1-RFI (Req for Expressions of Interest) Traction Power Substation.pdf

METROPOLITAN TRANSIT AUTHORITY (METRO)

REQUEST FOR EXPRESSIONS OF INTEREST

FOR

TRACTION POWER SUBSTATION

RFI NO. Doc2159754403

The Metropolitan Transit Authority of Harris County, Texas, requests Expressions of Interest (RFI) submissions from firms interested in providing Design-Build Traction Power Substation Station

Please submit RFI Responses and questions regarding this RFI electronically through METRO’s Bonfire hub at https://ridemetro.bonfirehub.com AND one (1) hardcopy of the submittal to the address below no later than 2:00 p.m. local time, May 28, 2026 to

Metropolitan Transit Authority Procurement Division, 8th Floor

1900 Main Street Houston, Texas 77002 https://ridemetro.bonfirehub.com/

Doc2159754403

TABLE OF CONTENTS

BACKGROUND

RFI RESPONSE REQUIREMENTS

EXHIBITS

EXHIBIT A: RESPONDER INFORMATION

EXHIBIT B: RFI QUESTIONAIRE

EXHIBIT C: DRAWINGS 6

1.0 BACKGROUND:

The Metropolitan Transit Authority of Harris County (METRO) is conducting a Request for Information (RFI) from interested parties regarding Substation Hardware Replacement. Metro is evaluating procurement strategies for replacement of hardware within existing traction power substations. Current design is approximately 30% complete.

Due to the hardware and installation driven nature of the work, METRO is considering offering this contract as a Progressive Design-Build to integrate the hardware manufacturer and installer into the design process and have a single point of responsibility and delivery.

REGISTER TO BECOME A SUPPLIER WITH METROPOLITAN TRANSIT AUTHORITY OF HARRIS COUNTY:

METRO has recently migrated to Ariba, and your account needs to be set up with our AP department for payments and purchasing. Please register as a vendor in our SAP Procurement System at METRO Supplier Self-Registration Page to receive email notifications of upcoming METRO opportunities.

2.0 RFI RESPONSE REQUIREMENTS

Responder’s response must include a completed:

Exhibit A: Responder Information

Exhibit B: RFI Questionnaire

Exhibit C: Progress Drawing Exhibits for Reference in Request for Information (RFI)

2.1 Important Processing Dates

METRO anticipates carrying out the procurement process in accordance with the schedule set forth in the table below.

All times are in the central time zone, times unless otherwise indicated. The schedule is subject to modification at the sole discretion of METRO. Respondents will be notified of any changes to the due date for questions or due date for the RFI submittals by an amendment to this RFI.

PROCUREMENT SCHEDULE

Procurement Activity Date (subject to change)

Time-Central Standard

RFI issued 4/30/2026 4:00 p.m.

Deadline for submission of Bidder questions to METRO’s Bonfire Hub

5/15/2026 5:00 p.m.

Responses to Bidders Q&A published by METRO on Bonfire Hub 5/20/2026 5:00 p.m.

RFI Response Due Date 5/28/2026 2:00 p.m.

2.2 Questions

All written questions related to this RFI will be accepted until 5:00 PM Central Standard Time on Friday, May 15, 2026. Submit questions via Bonfire hub. Response to questions to be answered by 5:00PM Central Standard Time, Wednesday, May 20, 2026

2.3 Response Due Date

Responses to this RFI will be receive by METRO until 2:00PM Central Standard Time, Thursday, May 28, 2026.

The Response must be submitted as follows:

ONE (1) ELECTRONIC SUBMITTAL, in PDF format, submitted via Bonfire hub at https://ridemetro.bonfirehub.com and

ONE (1) HARD COPY SUBMITTAL, in a sealed envelope bearing the name and address of the Responder and the identification RFI No. Doc2159754403 delivered to:

METROPOLITAN TRANSIT AUTHORITY OF HARRIS COUNTY, TEXAS

Attn: Je rome Sco t t

3.0 EXHIBITS

EXHIBIT A: RESPONDER INFORMATION

Instructions: Please complete this form and include it with the Response.

Company Name: _____________________________________

Date of Incorporation: _____________________________________

Mailing Address: _____________________________________

Company Phone Number: _____________________________________

Company Web Site: _____________________________________

Approx. Number of Employees: _________________________________

Person responsible for the information contained in RFI Response

Name: ______________________________________

Title: ______________________________________

Direct Phone Number: ______________________________________

Email: ______________________________________

Required Detailed Response:

Company Experience, Information about the contractor's experience with similar roofing projects.

Company Qualifications: Details about the contractor's qualifications, licenses, and insurance.

Methodology: Describe how your company will approach the project?

EXHIBIT B: RFI QUESTIONNAIRE

Instructions: Provide a response to the questions Exhibit B and include it in the Response. A response to each question is requested but not mandatory. Please do not renumber or reorder the questions.

Metropolitan Transit Authority of Harris County Rail Operations + Maintenance of Way Rail Vehicle Maintenance Division Infrastructure Improvements

Request for Information Substation Hardware Replacement

Substation Hardware Replacement

INTRODUCTION Exhibits B Houston METRO is evaluating procurement strategies for replacement of hardware within existing traction power substations. Current design is approximately 30% complete. Due to the hardware and installation driven nature of the work, METRO is considering offering this contract as a Progressive Design-Build to integrate the hardware manufacturer and installer into the design process and have a single point of responsibility and delivery.

