Dead tank circuit breakers for 245 kV and 362 kV systems deliver enhanced safety, high performance, low maintenance, and efficient substation space utilization.
LS ELECTRIC America, a global leader in automation and power distribution, offers Beyond X™ Dead Tank Circuit Breakers for 245 kV and 362 kV applications. The Beyond X™ DTB platform helps utilities and grid operators strengthen safety, reliability, and operational efficiency in modern high-voltage substations.
Built for demanding high-voltage environments, the Beyond X™ DTB houses the interrupting chamber within a grounded metal tank, enclosing high-voltage components and reducing electrical hazards. This heavy-duty design provides superior protection against environmental factors while improving safety for maintenance personnel and the public by ensuring live parts are contained and grounded.
The Beyond X™ DTB also combines high fault-clearing performance with low-maintenance operation. LS ELECTRIC’s SF6 gas insulation and interruption technology delivers reliable arc-quenching performance, while the breaker’s high interrupting capacity and fast operation help isolate faults quickly and maintain power grid stability. Both the 245 kV and 362 kV models are rated for 63 kA short-circuit current, 2-cycle interrupting time, and 33.4 ms breaking time.
To support long-term reliability and lower lifecycle costs, the breaker is built with high-quality materials and robust construction to withstand mechanical and electrical stress. Its sealed design helps prevent contamination and degradation of internal components. Reduced maintenance requirements and extended service intervals help reduce downtime and lower operating costs over the life of the breaker.
The Beyond X™ DTB is engineered for efficient substation design and flexible operation. Its compact construction helps optimize layout and space utilization in substations with footprint constraints. Integrated control systems provide advanced monitoring and remote-operation capabilities, enabling operators to respond rapidly to system changes or faults.
Across the platform, LS ELECTRIC supports a wide range of utility requirements with rated continuous current options of 2000 A, 3000 A, 4000 A, and 5000 A, an ambient operating temperature range of -40°F to +122°F (-40°C to +50°C), and seismic capability in accordance with IEEE 693-2005 High. The 245 kV model features a common frame structure, while the 362 kV model uses a separate frame structure, supporting application flexibility across high-voltage substation environments.
By combining enhanced safety, environmental protection, easy installation and maintenance, operational flexibility through an integrated control system, economic efficiency, and efficient use of space, the Beyond X™ DTB reflects LS ELECTRIC’s commitment to delivering dependable solutions for high-voltage power systems. For utilities seeking to improve grid reliability and long-term performance, the Beyond X™ platform offers a strong combination of safety, durability, and operating efficiency.