Toronto Transit Commission - Yonge
Subway Extension (YSE)
Conceptual Design
Traction Power Configuration Plan
August 26, 2011
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
Toronto Transit Commission
5160 Yonge Street
Toronto, ON M2N 6L9
Toronto Transit Commission Yonge Subway Extension (YSE)
Conceptual Design
Traction Power
Configuration Plan
August 26, 2011
Hatch Mott MacDonald
2800 Speakman Drive
Mississauga, Ontario L5K 2R7
Canada
Tel: 905 855 2010
Fax: 905 855 2607
john.mcdonald@hatchmott.com
John McDonald
Contract #Y85-9/001/B
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
Toronto Transit Commission Yonge Subway Extension (YSE)
Conceptual Design
Traction Power
Configuration Plan
Issue and Revision Record
Rev
A
B
Date
Apr 12, 2011
Aug 31, 2011
Originator
I. Karam
I. Karam
Checker
Approver
J. McDonald
Description
Draft for Comments
For Conceptual Design
This document has been prepared for the titled project or named part thereof and should not be relied upon or used for any other
project without an independent check being carried out as to its suitability and prior written authorization of Hatch Mott
MacDonald being obtained. Hatch Mott MacDonald accepts no responsibility or liability for the consequence of this document
being used for a purpose other than the purposes for which it was commissioned. Any person using or relying on the document
for such other purpose agrees, and will by such use or reliance be taken to confirm their agreement to indemnify Hatch Mott
MacDonald for all loss or damage resulting therefrom. Hatch Mott MacDonald accepts no responsibility or liability for this
document to any party other than the person by whom it was commissioned.
To the extent that this report is based on information supplied by other parties, Hatch Mott MacDonald accepts no liability for
any loss or damage suffered by the client, whether through contract or tort, stemming from any conclusions based on data
supplied by parties other than Hatch Mott MacDonald and used by Hatch Mott MacDonald in preparing this report.
Contract #Y85-9/001
Rev. B, Page i
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
List of Contents and Appendices
1 2 3 4 Page
Introduction ................................................................................................................................. 1 1.1 Purpose ........................................................................................................................... 1 1.2 Scope .............................................................................................................................. 1 1.3 Document Organization ................................................................................................. 1 1.4 Background Information and References ....................................................................... 1 1.5 Glossary.......................................................................................................................... 1 TRACTION POWER OVERVIEW ........................................................................................... 2 2.1 Traction Power Configuration ........................................................................................ 2 2.2 General Information ....................................................................................................... 2 2.3 Existing Finch Facility Traction Power Substation ........................................................ 3 2.4 Traction Power Substations ............................................................................................ 3 TRACTION POWER CONFIGURATION ................................................................................ 3 3.1 Design Manual ............................................................................................................... 3 3.1.1 Service selection: ............................................................................................... 3 3.1.2 Substation Capacity: .......................................................................................... 3 3.1.3 Voltage Configuration: ...................................................................................... 3 3.2 Traction Power Substation Service Size (Appendix E3) ................................................ 3 3.3 Traction Power Substation Concept ............................................................................... 3 3.4 Functional Description ................................................................................................... 4 3.5 DC Ductbank .................................................................................................................. 4 3.6 Tie Breaker Room .......................................................................................................... 5 3.7 AC Ductbank .................................................................................................................. 5 3.8 Train Storage Facility Service Building ......................................................................... 5 APPENDIXES ............................................................................................................................ 6 4.1 Appendix E1: Allocation of Substations/Satellite locations .......................................... 7 4.2 Appendix E2: Electrical service proposed Single Line Diagram ................................... 8 4.3 Appendix E3: Electrical Load per Service ..................................................................... 9 4.4 Appendix E4: 27.6 kV Feeders within tunnel .............................................................. 10 4.5 Appendix E5: PowerStream Service Budget................................................................ 11 4.6 Appendix E6: Toronto Hydro Service Budget ............................................................. 12 Contract #Y85-9/001
Rev. B, Page ii
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.7 Appendix E7: Traction Power Substation-Above Grade Generic LAYOUT-Option A13 4.8 Appendix E8: Traction Power Substation-Above Grade Generic LAYOUT-Option B14 4.9 Appendix E9: Traction Power Substation-Above Grade Generic LAYOUT-Option C15 Contract #Y85-9/001
Rev. B, Page iii
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
1 Introduction
1.1 Purpose
The purpose of this Traction Power Configuration Report is to document the requirements of the: traction
power, passenger station power and related coordination with electrical utilities for the Yonge Subway
Extension (YSE). This document is a requirement of the Conceptual Design Phase of the project and will
form a basis for a more detailed electrical traction power summary report that would be prepared during
the next phase of the YSE project.
