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Siprotec 7SL82 line differential and distance protection automation relay

Siprotec 7SL82 line differential and distance protection automation relay
Siprotec 7SL82 line differential and distance protection automation relay
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Product Code : SIP21
Brand Name : SIEMENS
Price And Quantity
  • Minimum Order Quantity
  • 1 Piece Piece
Product Description

The combined line differential and distance protection relay SIPROTEC 7SL82 is part of the new SIPROTEC 5 series modular field devices. 

This device is especially designed for cost effective and compact medium voltage and sub-transmission application areas. 

With its flexibility and its high-performance DIGSI 5 engineering tool, the SIPROTEC 7SL82 fits perfectly for protection, control, monitoring, and measuring applica-tions in electrical energy systems.

Main function:Distance Protection for medium an sub-transmission


  • 3-pole, min. tripping time 19 ms

Inputs and outputs:

  • 4 current transformers, 4 voltage transformers (optional), 11 or 23 binary inputs, 9 or 16 binary outputs

Hardware flexibility:Various hardware quantity structures are available for binary inputs and outputs in the 1/3 base module, it is not possible to add 1/6 expansion modules, available with large and small display

Width of housing:1/3 x 19'inch'

All functions can be configured freely with DIGSI 5. For the application of some of the functions, you require the appropriate number of free function points within the device. The function point calculator in the online configurator provides support in determining the required number of function points for your device.

  • Minimal tripping time 19 MS
  • Main protection function is differential protection with adaptive algorithm for maximum sensitivity and stability even at different CT errors, CT saturation and capacitive charging currents
  • Directional backup protection and various additional functions
  • Recognition of static, intermittent and transient ground faults (transient function) in resonant-grounded and isolated networks
  • Detection of CT saturation
  • Arc protection
  • Power protection, configurable as active or reactive power protection
  • Undervoltage-controlled reactive power protection
  • Control, synchrocheck and system interlocking
  • Powerful automation with graphical CFC (Continuous Function Chart)
  • Support of single line in small and large displays
  • Integrated electrical Ethernet port J for DIGSI and com-plete IEC 61850 functionality (reporting and GOOSE)
  • Two optional pluggable communication modules, usable for different and redundant protocols (IEC 61850, IEC 60870-5-103, IEC 60870-5-104, Modbus TCP, DNP3 (serial and TCP)
  • Serial protection data communication via fiber-optic cable, two-wire connections and communication networks (IEEE C37.94 et al.) including automatic switch between ring and chain topology
  • High available Ethernet redundancy protocols PRP and HSR
  • Cyber Security acc. NERC CIP and BDEW Whitepaper
  • Phasor Measurement Unit (PMU) for synchrophasor-measured values and IEEE C37.118 protocol
  • Time synchronization using IEEE 1588
  • Powerful fault recording
  • Additional functions for simple tests and easy commis-sioning
Trade Information
  • Main Domestic Market
  • All India


Office No.-9, Plot 53/54, Sector-34, Space Heights, Near Tawa Hotel, Kamothe, Navi Mumbai - 410209, Maharashtra, India
Mr Piyush Lalchand Rathi (Partner)
Mobile :+919819614841, +919769207841
Mr. Dnyanesh Gawande (Partner)
Mobile :+919833686249