Model: Reyrolle 7SR157 Argus – 2xV
Type: Numerical Check and Synchronising Relay
Protection: Overcurrent and Earth Fault
Case: 4U high, Size E4
Power Supply: Universal (AC/DC)
Communication: Front USB port and Rear RS485 port (MODBUS RTU / IEC 60870-5-103)
Functions: Integrated input/output logic, data logging, and fault reporting
Application: Distribution networks, industrial power systems, and substations
Monitoring Functions:
Undervoltage Detector (25) • Differential-Voltage Detector (25) • Voltage Level (Live/Dead) (25) • Close-Circuit Supervision (74) • VT Fail (60)
Control Functions:
Voltage Trim (Magnitude & Phase) (25) • System-Split Detector (25) • Check Synchronising (25) • Check Synchronising Close Guard (25) • System Synchronising (25) • Close on Zero Synchronising (25) • System-Split Lockout (25) • Synchronising Bypass (25)
Features:
Prevents circuit breaker closing if voltage, phase, or frequency exceed limits
Provides accurate synchronization and stable performance
Integrated data logging and fault monitoring
Local and remote communication via USB & RS485
Supplied and supported locally in Mumbai with fast delivery and technical assistance
