Read how Siemens' new arc-resistant switchgear technology design resulted in smaller project footprint and lower overall cost for a National Grid substation project here.
Read about how Siemens to provide all major electrical equipment for fuel efficient power plant in Michigan, including GM-SG-AR 63 kA switchgear here.
Watch the brief overview of how the City of Holland collaborated with Siemens on Holland Energy Park here.
Arc-resistant to IEEE C37.20.7, up to 63 kA, 0.5 sec, accessibility type 2B
Application flexible exhaust system
Top-mounted pressure relief channel factory-installed for reduced installation time
One-high or two-high construction
Up to 100 full-fault interruptions
Universal spare circuit breaker
Interlocks permit insertion of higher rating vacuum circuit breaker into lower-rated cell but not vice-versa
Front accessible circuit breaker operating mechanism for ease of maintenance
Closed door racking
Floor rollout circuit breaker in lower cell without a dolly
Visible secondary disconnect
Circuit breaker ships inside of cell, thus reducing installation cost and transit damage
Instrumentation and controls located in a separate compartment isolated from all primary circuit elements
Pair with Siemens protective relays to match any typical application
Siemens Integrated Electric-Racking System (SIERS) is optionally available.
Horizontal drawout type GMSG vacuum circuit breaker with type 3AH3 operating mechanism
Uses the latest developments in vacuum interrupter technology
Highly reliable vacuum interrupters - MTTF over 53,000 years
Common type 3AH3 operator platform for all ratings
Over 120,000 3AH3 operators produced since 1998
10,000 operations to overhaul
Three-cycle interrupting time (optional)
Meets or exceeds the latest ANSI, IEEE and NEMA standards
UL or C-UL Listing available
Available as indoor (GM-SG) and Shelter-Clad (SGM-SG-AR).