1VCP000048 – Rev. B, en – Presentation – 2010.09© ABB Group April 18, 2023 | Slide 1

SHS2 Gas insulated switch–disconnector / isolator

SHS2 Presentation, Dalmine – Italy - August, 2010

SHS2Main features

SF6-insulated Switch Disconnector - Isolator

Suitable for metal-enclosed secondary distribution switchgear

Stainless steel enclosure

3 positions: LINE - OPEN - EARTH

Earthing switch with making capacity

Separate operation slots for Switch-disconnector and Earthing Switch

CharacteristicsMain Data

Rated voltage kV 24

Power frequency withstand voltage (50-60 Hz/1 min) (*) kV 50 (60)

Impulse withstand voltage (*) kVp 125 (145)

Rated frequency Hz 50/60

Rated Normal current (t.a. 40°C) A 400/630

Short-time current - 1s kA 12.5/16/20/25

Making capacity kA 31.5/40/50/62.5

Gas absolute pressure (20 °C) kPa 125

Distance between phases mm 230

Electrical life (**) Class E3 (line)

Class E1 (earth)

Mechanical endurance Class M1 (**)

(*) withstand voltage between phase and earth and between phases (withstand voltage between open contacts)

(**) According to IEC 60265-1, IEC 60129

SHS2Basic dimensions (to fit 500mm/375mm width panels)

11

2

3

1

495 (panels width 500) 371,5 (panels width 375)

4

Caption:

Insolators;

Enclosure

Operating mechanism

Rupture disk

SHS2Three positions

12

3

4

LineOpen

Earth

Caption

1.Switching shaft

2.Fixed contact

3.Moving contact

4.Earthing contact

SHS2Stainless steel enclosure

Maximum safety during maintenance and operations in the cable or fuse compartment even with busbars energized

Reduced risk of short circuit between phases or between the two insulators of the same phase

EARTHED metallic segregation between busbar and feeder compartments

SHS2Operative mechanical version

  T1 - T1M T2-T2M T3-V1 T4

On exceeding dead centre x -- -- x

Stored energy -- x -- --

Independent operation (from operator)

x x -- x

Dependent operation (from operator)

-- -- x --

Switch disconnector + Earthing switch

x x -- --

Isolator + Earthing switch -- -- x --

Spaced earthing switch only -- -- -- x

Motorized operative mechanism x -- -- --

Opening coil -- x -- --

SHS2Front plate

2

6

3

6 1 4

5

5

Caption:

1. Switch disconnector slot

2. Earthing switch slot

3. Interlock lever

4. Mechanical position indicator

5. Voltage indicator

6. Key-locks

SHS2Available key-locks

Line operation Earth Operation1 Free-key for Switch disconnector in open position 1 Free-key for Earthing switch in open position1 Free-key for Switch disconnector in close position 1 Free-key for Earthing switch in close position1 Free-key for Switch disconnector in close position 1 Free-key for Earthing switch in close position1 Free-key for Switch disconnector in open position 1 Free-key for Earthing switch in open position2 Free-keys for Switch disconnector in open position 2 Free-keys for Earthing switch in open position2 Free-keys for Switch disconnector in close position 2 Free-keys for Earthing switch in close position

SHS2/I - SHS2/I/N - SHS2/IF SHS2/IB1 Free-key for Isolator in close position 1 Free-key for Isolator in open position1 Free-key for Isolator in open position 1 Free-key for Isolator in open position1 Free-key for Isolator in open position 1 Free-key for Earthing switch in close position1 Free-key for Earthing switch in close position 1 Free-key for Earthing switch in close position1 Free-key for Earthing switch in close position 2 Free-keys for Earthing switch in close position2 Free-keys for Earthing switch in close position1 Free-key for Isolator in close position1 Free-key for Isolator in open position

1 Free-key for Isolator in close position SHS2 equipped with T4 operative mechanism1 Free-key for Isolator in open position SHS2/ES1 Free-key for Earthing switch in close position 1 Free-key for Earthing switch in open position1 Free-key for Isolator in close position 1 Free-key for Earthing switch in close position1 Free-key for Earthing switch in close position 1 Free-key for Earthing switch in open position1 Free-key for Isolator in close position 1 Free-key for Earthing switch in close position2 Free-keys for Earthing switch in close position 2 Free-keys for Earthing switch in close position

SHS2 equipped with T1 e T2 operative mechanism

SHS2/T1 - SHS2/T1/N - SHS2/T1M - SHS2/T1M/N - SHS2/T2 - SHS2/T2/N - SHS2/T2F - SHS2/T2F/N

SHS2 equipped with T3 operative mechanism

SHS2Accessories

Line and Earth key locks Auxiliary contacts (2NA+2NC for each position) (1) Voltage indicators (3) Frame with isolators or isolators with capacitive dividers (4) Opening coil (24 – 48 – 110 – 220 Vdc/ac) (2) Door lock Motor operation (24 Vcc 48-110-220Vdc/Vac) for spring

operating mechanism) Fuse adaptors (for fuse length e=192 mm and e=292mm) Spaced earthing switch (making capacity 2,5kA)

Fu

se H

old

erS

pac

ed E

arth

ing

Sw

itch

(1) On T2 (stored energy) operative mechanism when the opening coil is required for switch disconnector in closed position a maximum of 1NO+1NC auxiliary contacts are available

(2) Available only on T2 operative mechanism(3) Require accessory (4)

SHS2Accessories

4 1

2

1 2

3

5

3

5

Caption:

1. Line key locks

2. Earth key locks

3. Auxiliary contacts

4. Opening coil

5. Voltage indicators

SHS2For circuit-breaker unit completion

Lateral operation mechanism

230 mm pole distance

Protection relay on board:

• PR 521 Self-supplied (50-51-51N)

• REF 601 (50-51-50N-51N)

1. HD4/R: Circuit breaker gas insulated;

2. VD4/R: Circuit breaker vacuum insulated

1

2

UNIMIX P3Width 500 and 375 mm

UNIMIX ASRWidth 500 and 375 mm

UNIMIX P2Width 500 and 375 mm

UNIMIX AWidth 500 mm

UNIMIX MWidth 500 mm

UNIMIX P1FWidth 750 mm

SH

S2

/T1 S

HS

2/T

1/N

SH

S2/T

2

SH

2/T

2/N

SH

S2

/T1

M

SH

S2

/T1M

/N

SH

S2

/T2F S

HS

2/T

2F/N

SH

S2

/I S

HS

2/I

/N

SH

S2

/IF

SH

S2

/IB

SH

S2

/ES

SH

S2

/T2M

SH

S2/T

2M

/N

SHS2For panel solutions equivalent to UniMix type

SH

S2

/T2M

F

SH

S2/T

2M

F/N

© ABB Group April 18, 2023 | Slide 14