Cable 7,885 8,564 P#1 7401,644 0 0 1,737 0 0In Ind Mtr 726

INPUT P#2 012,378 0 0 12,878 8,525 08,391

FDR TO MCC-136-A P 8,52512,378 0 0 12,878 0 0In Cable 8,391 8,391 P#2 Ou Ind Mtr

INPUT P#4 014,024 0 0 14,807 9,372 09,184

FDR TO MCC-136-B P 9,16613,562 0 0 14,319 0 0In Cable 8,983 9,184 P#4 219492 0 0 520 0 0In Ind Mtr 214

INPUT P#5 014,024 0 0 14,807 9,372 09,184

FDR TO MCC-136-B P 9,16613,562 0 0 14,319 0 0In Cable 8,983 9,184 P#5 219492 0 0 520 0 0In Ind Mtr 214

INPUT P#7 011,474 0 0 11,772 7,294 07,241

FDR TO MCC-136-B P 6,98310,739 0 0 11,018 0 0In Cable 6,932 7,241 P#7 347821 0 0 842 0 0In Ind Mtr 345

INPUT P#8 011,474 0 0 11,772 7,294 07,241

FDR TO MCC-136-B P 6,98310,739 0 0 11,018 0 0In Cable 6,932 7,241 P#8 347821 0 0 842 0 0In Ind Mtr 345

INPUT P#9 011,772 0 0 12,089 7,551 07,489

FDR TO MCC-136-B P 7,30811,202 0 0 11,504 0 0In Cable 7,248 7,489 P#9 263616 0 0 632 0 0In Ind Mtr 261

ATS-6 E 01,330 0 0 1,330 777 0777

FDR TO ATS-6 E 7771,330 0 0 1,330 0 0In Cable 777 777 ATS-6 00 0 0 0 0 0In 0

ATS-7 E 01,330 0 0 1,330 777 0777

FDR TO ATS-7 E 7771,330 0 0 1,330 0 0In Cable 777 777

3 Phase SLG LLG LL LLG LLSLG3 Phase SLG LLG ----------------Asymmetrical Amps---------------- ---Init Sym Neutral Amps---

ATS-7 00 0 0 0 0 0In 0

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

3.2 Device Evaluation Results

Bus Calc Dev % of Isc Calc Dev % of Mom Status Volt. Isc kA Isc kA Rating Mom kA Mom kA Rating (Pass/Fail)

GEN1 OP LV Switchboard 480 3000 41.67 (*N1) 100 41.67 Pass

GEN2 OP LV Switchboard 480 3000 30.18 (*N1) 100 30.18 Pass

EDP-1 LV Switchboard 480 3000 40.88 (*N1) 50 81.76 Pass

EDP-2 LV Switchboard 480 3000 27.69 (*N1) 50 55.38 Pass

MCC-136-A MCC 480 800 15.69 42 37.35 Pass

MCC-136-B MCC 480 800 17.21 42 40.97 Pass

MCC-136-C MCC 480 800 14.76 42 35.15 Pass

PP-1 LV Panelboard 480 150 5.78 14 41.28 Pass

ATS-1 ATS 4160 600 2.14 25 8.57 2.84 40 7.1 Pass

ATS-2 ATS 4160 600 2.14 25 8.56 2.83 40 7.08 Pass

ATS-3 ATS 480 800 17.95 50 35.9 Pass

ATS-4 ATS 480 800 18.92 50 37.84 Pass

ATS-5 ATS 480 800 16.22 50 32.45 Pass

ATS-6 ATS 480 100 1.33 65 9.5 Pass

ATS-7 ATS 480 100 1.33 65 9.5 Pass

MTS-1 MTS 480 1600 38.44 (*N1) 50 76.89 Pass

MTS-2 MTS 480 1600 38.44 (*N1) 50 76.89 Pass

MTS-3 MTS 480 800 34.60 (*N1) 50 69.19 Pass

MTS-4 MTS 480 800 34.44 (*N1) 50 68.89 Pass

MTS-5 MTS 480 800 32.71 (*N1) 50 65.42 Pass

MTS-6 MTS 480 100 5.64 65 13.43 Pass

MTS-7 MTS 480 100 5.64 65 13.43 Pass

CHILLER-1 MV Switchgear 4160 1200 2.13 20 10.64 4.74 52 9.12 Pass

CHILLER-3 MV Switchgear 4160 1200 2.12 20 10.6 4.72 52 9.08 Pass

(*N1) System X/R higher than Test X/R, Calc INT kA modified based on low voltage factor.

