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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