Distance protection relay SIPROTEC 7SA82

currentpulsepower

SIPROTEC 7SA82 distance protection for cost-optimized and compact protection of lines in medium-voltage and high-voltage systems. Features & functions With its flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 7SA82 device offers future-oriented solutions for protection, control, automation, monitoring and PQ basic. Features Main function: •Distance protection for medium-voltage and high voltage applications •Interoperability of SIPROTEC 5 and SIPROTEC 4 line protection devices Tripping: •3-pole, minimum tripping time: 19 ms Inputs and outputs: •4 current transformers, •4 voltage transformers, •11 or 23 binary inputs, •9 or 16 binary outputs Hardware flexibility: •Different hardware quantity structures for binary inputs and outputs are available in the 1/3 base module. Adding 1/6 expansion modules is not possible; available with large or small display. Width of housing: •1/3 x 19 inches Functions DIGSI 5 permits all functions to be configured and combined as required. •Minimum tripping time: 19 ms •6 independent measuring loops (6-system distance protection) •Several distance-protection functions can be selected: Classic, reactance method (RMD), impedance protection for transformers •Directional backup protection and various 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, harmonic, dir. Detection of intermittent ground faults and admittance •Ground fault detection using the pulse detection method •Adaptive power-swing blocking •Detection of current-transformer saturation for fast tripping with high accuracy