Siemens SIPROTEC 5 7SA82 Distance Protection Relay
The SIPROTEC 7SA82 Distance Protection Relay is a high-performance relay from the SIPROTEC 5 series, designed for precise feeder and line protection in industrial and utility power systems. Featuring 4xI and 4xV inputs and 3-pole tripping, it ensures reliable and accurate fault detection, minimizing downtime and enhancing system safety.
Available from authorized suppliers in Mumbai, this relay is ideal for power utilities, industrial installations, and critical infrastructure applications. Combining technical excellence with practical reliability, the SIPROTEC 7SA82 Distance Protection Relay offers fast response, robust operation, and seamless integration into your protection system.
Main function
- Distance protection for medium-voltage and high-voltage applications
- Interoperability of SIPROTEC 5 and SIPROTEC 4 line protection devices
Tripping
- 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 × 19 inches
As standard:
- Conformal Coating
Function
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
Whether you’re upgrading your existing network or specifying new installations, this relay provides trusted performance with quick delivery in Mumbai, ensuring your power system stays protected and operational.






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