SECTION 1 – Delivery Method (Progressive Design-Build)

1. Market Interest Is your firm interested in pursuing this project under a Progressive Design-Build (PDB) delivery model?

☐ YES

☐ NO

Would you prefer PDB over standard Design-Bid-Build, either Invitation for Bid (IFB) or Competitive Sealed Proposal (CSP)? Why?

2. Standard Structure What level of design completion do you believe is optimal to be able to price the work as a standard Design- Bid-Build?

Given design is currently approximately 30% [referenced here], what additional information would you require to price risk appropriately?

Rail Vehicle Maintenance Division Infrastructure Improvements

Request for Information Substation Hardware Replacement

3. Progressive Structure Do you support a two-phase PDB approach (Pre-construction Phase + GMP Phase)?

☐ YES

☐ NO

Are you comfortable setting a Guaranteed Maximum Price (GMP) at approximately 90% design?

☐ YES

☐ NO

What level of design completion do you believe is optimal before establishing GMP for substation hardware replacement?

4. Off-Ramp Language Would your firm accept an “Off-Ramp” provision allowing METRO to:

• Terminate after Phase 1 if GMP is not accepted?

• Convert to competitive procurement if negotiations fail?

• What contractual protections would you request if off-ramps are included?

5. Risk Allocation What risks do you believe are best managed by the Owner vs. the Design-Builder for:

• Unknown existing conditions inside substations

• Utility coordination

• Long-lead electrical equipment

• Commissioning and integration

How should escalation and supply chain volatility be handled in a PDB structure?

Are there any other major risks that you think that METRO should address in the contract language?

Rail Vehicle Maintenance Division Infrastructure Improvements

Request for Information Substation Hardware

6. Electrical / Systems Expertise Does your firm self-perform traction power / substation design, or rely on specialty subcontractors?

Does your firm self-perform traction power / substation installation & integration, or rely on specialty subcontractors?

SECTION 2 – Shutdown / Outage Strategy

1. Outage Preference From a constructability and risk standpoint, do you recommend:

☐ A single extended shutdown per substation, or

☐ Multiple incremental outages?

Why:

2. Commissioning & Testing What duration should be assumed for commissioning and burn-in testing?

Rail Vehicle Maintenance Division Infrastructure Improvements

Request for Information Substation Hardware

SECTION 3 – Technical & Execution Risk

1. Long-Lead Equipment What equipment items (breakers, transformers, relays, SCADA components, protection panels, etc.) are currently long-lead?

Should procurement of major electrical equipment be advanced separately?

2. Constructability What field investigations are recommended prior to final pricing?

Note that when METRO bids this project out, regardless of structure, bidders will be offered 3D LiDAR (Point Cloud) and 360 Imagery Scans of every substation.

3. Schedule What is a realistic duration for:

• Phase 1 (Preconstruction)

• Procurement

• Installation

• Commissioning

4. Resources What are the levels of resources from your firm and or subcontractors needed for this work and how does the resource availability impact phasing and vice versa.

3/25/2026001 PROGRESS PRINT SET FOR RFI

METROPOLITAN TRANSIT AUTHORITY OF HARRIS COUNTY, TEXAS

TRACTION POWER

SUBSTATION STATION

HARDWARE REPLACEMENT/UPGRADE

& CONTROL SYSTEM UPDATE

PROGRESS DRAWING EXHIBITS FOR

REFERENCE IN REQUEST FOR INFORMATION

Y-YELLOW, BL-BLUE

METER W/POWER SUPPLY

ANALOG / DIGITAL

PO

W

ER

SU

PP

LY

A

CIRCUIT BREAKER

DRAWOUT VT WITH FUSE

TEST BLOCK

COUNTER

LED

RESISTORRES

VARIABLE RESISTOR

or or

SCHEMATIC DIAGRAM SYMBOLS

MICRO SWITCH

(S01, S02, 33)

K

SELECTOR SWITCH

(CS, 43, S1, S3)

MANUAL SWITCH

KEY OPERATED

(S2, S4, S5, S6, S7)

OPTO ISOLATOR

DEVICE OPERATION

SHIELDED CABLE

INDICATOR, G-GREEN, R-RED,

R

TWISTED PAIR

JUMPER

Q0.1

PLC INPUT

PLC OUTPUT

QUANTITY AND SIZE OF CONDUCTOR

TEFLON INSULATED CONDUCTOR>2KV

BATTERY

GROUND CONNECTION

CONDUCTOR CONNECTION

POWER RECTIFIER OR DIODE

6-1/c 500kCMIL (kCMIL SAME AS MCM)

AUXILIARY RELAY COILK

w/ SERIES TRIP DEVICE

DRAW-OUT TYPE

ABOVE LINE AND

FRAME SIZE INDICATED

LINE IN AMPS

3-POLE, DRAW-OUT TYPE

15kV CIRCUIT BREAKER, ISOLATING DEVICE (TYPICAL) a c

(3Ø MADE UP NEUTRAL)

