Abb Safering User manual

SafeRing / SafePlus 12-24kV

Installation and operating instructions

Product manual

CONTENTS

1. Safety 4

1.1 For your safety 4

1.2 Skilled personnel 4

1.3 Crucial information 4

2. General description 5

2.1 Outer assembly 6

3. Transport and handling 7

3.1 By receiving inspection 7

3.2 Storage 7

4. Technical data 8

4.1 Electrical data SafeRing 8

4.2 Electrical data SafePlus 8

5. Installation 9

5.1 Standard 3-way switchgear 9

5.2 3-way switchgear with base frame (AFL) 10

5.3 3-way switchgear with base frame (AFLR) 11

6. Dimensions 13

7. Internal arc classification (IAC) 14

8. Cable compartment 17

8.1 Standard cable compartment 17

8.2 Arc proof cable compartment 17

8.3 Cable connection 18

9. Extension of switchgear 19

9.1 External busbar 19

9.2 Side connection 19

10. Current and voltage transformers 19

11. Motor operation 20

12. Relay and current transformers 21

13. Pressure indicator 22

13.1 Gas pressure 22

13.2 Altitude 23

13.2.1 Adjustment of gas pressure 23

14. Operation of the switchgear 24

14.1 Operating conditions 24

14.2 General warnings and precautions 25

14.3 Putting into service 25

14.3.1 Preparatory work 25

14.4 Start-up 25

15 Operation 26

15.1 Operation of cable switch 26

15.2 Operation of vacuum circuit-breaker 27

15.3 Operation of vacuum circuit-breaker 12kV/25kA, 24kV/20kA 28

15.4 Operation of fuse-switch disconnector 29

15.5 Installation and replacement of fuses 29

15.6 Fuse selection tables 31

15.6.1 Fuse selection table - CEF 31

15.6.2 Fuse selection table - CEF-S 32

16. Metering module 33

17. Capacitive voltage indicators 34

17.1 Voltage indicators VPIS 34

17.2 Voltage indicators VDS 35

17.3 Voltage indicators VDS-LRM 35

18. Additional equipment 36

18.1 Low-voltage connections 36

18.2 Remote control and monitoring unit 36

19. Cable testing 37

19.1 Procedure for switchgear with test points 37

19.2 Procedure for testing directly on the cable 38

connector with the cable connected to

the switchgear

19.3 Procedure for testing directly on the cable 38

connector with the cable disconnected from

the switchgear

20. Service and maintenance 39

20.1 General warnings and cautions 39

20.2 Maintenance intervals 39

20.3 Inspection 39

20.4 Servicing 40

20.5 Repairs 40

20.6 Tool list SafeRing/SafePlus 41

21. Environmental certification 42

21.1 Life expectancy of product 42

21.2 Recycling capability 42

21.3 End-of-life 42

1. SAFETY

1.1 For your safety!

– Strictly follow these Installation and operating instructions.

– Only install switchgear in indoor conditions according to

IEC 62271-1 cl.2.1.

– Ensure that installation, operation and maintenance is

only carried out by professional personnel.

– Comply fully with the standards in force (IEC or local), the

connection conditions of the local power utility and the

applicable safety at work regulations.

– Observe the relevant information in the manual for all

actions involving the switchgear.

– Use gloves when installing or operating switchgear.

1.2 SKILLED PERSONNEL

All the installation, putting into service, running and main-

tenance operations must be carried out by skilled personnel

with in-depth knowledge of the apparatus.

When carrying out any maintenance work, the regulations in

the country of installation must be strictly obeyed.

Maintenance work must only be performed in a professional

way by trained personnel familiar with the characteristics of

the switchgear, in accordance with all the relevant IEC safety

regulations and those of other technical authorities, and also

respecting other overriding instructions. It is recommended

that ABB service personnel be called in to perform the servic-

ing and repair work.

1.3 CRUCIAL INFORMATION

Pay special attention to the information shown in the manual

by the following attention symbol:

After this symbol there are four different explanations indicat-

ing what types of injuries or damage can be caused should

the recommended precautions not be followed:

–DANGER - identifies the most serious and immediate

hazards which can cause serious personal injury or death

–WARNING - identifies hazards or unsafe practices which

can result in serious personal injury or death

–CAUTION - identifies hazards or unsafe practices which

can result in minor personal injury or product or property

damage

–NOTE - identifies important procedures or requirements

that, if not followed, can result in product or property

damage

WARNING

Make sure that the specified electrical ratings are

not exceeded under switchgear operating condi-

tions. Keep the manuals accessible to all personnel

involved in installation, operation and maintenance.

