Siemens 8DJ20 User Manual

Switchgear Type 8DJ20
up to 24 kV, Gas-Insulated

Medium-Voltage Switchgear

Catalog HA 45.31 · 2008

www.siemens.com/energy

Contents

Application, Requirements

Features

Application, Requirements

Page

Features, typical use 2 and 3

Technical Data

Electrical data, filling pressure, temperature 4

Product Range

Equipment features 4
Product range overview, schemes 5

Design

Panel design 6

Components

Three-position switch-disconnector,
operating mechanisms 7
HV HRC fuse assembly, secondary
equipment, pressure absorber system 8
Cable connection 9

Dimensions

Switchgear 10 to 13
Floor openings, fixing points 14 and 15
Examples for cable connection 16

Shipping

Types of transport, transport data 17

Designs, Special Designs

LV compartment, outdoor enclosures 18 to 20

Standards, Notes

Standards, specifications,
guidelines, classification 21 to 23

For further information, please refer to

•

Catalog HA 40.1:
Switchgear Types 8DJ and 8DH, General Part

•

HA 45.31/41.11:
Supplements to Switchgear Types 8DJ and 8DH

Invalid:

Catalog HA 45.31 · 2006

The products and systems describedin this catalog
are manufactured and sold according to a certified
quality and environmental managementsystem
(acc. to ISO 9001 and ISO 14001).
(DQS Certificate Reg. No. DQS 003473 QM UM).
The certificate is accepted in all IQNet countries.

8DJ20 switchgear is a factory­assembled, type-tested, metal­enclosed switchgear for indoor
installation.

Typ ic al us es

8DJ20 switchgear is used for
power distribution in substations
– even under severe environmen
tal conditions, such as:

Industrial environments

•

Damp, sandy or dusty areas

•

Simple outdoor substations

•

Main uses

Compact substations

•

Compact transformer substations,

•

e. g. for wind power stations
Garage and vault substations

•

Underground and underfloor

•

substations
Sidewalk substations, e.g.

•

containing switchgear with a
very small overall width – in
particular the basic versions
of schemes 10, 32 and 71 –
in conurbations

•

Substations with control aisle

Technology

•

Switchgear design with up to
5 feeders

•

Maintenance-free

•

Climate-independent

•

Partition class: PM
(metallic partition)

•

Three-pole primary enclosure,
metal-enclosed

•

Insulating gas SF

•

Welded switchgear vessel with-

6

out seals, made of stainless
steel, with welded-in bushings
for electrical connections and
mechanical components

•

Three-position switch-discon

­nector with load-break and
make-proof earthing function

•

Cable connection for
bushings with outside cone

•

Connection with cable plugs

– In ring-main feeders with

bolted contact (M16)

– In transformer feeders with

plug-in contact

Option: Connection with

•

conventional sealing ends

– For thermoplastic-insulated

cables via elbow adapter
AKE 20/630 (make Siemens)

– For paper-insulated mass-im-

pregnated cables via commer­cially available adapter systems

Easy installation

•

-

Personal safety

Safe-to-touch and hermetically-

•

sealed primary enclosure
HV HRC fuses and cable sealing

•

ends are only accessible when
outgoing feeders are earthed

Operation only possible when

•

enclosure is closed
Logical mechanical interlocking

•

Capacitive voltage detecting

•

system to verify safe isolation
from supply

Feeder earthing by means of

•

make-proof earthing switches

Security of operation

Hermetically-sealed primary

•

enclosure independent of en­vironmental effects such as
pollution, humidity and small

animals – sealed for life:
– Welded switchgear vessel
– Welded-in bushings and

operating mechanism

•

Operating mechanism parts

maintenance-free

(IEC 62 271-1/VDE 0671-1)

•

Operating mechanisms of

switching devices located out-

side the switchgear vessel

(primary enclosure)

•

Switchgear interlocking system

with logical mechanical inter-

locks

Cost-efficiency

Extremely low “life-cycle costs”
throughout the entire product
service life as a result of:

•

Maintenance-free concept

•

Climatic independence

•

Minimum space requirements

•

Maximum availability

Standards

seepage21

© Siemens AG 2008

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

2

Application

Features

Our product range extends from
switchgear installed in a radial
transformer panel (individual
panel) to switchgear with 5
feeders, consisting of

Ring-main feeders

•

Transformer feeders with

•

HV HRC fuse assemblies
Circuit-breaker feeders (for

•

thecompleteproductrange
see Supplements to Catalogs
HA 45.31/41.11 – 2006)

The switchgear is available in
three overall heights:

1200 mm

•

(with low subframe)
1400 mm and 1760 mm

•

(with high subframe)

These overall heights cover all
areas of application, from com­pact substations to switchgear
rooms with control aisle.

Basic design

Manual operating mechanism

•

Transformer cable connection

•

at the front (standard)

•

With logical mechanical inter­locks

•

With ready-for-service indicator

•

With capacitive voltage de­tecting system at the ring­main feeders

s
p
e
c
9
9
0

­5
4
A
H

­R

Radial transformer
panel

1 transformer feeder
1 radial cable connection

Scheme 01

s
p
e
b
0
0
1

­5
4
A
H

­R

Ring-main/
transformer block

2 ring-main feeders
1 transformer feeder

Scheme 10

s
p
e
c
1
0
1

­5
4
A
H

­R

Ring-main/
transformer block

3 ring-main feeders
2 transformer feeders

Scheme 82

Typical use

Options (others on request)

•

Capacitive voltage detecting
system at the transformer
feeders

•

Motor operating mechanisms
for the three-position switch­disconnectors

•

Auxiliary switch for three-posi­tion switch-disconnector and
make-proof earthing switch

•

Short-circuit indicator with
built-in housing

•

Surge arresters for ring-main
feeders

•

Shunt releases for transformer
feeders

•

Secondary equipment for
remote operation or remote
indication, e.g. with local­remote switch in the case of
motor operating mechanisms
or ”tripped signal” in the case
of transformer feeders

•

Locking devices

•

Closing lock-out

•

De-earthing lock-out

•

Cable clamps

s
p
e
c
6
8
0

­5
4
A
H

­R

8DJ20 switchgear in
a compact substation

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

3

Technical Data, Product Range

Electrical data, temperature, filling pressure Equipment features of panels

Rated voltage U
Rated insulation level

Rated short-duration kV
power-frequency
withstand voltage U

Rated lightning impulse kV
withstand voltage U

Rated frequency f
Rated normal current I

for ring-main feeders 400 or 630 A
for transformer feeders

depending on the
HV HRC fuse link

for schemes 01 and 21
depending on the
HV HRC fuse link

Rated short-time
withstand current I

at 1 s kA

at 3 s (option) kA 20 20 20 20 20

Rated peak kA
withstand current I

Rated short-circuit
making current I

fortransformerfeeders kA2525252525
for ring-main feeders kA

Ambient air temperature T
(operating conditions acc. to
IEC 62 271-200/Clause 2 or
IEC 62 271-1

– Without secondary equipment
– With secondary equipment,

class “Minus 5 indoor”

Pressure values at 20 °C
for the insulation:

Rated filling level p
Minimum functional level p

1) According to some national requirements, higher values of the
rated short-duration power-frequency withstand voltage
available for I
– 42 kV for phase-to-phase, phase-to-earth and opencontact

gap as well as

– 48 kV across the isolating distance
Higher values of the rated lightning impulse withstand voltage:

– 95 kV for phase-to-phase, phase-to-earth and opencontact

gap as well as

– 110 kV across the isolating distance

2) For overall height of switchgear 1200 mm:
Cable bracket below the feeder

3) Cable fixing by customer
(the switchgear is supplied without cable bracket)

4) In case of scheme 01 the cable compartment cover is bolted.
The transformer connection is effected via the bushings
arranged underneath the switchgear vessel. The transformer
feeder is earthed by the three-position switch