TERMINATION

SINGLE LINE DIAGRAM SYMBOLS SCHEMATIC DIAGRAM SYMBOLS

CHASSIS CONNECTION

PANEL CIRCUIT BREAKER,

TRIP VALUE BELOW

DC CIRCUIT BREAKER72

VOLTMETER

AMMETER

VT

K

CT

TRANSFORMER

3 PHASE, DELTA,

VOLTAGE TRANSDUCER

KEY INTERLOCK

TEST TERMINALS

VOLTAGE OR CURRENT

TRANSDUCER

ANSI DEVICE NUMBER

SINGLE LINE DIAGRAM SYMBOLS

CURRENT TRANSDUCER

MOTORIZED, NO-LOAD BREAK TYPE

EQUIPMENT ENCLOSURE OUTLINE

MANUAL PUSHBUTTON SWITCH -

MANUAL PUSHBUTTON SWITCH -

CLOSED WHEN ACTUATING DEVICE IS

DEVICE AUXILIARY SWITCH CONTACT -

OPEN WHEN ACTUATING DEVICE IS

DEVICE AUXILIARY SWITCH CONTACT -

RELAY INFLUENCE LINE

DIRECTION OF CONTROL OR

NORMALLY OPEN

NORMALLY CLOSED

CURRENT TRANSFORMER600/200-5

(TYPICAL FOR ANSI-

12 PULSE

(TYPICAL FOR IEEE 1653.2

CIRCUIT No. 31)

INTERPHASE TRANSFORMER

CONNECTED ON THE 200:5 TAPMR

TRANSFORMER

M

NUMBER DENOTES QUANTITY

VOLTAGE TRANSFORMER,

NUMBER INDICATES QUANTITY

CURRENT TRANSFORMER,

TERMINAL BLOCK

MULTI-RATIO 600:5

RECTIFIER TRANSFORMER,

CIRCUIT No. 31) DISCONNECT SWITCH

DISCONNECT SWITCH

MANUAL, NO-LOAD BREAK TYPE

THERMOCOUPLE

DC SHUNT

CONNECTION

FUSE

SA

CABLE STRESS

SURGE ARRESTOR

LIGHTNING OR

TRANSFORMER

3 PHASE, WYE,

w/ GROUND CONNECTION

CONE TERMINATION

CONNECTION

NON-OPERATED OR DE-ENERGIZED STATE

NON-OPERATED OR DE-ENERGIZED STATE

FLEXIBLE Cu CONDUCTOR (OR) BRAID >120mm

A

V

NEGATIVE GROUNDING DEVICE57

148 INCOMPLETE SEQUENCE RELAY

72-0 DC MAIN BREAKERF0

72-1 FEEDER BREAKERF1

F2 72-2 FEEDER BREAKER

F3 72-3 FEEDER BREAKER

DC PANELDP1

DC CONTACTORDCC

ST SHUNT TRIP

LOCAL - OFF - REMOTE

AUXILIARY RELAY FOR SHUNT TRIPKST

DS DOOR SWITCH

ELECTRONIC TEMPERATURE MONITORETM

E DC CIRCUIT BREAKER OPERATING SOLENOID

DC CIRCUIT BREAKER TRUCKBT

ALARMAL

S-A SCADA - ANALOG

95X TRANSFORMER TEMPERATURE AUXILIARY RELAY

UVTDS

UVTDC

CS/CL

CS/TR

LOR

AC PANEL

72-4 FEEDER BREAKER

RECTIFIER

NEGATIVE DISCONNECT SWITCHN

F4 R

EQUIPMENT

API

SA SURGE ARRESTOR

85TX TRANSFER TRIP TRANSMIT

SCADA LOCAL / REMOTE SWITCH43L/R

AUXILIARY POWER STATION

AMPERE

DESCRIPTION

BUFFER AMPLIFIER

COUNTER, CONTROL

DIGITAL PROTECTION UNIT

FUSE, CIRCUIT BREAKER

FIBER OPTIC

FEEDER MONITORING RELAY

INDICATOR

CURRENT (EUROPEAN SYMBOL)

AUXILIARY RELAY

LOCAL ANNUNCIATOR PANEL

OVERHEAD CONTACT SYSTEM

OPERATOR

PLUG (CONNECTOR)

PROGRAMABLE LOGIC CONTROLLER

PANEL METER

COMPONENT IDENTIFICATION

MECHANISM OPERATED CELL SWITCH (BREAKER STATUS)

JACK (CONNECTOR)

RESISTOR

SWITCH

SUPERVISORY CONTROL AND DATA ACQUISTION

SCADA TRIP & CLOSE

VOLTAGE (EUROPEAN SYMBOL)

VOLTAGE

VOLTAGE DIVIDER

WIRE NUMBER

TERMINAL BLOCK OR DC BREAKER DISCONNECT DEVICE

TRUCK OPERATED CELL SWITCH (TRUCK POSITION)

