Vacuum Circuit Breaker (ISM)

Tavrida ISM series is the lightest and most compact medium voltage circuit breakers available on the market today.

• All components are assembled along a single axis, with three mono-stable magnetic actuators (one per pole).
• The actuators are mounted in a steel frame and are mechanically linked by a synchronizing shaft.
• Long mechanical and interrupting lives
• The actuators drive a pulling insulator that in turn connects to the advanced Tavrida vacuum interrupters at the top of the breaker.

This single-axis design results in the highest reliability available today: Maintenance free with a total life expectancy of > 30 years, and up to 150,000 close - open operations. The Tavrida ISM can be installed in any orientation which makes it equally suitable to either new switchgear or retrofit applications.

Withdrawable Circuit Breaker (ISMD)

The ISMD is the withdrawable version of our ISM. It is ready to use in a wide range of draw-out type switchgear and covers the ratings and pole center distances of our ISM.

Outdoor Circuit Breaker (OSM)

Tavrida Electric's Outdoor Circuit Breaker OSM is designed for the use as an automatic circuit Recloser on overhead distribution lines and as an outdoor circuit breaker in distribution substation applications for voltages up to 27kV. 30.000 C-O operations with rated current or 200 operations with full short-circuit breaking current makes them the most reliable product in the market. Tavrida's light vacuum circuit breaker and the robust aluminum tank contribute to the total weight of the OSM of not more than 77kg making this the most light weight outdoor circuit breaker in the market. The OSM is air insulated. The patented combined insulation makes them an environmental friendly option.

Built for the worst conditions, the OSM has been tested at the KIPTS harsh environment test labs in South Africa, achieving the highest rating for both pollution and weather resistance. Worldwide installations have shown the OSM performing at the most extreme temperatures, from -50°C in Russia to +55°C in the Middle East.

Autorecloser (REC)

Tavrida has combined their innovative vacuum circuit breaker technology with a novel recloser control that is unrivalled in reliability and ease of control. Available in both 15 and 27 kV, the OSM series are easily the most lightweight and compact reclosers available on the market. Unequalled in features to control your network, Tavrida recloser systems can be used for ring or radial configurations, offering full back-feed restoration and sectionalizing capability. The Autorecloser provides the following advantages:

• Directional over-current protection
• Directional earth fault protection
• Directional sensitive earth fault protection
• Under-voltage protection
• Cold load pickup
• Inrush restraint
• Voltage reclosing control which allows the customer to program loop automation functionality
• Separate event logs for close open operations & fault protection operations
• Instantaneous voltage, current and power metering
• Load profile data
• DNP3 and Modbus protocols
• Programmable digital inputs/outputs