Overcurrent and feeder protection

Overcurrent and feeder protection

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.

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