Universal protection devices cover a wide range of applications and offer many advantages in terms of investment and operation. For universal protection devices, the equation is common hardware + user specific functions. Choose the right device hardware and complement it with functions according to your needs.

The SIPROTEC 7SX800 is a "SIPROTEC 5 Compact" device for medium-voltage applications.

At a glance

• Compact and cost-effective universal protection relay for a wide range of applications
• Slim design with a high number of IOs
• Virtual testing with SIPROTEC DigitalTwin
• IoT connectivity for easy access to your device data and associated fast response times
• Proven engineering tool DIGSI 5

Benefits

• Safety due to powerful (and tried-and-tested) protection functions
• User-friendly design for easy handling of devices and software due to graphical colour display (including single-line representation) and intuitive Web UI
• Cybersecurity according to NERC CIP and BDEW Whitepaper requirements (such as logging security-related events and alarms)
• Full compatibility between IEC 61850 Editions 1, 2.0 and 2.1

Applications

• Detection and selective 3-pole tripping of short circuits in electrical equipment of star networks, lines with infeed at one or two ends, parallel lines and open-circuited or closed ring systems of all voltage levels
• Detection of ground faults in isolated or arc-suppression-coilground power systems in star, ring, or meshed arrangement
• Backup protection for differential protection devices of all kinds for lines, transformers, generators, motors, and busbars
• Protection and interfacing of regenerative infeeds
• Protection and monitoring of double-star point capacitor banks
• Protection against thermal overload of the stator from overcurrent, cooling problems, or pollution and of the rotor during startup due to frequent startups, excessively long startups, or blocked rotor
• Monitoring for voltage unbalance or phase outage
• Monitoring the thermal state and the storage temperatures with temperature measurement
• Detection of idling drives of pumps and compressors, for example
• Detection of ground faults and short circuits in the motor
• Protection against instability due to undervoltage
• Detection and recording of power-quality data in the medium voltage and subordinate low-voltage power system
• Load-shedding applications