TRACTION POWER TRANSFORMER

HV INTERUPTING DEVICE

RECTIFIER DIODE OVERTEMPERATURE, ALARM

RECTIFIER DIODE OVERTEMPERATURE, TRIP

TRANSFORMER WINDING OVERTEMPERATURE, ALARM

TRANSFORMER WINDING OVERTEMPERATURE, TRIP

50/51 PHASE FAULT TIME OVERCURRENT RELAY

50/51 N

WITH INSTANTANEOUS ELEMENT

GROUND FAULT TIME OVERCURRENT RELAY

WITH INSTANTANEOUS ELEMENT

AC CIRCUIT BREAKER

FRAME FAULT RELAY

AC OVERVOLTAGE RELAY

DC FEEDER BREAKER

DC FEEDER DIRECT ACTING TRIP DEVICE76

ANSI DEVICE TABLE

NUMBER

26R2

49T2

EMERGENCY STOP PUSHBUTTON

AC SUPPLY UNDERVOLTAGE

REVERSE CURRENT INSTANTANEOUS RELAY

DC EQUIPMENT DOOR INTERLOCK DEVICE

NEGATIVE SEQUENCE VOLTAGE

RECTIFIER OVERLOAD RELAY

ANNUNCIATOR

51A

49T1

DESCRIPTION

26R1

APS

A

BA

F

H

K

OP

P

PM

J

150R

186H

LINE TEST RECLOSING RELAY

DC LOCKOUT RELAY, HAND RESET

AC LOCKOUT RELAY, HAND RESET

POSITIVE DISCONNECT SWITCH

NEGATIVE DISCONNECT SWITCH

DC FEEDER RATE OF RISE RELAY

89N

86H 89P

TRANSFER TRIP RECEIVE85RX

DIODE FUSE MONITOR ALARM98-1

98-2 DIODE FUSE MONITOR TRIP

EMERGENCY TRIP SWITCHETS

SHORT CIRCUIT DEVICESCD

S03 COMPONENT IDENTIFICATION

R S

U

V

VD

X

TRANSFORMER OIL LEVEL TRIP71Q2

71Q1 TRANSFORMER OIL LEVEL ALARM

63-1 TRANSFORMER SUDDEN PRESSURE ALARM

TRANSFORMER OIL TEMPERATURE ALARM26Q1

TRANSFORMER OIL TEMPERATURE TRIP26Q2

DC FEEDER LOAD MEASURING FOR LINE TEST182

Q

DIAGRAM, DEVICE TABLE

NUMBER

CTR

DPU

F/O

FMR

LAP

MOC

OCS

PLC

SCADA

S-T & C

K03

TOC

WN

TPT

186 DC LOCKOUT RELAY

DC UNDERVOLTAGE127

150 DC INSTANTANEOUS OVERCURRENT RELAY

151 DC LONG TIME OVERCURRENT RELAY

159 DC OVERVOLTAGE RELAY

MAINTENANCE MODE SWITCH43MM

TRANSFER TRIP SWITCH43TT

CONTROL CONTROL / CLOSE

CONTROL CONTROL / TRIP

INTELLIGENT TEMPERATURE MONITORITM

FIRE ALARMFA

UNDERVOLTAGE TRIP DEVICE COIL

UNDERVOLTAGE TRIP DEVICE SOLENOID

63-2 TRANSFORMER SUDDEN PRESSURE TRIP

S-ETS SCADA - EMERGENCY TRIP SHUTDOWN

12.47TRUXILLO60

PIERCE

FRANKLIN80

34.5

34.5

VOLTAGE

YARD

BELLFORT

EL PASEO

BRAYS

WICHITA

TMC40

YD

12.47

12.47

34.5

12.47

12.47

12.47

(kV)

NAME

TABLE 1

No.

UTILITY

85RX85TX

FEEDER 1

(NOTE 2)

FEEDER

FEEDER

FEEDER

TO OCS

DC POSITIVE BUS, 750Vdc, 2000A

176176

172-4172-3

176176

172-2 2000A 172-1

182150R

SA

V

89N64L64G

DC NEGATIVE BUS, 2000A

(NOTE 4)

S-T&C (NOTE 1) 2000A

S-T&C

1200A

27A

SA

150KVA

AC PANEL AP1

SWARTZ

600AF

500AT

TABLE 1 / 208-120

1087KVA

TABLE 1 / 2X587

(NOTE 8)

72-0

K

K

SA

SA

T13

SA

SA

T24

S4S3S2S1

NGD

AUXILIARY POWER

TRANSFORMER

12.47 KV

34.5 KV

INCOMING UTILITY FEEDER, 3PH, 3W

(SEE TABLE 1)

PT 3

51N 50/ A 51A 51

50/

59 47 V27

AC

MFPR

186H 32

64G

64L 33N 33R 4949

R2

T1 T2

33T

R1

-2-15

FA

HVAC

-1

49H

AMB

HVAC

-2

TPT

SIGNALSRECTIFIER

CUBICLE

SIGNALS

NEGATIVE

CUBICLE

SIGNALS

MAIN DC

CUBICLE

SIGNALS

BUILDING

SIGNALS

L/R

186H

IEEE 1653.2

CIRCUIT NO 31

RECTIFIER UNIT

1MW

A V

159150148

VT

NEG.

REF.

