Model: 7SR158 Argus – 3xV
Type: Voltage & Frequency Protection Relay
Protection Functions:
• Under/Over Voltage
• Under/Over Frequency
• Rate of Change of Frequency
• Negative Phase Sequence Voltage
• Neutral Voltage Displacement
• Voltage Vector Shift
Supervision Functions:
• Trip & Close Circuit Supervision
• Lockout
Monitoring Functions:
• Line & Phase Voltage (Primary/Secondary)
• Historical Demand Record
• PPS, NPS & ZPS Voltage Monitoring
Additional Functions:
• Four Setting Groups
• Two-Level Password Protection
• Self-Monitoring
• Breaker Trip & Maintenance Counters
• Event, Fault & Waveform Records
• User Logic & Virtual I/Os
• USB Front Port & RS485 Rear Port (MODBUS RTU / IEC 60870-5-103)
Availability in Mumbai:
Genuine Siemens relays • Competitive pricing • Bulk order options • Fast delivery • Local technical support and after-sales service
Non-directional overcurrent protection with 4xI inputs
Industrial-grade reliability for feeder circuits
Protection Functions: Undercurrent (37), Broken Conductor (46BC), Negative Phase Sequence Overcurrent (46NPS), Thermal Overload (49), Overcurrent (50,51), Earth Fault (50G,50N,50SEF,51G,51N,51SEF), Directional Control (67), High Impedance REF (64H), Under/Over Voltage (27/59), Negative Phase Sequence Voltage (47), Voltage Controlled Overcurrent (51V), Neutral Voltage Displacement (59N), Under/Over Frequency (81)
Supervision Functions: CT Supervision (60CTS), Trip & Close Circuit Supervision (74T/CCS), VT Supervision (60VTS), Inrush Detector (81HBL2), Circuit Breaker Fail (50BF)
Control Functions: Auto Reclose (79)
Monitoring Functions: Primary/Secondary Currents and Earth, Line and Phase Voltages, Apparent Power & Power Factor, Real & Reactive Power, Wh & VArh Forward/Reverse, Historical Demand Records, PPS/NPS/ZPS Voltages & Currents
Authorized Siemens product with competitive pricing, local stock, and technical support in Mumbai