5) Temperature range, reduced normal currents at ambientair
temperatures>+40°C

6) SurgearrestertypeRDAwithRICS(TycoElectronics)not
possible for a height of 1200 mm

o. r. = on request

r

r

ma

)

=20kAwith:

k

k

p

re

kV 7.2121517.524

20 281)36 38 50

d

p

r

60 751)95 95 125

50/60 Hz

200 A

200 A

–
kA
kA

kA
kA

kA
kA

me

–

20

20

25

25

–

–

50

50

63

63

–

–

50

50

63

63

-40to+70°C

-5to55°C

1500 hPa (absolute)

1300 hPA (absolute)

–

16
20
25

–
50
63

–
50
63

5)

5)

16

20

20

25

–

40

40

50

50

63

–

40

40

50

50

63

–

Equipment

Manual operating mechanism for
three-position switch-disconnector:

– As spring-operated mechanism
– As spring-operat./stored-energy mech.

Motor operating mechanism for
three-position switch-disconnector

Interlock for cable compartment
cover

Cable compartment cover locked
in place/screwed on

2)

Cable bracket
feeders, cable routing downwards

Cable bracket in transformer feeder:
For cable routing

– Downwards (standard), f. cable elb. plugs

or

– Downwards, for straight cable plugs

or

– To the rear, for cable elbow plugs

Low-voltage terminals in the
operating mechanism
(option for secondary equipment)

Shunt release

Auxiliary switch for
– Switch-disconnector

CLOSED/OPEN:1NO+2NC

–EARTHINGCLOSED/OPEN:

1NO+1NC

Locking device for
three-position switch-disconnector

Short-circuit or earth-fault indicator
– Wiring at the indicator

(standard)

– Wiring to terminal (option)

De-earthing lock-out for
make-proof earthing switch
in transformer feeder

Closing lock-out for
three-position switch-disconnector

Double cable connection for
– Overall height of switchgear 1200 mm

– Overall height of switchgear 1400 mm
– Overall height of switchgear 1760 mm

Surge arrester for
– Overall height of switchgear 1200 mm

– Overall height of switchgear 1400 mm
– Overall height of switchgear 1760 mm

Cable clamps for cable fixing
– Supplied separately

– Preassembled (option)

in ring-main and cable

• Basic equipment

Additional equipment

°

(option), further
additional equipment
on request

xNot

applicable

– Not avail-

able

Radial cable connection, panel K(E) for scheme 21

(with additional earthing switch)

Radial cable connection,panelKforscheme02

Ring-main feeders

panel RK

(without earthing switch)

•

x

–

x

–x

•

–•••

–•–––

••••

x

x

x

x

x

x

•–•••

–––

x

°

x

°

x

°

°

°

°

°

xxx

°

–x

°

°

°

°

°

°

–

–

°

°

°

°

°

°

°

°

Transformer feeder

panel1Tinscheme01

Transformer

•

–

–

•

°°°

x

x

x

•

without

3)

without

3)

x

°°

°

°

°

°

°°°

–

°

–

°

4)

––

°

x

°

x

°

x

°

6)

o. r.

x
x

°

x

°

°

°

–

°

feeders

–

•

x

•

•

°
°

–

–

°

x
x
x

x
x
x

°
°

panel T

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

4

T

HA45-2294d eps

K

HA45-2295c eps

RK K

HA45-2296c eps

RK TRK

HA45-2302c eps

RK TRK RK

HA45-2304c eps

RK TRKT

HA45-2297c eps

RK RK

HA45-2301c eps

RK RKRK RK

RK RKRK RK RK

HA45-2306c eps

HA45-2300c eps

RK RKRK

HA45-2305c eps

RK TRKT RK

HA45-2303c eps

RK TRK RK RK

HA45-2298c eps

TRK

HA45-2299c eps

TK(E)

Product Range

Product range overview, schemes

1)

Scheme
Components shown in dotted

lines can be used optionally.