(*Calc Isc kA) failed to pass, Marginal 90% - Failed 100% of the device library Isc rating.

Assumed ATS/MTS series rated with upstream breaker/fuse.

Lyons VA Hospital - Device Evaluation Results - 6-1-09

Bus Equip. Ampacity

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

4.0 CIRCUIT BREAKER/RELAY SETTINGS

4.1 Circuit Breaker/Relay Tables

Equipment Name/Type Description CB Type Frame/Sensor/Plug Settings

GEN1 CB SIEMENS WLL-3200 3200.0A LTPU (0.4-1xS) 1 (3000A)

Static Trip WL, ETU-745 UL489 3000.0A LTD (2-30S) 30

LSI, 150-5000A 3000.0A STPU (1.25-12xS) 6 (18000A)

STD (0.02-0.4S) 0.02 (I^2t Out)

INST (1.5-12xS) MAX (45000A)

GEN2 CB SIEMENS WLL-3200 3200.0A LTPU (0.4-1xS) 1 (3000A)

Static Trip WL, ETU-745 UL489 3000.0A LTD (2-30S) 30

LSI, 150-5000A 3000.0A STPU (1.25-12xS) 6 (18000A)

STD (0.02-0.4S) 0.4 (I^2t Out)

INST (1.5-12xS) 8 (24000A)

EDP-1 CB MTS-1 E SIEMENS PXD6 1600.0A Thermal Curve (Fixed)

Thermal Magnetic PXD6 Sentron 1600.0A INST (LO-HI) HI (10000A)

1200-1600A

EDP-1 CB MTS-2 N SIEMENS PXD6 1600.0A Thermal Curve (Fixed)

Thermal Magnetic PXD6 Sentron 1600.0A INST (LO-HI) HI (10000A)

1200-1600A

EDP-1 CB MTS-3 N SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

GENS

EDP-1

Lyons VA Hospital - Circuit Breaker Setting Sheets - 3-26-09

EDP-1 CB MTS-4 N SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

EDP-1 CB MTS-5 N SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

EDP-2 CB MTS-1 N SIEMENS PXD6 1600.0A Thermal Curve (Fixed)

Thermal Magnetic PXD6 Sentron 1600.0A INST (LO-HI) HI (10000A)

1200-1600A

EDP-2 CB MTS-2 E SIEMENS PXD6 1600.0A Thermal Curve (Fixed)

Thermal Magnetic PXD6 Sentron 1600.0A INST (LO-HI) HI (10000A)

1200-1600A

EDP-2 CB MTS-3 E SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

EDP-2 CB MTS-4 E SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

EDP-2 CB MTS-5 E SIEMENS LMXD6 800.0A Thermal Curve (Fixed)

Thermal Magnetic LMXD6 Sentron 800.0A INST (LO-HI) HI (8000A)

500-800A

EDP-2

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

5.0 CASE SINGLE LINE DIAGRAMS

ESTIMATED HP BASED ON 1000 TON

RATING (TYPICAL)

1. REVISED 480V MOTOR LOADS.

2. CHANGED (4) 42KAIC RATED CB'S TO 65KAIC RATED CB'S AT EDP-1 & 2

(ATS #6&7) BASED ON NEW SC CALC.

ASSUMES BOTH MOTORS

RUNNING FOR EACH PUMP PAIR.

CHANGED FROM 200HP TO 60HP.

POWER SYSTEM STUDY FOR

LYONS VA HOSPITAL

PERFORMED BY TRIAD

CONSULTING ENGINEERS, INC.

