underground distribution construction manual version 23 · 2019-04-04 · 1. cable fault indicators...

© Energex Limited 2014

ABN 40 078 849 055

MANUAL 00305

Underground Distribution Construction

Manual

Section E2 – Padmount Transformers

Approved by: A Smith - de Perez

Uncontrolled Document When Printed

This drawing must not be

C COPYRIGHT 2019 ENERGEX

whole without writtenpermission from ENERGEX

reproduced in part or

UNDERGROUND DISTRIBUTION CONSTRUCTION MANUAL

ORIGIN

AL ISS

UE

DATE

APP’D

SECTION SUB-SECT.

CAD

RECD

CKD

DWN

SHT OF

FILE

ELECTRICAL

PADMOUNT TRANSFORMERS

SECTION INDEX

6229-A4 E

E2 01 1

UDC-E2-0-1E.DWG

R. ENGLISH

10/10/08

P.BARNEY

F.AMANPOORA

SECTION E2 - PADMOUNT TRANSFORMERS

ELECTRICAL

DA

TE

APP

D

CK

D

DR

NE03.0

4.19

A. BLET

CHL

Y

B. B

RU

NS

MA

NN

T. B

OR

G

2.13 & 4.6 A

DDE

D

SUB-SECT DESCRIPTION SHEETS

TECHNICAL DATA

1.1 Padmount, ground & dry type - stock code information 3

1.2 3Line diagram - rectangle & square

1.3 6

1.4 1

1.5 1

1.6 Old contract - repairs components 1

Old contract transformer stock code & line diagrams

Old contract rectangular - ancillary materials

Rectangular - build-up requirements - C & I

1.7 1

1.8 1

1.9 1

Rectangular - HV phase connections

Old contract - 11kV & LV separate earthing & GPO

Old contract - RMU & switchgear outlines - ABB / Andelect

1.10 1

1.11 1

RMU switchgear - ABB Safelink & Areva FBX

Square - fuse selection

SUB-SECT DESCRIPTION SHEETS

2.1 3

2.2 3

2.3 1

2.4 1

2.5 1

2.6 1

2.7 1

2.8 1

2.9 1

2.10 1

2.11 1

LV SWITCHBOARDS

2.12 1

2.13 1

Wilson PMT’s - contract C08008

Old contract 100kVA - ABB PMT

Old contract 200kVA - ABB PMT (C1/94)



Old contract 200kVA - ABB PMT (QESI 30/98)





Paralleling cable up to 240mm† - ABB

Summary of switch sizes for loads

Miscellaneous items - LV monitoring & CFI

EARTHING

4.1 1

4.2 1

4.3 1

4.4 1

4.5 1

4.6 1

Square type - common earth arrangement

Square type - separate earth arrangement

Rectangular type - common earth arrangement

Rectangular type - separate earth arrangement

Dual square type - common earthing arrangement

Dual square type - separate earth arrangement






ORIGIN

AL ISS

UE

DATE

APP’D

SECTION SUB-SECT.

CAD

RECD

CKD

DWN

SHT OF

FILE

ELECTRICAL


MISCELLANEOUS ITEMSLV MONITORING & CABLE FAULT INDICATORS

6229-A4 B

E2 2.131 1

UDC-E2-2.13-1B.DWG

J.LANSLEY

20/8/15

-

-

P.RELFA

SC223644G Antenna -

SC24901EDMI meter panel -

SC24888Current sensor panel - 5.

detailed in Technical Instruction TSD0181.

Mounting locations for meter, transducer box and current sensors are 4.

auxiliary board (If auxiliary board not fitted - install new board).

On a rectangular padmount, voltage supply to come from 100A fuses off 3.

spare circuit or piggy backed off existing circuit.

On square padmounts, voltage supply to meter to come from either a 2.

Instruction TSD0181.

padmount transformers. Refer to Engineering Standards Technical

monitoring can be retrofitted to both rectangular and square LV1.

LV MONITORING

SC22614Leelen DJ-3100

UGMAT42SC20109Horstmann OPTO-E 3.04.

cancel the effects of induced current in screen wires.

For the earth fault CT the screen wires shall be fed back through the CT to 3.

NoAuto-reset

4 hrsReset time

200msTime delay

40AEarth fault current rating:

800APhase fault current rating:

Unless otherwise advised, the following settings shall be applied to all CFIs:

TSD0140.