Overall dimensions Net
WidthmmDepth

2) 3)

mm

Height
mm

weight
approx.

kg

Scheme
Components shown in dotted

lines can be used optionally.

Radial transformer panels

Scheme 01 * 1 transformer feeder,

K Radial cable

connection as
infeed

1 radial cable connection
(Abbreviation 1T)

510 775 1200

1400
1760

140
160
200

Scheme 21 1 radial cable connection,

Radial panel

Scheme 02 1 ring-main feeder with

radial cable connection
(Abbreviation 1RK)

710 775 1200

1400
1760

150
170
210

Block versions, consisting of ring-main andtransformer feeders (with HV HRCfuse assembly)

Scheme 10

* 2 ring-main feeders,

Scheme 20 1 ring-main feeder,

1 transformer feeder
(Abbreviations 2RK+1T)

1060 775 1200

1400
1760

280
300
340

K(E) Radial cable

connection, K as
K(E) with make-proof
earthing switch

Overall dimensions Net
WidthmmDepth

2) 3)

mm

Height
mm

weight
approx.

kg

1 transformer feeder
(Abbreviations 1K(E)+1T)

710 775 1200

1400
1760

200
210
250

1 transformer feeder
(Abbreviations 1RK+1T)

710 775 1200

1400
1760

200
210
250

1)

Scheme 71 * 3 ring-main feeders,

1 transformer feeder
(Abbreviations 3RK+1T)

1410 775 1200

1400
1760

340
360
400

Scheme 81 * 2 ring-main feeders,

2 transformer feeders
(Abbreviations 2RK+2T)

1410 775 1200

1400
1760

400
420
460

Block versions, consisting of ring-main feeders (withoutHV HRC fuse assembly)

Scheme 11 2 ring-main feeders

(Abbreviation 2RK)

710 775 1200

1400
1760

160
170
210

Scheme 70 * 4 ring-main feeders

(Abbreviation 4RK)

1410 775 1200

1400
1760

280
300
340

Scheme 72 4 ring-main feeders,

1 transformer feeder
(Abbreviations 4RK+1T)

1760 775 1200

Scheme 82 3 ring-main feeders,

2 transformer feeders
(Abbreviations 3RK+2T)

1760 775 1200

Scheme 32

* 3 ring-main feeders

(Abbreviation 3RK)

1060 775 1200

Scheme 84 5 ring-main feeders

(Abbreviation 5RK)

1760 775 1200

1400
1760

1400
1760

1400
1760

1400
1760

420
440
480

470
500
540

210
230
270

350
380
420

1) Depending on the relevant equipment, e.g. motor operating mechanism

2) Additional wall distance required: W 15 mm

3) For cable routing of transformer cables downwards

* Scheme is also suitable for outdoor enclosure (see pages 18 and 19)

Abbreviations:
RK = Ring-main feeder K = Cable feeder T = Transformer feeder
K(E) = Cable feeder forradial cable connection with make-proofearthing switch

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

5

HA45-2337d eps

L1 L2 L3

5

3

2

1

4

B

A

B

A

6

7

8

9

10

11

12

13

14

15

17
18

19

20

21

22

23

24

25

26

27

28
10
19
20

31

22

23

32

24

27

33

31

36

10

16

30

29

34

35

38

38

HA45-2308e eps

31

32

29

24

30

22

HA45-2309e eps

31

32

29

22

23

24

37

Design

Panel design (example)

Ring-main/transformer block

Scheme 10

Transformer feeder

Section A-A

Standard

Cable connection for cable elbowplugs
(option: for cable T-plugs),
cable routing downwards

Ring-main feeder

Section B-B

Cable connection with bolted contact (M16):
– For cable T-plug or cable elbow plug
– For conventional cable sealing ends via

elbow adapter AKE 20/630

1 Niche for customer-side low-voltage equipment
2 Feeder designation label

Position indicators
in the ring-main feeder:

