SIEMENS DEAD TANK CIRCUIT BREAKERS- AIR INSULATED SWITCHGEAR

We deliver dead tank circuit breakers for applications from 72.5 kV to 550 kV with a service life of up to 50 years. Our DT circuit breakers deliver the greatest possible reliability – even in extreme environmental conditions. The interrupter unit in this technology is located in a grounded metal-enclosed housing.

All construction types of our dead tank circuit breakers consist of the same basic components: 1. Bushing; 2. Current transformers; 3. Interrupter unit; 4. Operating mechanism cubicle; 5. Control cabinet

Dead Tank Circuit Breakers Main features:

• Toroidal-core current transformers on bushings (compact construction)
• High short-circuit breaking currents possible (up to 90 kA with one interrupter unit)
• Low center of gravity of the bases (higher seismic withstand capability)
• Gas-insulated components ensure highest availability with minimum maintenance effort
• Metal-enclosed interrupter unit (grounded housing)
• Available with porcelain or composite insulators
• Suitable for temperatures from -60 to 55°C with mixed gas solutions or various heating systems
• High seismic safety up to 0.5 g
• Suitable for altitudes of up to 1,000 meters

Advantages:

• Gas leakage rate of less than 0.1 % per year
• Inspection after 12 and maintenance after 25 years
• 10,000 switching operations are guaranteed
• Product life time of up to 50 years
• Easy installation and commissioning: only few assemblies
• Installation, commissioning, maintenance, training and technical advice from a single source
• Guaranteed availability of spare parts for all Siemens circuit breakers for a minimum of 25 years after delivery

Siemens Transmission Products – Leader in innovations with comprehensive, connective and sustainable portfolio

Transmission products play a vital role in the energy value chain. Siemens Transmission Products provides all key elements including power transformers and distribution transformers as well as gas-insulated and air-insulated switchgear and components. Products are offered individually, bundled or with related engineering upgrade to systems. Our products offer low life cycle costs with maximum availability, highest efficiency and short commissioning times.

We are driving technology innovations not only regarding the performance of transmission products but also in the area of sustainability and eco efficiency. By merging physics and data we enable new products and applications: Sensformer® and Sensgear®. With our global factory network and leading innovations we provide the highest level of quality and reliability to our customers: TSOs, DSOs, power producers, EPCs and industrial companies.