Dead Tank Circuit BreakersAdvanced Switchgear Technology for Reliable PerformanceGrid Solutions at GE Vernova offers a comprehensive range of dead tank circuit breakers that support a voltage rating up to 550 kV, and are capable of carrying a continuous current up to 5,000 A. Our circuit breakers meet or exceed the latest IEEE/ANSI and IEC standards, including C2 and M2. They can be gang operated up to 245 kV, and Independent Pole Operation (IPO) is available at all voltage levels. The DT Series from Grid Solutions is characterized by advanced self-blast interrupters, leak resistant cast aluminum enclosures and durable low energy mechanisms. More than 120,000 circuit breakers with self-blast interrupters and spring-spring operated mechanism have been in service since 1989, including more than 30,000 dead tank circuit breakers. The SF6 dead tank circuit breakers assure a high level of reliability on a daily basis, even under extreme conditions such as low temperatures, highly active seismic areas, regions with high pollution levels, and a corrosive atmosphere. |
Utilities are heavily struggling with the decentralization of power generation and especially with the integration of renewable energy sources into the grid. Integration can conflict with existing modernization and optimization plans. Issues of reliability, safety, power quality and economics have to be taken into account when planning substations and choosing the right switchgear.
Additionally, power systems are already interconnected, highly complex networks that are susceptible to instability. Utilities face several challenges in managing and maintaining today‘s complex grid, including:
Overall, utilities are under intense scrutiny, by both regulatory agencies and the public, to prevent power system failures today, and in the future.
Grid Solutions' Solution
Grid Solutions offers utilities very reliable high voltage circuit breakers with advanced switchgear technology to improve grid stability and increase the efficiency of the transmission system infrastructure. The role of circuit breakers is to protect electrical equipment and system infrastructure, by fulfilling critical operational and safety functions. In normal operation, they carry nominal load currents, and depending on the installation, switch various equipment such as lines or transformers.
Grid Solutions at GE Vernova Advantage
Our dead tank circuit breakers are developed based on the highest standards for performance, ratings, user convenience and reliability. Every circuit breaker model is thoroughly tested to meet or exceed the latest IEEE and IEC standards including Class C2, Class M2, fast TRV and high asymmetry.
Unique and Superior Design Provides Optimal Performance and Lower Total Cost of Ownership
Manufacturing Excellence to Ensure Highest Quality Standards
Extensive Research, Testing and Proven Field Experience Resulting in Enhanced Reliability
Optional Features for Enhanced System Compatibility, Digital Integration, and In-House Expertise
Portfolio
Grid Solutions' dead tank circuit breakers, the DT Series, support system voltages from 38 kV to 550 kV and are designed for reliable performance, maximized safety, and lower cost of ownership. The DT Series is designed to operate within extreme environmental conditions including high elevation, very low and high temperatures (-60 °C to +60 °C ), seismic zones, polluted areas and corrosive atmospheres.
DT1-38
Dead Tank Circuit Breaker for 38 kV / 40 kA
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DT1-72.5
Dead Tank Circuit Breaker for 72.5 kV / 40 kA
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DT1-145 and DT1-170
Dead Tank Circuit Breakers for 123 kV, 145 kV and 170 kV / 40 kA More Info |
DT1-145 63 Dead Tank Circuit Breaker for 123 kV and 145 kV / 63 kA More Info |
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DT1-145R-40
Dead Tank Circuit Breaker with Pre-Insertion Resistors
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DT1-245P
Dead Tank Circuit Breaker for 245 kV / 40 kA
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DT1-245P 63 Dead Tank Circuit Breaker for 245 kV / 63 kA More Info |
DT1-362 Dead Tank Circuit Breaker for 362 kV / 63 kA More Info |
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DT2-550
Dead Tank Circuit Breaker for 550 kV / 63 kA
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XD/GE Dead Tank Circuit Breakers |
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XD|GE offers a comprehensive range of Dead Tank Circuit Breakers that support a voltage rating up to 800 kV and are capable of carrying a continuous current up to 5000A. For circuit breakers rated 363kV and above, the design features a fully integrated, maintenance free, hydro-mechanical operating mechanism, maximizing device stability and long-term reliability.
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Our DT Series is characterized by advanced self-blast interrupters, leak-resistant cast aluminum enclosures and durable low energy mechanisms.
Interrupting Chamber
Grid Solutions' circuit breakers use a proven innovative interrupter design with self-blast technology that significantly reduces the mechanical energy required to clear short-circuit currents. The interrupter design uses the arc energy to generate gas compression for efficient quenching of the arc itself.
As a member of the puffer family, the interrupter has two gas volumes within the chamber: one mechanical and one thermal. The design of the interrupter ensures that the circuit breaker will interrupt short-circuit fault current from low level faults to the full nameplate rating.
Spring-Spring-Operated Mechanism
Grid Solutions' has been developing and manufacturing spring-spring-operated mechanisms since 1938. The most recent state-of-the art evolution for these mechanisms is the FK3 range, which is used for all our high voltage switchgear applications including dead tank, live tank, generator circuit breakers, GIS, and hybrid solutions. Over 300,000 FK3 mechanisms are in operation worldwide.
The FK3 low energy spring-spring mechanism provides the highest level of reliability with Class M2 performance for 10,000 no-load close-open operations without the need for routine maintenance. With a spring-spring-operated mechanism there are no pneumatics or hydraulics, ensuring safe, reliable, and maintenance-free operation for the normal circuit breaker service life of 50 years or more.
Circuit Breaker Monitoring Solution CBWatch3 |
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CBWatch3 is a universal and compact device suitable for any kind of high voltage circuit breaker.
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Dedicated project teams are located in all regions throughout the world. These on-the-ground teams provide support and expertise to assist customers during different project phases. Local field service teams are also available worldwide, providing immediate support, training, and supervision.