3 Load-break function ”CLOSED – OPEN”
4 Earthing function ”OPEN – EARTHED”

5 Rating and type plate
6 Ready-for-service indicator
7 Mimic diagram
8 Short-circuit/earth-fault indicator (option)

9 Sockets for voltage detecting system
10 Interlock of the cable compartment cover
11 HV HRC fuse assembly, cover removed
12 Handle for replacing the HV HRC fuse link
13 Interlock for HV HRC fuse assembly

Position indicators
in the transformer feeder:

14 Earthing function ”OPEN – EARTHED”
15 Load-break function ”CLOSED – OPEN”

with ”HV HRC fuse tripped” or”shunt release
tripped”, where applicable

16 Locking device

(option for three-position switch-disconnector)

17 Manual operation for the mechanism of

the earthing function

Personal safety

All feeder-related covers can only be

opened if the associated three-position

switch-disconnector has been switched to

the “EARTHED” position.

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

6

Option

Cable connection for cable elbow
plugs, cable routing tothe rear
(cable fixing by customer)

Option

Cable connection for
straight cable plugs,
cable routing downwards

18 Manual operation for the mechanism of

the load-break function

19 Switchgear vessel, filled with gas
20 Connecting bar to cable connection
21 Arrangement of cable connections
22 Cable compartment
23 Cable bracket
24 Cable (not included in the scope ofsupply)
25 Cover of the HV HRC fuse compartment
26 Connecting bar to the bushings

for the HV HRC fuse

27 Three-position switch-disconnector
28 Spring-operated/stored-energy mechanism
29 Bushing as interface type “A” for

cable plug with plug-in contact
O

ption: Bushing as interface type “C”

for cable plug with bolted contact (M16)

30 O

ption: Cable elbow plug with

plug-in contact

31 Cable compartment cover
32 M12 earthing connection
33 Spring-operated mechanism
34 Bushing as interface type “C“ for cable

plug with bolted contact (M16)

35 O

ption: Cable T-plug with bolted contact

36 Pressure relief device
37 O

ption: Straight cable plug with

plug-in contact

ption: Low-voltage compartment

38 O

Components

Three-position switch-disconnector, operating mechanisms

Three-position
switch-disconnector

The switching device used
is the proven three-position
switch-disconnector

Functions

Load-break function

•

Earthing function with

•

short-circuit making capacity
Switch positions

•

CLOSED – OPEN – EARTHED

Operating mechanisms

The three-position switch­disconnector is operated from
the switchgear front via

Detachable lever mechanism
(standard)

• Spring-operated mechanism
– With ”spring-operated

CLOSED” and ”spring-oper­ated OPEN” for installation
in ring-main feeders

Spring-operated/stored-

•

energy mechanism

– With ”spring-operated

CLOSED” and ”spring-oper­ated OPEN” for installation
in transformer feeders

–Withanadditionalenergy

store for the function ”stored­energy OPEN” after tripping
by the HV HRC fuse (striker
tripping) or by the shunt
release

ptions

O

•

Motor operating mechanism
for switch-disconnector

•

Rotary operating mechanism

•

Locking devices

•

Auxiliary contacts for three
position switch-disconnector
and make-proof earthing
switch

•

Shunt release for transformer
feeders

•

Closing lock-out for ring­main feeders

•

De-earthing lock-out for
transformer feeders

•

Different operating levers1)for
the operating mechanisms of
the switch-disconnector and of
the make-proof earthing switch

1) According to VDN */VDEW**

recommendation

* AssociationofGermanNetwork

Operators VDN e.V. at the VDEW in
Germany (as of 2003)

** Association of German

Power Stations – VDEW e.V.

