Appendix E - Drawings.pdf

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Transformer and Substation
Solicitation number
RFP-A25-1118-v2
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This document is an electrical riser diagram and power plan for the Ames Laboratory Metals Development Room 150, dated March 27, 2025. The drawing details a new Unit Substation #3 with a 1500kVA transformer, configured for 4160 Delta to 480Y/277V conversion, featuring a 2000A bus rating and Square D switchgear. The electrical system includes specific technical specifications such as NEMA 1 enclosure, infrared viewing windows, physical interlocks for safety, and metering capabilities with a Square D METSEPM5563RD meter and future remote monitoring connection.

The load calculation table shows equipment power requirements, with six circuit breakers serving various plasma arc and equipment power supplies. The total connected load is 1,716 kVA, with equipment loads ranging from 186,840 VA to 538,100 VA. The switchgear is located in Room 241C, supplied from Transformer T-3, with a 65kA short circuit current rating (SCCR) and configured for 3-phase, 4-wire wye system with solid grounding. The drawing also includes provisions for future expansion sections and detailed mounting and wiring specifications.

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Other files

File Type Posted
RFP A25-1118 Metals Develpment 150 - Substation.pdf PDF
Appendix D-9 IPP (Commercial Supplies and Services Requiring Delivery of Data).pdf PDF
Appendix A - Term and Conditions for FP Commercial Products and Commercial Services dated 3-12-2024.pdf PDF
Appendix B - SOW A25-1118.pdf PDF
Appendix C - Equipment Specifications A25-1118.pdf PDF
Appendix F - REPRESENTATIONS AND CERTIFICATIONS SUPPLEMENTAL.pdf PDF

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T

T

T

HVS#3

XFMR T-3

4160 DELTA

1500kVA

480Y/277V 3P 4W

4160V 3P, 4W WYE

SOLIDLY GROUNDED

SQUARE D HVLcc LOAD

INTERRUPTER SWITCH W/

300A FUSES

PD-LAB

277/480V SWITCHGEAR

2000A BUS RATING

IN

C

O M

IN

G

S

EC

T

IO

N

S1

S3

S4

T1

T2

T3

T4

U1

U2

U3

U4

V1

V2

V3

V4

W1

W2

W3

W4

NEW UNIT SUBSTATION #3

3#4/0

2000A BUS DUCT 4P + G ALUMINUM

2000A/3P

LSIG

SECOND FLOOR

UNIT SUBSTATION #3 NOTES

NEMA 1 ENCLOSURE

INFRARED VIEWING WINDOWS:

1. MV SWITCH BUS COMPARTMENT

2. MV SWITCH CABLE/FUSE COMPARTMENT

3. TRANSFORMER ENCLOSURE.

PHYSICAL INTERLOCKS

1. PROVIDE KIRK KEYS ON MV SWITCH AND SECONDARY MAIN

BREAKERS TO PREVENT OPERATION OF MV SWITCH WHEN SECONDARY

MAIN BREAKER IS CLOSED. MAIN BREAKER MAY BE RECLOSED WHEN

HVS SWITCH IS LOCKED OPEN.

2. PROVIDE KIRK KEY ON TRANSFORMER ENCLOSURE TO PREVENT

ACCESS INTO TRANSFORMER ENCLOSURE WHEN MV SWITCH IS

CLOSED. LOCATE KEY FOR TRANSFORMER ENCLOSURE INSIDE MV

SWITCH FUSE COMPARTMENT.

METERING

1. PROVIDE SQUARE D METSEPM5563RD METER AND DISPLAY.

PROVIDE PT'S AND CT'S AT TRANSFORMER SECONDARY BUS, 4-POLE

SHORTING BLOCK TO SECONDARY BREAKER PANEL COVER.

2. PROVIDE A 6' CAT6 PATCH CABLE FROM ETHERNET

COMMUNICATION PORT TO A 6"X6"X4" JUNTION BOX MOUNTED ON TOP

OF SWITCHGEAR FOR FUTURE REMOTE MONITORING CONNECTION.

