CLEAN AIR CURRENT TRANSFORMER
Trust in our tailor-made solutions for your unique needs
Trust in our tailor-made solutions for your unique needs
OPTICAL CURRENT TRANSFORMER
800 kV / 4000 A
Trench Optical Current Transformers are a revolutionary alternative to conventional current transformers, providing an advanced solution for measurement and protection applications, based on cutting-edge optical sensing technology.
CHARACTERISTICS
- No ambient temperature limitation
- Filled with nitrogen compressed slightly above ambient pressure – to avoid ingress of moisture or other objects
GENERALS
- Aluminum housing with glass ring sensors
- Insulators made of composite materials that can withstand mechanical stresses, including tensile, short-circuit, and seismic forces
- A connection box for attaching a TOCT to the station’s fiber optic cables
- A signal processing unit, merging unit, containing a light source, photodetectors, and signal processing. It comes with up to three individual channels for measurement
APPLICATION AREAS
Suitable for low-temperature applications at -50 °C and below, In IEC 61850-9-2 compliant digital substations, thanks to digital “process bus” interface with long-distance fiber optic cable, which offers maximum flexibility for applications
SUSTAINABILITY
Regenera™ is our holistic approach to protecting ecosystems, fostering environmental harmony and promoting a circular economy.
MAIN FEATURES
Trust in our tailor-made solutions for your unique needs
Wide application range
Optical current sensor enables use of only one type of TOCT for a wide range of protection and measurement applications.
More compact CT Design
Small and light-weight units compared to conventional CT design.
Improved operational safety
Galvanic separation between primary and secondary side.
GWP of Zero for insulation gas
Zero CO2 equivalent compared to 24.300 kg CO2 equivalents by using conventional gas.
Reduced cabling effort
Single fiber-optic cable instead of several copper cables with large cross-sections.
Passive system
No electronic components needed within the TOCT.
Merging unit 6Mu85 + IO245
Together with 6MU85, the IO245 forms the merging unit which provides an IEC 61850-9-2 interface with redundant digital connections to station bus, IEC 61850-8-1, and process bus, IEC 61850-9-2.
Complete TOCT set for a 3-phase installation
Contains three TOCTs, primary equipment, one 6MU85, base merging unit, one IO245, providing the interface to the TOCTs.
PRODUCT APPLICATIONS
Inside the Trench
CLEAN AIR CURRENT TRANSFORMER
Main components of
of the Optical Transformer
As a pioneer of innovation in the field of digital technologies in high-voltage switchgears, the powerful and durable Trench Optical Current Transformers do not require any harmful insulating medium.
RELATED PRODUCTS
See the complete Instrument Transformers Portfolio
We provide the most advanced products, services, solutions.