REVISION DATE: 6-1-09

BUS BRACING FOR EDP-1 & EDP-2 IS RATED

FOR 65KA. MINIMUM RECOMMENDED CIRCUIT

BREAKER RATING IS 50KAIC.

(ASSUMES ALL LOAD IS SWITCHED TO ONE

GENERATOR)

ASSUMES ONLY 1 OF 2 MOTORS

RUNNING FOR EACH PUMP PAIR.

ASSUMES BOTH MOTORS

RUNNING FOR EACH PUMP PAIR.

CHANGED FROM 200HP TO 100HP

GEN1

2000kW/2500.0kVA 480V X1=0.1378pu, X/R=26.2547 X2=0.1335pu, X/R=26.2547 X0=0.0980pu, X/R=26.2547

RMS 3P=21806A

RMS SLG=25274A

In/Out of Service: (In)

EDP-1

480V, 3000A 51949A Asym SC 34722A Sym SC

31946A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=41kA @ X/R=@13.11 81% Of Equip. Rating Equip.Status (Pass/Fail): Pass

GEN1 CB

SIEMENS

WLL-3200

(100.0kA)

3200.0AF/3000.0AS

Plug 3000.0 A LTPU (0.4-1xS) 1 (3000A)

LTD (2-30S) 30

STPU (1.25-12xS) 6 (18000A) STD (0.02-0.4S) 0.02 (I^2t Out) INST (1.5-12xS) MAX (45000A)

FDR TO EDP-1

(7 )Set of #750AWG/kcmil/Ph.

(72.0ft) Ampacity 3325.0 A

GEN1 OP

480V, 3000A 53294A Asym SC 35164A Sym SC

33737A SLG

Equip.Rating=100kA @X/R=4.90 Calc. SC=42kA @ X/R=@14.51 42% Of Equip. Rating Equip.Status (Pass/Fail): Pass

EDP-1 CB MTS-1 E

SIEMENS

PXD6

(50.0kA)

1600.0AF/1600.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (10000A)

EDP-1 CB MTS-2 N

SIEMENS

PXD6

(50.0kA)

1600.0AF/1600.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (10000A)

EDP-1 CB MTS-3 N

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-1 CB MTS-4 N

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-1 CB MTS-5 N

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-1 CB MTS-6 N

SIEMENS

HHED6

(65.0kA)

125.0AF/30.0AS

Thermal Curve (Fixed) INST Fixed (800A)

EDP-1 CB MTS-7 N

SIEMENS

HHED6

(65.0kA)

125.0AF/30.0AS

Thermal Curve (Fixed) INST Fixed (800A)

EDP-2 CB MTS-1 N

SIEMENS

PXD6

(50.0kA)

1600.0AF/1600.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (10000A)

EDP-2 CB MTS-2 E

SIEMENS

PXD6

(50.0kA)

1600.0AF/1600.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (10000A)

EDP-2 CB MTS-3 E

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-2 CB MTS-4 E

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-2 CB MTS-5 E

SIEMENS

LMXD6

(50.0kA)

800.0AF/800.0AS

Thermal Curve (Fixed)

INST (LO-HI) HI (8000A)

EDP-2 CB MTS-6 E

SIEMENS

HHED6

(65.0kA)

125.0AF/30.0AS

Thermal Curve (Fixed) INST Fixed (800A)

EDP-2 CB MTS-7 E

SIEMENS

HHED6

(65.0kA)

125.0AF/30.0AS

Thermal Curve (Fixed) INST Fixed (800A)

FDR TO MTS-1 E

(4 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 1680.0 A

FDR TO MTS-2 N

(4 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 1680.0 A

FDR TO MTS-3 N

(2 )Set of #600AWG/kcmil/Ph.

(40.0ft) Ampacity 840.0 A

FDR TO MTS-4 N

(2 )Set of #600AWG/kcmil/Ph.

(45.0ft) Ampacity 840.0 A

FDR TO MTS-5 N

(2 )Set of #600AWG/kcmil/Ph.