Standards Technical Instruction Triplex cable - refer to Engineering

2. For further information on cable fault indicators including installation to

padmount transformers.

Cable fault indicators to be fitted to RHS isolator on each RMU in new 1.

CABLE FAULT INDICATORS

PHASE & EARTH FAULT CT POSITION EARTH FAULT CT POSITION

sensorPhase fault CT

sensorEarth fault CT

B

indicator notes

to cable fault

Triple

x cable added

A.

BLET

CHL

Y

B.

BR

UNS

MA

NN

T.

BO

RG

APP’D

CK

D

AT

HR

DA

TE

23.01.19


ORIGIN

AL ISS

UE

DATE

APP’D

SECTION SUB-SECT.

CAD

RECD

CKD

DWN

SHT OF

FILE

ELECTRICAL


EARTHINGDUAL SQUARE TYPE - SEPARATE EARTH ARRANGEMENT

6229-A4 B

E2 4.61 1

UDC-E2-4.6-1B.DWG

J.LANSLEY

10/5/17

L.LIM

P.RELFA

6

"C" CLAMP CONNECTION

rod

Bend cable tosuit the earth





rods if required

Additional earth

1

Clearance Zone

to be connected to

HV earth grid

5m

Min

Min

5mFootpath

HV

LV Earth Bar

Neutral BarLV

8

5

16600

7

Alignment

R.P. Street

130020001300

8900

300

HV

Earth Grid

Earth Bar

Transformer

PLAN

HV

LV Earth Bar

Neutral BarLV

8

3 64

1

4300

4300

962

2076

962

962

2076

962

4300

NOTES:

11

1

2

Detail

1

Earth Rod

1

2

10 ohm

DISCONNECTED

MAX.

LV EARTH

LV NEUTRAL

LV Earth

N

Grid

Earth

10 ohmMAX.

DISCONNECTED

EARTH GRID

Neutral Bar

LV Earth

Earth Bar

Transformer

Bar

11. Modify LV EARTH BAR, Remove GPO & attach

5. Fence as required for residential areas and sloping

footprint.

1. Attempt to locate separately earthed padmounts in

3. The clearance zone shall be road reserve or an

6. HV earth electrodes are to be contained within the

4. The clearance zone shall be turfed or landscaped with

clearance zone from the edge of the plinth. Clearance

2. For SEPARATE LV & HV earthing provide a five metre

ARBentonite/Gypsum (20kg)11

QTY

16

12

1

2

Cu Clad Earth Rod1440 x 13mm

Earth Rod Coupling Pin

DESCRIPTIONITEM

40m

4

32m

8

4

20m

1

1

DSPMSEGS2

3

5

4

6

7

Cable to Rod

Cable to Cable

cover strip

Cu Crimp "C" Connector

Cu Crimp "C" Connector

Crimp Lug 70mm M12 Hole

19/2.14mm Bare Cu Cable

8

9

10

Installations

Separate LV Earth Bar

19/2.14mm PVC Cu Cable

Modification Kit (DSTFRSEN)

COMPATIBLE UNIT:-

Signs for Separate Earth

Polymeric cable protection

zone to be maintained free from metallic objects,

buildings and structures - including foundations.

mulched beds and shrubs.

areas remote from residential dwellings.

easement to prevent encroachment.

sites.

"CAUTION LABEL"

100mm above all earthing not beneath the padmount

9. Polymeric cover strip shall be installed a minimum of

8. Earth grid to be 500mm below ground level.

ELEVATION

HV(MEN)

- Earth ConnectionELEVATION

minimum of 200mm clear separation.

10. When LV and HV earth systems cross maintain a

STOCK CODE

-

15983

08351

12953

12952

15345

06260

07053

06144

22946

17322

17954

12 "STATION EARTH" TAG 2 06425

7. Two earthwires from the earth grid to be connected to

the transformer earth bar.

of clearance zone, are to be insulated.

12. Both HV and LV Earth cables, running to and outside

site.

2

1

B

& Earth grid added

RP Street

Align

ment

A.

BLET

CHL

Y

B.

BR

UNS

MA

NN

T.

BO

RG

APP’D

CK

D

AT

HR

DA

TE

23.01.19

8

LV

Earth Grid

Min

5m

Min

5m

Alignment

R.P. Street

8

underground distribution construction manual version 23 · 2019-04-04 · 1. cable fault indicators...

Documents