SIPROTEC 7SL87 Line Differential and Distance Protection

The combined SIPROTEC 7SL87 line differential and dis-tance protection has specifically been designed for the protection of lines. With its modular structure, flexibility and the powerful DIGSI 5 engineering tool, SIPROTEC 7SL87 device offers future-oriented system solutions with high investment security and low operating costs.

Main function: Differential and Distance Protection Tripping: 1-pole and 3-pole, minimum tripping time: 9 ms Inputs and outputs: 12 predefined standard variants with 4/4 or 8/8 current/voltage transformers, 5 to 31 binary inputs, 8 to 46 binary outputs Hardware flexibility: Flexibly adjustable I/O quantity structure within the scope of the SIPROTEC 5 modular System Housing width: 1/3 × 19 inch to 2/1 × 19 Inch