(50.0ft) Ampacity 840.0 A

FDR TO MTS-6 N

(1 )Set of #10AWG/kcmil/Ph.

(40.0ft) Ampacity 30.0 A

FDR TO MTS-7 N

(1 )Set of #10AWG/kcmil/Ph.

(40.0ft) Ampacity 30.0 A

FDR TO MTS-1 N

(4 )Set of #600AWG/kcmil/Ph.

(45.0ft) Ampacity 1680.0 A

FDR TO MTS-2 E

(4 )Set of #600AWG/kcmil/Ph.

(40.0ft) Ampacity 1680.0 A

FDR TO MTS-3 E

(2 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 840.0 A

FDR TO MTS-4 E

(2 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 840.0 A

FDR TO MTS-5 E

(2 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 840.0 A

FDR TO MTS-6 E

(1 )Set of #10AWG/kcmil/Ph.

(35.0ft) Ampacity 30.0 A

FDR TO MTS-7 E

(1 )Set of #10AWG/kcmil/Ph.

(35.0ft) Ampacity 30.0 A

E N

MTS-1

EN

MTS-2

EN

MTS-3

EN

MTS-4

EN

MTS-5

EN

MTS-6

EN

MTS-7

MTS-2 OP

480V, 1600A 48597A Asym SC 33441A Sym SC

30005A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=38kA @ X/R=@10.70 76% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-3 OP

480V, 800A 43409A Asym SC 31268A Sym SC

27465A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=34kA @ X/R=@8.17 69% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-4 OP

480V, 800A 43203A Asym SC 31203A Sym SC

27148A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=34kA @ X/R=@8.06 69% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-5 OP

480V, 800A 40914A Asym SC 30120A Sym SC

26322A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=33kA @ X/R=@7.29 65% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-6 OP

480V, 100A 5639A Asym SC 5639A Sym SC

3341A SLG

Equip.Rating=42kA @X/R=4.90 Calc. SC=6kA @ X/R=@0.24 13% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-7 OP

480V, 100A 5639A Asym SC 5639A Sym SC

3341A SLG

Equip.Rating=42kA @X/R=4.90 Calc. SC=6kA @ X/R=@0.24 13% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO TX TR-1

(4 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 1680.0 A

P

S

TX TR-1

1000.0kVA 1000.0kVA 480V- 4160V Z%=5.75% X/R=6.00

FDR TO ATS-1 E

(1 )Set of #2AWG/kcmil/Ph.

(245.0ft) Ampacity 144.1 A

EN

ATS-1

FDR TO CHILLER-1

(1 )Set of #2AWG/kcmil/Ph.

(95.0ft) Ampacity 155.0 A

CHILLER-1

750hp, 121FLA 4160V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=710A

CHILLER-1 IP

FDR TO TX TR-2

(4 )Set of #600AWG/kcmil/Ph.

(35.0ft) Ampacity 1680.0 A

P

S

TX TR-2

1000.0kVA 1000.0kVA 480V- 4160V Z%=5.75% X/R=6.00

FDR TO ATS-2 E

(1 )Set of #2AWG/kcmil/Ph.

(270.0ft) Ampacity 155.0 A

TX TR-2 SEC

EN

ATS-2

FDR TO CHILLER-3

(1 )Set of #2AWG/kcmil/Ph.

(120.0ft) Ampacity 155.0 A

ATS-2 OP

4160V, 600A 2827A Asym SC 2062A Sym SC

2139A SLG

Equip.Rating=25kA @X/R=15.00 Calc. SC=2kA @ X/R=@7.65 9% Of Equip. Rating Equip.Status (Pass/Fail): Pass

CHILLER-3 IP

FDR TO ATS-3 E

(2 )Set of #600AWG/kcmil/Ph.

(300.0ft) Ampacity 840.0 A

FDR TO ATS-4 E

(2 )Set of #600AWG/kcmil/Ph.

(305.0ft) Ampacity 840.0 A

FDR TO ATS-5 E

(2 )Set of #600AWG/kcmil/Ph.