The user’s personnel are responsible for all matters

regarding safety in the workplace and correct use

of the switchgear.

WARNING

Always follow the instructions in the manual and

respect the rules of good engineering practice

(GEP)! Hazardous voltages can cause serious in-

jury or death! Disconnect the power and earth live

parts before proceeding with any work on the

switchgear. Follow the safety regulations in force in

the place of installation.

If you have any further questions about this manual, our field

service team will be pleased to help. See the back cover of

this manual for contact information.

SafeRing 3-way unit CCV

2. GENERAL DESCRIPTION

SafeRing is a SF6-insulated ring main unit and SafePlus is a

SF6-insulated compact switchgear for applications in medium

voltage distribution networks. SafeRing and SafePlus offer a

sealed stainless steel tank which contains all the live compo-

nents and switching functions. The transformer is protected

either by a switch fuse combination or a vacuum circuit-

breaker.

The units are delivered from the factory ready for installation.

SafeRing can be supplied as a 2, 3 or 4-way unit in standard

configurations with additional equipment according to custo-

mer specification.

Available configurations:

DeF, CCF, CCC, CCCF, CCFF, DeV, CCV, CCCC, CCCV,

CCVV.

SafePlus has a unique flexibility due to its extendibility and the

possible combination of fully modular and semi-modular confi-

gurations, with a maximum of 5 modules in one SF6-tank.

The units are delivered from the factory ready for installation.

Routine tests are carried out on all units/ modules before

dispatch.

No special tools are required for installing the equipment.

Available modules are :

C - Cable switch

F - Switch fuse disconnector

D - Direct cable connection

De -Direct cable connection with earthing

V - Vacuum circuit-breaker

Sl - Busbar sectionalizer, load break switch

Busrise needed when SL on right side of SF6 tank

Sv -Busbar sectionalizer, vacuum circuit-breaker

Sv always together with busrise (total width=650 mm)

Be - Busbar earthing

M - Metering cubicle

V20, V25 - Vacuum circuit-breaker 20/25kA

Sv20, Sv25 - Busbar sectionalizer, vacuum circuit-breaker

20/25kA.

SafeRing / SafePlus with switch fuse combination in

compliance with IEC 62271-105.

With this unit the transformer will be protected by current-

limiting HV fuses in combination with a load break switch.

The load break switch is equipped with a stored spring energy

mechanism which can be tripped by the fuse striker pin.

SafeRing / SafePlus with vacuum circuit-breaker in

compliance with IEC62271-100

With this unit the transformer will be protected by a vacuum

circuit-breaker combined with relays and current transformers.

The standard relays are based on digital technology and do

not require an external power supply.

Further information can be found in the product catalogue for

SafeRing and SafePlus, 1VDD006104 GB.

2.1 OUTER ASSEMBLY

Upper front cover

1. Manometer

2. Nameplate of module

3. Short circuit indicator

4. Capacitive voltage indication

5. Load break / earthing switch position indicator

6. Push buttons close/open operation

7. Charged spring indicator

8. Self-powered protection relay

9. Vacuum circuit-breaker position

Lower front cover

10. Nameplate of switchgear

11. Fuse blown indicator

12. Disconnector / earthing switch position indicator

13. Capacitive voltage indication

Cable compartment cover

14. Cable compartment cover standard

15. Cable compartment cover with inspection window

16. Support bar (removable)

Side cover

17. Lifting lug

18. Operating handle (suspended on the side wall, by

default on the right-hand side wall)

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SafePlus

56 7 8

3. TRANSPORT AND HANDLING

The units are delivered from the factory ready for installation.

3.1 BY RECEIVING INSPECTION

Upon receiving the SafeRing / SafePlus please check that the

delivered equipment has not been damaged during transport.

If any such damage has occurred, a claim must be submitted

to the carrier immediately.

After unpacking, the following must be checked:

1. Operating handle – one piece should be included, normally

fixed on right-hand side.

2. Check that the pointer on the pressure indicator is in the

green area.

3. Carry out a function test on the mechanical parts.

4. Visual check of the switchgear.

Any faults or omissions must be reported immediately to

the supplier.