1.2 Scope
This document presents requirements of traction power substations, utility electrical services and
passenger station power supply from traction power substations
1.3 Document Organization
Section 1.0 provides an introduction to Traction Power Configuration Report.
Section 2.0 provides an overview description of the proposed traction power and subway station service
requirements.
Section 3.0 describes the key components of the traction power and passenger station power systems.
Section 4.0 provides Appendixes.
1.4 Background Information and References
The following are references which provide background on the design criteria used for this report:
1. TTC Design Manual.
2. NFPA 130 Fixed Guideway Transit and Passenger Rail Systems.
3. Ontario Building Code Section 3.13. Rapid Transit Stations.
1.5
Glossary
Passenger Station Substation
The power distribution system, located at the passenger station substation, is where high voltage supply
from the traction power substation is stepped down to 600 Volts and 208/120 Volts AC to supply various
facility electrical requirements including emergency power system.
Satellite Structure
A structure (station, service building…etc.) that is supplied with power from adjacent substations through
the tunnel duct bank utilizing high voltage systems available at remote traction power substations.
Traction Power Substation
Contract #Y85-9/001
Rev. B, Page 1
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
The traction power substation receives the incoming high voltage AC services from the local utility
company. The substation installation including adjacent transformer yard, in general, consists of various
assemblies, e.g. high voltage AC switchgear, rectifiers, transformers, DC switchgear, 600Volt AC
switchboard, auxiliary AC power, emergency power and SCADA equipment. The traction power
substation also supplies AC power to the passenger station substation.
2 TRACTION POWER OVERVIEW
2.1 Traction Power Configuration
This section provides an overview description of the Traction Power Configuration (TPC), from an
operations perspective, based on locations of structures developed per alignment drawings and available
information from the TTC Design Manual and similar, existing TTC projects.
A total of five traction power substations located in the area of Cummer Ave., Steeles Ave., Clark Ave.,
Royal Orchard Blvd. and High Tech Dr. for Richmond Hill Centre Station are required for the Yonge
Subway Extension. With the exception of the substation in the area of Yonge Street and Cummer Avenue,
the substations are all included in the approved Transit Project Assessment Process (TPAP). The rationale
for the change in location from the existing Finch Substation to Cummer Station is explained herein.
2.2
General Information
Traction power substations (refer Appendix E1) are provided to accommodate utility service equipment
of dual feed systems from two separate utility buses per single line diagram shown in Appendix E2, with
a total capacity 4.0/5.332 MVA per service line as mentioned in Appendix E3. See Figure 2.1 below.
Preliminary coordination with PowerStream for substations located North of Steeles Ave. and Toronto
Hydro Utility for substations located South of Steeles Ave. for services cost impact, resulted in rough
estimates as recorded in Appendix E5 and E6 respectively.
FINCH
SUBSTATION- EXISTING
CUMMER
SUBSTATION-TH
STEELES
SUBSTATION-TH
A
TH -TORONTO HYDRO
PS – POWERSTREAM
ROYALCLARK
ORCHARD
SUBSTATION
SUBSTATION-PS
- PS
LANGSTAFF
SATELLITE
RICHMOND HILL
SUBSTATION-PS
TRAIN STORAGE
FACILITY
SERVICE BLDG
SATELLITE
A
Figure 2.1: Substations/Satellite Stations and Service Building
Contract #Y85-9/001
Rev. B, Page 2
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
2.3 Existing Finch Facility Traction Power Substation
The detailed design phase will coordinate with TTC Operations and Engineering Departments to establish
cut-off points and the tie-ins process for the existing electrical and systems work required for the
expansion. Prior review meetings with TTC Operations and Engineering Departments concluded that, in
addition to potential impact and risk to existing TTC operations during any planned construction, there
was simply inadequate space to expand the existing TTC Finch Substation.
2.4 Traction Power Substations
Traction power substations utilize the 27.6 kV or 13.8 kV dual services terminated at high voltage
switching centers operated in a mutual agreement policy between TTC and respective utility agencies
implementing up-to-date standards and safety procedures.
3
TRACTION POWER CONFIGURATION
This section describes the configuration of traction power from an operational perspective.
3.1 Design Manual
The selection of locations for substations and their sizing capacity is determined from the Design Manual
per the following references:
3.1.1 Service selection:
DM-0804-01 Items 1.2.1 and 3.1.4 and 3.2.4: Utilities dual service should be from two separate sources
or bus.