TRANSFER TRIP SEND / RECEIVE

TO / FROM ADJACENT TPSS

VT

A

V

NEGATIVE

RETURN

CABLES TO

RUNNING

RAILS OR

IMPENDENCE

BONDS

PROVISION FOR NEGATIVE

DRAINAGE CABLES

DC SWGR

ENCLOSURE

FO

DC

MFPR

SCALE

0-1000V

COMMUNICATIONS

POWER SUPPLY

LOCATED IN SIGNAL &

COM. BUILDING

SUBSTATION

POWER

SUPPLY

STATION CONTROL CABINET PLC

NOTES:

1. KEY INTERLOCK PREVENTS OPENING OF 89N DEVICE UNLESS

MAIN DC BREAKER IS OPEN.

2. PROTECTIVE DEVICES AND INSTRUMENTS FOR FEEDER

BREAKERS ARE IDENTICAL TO FEEDER 1.

3. CURRENT AND POTENTIAL TRANSFORMERS AND UTILITY

METERING PROVIDED BY THE UTILITY.

4. DEVICE 32 FUNCTION IS PART OF DC MFPR

PROGRAM SEQUENCE:

- ENERGIZE AC LOCKOUT ~ 86H

- TRIP & LOCKOUT AC BREAKER

- OPEN MAIN DC BREAKER

5. 186H HAND RESET LOCKOUT RELAY LOCATED IN 72-0 CUBICLE.

6. 86 ENERGIZED FOR:

- REV CURRENT (32)

- DC EQUIPMENT DOOR OPEN (33N, 33R)

- RECTIFIER TRIP FUNCTIONS (26-R2, 98-2)

- XFMR TRIP FUNCTIONS (33T, 49-T2)

- DC LOCKOUT (186H)

7. 186H ENERGIZED FOR:

- ETS & FIRE (5, FA)

- DC EQUIPMENT DOOR OPEN (33N, 33R)

- FRAME FAULT (64L)

- INCOMPLETE SEQUENCE (148)

8. KEY INTERLOCK PREVENTS TO FUSES UNLESS PNL AP1 MAIN

ACCESS BREAKER IS OPEN.

9. 43 L/R LOCATED ON EACH AC AND DC BREAKER CUBICLE.

10. TRANSFORMER OIL HIGH TEMPERATURE (26Q1) AND HIGH

PRESSURE (71Q1) ALARMS ARE FOR YARD TPSS ONLY.

11. NEGATIVE GROUNDING DEVICE IS FOR MAIN LINE TPSS ONLY.

12. 43MM AND 43TT LOCATED ON SCC.

(NOTE 5)

AA V

DC MFPR

VT

S-T&C

TT

MM

49L

AMB

Q1

Q1

(SEE NOTE 10)

(SEE NOTE 11)

NOTE 12

NOTE 12

NOTE 9

Q2

Q2

-1

-2

S-ETS

S-ETS

A1

RELAY

COMP.

CONTROL

POWER

COMPARTMENT

REAR

CABLE

COMP.

LOAD SIDE

TERMINALS

TERMINALS

LINE SIDE

38"

38"

90"

48"

BARRIER

BARRIER

TOP VIEW

FRONT VIEW SIDE VIEW

TB2

TB1

RE

S1 S2

1/4" GLASTIC

FROM TOP

(CABLE ENTRY

CABLE

SUPPORT

CABLE

SUPPORT

SUPPORT

FOR BUS

FROM TOP)

(CABLE ENTRY

CT WIRING

AMMETER VOLTMETER

1.50

0.56 DIA. HOLES (2)

(TWO NEMA

2 HOLE 250MCM LUGS)

LINE/LOAD TERMINAL DETAIL

1/4" GLASTIC

LOAD & LINE

SIDE TERMINALS

SUPPORT FOR BUS

SUPPORT

FOR CT'S

2.5

7.5

20.0

30.0

20.0

7.5

TYPICAL BOLTDOWN

HOLE PROVISION

2.234

.50 DIA.

48"

1.75 .633.125

11 1/8"

13 1/2"

NEW POWER

MONITOR

18'

LV section

HV section

Contactor Pnl

Contactor Pnl

Rectifier

DC BKR

FDR #1

B a tt e ry

Charger

3'-3

" 1'-11

5'

D C

P n l

Grounding

Bar

AC Switchgear

Transformr

Rectifier

4'-6"

Front

3'-2"

BREAKER

REMOVAL

AREA

7' 2'-8

NEW BATTERY

CHARGER

NEW TEMP.

MONITOR

B a tt e ry

D is c o n n e c t

NEW POWER

METER

FRONT VIEW

7'-25 8"

AB

AB

SIEMENS FEEDER BREAKER TP-SHP

1'-115 8"

