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HV Gas Insulated Circuit Breakers

Mitsubishi Electric High Voltage Circuit Breakers offer protection and isolation of critical power transmission infrastructure and equipment.

Substation equipment often costs millions of dollars and the reliability and safety of these assets largely depend on power circuit breakers. When a circuit breaker fails, it can damage surrounding equipment, contributing to costly outages and the endangerment of lives. To meet today’s crticial demands Mitsubishi Electric High Voltage Dead-Tank Power Circuit Breakers cover a range of 72.5kV to 800kV with interrupting classes spanning 40kA to 80kA.

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Beyond their primary function of protection, high voltage circuit breakers often are highly customized and engineered solutions. They have varying designs, with extensive maintenance and operating expense implications. Choosing the right vendor as an equipment and solution provider can mean the difference between a completed project, a reliable design, a speedily resolved issue, and reduced maintenance and operating expenses. As your vendor of choice, Mitsubishi Electric offers reliable circuit breakers designed for low operation and maintenance costs, a dedicated service team, a design team focused on tailored solutions and technical support, and the potential to be our partner, unlocking special incentives. Taken together, our offerings and services maximize the value of your purchase.

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Understanding Total Value

We can implement a total cost of ownership (TCO) analysis to assist in highlighting the differences in purchase price -vs- long-term cost to showcase all necessary factors when selecting the best option for you.

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MEPPI Alliance Program

Qualifying MEPPI customers will receive expanded benefits beyond the industry-leading customer service and support that every customer receives.

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HV Dead Tank SF6 Gas Circuit Breaker Product Line

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123–145–170kV

  • Pure puffer interrupter
  • Temperature range:
    • Without tank heater: –30°C to +50°C
    • With tank heater: –50°C to +50°C
  • Meets IEEE and IEC Standards
  • 12-year, condition-based maintenance cycle
  • Fully assembled and tested in the USA
  • Spring-spring mechanism
  • No maintenance mechanism option
  • Independent Pole Operated (IPO) and Gang Operated options 

Full Breaker Ratings
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245kV

  • Pure puffer interrupter
  • Temperature range:
    • Without tank heater: –30°C to +50°C
    • With tank heater: –50°C to +50°C
  • Meets IEEE and IEC Standards
  • 12-year, condition-based maintenance cycle
  • Fully assembled and tested in the USA
  • No maintenance mechanism option
  • Options for 63kA without TRV capacitors
  • Spring-spring mechanism
  • Independent Pole Operated (IPO) and Gang Operated options
Full Breaker Ratings
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362kV

  • Pure puffer interrupter
  • Temperature range:
    • Without tank heater: –30°C to +50°C
    • With tank heater: –50°C to +50°C
  • Meets IEEE and IEC Standards
  • 12-year, condition-based maintenance cycle
  • Fully assembled and tested in the USA
  • No maintenance mechanism option
  • Options for 63kA without TRV capacitors
  • Spring-spring mechanism or pneumatic open-spring close
  • Independent Pole Operated (IPO) and Gang Operated options
Full Breaker Ratings
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550kV

  • Pure puffer interrupter
  • Temperature range:
    • Without tank heater: –30°C to +50°C
    • With tank heater: –50°C to +50°C
  • Meets IEEE and IEC Standards
  • 12-year, condition-based maintenance cycle
  • Fully assembled and tested in the USA
  • Pneumatic open-spring close mechanism
Full Breaker Ratings
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765kV

  • Pure puffer interrupter
  • Temperature range:
    • –30°C to +50°C
  • Meets IEEE and IEC Standards
  • 12-year, condition-based maintenance cycle
  • Fully assembled and tested in the USA
  • Pneumatic open-spring close mechanism
Full Breaker Ratings

Reliable, Secure and Sustainable Energy Systems

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Industries

Energy systems to power a safe, sustainable, and secure future

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Services

Providing inspection, maintenance, upgrades and service for energy power systems

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Solutions

Turnkey engineering, design, logistical and project management solutions

We're here to help!

Our expert sales staff have the knowledge, experience and vision to help you with your High Voltage Transmission requirements.

Contact Us