SIEMENS voltage protection relays

... and reactor protection schemes. Relays are housed in size E8 or E10 cases. Integrated logic is provided to allow the optimal configuration of relay functionality with the relays ...

... differential protection have been designed particularly for the selective protection of overhead lines and cables with single-ended and multi-ended infeed in medium-voltage and high-voltage ...

... high investment security and low operating costs. Features Main function: •Differential protection and distance protection for medium-voltage and high voltage ...

SIPROTEC 7SS85 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, ...

Trigger voltage: 18 V - 300 V

... and 7SR105 motor protection devices are specifically designed to protect motors during all starting and running sequences. Features The device is housed in a 4U high, size 4 non-withdrawable case and these relays ...

Trigger voltage: 19 V

... arrangements - 3 pole overcurrent + 1 pole unbalance - 1 pole overcurrent + 3 pole unbalance •Optional voltage inputs •Re-energisation blocking to prevent CB closing until the bank ...

Trigger voltage: 64 V - 300 V

The Reyrolle 7SR158 Argus voltage and frequency relays are numerical, multifunctional devices, with functionality designed for connection to voltage transformers. The voltage ...

... for meshed grids and busbar protection by means of reverse interlocking. Features Fast and selective tripping is guaranteed even if the communication fails between the relays. The scope of functions ...

... time-overcurrent protection (phase/ground) (50, 50N, 51, 51N) •Directional time-overcurrent protection, ground (67N) •Directional overcurrent protection, ground (defi-nite/inverse)(67Ns, ...

... multi-function relay for connection to voltage transformers. It can be used in distribution systems, on transformers and for electrical machines. Features If the SIPROTEC Compact 7RW80 detects any ...