3.2 STORAGE

SafeRing / SafePlus must be stored under cover in a dry and

well ventilated area until it is installed and put into operation.

NOTE:

Use only approved slings when lifting.

Maximum angle on lifting lugs is set to 60o.

Weight table

Maximum weights for standard SafeRing

2-way DeV 300 kg 2-way DeF 300 kg

3-way CCV 450 kg 3-way CCF 450 kg

4-way CCCV 600 kg 4-way CCCF 600 kg

4-way CCVV 600 kg 4-way CCFF 600 kg

3-way CCC 450 kg

4-way CCCC 600 kg

SafePlus

Standard 1-way 150 kg

2-, 3- and 4-way as for SafeRing

5-way 750 kg

M - metering module incl. trafo 250 kg

Mt - metering tariff module incl. trafo 350 kg

The weights are without additional equipment, except for

transformers for M- and Mt-modules

SafeRing / SafePlus is fitted with lifting lugs, but can also be

moved on a pallet with a forklift truck. Make sure to secure

the switchgear.

Max angle 60o

4. TECHNICAL DATA

4.1 ELECTRICAL DATA SAFERING

4.2 ELECTRICAL DATA SAFEPLUS

SafeRing

C-module F-module V-module

Switch

disconnector Earthing switch Switch-fuse

combination Earthing switch Vacuum

circuit-breaker Earthing switch

Rated voltage kV 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24

Power frequency withstand voltage kV 286)/38/50 286)/38/50 286)/38/50 286)/38/50 286)/38/50 286)/38/50

Impulse withstand voltage kV 95/95/125 95/95/125 95/95/125 95/95/125 95/95/125 95/95/125

Rated current A 630/630/630 2001) 200/200/200

Breaking capacities:

active load A 630/630/630

closed loop A 670/670/670

off load cable charging A 141/141/141

off load transformer A 20/20/20

earth fault A 205/160/160

earth fault cable charging A 117/91/91

short-circuit breaking current kA see 2) 16/16/16

Making capacity kA 52,5/40/40 52,5/40/40 see 2) 12,5/12,5/12,5 40/40/40 40/40/40

Short time current 0,5 sec 3) kA 16/16/16

Short time current 1 sec 4) kA 5/5/5 16/16/16

Short time current 3 sec 5) kA 21/16/16 21/16/16 16/16/16

1) Depending on the current rating of the fuse-link 2) Limited by high voltage fuse-links 3) Maximum rating for bushings Interface A (200 series plug-in)

4) Maximum rating for bushings Interface B (400 series plug-in) 5) Maximum rating for bushings Interface C (400 series bolted)

6) GOST version is available with 42kV power frequency withstand voltage

SafePlus

C-module F-module V-module V20/V25 module

Switch

disconnector

Earthing

switch

Switch-fuse

combination Earthing switch

Vacuum

circuit-

breaker

Earthing

switch

Vacuum

circuit-

breaker

Earthing

switch

Rated voltage kV 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24 12/17,5/24 12/24 12/24

Power frequency withstand voltage kV 281)/38/50 281)/38/50 281)/38/50 281)/38/50 281)/38/50 281)/38/50 281)/50 281)/50

Impulse withstand voltage kV 95/95/125 95/95/125 95/95/125 95/95/125 95/95/125 95/95/125 95/125 95/125

Rated current A630/630/630 200 2) 630/630/630 630/630

Breaking capacities:

closed loop A650/650/650

off load cable charging A140/140/140

off load transformer A20/20/20

earth fault A205/160/160

earth fault cable charging A117/91/91

short-circuit breaking current kA see 3) 21/16/16 25/20 25/20

Making capacity kA 65/52,54)/52,5 62,5/52,54)/50 see 3) 12,5/12,5/12,5 52,5/40/40 52,5/40/40 65/50 62,5/50

Short time current 0,5 sec 5) kA 16/16/16

Short time current 1 sec 6) kA 25/-/- 25/-/- 5/5/5 16/16/16 25/21 25/21

Short time current 3 sec 7) kA 25/214)/21 25/214)/21 21/16/16 21/16/16 25/21 25/21

1) GOST version is available with 42kV power frequency withstand voltage 2) Depending on the current rating of the fuse-link 3) Limited by high voltage fuse-links