SHS2 Gas insulated switch–disconnector / isolator SHS2 Presentation, Dalmine – Italy - August, 2010 SHS2 Gas insulated switch–disconnector / isolator 1VCP000048 – Rev. B, en – Presentation – 2010.09 © ABB Group April 14, 2017 | Slide 1

SHS2 Main 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

Characteristics Main 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

SHS2 Basic dimensions (to fit 500mm/375mm width panels) Caption: Insolators; Enclosure Operating mechanism Rupture disk 495 (panels width 500) 371,5 (panels width 375) 1 1 2 4 3 1

SHS2 Three positions Open Line Earth 2 1 3 4 Caption Switching shaft Fixed contact Moving contact Earthing contact Open Line 1 2 3 Earth 4

SHS2 Stainless steel enclosure EARTHED metallic segregation between busbar and feeder compartments 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

SHS2 Operative mechanical version   T1 - T1M T2-T2M T3-V1 T4 On exceeding dead centre x -- Stored energy Independent operation (from operator) Dependent operation (from operator) Switch disconnector + Earthing switch Isolator + Earthing switch Spaced earthing switch only Motorized operative mechanism Opening coil

SHS2 Front plate 4 1 3 5 6 2 Caption: Switch disconnector slot Earthing switch slot Interlock lever Mechanical position indicator Voltage indicator Key-locks 2 6 3 1 4 5

SHS2 Available key-locks

SHS2 Accessories Line and Earth key locks Fuse Holder Spaced Earthing Switch 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) (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)

SHS2 Accessories Caption: Line key locks Earth key locks 5 3 Caption: Line key locks Earth key locks Auxiliary contacts Opening coil Voltage indicators 4 1 2 1 2 3

SHS2 For circuit-breaker unit completion HD4/R: Circuit breaker gas insulated; VD4/R: Circuit breaker vacuum insulated 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 2

SH2/T2/N SHS2/T1M SHS2/T1M/N SHS2 For panel solutions equivalent to UniMix type SHS2/T1 SHS2/T1/N SHS2/T2 SH2/T2/N SHS2/T1M SHS2/T1M/N SHS2/T2M SHS2/T2M/N SHS2/T2F SHS2/T2F/N SHS2/T2MF SHS2/T2MF/N SHS2/I SHS2/I/N SHS2/IF SHS2/IB SHS2/ES UNIMIX P3 Width 500 and 375 mm UNIMIX P2 Width 500 and 375 mm UNIMIX ASR Width 500 and 375 mm UNIMIX M Width 500 mm UNIMIX P1F Width 750 mm UNIMIX A Width 500 mm

© ABB Group April 14, 2017 | Slide 14 14