3.1.2 Substation Capacity:
DM-804-01 Item 3.2.4: Traction power supply is sized using combinations of 1500 kW rectifiers.
3.1.3 Voltage Configuration:
DM-0701-02 dated Nov-27-2009: Items 2.1.1 and 2.1.2 referencing TTC Directive Drawings 0701.02-01
and 0701.02-02. Sections define information regarding passenger station substation high voltage feeders.
3.2 Traction Power Substation Service Size (Appendix E3)
The requirement for traction power is two services of 1.5 MVA each for a total of 3.0 MVA per service.
The Passenger Station supply (PSS) will cover for the load per station capacity and the subway ventilation
fans for an estimated load of 1 MVA.
Therefore a total value of 4.0/5.332 MVA (fan operated) continuous service capacity will be the size of
each service line.
3.3 Traction Power Substation Concept
The traction power substations will house required service equipment and traction power distribution
equipment; also, it will provide two high voltage feeders to the passenger station switchgear room.
Contract #Y85-9/001
Rev. B, Page 3
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
Where a traction power substation is provided without an adjacent passenger station, as is the case at
Royal Orchard, separate electrical rooms similar to those available in a passenger station will be provided
adjacent to the traction power substation.
These rooms will serve the traction power substation with facility electrical requirements as well as tunnel
electrical facility requirements if needed.
Appendices’ E7, E8 and E9 provide three options for typical traction power substation layouts. Layout of
the actual substation will be re-configured to suit actual site conditions and constraints.
Traction power substations will provide high voltage distribution through the tunnel (see Appendix E4 for
TTC consent to this application) for satellite stations and for the train storage facility ventilation service
building.
3.4 Functional Description
The traction power substations provide the electrical power for the third rail supply for the subway trains
as well as the necessary primary electrical equipment for the passenger station supply. The availability of
traction power, without interruption, is of prime importance. Installed spare capacity will be provided at
each substation and equipment will be sized and configured to accommodate load sharing with two
adjacent traction power substations in the event of a traction substation failure. The design of the
substation will incorporate service reliability as one of the main criteria. Similar to the Toronto-York
Spadina Subway Extension (TYSSE) Project, redundancy is also provided in order to reduce outage times
for maintenance.
The traction power, 600 volt DC, is supplied from the rectifier units through DC positive switchgear and
cabling to the third rail. The negative return from the vehicles will be through the return running rail and a
parallel negative reinforcing cable, and the negative feeder cables. To minimize stray DC current
problems, the negative return will be floating. To avoid a safety hazard should the negative float above 70
VDC a floating negative automatic ground switch (FNAGS) will be connected between the negative and
the substation AC ground.
The traction power substation will supply high-voltage power to the passenger stations (AC Switchgear
room). A systems equipment design package includes the high-voltage and 600 Volt equipment in the AC
switchgear rooms. To provide service reliability both the high voltage and 600 volt level will have two
independent buses with a tie-breaker available for outage contingencies.
Passenger station electrical equipment will obtain dual feed from the switchgear 600 volts system to the
station switchboard.
Load analysis simulating train operations combined with station loads should be provided during the
detail design phase.
3.5 DC Ductbank
Traction power conductors will be run in a ductbank between the traction power substation and contact
rail (power rail) through a traction power cable pulling room provided at platform/track level.
Contract #Y85-9/001
Rev. B, Page 4
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
3.6 Tie Breaker Room
Tie Breaker rooms are provided at satellite stations and along the tunnel locations as identified during
traction power detail design phase.
3.7 AC Ductbank
Traction power substation provides high voltage dual feed system to passenger station switchgear room.
600/208 Volts and systems ductbank will be provided from passenger station electrical rooms to the
traction power substation for traction power substation facility/systems requirements.
3.8 Train Storage Facility Service Building
Dual high voltage service through the tunnels will provide power to the service building. The service
building will have electrical rooms in a similar manner to a station with room sizes adjusted to the
required application.
A ductbank between the service building and the tunnel ventilation room provides power/control
requirements.
Contract #Y85-9/001
Rev. B, Page 5
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4 APPENDIXES
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.1 Appendix E1: Allocation of Substations/Satellite locations
Item
Location
Along Yonge St.
Substation
Cummer Ave.
Provided
North/East corner
Steeles Ave.
Provided
South/East corner
Clark Ave.
Provided
North/East Corner
Royal Orchard Blvd.
Provided
North/East corner @ Bay Thorn
Dr.
Langstaff Rd.
High Tech Dr.
Tail Track
Satellite*
Re-Marks
Provided
Provided
Provided
North/East corner @ Hightech
Dr.
