SIEMENS LIVE TANK CIRCUIT BREAKERS-AIR INSULATED SWITCHGEAR

We offer our live tank circuit breakers for applications from 72.5 kV to 800 kV, up to 80 kA. Depending on the requirement, you can choose from live tank circuit breakers with three-pole (one drive for three poles) or single-pole (three drives for three poles) operation, as well as from porcelain or composite insulators. Our live tank circuit breakers are suitable for all different types of applications, from use in extreme temperatures to earthquake regions. In these circuit breakers, the interrupter unit is not grounded during operation – it is exposed to high voltage.

Siemens Live Tank Circuit Breakers Main features:

• For applications from 72.5 kV to 800 kV, up to 80 kA
• Spring drive mechanism (3AP) or electrohydraulic operating mechanism (3AT)
• Self-compression principle (≤ 245 kV) or dynamic self-compression principle (≥ 245 kV)
• Available with single- (FI, FE) or three-pole operation
• Suitable for temperatures from -60 up to +55°C
• Available with porcelain or composite insulators
• Seismic withstand capability up to 0.3 g or 0.5 g
• Gas leakage rate of less than 0.1 % per year
• Type tested according to the latest international standards

Advantages:

• Easy installation and commissioning: only few subassemblies
• Inspection after 12 and maintenance after 25 years
• 10,000 switching operations are guaranteed
• Service life of up to 50 years
• Over 107,000 circuit breakers delivered worldwide prove our best practices and years of experience
• Minimal transportation costs
• 24-hour service hotline
• Our global production network saves customers time and transportation costs

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.