Siemens Reyrolle 7SR220 Overcurrent relay

Siemens Reyrolle 7SR220 Overcurrent Relay – 

The Siemens Reyrolle 7SR220 Overcurrent Relay is a highly reliable directional protection relay designed to provide advanced overcurrent and feeder protection. Equipped with 5xI and 4xV inputs, this numerical relay ensures accurate performance in demanding electrical networks.

Available through trusted dealers and suppliers in Mumbai, the Reyrolle 7SR220 Overcurrent Relay is widely used by utilities, industries, and EPC contractors for safeguarding power systems. Its advanced features make it suitable for directional overcurrent, earth fault, and feeder protection applications, ensuring system stability and reduced downtime.

Function

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 of Overcurrent & Earth Fault (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)c
• VT Supervision (60VTS)
• Inrush Detector (81HBL2)
• Circuit Breaker Fail (50BF)
  

Control Functions

• Auto Reclose (79)
  

Monitoring Functions

• Primary/Secondary Current Phases and Earth Direction
• Primary/Secondary Line and Phase Voltages
• Apparent Power and Power Factor
• Real and Reactive Power
• W Hr & VAr Hr Forward and Reverse
• Historical Demand Record
• Positive Phase Sequence (PPS) Voltage & Current
• Negative Phase Sequence (NPS) Voltage & Current
• Zero Phase Sequence (ZPS) Voltage

Whether you are an engineer seeking technical precision, a procurement team looking for the best price, or a local buyer in Mumbai searching for reliable Siemens relays, the 7SR220 Argus delivers on all fronts. Customers benefit from competitive pricing, fast delivery, and full technical support from authorized Siemens Reyrolle distributors in Mumbai.

Choose the Reyrolle 7SR220 Overcurrent Relay Argus Directional Protection for a perfect balance of performance, protection, and local availability.