COMPATIBILITY BETWEEN

RAILWAY ELECTRICAL SYSTEMS

B

B

132 to 25kV OLE transformer

B

B

MPC

MPC

MPC

MPC

B

B

B

B

25 kV switchgear & OLE dampers located in TSC Compound

XB XB XB XB XB

Spider plate

MobileGenerator

TelecomsEquipment

PL Services

Train 2

Spider plate

XB

L

DPLServices

DPLServices DB02DB01 DB02

ACC Equipment

48V PS 48V PS

ACC Equipment

48V PS 48V PS

L

ACC Equipment

48V PS 48V PS

DB01 DB02

PH

GSMR

RECTransformer

GSMR

RECTransformer

400 VREC

Switchgear

RECTransformer

Mains & Traction

Supply DB

Changeover switch

415 V to 650 V transformer

650 V regulator

25 kV to 800 V transformer 650 V earth

free supply to existing location cases

Old type Signalling Equipment

110V BatteryCharger

SCADA110V

Batteries

50VBatteries

400 VREC

Switchgear

RECTransformer

TSC400 V

Switchgear

Cable armouring may or may not be

gapped

Dedicated British Telecom lines to Crewe Control Centre

GSMRL

Train 1

B

B

DPL DPL

PSP Compound

25 O 25 O 25 O 25 O 25 O

25 O 25 O 25 O 25 O 25 O 25 O

4 O4 O4 O4 O4 O

4 O4 O4 O4 O4 O

TSC 25 kV switchgear

Control & supervision equipment

TSC

N

eutra

l Bu

sbar

EarthBusbar

Independent Earth

PointHeating

RECTransformer

TSC Compound

LL L L

DPL

Ear

th B

usba

r

DPL

Ear

th B

usba

r

DB01

20 O20 O

20 O

L

L L

LL

PSP Services

Telecom DB

4 O

DB03

230/230 V PSVTVL

Telc

oms

Earth

Bar

Link

Label Description of Equipment DB01 Signalling Type N Supplies DB02 Signalling Type R Supplies DB03 Signalling 230 V Location Case Supplies

L Location Case GSMR Global System for Mobile Communications

PS Power Supply

Line/EquipmentColour

25 kV OLE conductor 25 kV OLE return conductor Earth or connection to traction return rail Traction return rails, 25 kV OLE Damper or REC Neutral 800 to 650 V, transformer to 650 V regulator 650 V cables REC 400 V phase conductor REC 400 V phase conductor REC 400 V phase conductor 400 V three phase and neutral supply Three phase (earth free) supply 230 V single phase and neutral supply 230 V single phase (earth free) supply to location cases 110 V points heating cable 110 Vd.c. supply 50 Vd.c. supply Signalling feeds from ACC Equipment to location cases Telecoms Copper Cables Telecoms Screening conductor or its earth BT Lines Local earth electrode

Equipment locally earthed Equipment earthed to REC TSC Equipment earthed to traction return rail Points Heating

RECTransformer

Station & Platform Supplies

Platform Furniture

25 O

50V BatteryCharger

230 V domestic supplies

Electrical Systems Interactions Diagram

SIZE FSCM NO DWG NO REV

406002-L-TN-031SCALE 1:10000 SHEET 1 OF 1

UPSBypassPanel

Edinburgh Tramway – D.C. Supply

I.C.M.U. INTERFERENCE:

Overground Problems

UNDERNEATH THE ARCHES:

REMOTE COUPLING:

TUNED ZONE

T.I.21

Tx

AMP

R.E.C. MAINSCABLE

TRAINLEAVESSECTION

TRAINENTERSSECTION

FAULT25kVLINE

VOLTAGE

SIGNALLINGSUPPLY

VOLTAGE(STANDBY)

SIGNALLING SUPPLY FROM O.L.E.:

COMPATIBILITY BETWEENRAILWAY ELECTRICAL SYSTEMS

QUESTIONS AND ANSWERS