Siemens Power Engineering Guide Transmission and Distribution 4th Edition
*) Commencement of delivery planned for end of 1999 Protections With load monitoring, event and faultħSJ512 Digital overcurrent-time protection with additional functions Same features as 7SJ511, plus: s Autoreclose s Sensitive directional ground-fault protection for isolated, resonant or high-resistance grounded networks s Directional module when used as directional overcurrent relay (optional) s Selectable setting groups s Inrush stabilization Reverse interlockings With integral breaker failure Individually for phase and ground faultss Suitable for busbar protection with Indication (3 ph and E)s I.d.m.t and d.t.
SIEMENS GENERATOR PROTECTION RELAY SERIAL
core-balance CT) s Optical data interface as alternative to the wired RS485 version (located at the relay bottom) s Serial PC interface at the relay frontħSJ511 Universal overcurrent protections Phase-segregated measurement and and d.t.Ĭharacteristics can be set individually for phase and ground faults Selectable setting groups Integral autoreclose function (option) Thermal overload, unbalanced load and locked rotor protection Suitable for busbar protection with reverse interlocking With load monitoring, event and fault memoryĤ* only with 7SJ512 50 51 50N 51N 49 46 48 79 50 51 50N 51N BF 67 * 67N 79 * *ħSJ602* Universal overcurrent and overload protection Functions as 7SJ600, however additionally: s Fourth current input transformer for connection to an independent ground current source (e.g. Indication (Input 3 ph, IE calculated)s All instantaneous, i.d.m.t. 7SJ600 Universal overcurrent and overload protections Phase-segregated measurement and
SIEMENS GENERATOR PROTECTION RELAY SERIES
The series is briefly portrayed on the following pages. Relay portraitsSiemens manufactures a complete series of numerical relays for all kinds of protection application.
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