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Siemens Reyrolle 7SR158 Voltage & Frequency Protection Relay
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Technical Specifications
Model: 7SR158 Argus – 3xV
Protection Functions:
• Under/Over Voltage (27/59)
• Under/Over Frequency (81)
• Rate of Change of Frequency (81R)
• Negative Phase Sequence Voltage
• Neutral Voltage Displacement
• Voltage Vector Shift (78)
Supervision Functions:
• Trip and Close Circuit Supervision
• Lockout
Monitoring Functions:
• Primary/Secondary Line & Phase Voltages
• Historical Demand Record
• PPS, NPS & ZPS Voltage
Additional Features:
• Four Setting Groups
• Two-Level Password Protection
• Self-Monitoring
• Fault, Event & Waveform Records
• Programmable Logic & Virtual I/O
• Front USB & Rear RS485 Communication (MODBUS RTU / IEC 60870-5-103 / DNP 3.0)
• Size: E4 case (3 voltage inputs, 6 binary inputs, 8 binary outputs)
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