Y

AV

N5 N6

MFPR

N8N7

Y Y Y N1 N2 N3 N4

186H LOCKOUT

ENGRAVING

REC TEMP ALARM

OPEN / CLOSE

XFMR TEMP ALARM

REC DIODE FAIL

GROUP ALARM

N8

N5

N4

N3

N2

N1

ITEM

N6

N7

VOLTMETER

AMMETER

FEEDER BREAKER

SECTION

FAR #4

DC

BREAKER

FAR #3

DC

BREAKER

FAR #1

DC

BREAKER

FAR #2

DC

BREAKER

RECTIFIER

NEGATIVE

RETURN

SECTION

F2F3F4 F1 F0 R N

ACU1

ACU2

AP1DP1

BC

1" PVC CONDUIT

FOR (1) FIBER

OPTIC CABLE

1" EMT CONDUIT

FOR (1) FIBER

OPTIC CABLE

1" EMT CONDUIT

FOR (1) SHIELDED

COAXIAL CABLE

MAIN

DC BREAKERNON-METALIC

4"X4"WW

4' -3

1" EMT CONDUIT

FOR (1) SHIELDED

COAXIAL CABLE

AP1: 208/120 VAC DISTRIBUTION PANEL

BC: BATTERY CHARGER

F0: MAIN DC BREAKER

ACU1: AIR CONDITIONING UNIT #1

F1: FEEDER BREAKER #1

M: S7-PLC IN F0 CUBICLE

T: RECTIFIER TRANSFORMER

COMM: COMMUNICATIONS BLDG.

ACU2: AIR CONDITIONING UNIT #2

DP1: 125 VDC DISTRIBUTION PANEL

SAP: SCADA AND ANNUNCIATOR PANEL

ETS: EMERGENCY TRIP SWITCH

EL: EMERGENCY LIGHT

FA: FIRE ALARM

H1: AC BREAKER

LEGEND

HVAC

UNIT#1

15-TON

SPARE PARTS

CABINET

DOCUMENT

CABINET

HVAC

UNIT#2

15-TON

AC BREAKER

TEST BOX

AC

PANEL P1

6070 DOOR W/12"

TRANSOM

OCS DISCONNECT SWITCHES

(TYP 2)

DOOR

ACTIVE INACTIVE

FIELD INSTALLED SURGE

ARRESTOR BOXES (TYP 5)

TEMPERATURE

CONTROL

43'-11"

'-6

BU

IL

D

IN

G

BUILDING

MAIN

AC BREAKER

150KVA

AUXILIARY

TRANSFORMER

1,087KVA

RECTIFIER

TRANSFORMER

RT01

H V

LV

CONTROL ACCESS

PANEL

DC

PANEL P2

BATTERY

DISCONNECT

FOLD DOWN

TABLE TOP

BATTERY RACK

W/COMPOSITION

BOARD FOLD DOWN

TABLE

WALL MOUNTED

TELEPHONE

DEVICE

NEW TEMP.

MONITOR

NEW BATTERY

CHARGER

NEW NEGATIVE

GROUNDING

DEVICE (NGD)

NEW TEMP.

MONITOR

NEW DC BREAKER

TEST BOX

REPLACE EXISTING PLC & SCADA

INTERFACE CABINET WITH NEW

STATION CONTROL CABINET (SCC)

EPOXY

17'-11"

36'-0"

FIRE

EXTINGUISHER

(TYP 2)

'-3

6"3" 1'-8"

6" 2'-0"

2'-6"

[25#] EACH

DC

PANEL P2DOCUMENT

CABINET

[200#]

[100#]

SPARE PARTS

CABINET

(FLOOR MOUNTED)

[200#]

3'-7"

6" 1'-5"

6" 1'-9"

BATTERY RACK

WITH COMPOSITION

BOARD FOLD DOWN

TABLE

1' -8

BATTERY

DISC

[47#]

BATTERY

CHARGER

[460#]

1' -9

[1,000#]

3' -0

2"

3' -0

7"

1'-11 5/8" 1'-11 5/8"

[500#]

1'-11 5/8"

FDR #2

DC

BREAKER

15'-5 7/16"

OCS DISCONNECT SWITCHES

(TYP 2)

HVAC

UNIT#1

10-TON

[960#]

[500#]

FDR #3

DC

BREAKER

[500#]

FDR #4

DC

BREAKER

INSULATED

BARRIER

2'-11 7/16"

[500#]

FDR #1

DC

BREAKER

[500#]

MAIN

DC

BREAKER

1'-11 5/8"

[1,500#]

RECTIFIER

NEGATIVE

RETURN

SECTION

[1,000#]

1'-10 9/16"

NO EPOXY

3"

6"

2'-6"

6" 8"

6" 8"

3" 1'-8"

[10#]

WALL MOUNTED

TELEPHONE

AC BREAKER

TEST BOX

[200#] [50#]

AC

PANEL

P1

3" 7'

-1 1"

HVAC

UNIT#2

10-TON

HIGH VOLTAGE

[5,000#]

150KVA

AUXILIARY

TRANSFORMER

WITH FUSE

MAIN

AC BREAKER

[3,400#]

[12,000#]

1,087KVA

RECTIFIER

TRANSFORMER

RT01

LV

H

V

EMERGENCY

PUSH BUTTOMS

(TYP 4)

[960#]

2-30" DOORS

2'-7 11/16"

6"7"

1'-6"

2-3070

DOORS

2" 9'-8"

18'-1"

3' -4

12.5KV DELTA

208Y/120V

LOW VOLTAGE

BREAKER

REMOVAL

AREA

2'-4"

4' -0

BREAKER

REMOVAL

AREA (TYP.)

