SM6^ä Series Circuit Breaker Monitors

The series consists of three base models, the SM6-0ä, the SM6-1ä and the SM6-3ä, and their enhancement modules.  All SM6 series monitors work on the same basic principle. These monitors gather data, store it and provide user-settable alarms to prevent breaker malfunction.

The base units and modules can withstand harsh substation environments.  They provide accurate monitoring of sulfur hexaflouride (SF6) gas pressure/temperature and density even during environmental extremes, avoiding the need to rely on mechanical measuring instruments, graphs or operator interpretations.  The SM6 Monitors operate from minus 50° C (-58° F) to 60° C (140° F), and have withstood repeated electrical discharges of one million volts.

All gathered breaker information can be accessed in the field by a PC, or remotely through your communication system.  Technical support staff is available for installation of your monitors.

Base Units

The SM6-0 is a microprocessor-based gas density monitor for SF6 gas-filled, high voltage equipment. It continuously displays the density of SF6 gas in percentage (%) form on the LCD.

All information is recorded and stored in memory for up to nine years. Data can be provided in graphic or numeric form to trend the performance of the equipment being monitored. Alarm levels that are determined by the user can alert operators of low gas levels and provide advance notice of SF6 liquefaction due to low temperatures.

The SM6-1 and  SM6-3 units operate on the same principle as the SM6-0.  Enhancement modules can be added for additional monitoring capabilities. This allows the user to build a highly adaptive system configured to satisfy specific requirements.

The SM6-3 is able to monitor the pressure and temperature of three SF6 gases individually.  Enhancement Modules can be added for expanded monitoring needs.

Adobe Acrobat Reader is required to view this file.