Wide area multi-ended differential protection
Synaptec’s Refase™ system identifies faulted sections at low cost for operators.
Wide-area protection causes operators many problems, with existing solutions proving costly. Our Refase™ systems can quickly and easily identify faulted sections over long distances, and is completely passive, reducing operating costs.
Get in touch
Slava Tavoletti
Power Grids – Europe
Nitin Mahajan
Power Grids – India, GCC & SE Asia
Saul Matthews
Power Grids – Rest of World
Challenges in wide-area protection
The instrumentation and protection of new grid connections, for example to renewable generation or data centre projects, can be challenging to deliver economically.
Distance protection schemes, often favoured from the perspective of cost and simplicity, cannot determine the faulted branch and present issues relating to over- or under-reach. The more robust alternative, line differential protection, introduces its own challenges, including:
- A requirement for dedicated telecommunications infrastructure
- Accurate time synchronisation required at all remote points
- A lack of space in older, more remote substations in the area where renewables often connect
Our solution
Our Refase™ systems can instrument and reliably identify any number of faulted sections in these complex circuits over longer distances. This improves on the limitations of distance protection while avoiding the traditional capital cost of line differential protection.
By eliminating the need for new power supplies, copper wiring, dedicated telecommunications networks, or local GPS time sources, Refase™ radically reduces the capital cost of instrumentation for differential line protection in complex circuits with multiple branches.
Download our SSEN case study
Applications
Mixed circuit protection
OHL sag, ampacity and Dynamic Line Rating (DLR)
Wide area multi-ended differential protection
Digital substations
Cable condition monitoring
Wide area monitoring
Related posts
Photonic Current Transducer (PCT)
Synaptec’s PCT brings together the benefits of well-understood high-performance CTs with modern techniques for passive photonic sensing to deliver unprecedented reliability and flexibility in power system instrumentation.
Photonic Current and Voltage Transducer (PCVT)
Synaptec’s PCVT is the first entirely all-optical combined HV current and voltage sensor, bringing together modern passive photonic sensing techniques with well-understood, industry-standard primary converters to deliver unprecedented flexibility and safety.
Photonic Voltage Transducer (PVT)
Synaptec’s PVT brings together modern photonic sensing techniques with well-understood, industry-standard primary converters to deliver passive, alloptical HV voltage measurement with unprecedented flexibility and safety.
Sectors we support
Power grids
Renewables
