SIEMENS three-phase protection relays

... transformer differential protection have been designed specifically for the protection of two and multi-winding (up to 5 sides). transformers. They are the main protection for the transformer ...

The SIPROTEC 7SS85 busbar protection is a selective, safe and fast protection against busbar short circuits in medium, high, and very high voltage systems. The proven, fast and safe algorithms from ...

The Reyrolle 7SR511 overcurrent device includes a wide range of protection functions and IEC 61850 Ethernet communications as standard. Features & functions The large LCD, tactile pushbuttons and ...

... earth)-fault protection for single and three-phase tripping (50N, 51N, 67N) •Tele (pilot) protection (85) •Fault locator (FL) •Power swing detection / tripping (68/68T) •Phase-overcurrent ...

... possible. Apart from the main protection function, i.e. the differential protection, the SIPROTEC 7SD610 has a full range of configurable emergency and / or back-up protection functions ...

... differential function a backup overcurrent protection for 1 winding / star point is integrated in the relay. Optionally, a low or high-impedance restricted earth-fault protection, ...

Tripping current: 1 A - 5 A
Trigger voltage: 19 V - 275 V

Our differential protection relay, Reyrolle7SR18, is a numeric three phase differential protection relay used to detect in zone phase ...