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Protection features
Detect current-transformer saturation for fast tripping with high accuracy. Use the Fault Locator Plus for accurate fault location with inhomogenous line sections and targeted automatic overhead line section reclosing (AREC).
Why SIPROTEC 7SA87?
SIPROTEC 7SA87 is a modular distance protection device for high-voltage lines. It provides essential protection for electrical equipment by detecting and isolating faults with 1-pole or 3-pole tripping capabilities.
Electrical systems face challenges from short circuits and ground faults, leading to potential damage and downtime. SIPROTEC 7SA87 detects and selectively trips short circuits and ground faults across various network configurations to maintain system stability. Expect fast fault isolation with a minimum tripping time of 9 ms to minimize damage.
Secure your operations with cybersecurity features compliant with NERC CIP and BDEW Whitepaper requirements.
Key benefits
Enhance safety
Protect electrical equipment for selective 1- and 3-pole short circuit trips. Detect ground faults in power systems to safeguard personnel and assets and minimize downtime.
Operate easily
Handle devices and software confidently with a user-friendly design. Access information and diagnostic data quickly and securely via a web browser.
Achieve high availability
Maintain high availability in extreme conditions with conformal coating. Enable continuous operation and data integrity with strong redundancy protocols.
Featured capabilities
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DIGSI 5 engineering tool
Use DIGSI 5 to configure and combine protection, control, automation, monitoring and PQ functions. Adjust I/O flexibly in the SIPROTEC 5 modular system. Create automation functions with the graphical logic editor.
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Communication protocols
Integrate up to four pluggable communication modules for diverse, redundant protocols. Transmit data reliably via PRP and HSR.