(310.0ft) Ampacity 840.0 A

EN

ATS-3

ATS-3 OP

480V, 800A 20616A Asym SC 17919A Sym SC

13077A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=18kA @ X/R=@3.45 36% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO MCC-136-A

(2 )Set of #600AWG/kcmil/Ph.

(105.0ft) Ampacity 840.0 A

MCC-136-A

480V, 800A 17697A Asym SC 15663A Sym SC

11050A SLG

Equip.Rating=42kA @X/R=4.90 Calc. SC=16kA @ X/R=@3.18 37% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MCC-136-A F1

BUSSMANN

LPS-RK

(200.0kA)

400.0AF/400.0AS

EN

ATS-4

ATS-4 OP

480V, 800A 22039A Asym SC 18889A Sym SC

13273A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=19kA @ X/R=@3.67 38% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO MCC-136-B

(2 )Set of #600AWG/kcmil/Ph.

(85.0ft) Ampacity 840.0 A

MCC-136-B

480V, 800A 19801A Asym SC 17180A Sym SC

11648A SLG

Equip.Rating=42kA @X/R=4.90 Calc. SC=17kA @ X/R=@3.48 41% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MCC-136-B F1

EN

ATS-5

ATS-5 OP

480V, 800A 18221A Asym SC 16195A Sym SC

12175A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=16kA @ X/R=@3.11 32% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO MCC-136-C

(2 )Set of #600AWG/kcmil/Ph.

(65.0ft) Ampacity 840.0 A

MCC-136-C

480V, 800A 16377A Asym SC 14738A Sym SC

10919A SLG

Equip.Rating=42kA @X/R=4.90 Calc. SC=15kA @ X/R=@2.93 35% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MCC-136-C F1

BUSSMANN

LPS-RK

(200.0kA)

400.0AF/400.0AS

MCC-136-C F2

BUSSMANN

LPS-RK

(200.0kA)

200.0AF/125.0AS

FDR TO PP-1

(1 )Set of #1AWG/kcmil/Ph.

(200.0ft) Ampacity 130.0 A

PP-1

480V, 150A 5778A Asym SC 5776A Sym SC

3623A SLG

Equip.Rating=14kA @X/R=3.18 Calc. SC=6kA @ X/R=@0.77 41% Of Equip. Rating Equip.Status (Pass/Fail): Pass

PP-1 CB1

SIEMENS

BQD

(14.0kA)

60.0AF/60.0AS

Fixed

PP-1 MAIN CB

SIEMENS

ED4

(18.0kA)

125.0AF/125.0AS

Thermal Curve (Fixed) INST Fixed (800A)

CHILLER-3

750hp, 121FLA 4160V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=713A

TX TR-1 SEC

ATS-1 OP

4160V, 600A 2835A Asym SC 2062A Sym SC

2142A SLG

Equip.Rating=25kA @X/R=15.00 Calc. SC=2kA @ X/R=@7.77 9% Of Equip. Rating Equip.Status (Pass/Fail): Pass

GEN2

2000kW/2500.0kVA 480V X1=0.1378pu, X/R=26.2547 X2=0.1335pu, X/R=26.2547 X0=0.0980pu, X/R=26.2547

RMS 3P=21806A

RMS SLG=24410A

In/Out of Service: (In)

GEN2 CB

SIEMENS

WLL-3200

(100.0kA)

3200.0AF/3000.0AS

Plug 3000.0 A LTPU (0.4-1xS) 1 (3000A)

LTD (2-30S) 30

STPU (1.25-12xS) 6 (18000A) STD (0.02-0.4S) 0.4 (I^2t Out) INST (1.5-12xS) 8 (24000A)

FDR TO EDP-2

(7 )Set of #750AWG/kcmil/Ph.

