Multifunction protection SIPROTEC 7SJ66 скачать в хорошем качестве

Multifunction protection SIPROTEC 7SJ66

SIPROTEC 7SJ66 is a numerical protection, control and monitoring device. SIPROTEC 7SJ66 is features flexible protection functions. Up to 20 protection functions can be added according to individual requirements. Thus, for example, a rate-of-frequency-change protection or reverse power protection can be implemented. The relay provides control of the circuit-breaker, further switching devices and automation functions. The integrated graphical logic editor (CFC) allows the user to implement its own functions, e. g. for the automation of switchgear (interlocking). The communication interfaces support the easy integration into modern communication networks Line and feeder protection: Protection of high and medium voltage networks with earthed (grounded), low-resistance grounded, isolated or compensated neutral point Motor Protection: Suitable for asynchronous machines of all sizes Backup Protection: The relay performs all functions of backup protection supplementary to transformer differential protection Functions Protection functions Overcurrent protection Directional overcurrent protection Sensitive directional ground-fault detection Displacement voltage Intermittent ground-fault protection Directional intermittent ground fault protect High-impedance restricted ground fault Inrush restraint Motor protection Overload protection Temperature monitoring Under-/overvoltage protection Under-/overfrequency protection Rate-of-frequency-change protection Power protection (e.g. reverse, factor) Undervoltage controlled reactive power protection Breaker failure protection Negative-sequence protection Phase-sequence monitoring Synchro-check Fault locator Lockout Auto-reclosure Admittance ground-fault protection Control functions/programmable logic Commands for control of CB and of isolators Graphical visualization of switch positions Control via keyboard, binary inputs, DIGSI 4 or SCADA system User-defined logic with CFC (e.g. interlocking) Monitoring functions Operational measured values V, I, f Energy metering values Wp,Wq Circuit-breaker wear monitoring Slave pointer Trip circuit supervision Fuse failure monitor 8 oscillographic fault records with a sampling rate of 1.6 kHz Motor statistics Security log