1'-11 5/8"7"

4' -1

0"

5' -0

6' -4

2'-0"

DOOR

PANIC BUTTON

(TYP 4)

9"

3'-0" 4'-6" 9"

2'-6" 2'-5" 2'-5" 2'-6" 3'-0" 2'-4" 2'-4" 8"

DEVICE

1' -2

1'

-7

1/

2'-0"

TEMPERATURE

CONTROL (TYP 2)

REPLACE EXISTING PLC &

SCADA INTERFACE CABINET

WITH NEW STATION

CONTROL CABINET (SCC)

NEW NEGATIVE

GROUNDING

DEVICE (NGD)

NEW BATTERY

CHARGER

NEW TEMP.

MONITOR

NEW TEMP.

MONITOR

NEW DC BREAKER

TEST BOX

EPOXY

17'-11"

36'-0"

FIRE

EXTINGUISHER

(TYP 2)

'-3

6"3" 1'-8"

6" 2'-0"

2'-6"

[25#] EACH

DC

PANEL P2DOCUMENT

CABINET

[200#]

[100#]

SPARE PARTS

CABINET

(FLOOR MOUNTED)

[200#]

3'-7"

6" 1'-5"

6" 1'-9"

BATTERY RACK

WITH COMPOSITION

BOARD FOLD DOWN

TABLE

1' -8

BATTERY

DISC

[47#]

BATTERY

CHARGER

[460#]

1' -9

[1,000#]

3' -0

2"

3' -0

7"

1'-11 5/8" 1'-11 5/8"

[500#]

1'-11 5/8"

FDR #2

DC

BREAKER

15'-5 7/16"

OCS DISCONNECT SWITCHES

(TYP 2)

HVAC

UNIT#1

10-TON

[960#]

[500#]

FDR #3

DC

BREAKER

[500#]

FDR #4

DC

BREAKER

INSULATED

BARRIER

2'-11 7/16"

[500#]

FDR #1

DC

BREAKER

[500#]

MAIN

DC

BREAKER

1'-11 5/8"

[1,500#]

RECTIFIER

NEGATIVE

RETURN

SECTION

[1,000#]

1'-10 9/16"

NO EPOXY

3"

6"

2'-6"

6" 8"

6" 8"

3" 1'-8"

[10#]

WALL MOUNTED

TELEPHONE

AC BREAKER

TEST BOX

[200#] [50#]

AC

PANEL

P1

3" 7'

-1 1"

HVAC

UNIT#2

10-TON

HIGH VOLTAGE

[5,000#]

150KVA

AUXILIARY

TRANSFORMER

WITH FUSE

MAIN

AC BREAKER

[3,400#]

EMERGENCY

PUSH BUTTOMS

(TYP 4)

[960#]

2'-7 11/16"

6"7"

1'-6"

2-3070

DOORS

2" 9'-8"

18'-1"

3' -4

12.5KV DELTA

208Y/120V

LOW VOLTAGE

2'-4"

4' -0

BREAKER

REMOVAL

AREA (TYP.)

1'-11 5/8"7"

4' -1

0"

6' -4

2'-0"

DOOR

PANIC BUTTON

(TYP 4)

9"

3'-0" 4'-6" 9"

3'-0" 2'-4" 2'-4" 8"

NEW BATTERY

CHARGER

NEW TEMP.

MONITOR

EXISTING CABLES IN

CONDUITS FROM

OUTDOOR RECTIFIER

TRANSFORMER

BREAKER

REMOVAL

AREA

TEMPERATURE

CONTROL (TYP 2)

REPLACE EXISTING PLC &

SCADA INTERFACE CABINET

WITH NEW STATION

CONTROL CABINET (SCC)

55'-4"

2'-8"

18'-0"

14'-8"

55'-4"

2'-0"

'-0

'-8

8"

2"

M.

O.

3'- 4"

3'- 4" 2'-

8" 4'-

0" M.

O.

25'-2"

4'- 0"

M.

O.

2'- 8"

5'-8"

22'-0"

5'- 4"

7'-8"

M.O.

18'-8"

7'-4"10'-8"1'-4"8'-0" M.O.

6'-10"

8"

6'-10"

9'-4" 1'-4" 4'-4"8" 1'-4" M.O. M.O.

3'-2" 1'-4"

3'-2" M.O.

3'-2"

M.O. M.O.

1'-4"

'-8

BATTERY

CHARGER

DC

PANEL P2

BATTERY

DISCONNECT

AC

PANEL

P1

MAIN

DC

BREAKER

RECTIFIER

NEG.RET.

SECTION

LO

W

V O

LT

AG

E

RECTIFIER

TRANSFORMER

RT01

[14,500#]H

IG

H

V O

LT

AG

E

[5 ,0

LO

W

V O

LT

AG

E

8Y /1

V

AU

XI

LI

AR

Y

PO

W

ER

TR

AN

SF

O

R M

ER

H

IG

H V

O

LT

AG

E

.5

KV

D

EL

TA

RECTIFIER

AC BREAKER

12.5KV

INCOMING 12.5 KV

AUXILIARY

TRANSFORMER FUSES

EPB

BATTERY RACK

EPB

GB

GB

SURGE

ARRESTOR

NEG.

RETURN

NEW BATTERY CHARGER

NEW NEGATIVE

GROUNDING

DEVICE (NGD)

NEW TEMP.

MONITOR

NEW TEMP.

