Siemens Integrated Electric-Racking System (SIERS) is an option that is available with Siemens type GM-SG non-arc-resistant, medium-voltage switchgear. It provides additional personnel protection against arc-flash exposure for operators by providing a means of remotely racking the type GMSG drawout circuit breaker. SIERS reduces the need for personal protective equipment (P.P.E.) per the NFPA-70E(R) standard.
Maintain all of the safety interlocks as required by IEEE standard C37.20.2
Logic control module for control and circuit protection
Control pendant (hand-held controller)
High-torque, fixed-mounted dc motor
Available for 125 V dc external power supply
Factory installed and tested as a complete racking system.
Powered from 120 V ac sources in switchgear
Provision for external power source
Integrated into the switchgear secondary control circuits or with the protection relay to provide interface with local HMI or SCADA systems
Field retrofit for existing Siemens type GM-SG non-arc-resistant, medium-voltage switchgear.
Type SIERS device is available in three configurations:
Local HMI version (Smart-Gear(R) power distribution solution)
Custom version (i.e., SCADA or other system).