SIEMENS OPTICAL CURRENT TRANSFORMERS

Trench optical current transformers do not contain electronic parts and do not use oil or SF6 as insulation media. Long-term sustainability and no environmental compromises – Trench optical current transformers are tested and available for worldwide applications.

Trench optical current transformers are based on Faraday effect principle. The output is a low power optical signal which is then transferred to a merging unit which adapts it to communication protocols such as IEC 61850-9-2.

The use of non-conventional instrument transformers in AIS switchgears enables customers to measure a wide range of grid signals which are not usually detected by conventional instrument transformers. Moreover, the communication protocols allow measuring, protection, control features and digitalized grid information.

Optical Current Transformers Product Design:

• Applicable for voltage level from 72 to 800 kV
• No environmental compromises and never subjected to gas taxation
• Galvanic separation between primary and secondary side
• Single fiber-optic cable instead of several copper cables with large cross-sections

Internal insulation is made by clean air, thus:

F-gas free insulation with lowest requirements on training, transport, installation, operation, reporting and recycling

C-gas free with no risk of C-decomposition No gas recycling required

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.