End of tail track @ EEB # 8
1. Satellite, HV Power is fed through tunnels from adjacent substations located at adjacent stations.
2. Allocation of structures is based on alignment dated 2011-03-23
Contract #Y85-9/001
Rev. B, Page 7
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.2 Appendix E2: Electrical service proposed Single Line Diagram
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.3 Appendix E3: Electrical Load per Service
Proposed conceptual design, electrical load per each service (two per station) consists of the following:
Train power supply-Traction Power
3.0 MVA
Passenger Station including subway ventilation
1.0 MVA
Total Continuous Connected Electrical load:
4.0 / 5.332 MVA (Fan operated)
Each service of the double ended service substation to be sized to accommodate 1.33% (fan operated) of
the total connected electrical load.
Contract #Y85-9/001
Rev. B, Page 9
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.4 Appendix E4: 27.6 kV Feeders within tunnel
Email regarding TTC acceptance of installing 27.6 KV feeders within the tunnels:
From: McDonald, John
Sent: Friday, February 18, 2011 9:24 AM
To: Karam, Ibrahim
Subject: FW: Substation Requirements
Ibby:
Please assess significance of the statement by TTC that 27.6kV can be run through the tunnels (asap).
We have a meeting with our political leaders on Tuesday and our indication that we would need
substations at every station is and would be a major concern. If that is not the driver for the decision to
consider a substation at every station, then we need to know what is driving the decision. If it is related to
“do not allow for degradation of supply” during a substation outage, then that should be highlighted so
that Paul Millett can go back to Murali Menon for justification.
John
From: Paul.Millett@ttc.ca [mailto:Paul.Millett@ttc.ca]
Sent: Friday, February 18, 2011 9:09 AM
To: McDonald, John
Cc: SBowers@mrc.ca; Brian.Titherington@york.ca
Subject: Substation Requirements
John
I have spoken to our people (TTC Electrical Power and Design) and they advise that in fact the 27.6kv
can be run through the tunnels which should eliminate the need for additional substations. Please give me
a call so we can discuss.
Paul Millett
Chief Project Manager
Yonge Subway Extension
T 416-397-8738
F 416-338-0271
Contract #Y85-9/001
Rev. B, Page 10
Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.5 Appendix E5: PowerStream Service Budget
From: Paul Yuen [mailto:PYuen@powerstream.ca]
Sent: Wednesday, March 02, 2011 3:14 PM
To: Karam, Ibrahim
Cc: McDonald, John; Gandolfi, Eddie; Lawson, David; Gandolfi, Eddie; Paul.Millett@ttc.ca; Barry
Stephens; Richard Wang; Patrick Leung
Subject: RE: TTC- Yonge Subway Extension Coordination - meeting with PowerStream
Importance: High
Hi Ibby,
Sorry for the delay, our planning dept. had to evaluated the supply requirements for your proposed
loadings of this project.
In order to supply the requirements on Yonge Street from Steeles Ave. to Hwy. #7 we need to upgrade
our pole line on the West side and install another circuit to support your proposed loadings, the cost
estimate approximately $5 million to upgrade our pole line only.
The cost for each Station locations from Steeles Station, Clark Station, Royal Orchard Station and
Langstaff/Longbridge Station please estimate approximately $255K for each stations and for the
Richmond Hill Centre Station (this area is all underground) please estimate approximately $428k.
Note, if this project is to proceed today TTC is looking approximately $6.5 million for hydro supplies. This
cost includes materials, Labour and misc. in the boulevard only, TTC will be responsible for the interstructures on their Right of Ways. Transformers will be supplied, installed and owned by TTC.
If you have any questions, please do not hesitate to call me or e-mail me.
Thank you,
P. Yuen
Paul Yuen, C.E.T.
Industrial/Commercial Design Technician
(905) 532-4414
(905) 532-4401 fax
For new Three Phase Services & Upgrades
call our New Connections Dept. at
(905) 417-6900 ext. 26572
to acquire a Service Application form
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.6 Appendix E6: Toronto Hydro Service Budget
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.7 Appendix E7: Traction Power Substation-Above Grade Generic LAYOUTOption A
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.8 Appendix E8: Traction Power Substation-Above Grade Generic LAYOUT-
Option B
Contract #Y85-9/001
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Toronto Transit Commission - Yonge Subway Extension (YSE)
Conceptual Design – Traction Power Configuration Plan
4.9 Appendix E9: Traction Power Substation-Above Grade Generic LAYOUTOption C
Contract #Y85-9/001
Rev. B, Page 15