MONITOR

2'-2"

5'- 8" H

VA

C

NEW DC

BREAKER

TEST BOX

REPLACE EXISTING PLC & SCADA

INTERFACE CABINET WITH NEW

STATION CONTROL CABINET (SCC)

EXISTING

PANEL AND

TELEPHONE

SYSTEM

NEW EPOXY FLOORING

LOW VOLTAGE

2'-9"

(NO EPOXY)

43'-11"

10'-8"

5' -0

'-6

FIRE

EXTINGUISHER

(TYP 2)

'-6

PANIC BUTTON

(TYP 4)

H

VA

C U

N

IT

BATTERY RACK

WITH COMPOSITION

BOARD FOLD DOWN

TABLE

3'-11"

WALL MOUNTED

TELEPHONE

3"

1'-1 1/2"

4"

1'-4 1/2"

3"1'-0"

[2,90#]

BATTERY

CHARGER

BATTERY

DISCONNECT

DC

PANEL P2

1'-8" 3"

[100#] [25# EACH][50#]

[460#]

6" 6"

7"

3"

2'-6"

[10#]

AC

PANEL

P1

1'-8"

[200#]

3' -0

3'

-0

2"

[1,800#]

HVAC

UNIT#1

15-TON

TYP.(2)

2'-7 11/16"

[500#]

15'-5 7/16"

FDR #1

DC

BREAKER

OCS DISCONNECT SWITCHES

(TYP 2)

[500#]

FDR #4

DC

BREAKER

[500#]

FDR #2

DC

BREAKER

[500#]

FDR #3

DC

BREAKER

LO

W

V O

LT

AG

E

(EPOXY)

[1000#] [500#]

MAIN

DC

BREAKER [1,500#]

RECTIFIER

1'-11 5/8"1'-11 5/8"

1'-11 5/8"

2'-11 7/16"

1'-11 5/8"

INCOMING 34.5 KV

AUXILIARY

TRANSFORMER FUSES

AUXILIARY POWER

TRANSFORMER

208Y/120V

[5,000#]

34.5KV

HIGH VOLTAGE

[12,080#]

3"

H

IG

H V

O

LT

AG

E

6' -0

RECTIFIER

TRANSFORMER

RT01

[14,500#]

RECTIFIER

AC BREAKER

34.5KV

[1,200#]

DOCUMENT

CABINETSPARE PARTS

CABINET

AC BREAKER

TEST BOX

[50#]

2'-8"2'-8" 2'-9"

3"

2'-0"

1"

2'-0"

11"

1'-8"

4'-0" 4'-0"

3' -4

AREA

REMOVAL

BREAKER

6' -0

2'-6"

1'-3"

BREAKER

REMOVAL

AREA (TYP.)

1'-11 5/8"

1'-5 9/16"

NEGATIVE

RETURN

SECTION

4"

INSULATED

BARRIER

DOOR

1'-1" 4'-6"

'-1

0"

2-3070

DOORS

5' -0

2'-6"

[1,800#]

HVAC

UNIT#1

15-TON

TYP.(2)

7' -1

0"

1'-5"4'-0" 4'-0"

15'-9"

1' -2

1' -7

1/

1'-11 5/8"

DEVICE

NEW TEMP.

MONITOR

NEW BATTERY

CHARGER

NEW NEGATIVE

GROUNDING

DEVICE (NGD)

NEW TEMP.

MONITOR

REPLACE EXISTING PLC

& SCADA INTERFACE

CABINET WITH NEW

STATION CONTROL

CABINET (SCC)

1'-115 8" 1'-115

8" 1'-115 8" 1'-115

8"

15'-513 16"

15'-5 7 16"

2'-71 2"2'-11 7

16"1'-115 8"

SIEMENSFEEDER BREAKER #4 SIEMENS SIEMENS SIEMENS SIEMENS SIEMENS

MFPR

AV

G R

N11

N2N1

B

N6 N7

MFPRMFPR MFPR MFPR

Y W

RECTIFIERFEEDER 4 FEEDER 3 FEEDER F2 FEEDER F1 MAIN BREAKER NEGATIVE RETURN

SECTION

(WITH SIDE PANELS)

(FRAMES)

N1 G

N2 R

31'-615 32"

BY W

N1 G

N2

RBY W

N1 G

N2

RBY W

N1 G

N2

RBY W

N1 G

N2 R

64G

N3 N4 N5 N3 N4 N5 N3 N4 N5 N3 N4 N5 N3 N4 N5

N10

186H LOCKOUT

REMOTE

LOCAL

ENGRAVING

GROUP ALARM

OPEN / CLOSE

LOCAL / REMOTE

64G/64L - FRAME FAULT

CLOSED

OPEN

N11

N10

N9

N8

N5

N4

N3

N2

N1

ITEM

FRONT VIEW

N6

N7

VOLTMETER

AMMETER

N9N8 N9N8 N9N8 N9N8N9N8

FEEDER BREAKER #3 FEEDER BREAKER #2 FEEDER BREAKER #1 MAIN BREAKER RECTIFIER NEGATIVE SWITCH

HMI SCREEN

FURNISH AND INSTALL ADDITIONAL HMI

SCREEN ON NEGATIVE RETURN CUBICLE

AT TEXAS MEDICAL CENTER

SUBSTATION ONLY