Siemens SIPROTEC 5 distance protection relays protect overhead lines and cables at all voltage levels. They detect and clear line faults selectively and quickly, and keep the healthy parts of the network in service.
SIPROTEC 5 models
- 7SA82 – compact, non-modular device for distribution and sub-transmission lines
- 7SA86 – modular device for transmission lines, with expandable I/O
- 7SA87 – modular device for single- and three-pole tripping on transmission networks
Key functions
- Distance protection (21/21N) with flexible zone characteristics
- Directional earth-fault protection (67N)
- Auto-reclosing (79) and synchrocheck (25)
- Circuit-breaker failure protection (50BF)
- Fault locator, fault recording and IEC 61850 communication
Typical applications
Overhead lines and underground cables in utility transmission and distribution networks, industrial plant feeders and oil & gas facility tie-lines.
Why buy through Cynomatic
- Local Calgary support for selection, configuration (DIGSI 5) and ordering
- Help matching the right I/O, CT/VT and communication options to your project specification
- Supply for utilities, oil & gas, water and industrial projects across Western Canada
Need a quote or help choosing a configuration? Contact our team or email info@cynomatic.com. See the full SIPROTEC 5 protection relay range.