Tavrida Electric Vacuum Circuit Breakers

  • Highest Reliability
    Tavrida Electric's circuit breakers offer unrivalled reliability. Unlike other circuit breakers, they continuously monitor all secondary circuits. In the unlikely event of a malfunction, the circuit breakers will accurately indicate it locally with LED and remotely via relay contacts. Service team can fix a malfunction before it leads to a problem. 

  • Fastest operation
    Tavrida Electric's circuit breakers are the fastest on the market with opening times of 12 ms or less and closing times of 24 ms or less*. There's no better way to: minimize the risks to personnel or members of the public; minimize damage to switchgear and other network equipment; limit the fault's current level; or reconnect critical loads to an alternative power supply. 
  • Highest efficiency
    Tavrida Electric's circuit breakers are the most efficient on the market, evidenced by their impressive record of 50,000 CO operations at rated current and 100 full-rated short circuit operations without requiring maintenance. 

  • Operates in any orientation, most compact dimensions
    Tavrida Electric's circuit breakers operate reliably regardless of their orientation. The overall dimensions of the 17.5 kV circuit breaker do not exceed 579 x 695 x 300mm (H x W x D). The 24 kV circuit breaker does not exceed 549 x 690 x 300mm. These dimensions make them the perfect choice for newly developed switchgear or retrofit solutions.
  • Special application circuit breakers

    Tavrida Electric has revolutionised circuit breaker design by developing a new generation of circuit breakers and controls with exceptionally fast opening, closing and response times. Opening and closing times are as low as 12 and 24 ms, respectively. This enables: 

    • Fast transfer switches with transfer times as fast as 2 cycles.
    Such quick operational times allows very sensitive loads to operate without interruption in case of a main power source loss. The fast transfer switch solution: 
    - eliminates costly downtime,
    - reduces production equipment stress, 
    - ensures quick return on investment.

    • Arc flash mitigation with interruption in one period.
    That quick interruption time:
    - increases operational safety,
    - reduces switchgear restoration time and loss of productivity,
    - limits switchgear damage and repair costs.

    • Fault current limiting solutions without operational losses capable to automatically reconnect power sources. 
    Tavrida Electric fault current limiting solutions:
    - ensure maximum use of distributed generation,
    - protect downstream equipment from high short circuit fault currents,
    - improve operational safety.

    Special application circuit breakers
  • OEM solutions and VCBs for retrofit

    Tavrida Electric cooperates with more than 300 switchgear manufacturers and retrofit solutions providers. Over many years of cooperation, Tavrida Electric VCBs have proved versatile and easy-to-use for both new and existing switchgear panel designs, as well as for retrofit solutions. They are the smallest and lightest solution on the market, work regardless of orientation and are easy to install.

    OEM solutions and VCBs for retrofit
  • Single Phase Circuit Breakers

    Tavrida Electric's circuit breakers are the perfect match for applications like transformers or generators with a neutral earthing, server rooms and point on wave switching. The circuit breakers weigh less than 14 kg, meaning they can be installed quickly and cost effectively in even the smallest of spaces. 

    Single Phase Circuit Breakers

DESIGN AND OPERATION

Vacuum Circuit Breakers

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  1. Tavrida Electric manufactures small, compact vacuum interrupters with an extraordinarily long mechanical and electrical lifespan. A specially designed axial magnetic field distribution provides an even current density over the contact surface, substantially improving the vacuum interrupting performance.

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  2. Vacuum interrupter contacts have unique design, based on the mixture of copper and chromium metals and various dopants, to ensure long electrical life of contacts, low contacts resistance and chopping current.

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  3. The patented, super-compact actuator design allows the circuit breaker to be installed directly underneath each pole. The design is optimal in terms of reliability, dimensions, weight and ease of installation.

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  4. A spring charged by the magnetic actuator during the closing of the circuit breaker ensures main contacts pressure is maintained. The spring is integrated in the actuator and does not require any maintenance during the circuit breaker's lifetime.

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  5. Circuit breaker terminals are designed to reduce contact resistance and mitigate the risk of contacts overheating.

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  6. The use of robot welded steel discs as opposed to folded bellows eliminates the main failure point of conventional circuit breaker designs and allows interrupter to do more than 150,000 CO cycles and contain high vacuum (10-6 Pa) for the entire lifetime.

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  7. Tavrida Electric realized early on that the complexity and bulk of conventional operating mechanisms made them unreliable and reduced their lifespan. Every Tavrida Electric circuit breaker uses patented actuators designed and fabricated within our own facilities to drive the interrupter contacts. All switching elements of a pole are assembled along a single axis meaning all mechanical movements are direct and linear.

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Control module СМ_16

  • Continuous self-supervision. Vacuum circuit breakers equipped with the CM16 control module continuously monitors control, switching modules, functional wiring and auxiliary power supply quality. CM16 eliminates the necessity of additional trip and close coils, charging mechanisms and all related wiring supervision. The whole trip and close circuit supervision comes in single package with any Tavrida Electric VCB. CM16 allows the user to forget about scheduled trip and close wiring inspections - as in the event of malfunction corresponding notification will be sent to the operator using one of the inbuilt output relays and indicated by inbuilt in CM LEDs.
  • Low power consumption. Vacuum circuit breakers equipped with the CM16 control module need less than 42 W in charging mode – just 10% of what the best alternatives available on the market need! Such low power consumption finally solves the problem of auxiliary power supply – much less powerful source and UPS can now provide substation auxiliary equipment with required power.
  • Ease of use and robustness. CM16 type control modules are connected with the circuit breaker they control and supervise be means of simple wires. It allows the CM installation to be located at any position convenient for the OEM, system integrator or End-user location. Very compact dimensions and low weight further simplify the process. CM16 has a robust design, enclosed in an aluminium housing it provides high EMC level confirmed by KEMA test laboratories.
 
*Compared with a standard breaker's opening and closing times of ≤ 35 ms and ≤ 70 ms respectively.