The SIPROTEC 7SD87 is a differential protection device for selective protection and 1- or 3-pole tripping of overhead lines and cables. It supports various infeed configurations and protects transformers and compensating coils.
Protect power systems from overhead line and cable faults. Our device provides selective protection and rapid tripping, quickly isolating faults to maintain system stability and minimize downtime. An adaptive algorithm maintains sensitivity and stability, even with varying transformer errors or current-transformer saturation. Isolate faults quickly with a 9 ms minimum tripping time. Adapt the modular SIPROTEC 5 system to your specific needs through flexible I/O structures. Enhance operational security with integrated cybersecurity and provide high availability in harsh environments with conformal coating.
Achieve high safety with powerful protection functions for selective tripping of lines and cables. Provides robust operation even in extreme environmental conditions with conformal coating on electronic boards.
Configure all functions as required with the powerful DIGSI 5 engineering tool. Benefit from a user-friendly design for purposeful and easy handling of devices and software, simplifying your operational tasks.
Implement extensive cybersecurity functionality and meet NERC CIP and BDEW Whitepaper requirements, providing future-oriented solutions for your protection needs.
Utilize differential protection with an adaptive algorithm for robust sensitivity and stability. Operate reliably despite diverse transformer errors, current-transformer saturation and capacitive charging currents.
Adjust the I/O quantity structure flexibly within the SIPROTEC 5 modular system. Choose from 12 predefined standard variants with various current/voltage transformers, binary inputs and outputs for tailored solutions.
Integrate electrical Ethernet RJ45 for DIGSI 5 and IEC 61850. Utilize up to 4 pluggable communication modules for different and redundant protocols, including PRP and HSR redundancy, for robust data transmission.