The SIPROTEC 7SK82 motor protection has been designed specifically for a cost-optimised and compact utilisation of small to medium-sized motors. With its flexibility and the high performance DIGSI 5 engineering tool, SIPROTEC 7SK82 offers future-oriented solutions for protection, control, automation, monitoring, and Power Quality – Basic. For motors in explosive environments, the SIPROTEC 7SK82 is also available with EN 60079-14 or VDE (Verband der Elektrotechnik, Elektronik und Informationstechnik) 0165, Part 1 (ATEX) certification.

At a glance

• Motor protection for small to medium-sized motors (100 kW to 2 MW)
• Inputs and outputs
  • 4 current transformers, 4 voltage transformers (optional), 11 or 23 binary inputs, 9 or 16 binary outputs
• Different hardware quantity structures for binary inputs and outputs available in the 1/3 base module
• Available with large or small display

Benefits

• Compact and low-cost motor protection
• Safety due to powerful protection functions
• User-friendly design for easy handling of devices and software
• Cybersecurity according to NERC CIP and BDEW Whitepaper requirements
• Highest availability even under extreme environmental conditions by standard coating of the modules
• Full compatibility between IEC 61850 Editions 1, 2.0 and 2.1

Applications

• Protection against thermal overload of the stator from overcurrent, cooling problems or pollution
• Protection against thermal overload 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 bearing temperatures with temperature measurement
• Detection of idling drives of pumps and compressors, for example
• Detection of ground faults in the motor
• Protection against motor short circuits
• Protection against instability due to undervoltage
• Detection and recording of power quality data in the medium voltage and subordinate low-voltage power system