(60.0ft) Ampacity 3325.0 A

GEN2 OP

480V, 3000A 34987A Asym SC 21806A Sym SC

24410A SLG

Equip.Rating=100kA @X/R=4.90 Calc. SC=30kA @ X/R=@26.25 30% Of Equip. Rating Equip.Status (Pass/Fail): Pass

EDP-2

480V, 3000A 33120A Asym SC 21158A Sym SC

23219A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=28kA @ X/R=@19.56 55% Of Equip. Rating Equip.Status (Pass/Fail): Pass

MTS-1 OP

480V, 1600A 48597A Asym SC 33440A Sym SC

30004A SLG

Equip.Rating=50kA @X/R=4.90 Calc. SC=38kA @ X/R=@10.70 76% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO MCC-136-A P#1

(1 )Set of #3/0AWG/kcmil/Ph.

(60.0ft) Ampacity 200.0 A

P#1 200hp, 280FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=1644A

FDR TO MCC-136-A P#2

(1 )Set of #3/0AWG/kcmil/Ph.

(60.0ft) Ampacity 200.0 A

P#2 200hp, 280FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=0A

FDR TO MCC-136-B P#4

(1 )Set of #3/0AWG/kcmil/Ph.

(50.0ft) Ampacity 200.0 A

P#4 60hp, 84FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=492A

FDR TO MCC-136-B P#5

(1 )Set of #3/0AWG/kcmil/Ph.

(50.0ft) Ampacity 200.0 A

P#5 60hp, 84FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=492A

FDR TO MCC-136-B P#7

(1 )Set of #3/0AWG/kcmil/Ph.

(110.0ft) Ampacity 200.0 A

P#7 100hp, 140FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=821A

FDR TO MCC-136-B P#8

(1 )Set of #3/0AWG/kcmil/Ph.

(110.0ft) Ampacity 200.0 A

P#8 100hp, 140FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=821A

FDR TO MCC-136-B P#9

(1 )Set of #3/0AWG/kcmil/Ph.

(100.0ft) Ampacity 200.0 A

P#9 75hp, 105FLA 480V, 4 Pole 0.8pfLag, 0.8eff

RMS 3P=616A

FDR TO ATS-6 E

(2 )Set of #10AWG/kcmil/Ph.

(270.0ft) Ampacity 60.0 A

EN

ATS-6

ATS-6 OP

480V, 100A 1330A Asym SC 1330A Sym SC

777A SLG

Equip.Rating=14kA @X/R=3.18 Calc. SC=1kA @ X/R=@0.11 9% Of Equip. Rating Equip.Status (Pass/Fail): Pass

FDR TO ATS-7 E

(2 )Set of #10AWG/kcmil/Ph.

(270.0ft) Ampacity 60.0 A

EN

ATS-7

ATS-7 OP

480V, 100A 1330A Asym SC 1330A Sym SC

777A SLG

Equip.Rating=14kA @X/R=3.18 Calc. SC=1kA @ X/R=@0.11 9% Of Equip. Rating Equip.Status (Pass/Fail): Pass

POWER SYSTEM

STUDY SINGLE LINE

FOR

LYONS VA

VAMC LYONS, NJ

PERFORMED BY

TRIAD C.E.I.

MORRIS PLAINS, NJ

REV - 6/1/09

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

6.0 REFERENCES

LYONS VA HEALTHCARE TRIAD JOB#CEI085065

POWER SYSTEM STUDY REV. DATE: 6/1/09

The program calculates the three phase and unbalanced fault values for each condition throughout the system using the calculation methodology specified by the ANSI/IEEE standards C37.13-1981 Standard for Low-Voltage AC Power Circuit Breakers, C37.010- 1979 Application Guide for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis, and C37.50-1979 Guide for Calculation of Fault Currents for Application of AC High-Voltage Circuit Breakers Rated on Either a Symmetrical or a Total Current Basis. The program accounts for all impedance values between a fault location on each bus in the system and contributions from the utility and motor sources. At each location, the fault currents, system X/R ratio, and equivalent fault impedance to ground (R + jX), in ohms, are reported, thus providing a concise view of the conditions that may exist.

Balanced Faults - The program's three phase fault analysis calculates three phase RMS symmetrical fault duties by use of a network method of solution. The power distribution system is modeled by the matrix equation:

[E] = [I] * [Z]

[E] = bus voltage matrix [I] = bus nodal current matrix [Z] =…