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Substation AIS
The technology of our air-insulated substation products (AIS) sets international trends. We continuously ensure high quality through optimized production processes, constant product development towards grid connectivity, and grid decarbonization, as well as a certified quality management system.
Power transformer for AIS
Power transformers in air-insulated switchgear (AIS) substations perform voltage conversion in separate outdoor structures. They are essential for ensuring reliable and safe power distribution while contributing to the efficiency of the electrical infrastructure.
Blue portfolio
Siemens Energy Blue portfolio offers circuit breakers, gas-insulated switchgear, and busducts using vacuum switching technology and clean air for insulation. This ensures zero harmful emissions, high performance, and economic efficiency. Backed by a decade of expertise and strong partnerships, our Blue Portfolio provides outstanding levels of technical performance and low lifecycle costs while reducing our ecological footprint to an enormous extent.
Circuit breaker
Our cutting-edge circuit breakers propel the energy transition, offering Blue, gas-free solutions for sustainable grids up to 140 kV. For higher voltages up to 1100 kV, we offer reliable live tank and dead tank circuit breakers, as well as hybrid solutions. The latter combines different functions in a compact design, such as our Dead Tank Compact (DTC) and our Disconnecting Circuit Breaker (DCB).
Disconnectors and earthing switches
Our high-voltage disconnectors and earthing switches offer a range from 36 kV to 800 kV, with a rated current up to 5000 A. Designed to handle short-circuit currents and suitable for extreme conditions, they boast a maintenance-free contact system.
Type-tested and quality-certified, our products promise an excellent price-performance ratio with lifetime support, simplifying installation and ensuring durability even in seismic areas.
Surge arresters
We design and manufacture medium and high-voltage surge arresters for diverse applications ensuring longevity, reliability, and safeguarding valuable equipment like transformers, circuit breakers, and traction vehicles.
Solutions for overhead lines
Siemens Energy is one of the only suppliers that can offer insulators and arresters. To guard against ground faults and short circuits due to overvoltage, we deliver comprehensive solutions for our overhead lines, integrating insulators, and arresters, with advanced composite long rod insulators up to 800 kV.