over-current protection relay / digital / programmable / configurable
7SJ81/82/85/86 series

Add to MyDirectIndustry favorites
Compare this product Don’t compare this product
over-current protection relay over-current protection relay - 7SJ81/82/85/86 series
{{requestButtons}}

Characteristics

  • Measured/monitored value:

    over-current

  • Other characteristics:

    digital, programmable, configurable, compact, high-voltage, for feeder, panel-mount, plug-in

Description

SIPROTEC 7SJ81, SIPROTEC 7SJ82, SIPROTEC 7SJ85 and SIPROTEC 7SJ86
The SIPROTEC 7SJ82/7SJ85 overcurrent protection has been designed specifically for protection of feeders and lines in medium-voltage and high-voltage systems. The SIPROTEC 7SJ86 overcurrent protection has specifically been designed as backup or emergency protection for the line protection devices. With its flexibility and the high-performance DIGSI 5 engineering tool, the SIPROTEC 5 devices offer future-oriented system solutions with high investment security and low operating costs.

Features
Main function:
•Feeder and overcurrent protection
Inputs and outputs:
•4 current transformers, 11 binary inputs, 9 binary outputs
•4 current transformers, 18 binary inputs, 14 binary outputs
•4 current transformers, 4 voltage transformers, 11 binary inputs, 9 binary outputs
•4 current transformers, 4 voltage transformers, 16 binary inputs, 11 binary outputs
Hardware flexibility:
•Different hardware quantity structures for binary inputs and outputs are available in the 1/3 base module. 1 plug-in module position, available with large or small display
Housing width:
•1/3 × 19 inches

Functions
DIGSI 5 permits all functions to be configured and combined as required.
•Directional and non-directional overcurrent protection with additional functions
•Detection of ground faults of any type in compensated or isolated electrical power systems using the following functions: 3I0>, V0>, fleeting contact, cos φ, sin φ, dir. detection of intermittent ground faults and admittance
•Arc protection (note the resulting communication restrictions)
•Overvoltage and undervoltage protection