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Siemens Reyrolle 7SR46 Argus 4XL Relay – Feeder Protection
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Technical Specifications
Instantaneous Overcurrent – Phase (50)
Line Check / Switch-On-to-Fault (SOTF) (50)
Instantaneous Earth Fault – Derived (50N)
Time-Delayed Overcurrent – Phase (51)
Time-Delayed Earth Fault – Derived (51N)
Two Independent Settings Groups
Supervision Functions:
Inrush Current Detection (81HBL2) for transformer and network stability
Ancillary Functions:
High-Speed Trip via Binary Input (49T)
High-Speed Trip via External Trip Initiation (49T)
Lockout Function for Enhanced System Security (86)
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