Three-position switch-disconnector

s
p
e
2
0
1

­5
4
A
H

­R

Switchgear vessel of a
ring-main/transformer
block, scheme 10

1

(rear view)
1 Three-position switch-

disconnector in the
transformer feeder

2 Three-position switch-

2

disconnector in the
ring-main feeders

3 Pressure relief device

3

Operating mechanisms

s
p
e
a
3
0
1

­5
4
A
H

­R

s
p
e
4
0
1

­5
4
A
H

­R

s
p
e
5
0
1

­5
4
A
H

­R

7

s
p
e
a
6
0
1

-

­5
4
A
H

­R

s
p
e
7
0
1

­5
4
A
H

­R

Control board for detach­able lever mechanisms

(standard)

4

Example:
Ring-main/transformer block,

5

scheme 10

4 Locking device (option)

6

for the detachable lever
mechanism

5 Detachable lever

operation for the
earthing function

6 Detachable lever

operation for the
load-break function

7 Detachable lever

mechanism for the
ring-main feeder

8 Detachable lever

8

mechanism for the
transformer feeder

Control board for rotary
operating mechanisms

(option)
Example: Ring-main feeder

9

9 Symbols for the actuating

direction of the rotary
operating mechanism

10 Locking device for the ro-

10

tary operating mechanism

11 Rotary operating

mechanism (option)

11

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008

7

HA45-2364 eps

1400

~2

880

³

15

775

240

435

~560

2
3

5

1

4

HA45-2363 eps

~1762

880

³

15

775

240

435

~560

5

1

2
3
4

Components

HV HRC fuse assembly, secondary equipment, pressure absorber system

HV HRC fuse assembly

The HV HRC fuse boxes are
single-phase insulated and lo­cated above the transformer
feeder outside the switchgear
vessel.

Standards

(see page 21)

HV HRC fuse links with striker in
“medium” version according to

IEC 60 282-1

•

VDE 0670 Parts 4 and 402

•

DIN 43 625 main dimensions

•

Features

Requirements fulfilled as HV

•

alternating current switch­fuse combination

Selection of HV HRC fuses for

•

transformers
For further features

•

see Catalog HA 40.1

Secondary equipment (option)

Auxiliary switches, motor

•

operating mechanisms or
shunt releases wired to a
terminal strip

•

Location of the terminal strip
next to the operating mecha­nism module of the feeder
concerned

•

Customer-side cable routing
to the terminal strip from the
side or rear

Pressure absorber system

(option)

•

Maintenance-free

•

For all schemes (except radial
transformer panel, scheme 01)

•

For rated short-time with
stand current I
with IAC (internal arc

w 16 kA,

k

-

classification, see page 22)

•

With 105 mm deep pressure
relief duct for pressure relief
upwards

•

For overall height of switch-

gear:
–Standard:
–O

•

For wall-standing arrangement

•

Transformer cable routing:
–Standard:
–O

schemes 10, 71 and 72

•

Weight approx. 110 kg

1400 mm

ption: 1760 mm

Downwards

ption: To th e r ear for

HV HRC fuse compartment

s
p
e
8
0
1

­5
4
A
H

­R

Secondary equipment (option)

1

2

3

4

5

s
p
e
3
3
1

­5
4
A
H

­R

Pressure absorber system

(option)

Standard: Overall height 1400 mm

6

7

O

ption: Overall height 1760 mm

HV HRC fuse compartment
with cable compartment
cover removed

Phase L1:
HV HRC fuse box with
HV HRC fuse slide removed

Phase L2:
HV HRC fuse box closed

Phase L3:
Replacement of HV HRC fuses

Auxiliary switch, motor
operating mechanism and
shunt release

Example: Transformer feeder

1 Wiring duct
2 Te rm ina l str ip
3 Auxiliary switch at spring-

operated mechanism of a
ring-main feeder

4 Auxiliary contactors

(standard for motor
operating mechanism)

5 Motor operating mechanism

at spring-operated/
stored-energy mechanism

6 Locking device

(standard for motor
operating mechanism)

7 Shunt release at spring-

operated/stored-energy
mechanism

Sectional views of the
pressure absorber system

1 Wall distance
2 Pressure absorber system

with rear pressure relief
duct directed upwards

3 Cable bushing
4 Divided floor plate for

cable entry for on-site
installation

5 Floor opening for the

cable feeder

8

Switchgear Type 8DJ20 up to 24 kV, Gas-Insulated· Siemens HA 45.31 · 2008