SIPROTEC 7SD87 differential protection device for selective protection and 1-and 3-pole tripping of overhead lines and cables with single-ended and multi-ended infeed of all lengths with up to 6 ends. Transformers and compensating coils in the protection range are also possible.
SIPROTEC 7SD87 differential protection device for selective protection and 1-and 3-pole tripping of overhead lines and cables with single-ended and multi-ended infeed of all lengths with up to 6 ends. Transformers and compensating coils in the protection range are also possible. With its modular structure, flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 7SD87 device offers future-oriented solutions for protection, control, automation, monitoring and PQ basic.
Main function:
Differential Protection
Interoperability of SIPROTEC 5 and SIPROTEC 4 line protection devices
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 transformers / 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 inches to 2/1 × 19 inches
| Brand | Siemens |
|---|