COIL AND SECURE CAT 6 CABLE SLACK IN JUNCTION BOX. LABEL AS

"METER PM5563 ETHERNET CONNECTION PORT."

3. PROVIDE METERING CAPABILITIES ON BRANCH BREAKERS IN

PD-LAB DISTRIBUTION SECTION.

FUTURE

SECTIONS

SQUARE D

POWERZONE 4

DRAWOUT

SWITCHGEAR

E

F

G

H

I

J

K

6 7 8

P D

-4

E

7/

0V

U N

IT

S

U B

S T

A T

IO

N

P D

-2

E

0/

8V

2000A SECONDARY

BREAKER

PD-LAB

277/480V

PF-19 (E)

LF-5 (E)

EM PD 3 (E)

EM PD 2 (E)

EM PD 1 (E)

FUTURE WALL

XFMR T-3

DRAW OUT

BRKRS @

FRONT

BUSSING AND

CABLE

TERMINATIONS

IN REAR

HVS #3

2000A BUS

4" CONCRETE HOUSEKEEPING PAD

ATS (E)

FU

T

U R

E

FU

T

U R

E

Consultant

Revision Record

Print Record

1615 Golden Aspen Drive Suite 110 Ames, Iowa 50010

515 292 6075 Phone 515 292 6370 Fax mail@rmharchitects.com www.rmharchitects.com

Project Number

RESOURCE CONSULTING

ENGINEERS, LLC

301 ALEXANDER SUITE C

AMES, IA 50010

515-292-2500

WWW.RESOURCECE.COM

E1.OEP

ELECTRICAL GEAR PACKAGE

AMES LAB - METALS

DEVELOPMENT ROOM 150

03/27/25BID ISSUE

03/27/25

24023

2415 PAMMEL DR,

AMES IA 50011

NOT TO SCALE

ELECTRICAL RISER DIAGRAM

TOTAL EMD (A): 1672

Cooling 20478 VA 100.00% 20478 VA TOTAL CONN. (A): 2064

LTG 2350 VA 125.00% 2938 VA TOTAL EMD (KVA): 1390

EQMT 1668985 VA 80.00% 1335188 VA TOTAL CONN. (KVA): 1716

Motor 28254 VA 125.00% 35318 VA

LOAD CLASS CONNECTD LO... DEMAND FACTOR EMD (VA) TOTALS

A = AFCI TYPE CB, G = GFCI TYPE CB, S = SHUNT TRIP TYPE CB

REMARKS

TOTAL (A): 2064

TOTAL (KVA): 1716

10 -- SPARE 3 800 400 0 --

9 -- SPARE 3 800 800 0 --

8 -- SPARE 1 800 800 0 --

7 -- SPARE 1 800 800 0 --

6 Motor; Spare;... DP150 3 800 800 118212

5 EQMT EB1-150 CNTRL/PWR DIST CABINET (EQ# L1B) 3 800 250 207600

4 EQMT EB1-150 PWR SUPPY (EQ# L1A) 3 800 350 186840

3 EQMT PLASMA ARC INDUCTION PWR SUPPLY (EQ# L2B) 3 800 700 437500

2 EQMT PLASMA ARC FURNACE (EQ# L2A) 3 800 300 228360

1 EQMT PLASMA ARC TORCH PWR SUPPLY (EQ# L2C) 3 1600 900 538100

CKT LOAD CLASS DESCRIPTION POLES FRAME (A) TRIP (A) LOAD (VA) REMARKS

SWITCHGEAR NOTES

ENCLOSURE: NEMA 1

MOUNTING: PAD WIRE: 4 BUS RATING(A): 2000

SUPPLY FROM: T-3 PHASE: 3 MAINS TYPE: MLO

LOCATION: RM 241C VOLTAGE: 480Y/277 SCCR (KA): 65

SWITCHGEAR: PD-LAB

N

1/4" = 1'-0"

LEVEL 2 - ELECTRICAL ROOM - POWER PLAN - early package

05/21/25BID ISSUE

jenny.olson Line jenny.olson Line

Sheets
E1.OEP - ELECTRICAL GEAR PACKAGE

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