How Siemens 7SR110 Nondirectional Overcurrent Protection Relay | Reyrolle Can Help Your Power System

Siemens 7SR110 Nondirectional Overcurrent Protection Relay functionality authorises highly flexible settings for current & time grading making them suitable for all types of overcurrent protections. The relays are now available in single pole as well as four pole variants housed in an E4 case with for IEC 61850 protocol option in an E6 case. Integrated logic provided with the device allows the optimal configuration of relay functionality with its analogue inputs as well as binary input & output circuits. The protection, instrumentation and metering function of these relays are accessible via data comms channel(s). A front USB port is provided for local PC connection & a rear electrical RS485 port is provided for remote connection.

• Cold load settings
• Four settings groups
• Password protection – 2 levels
• User programmable logic
• Self-monitoring
• Circuit breaker trip counter and timer
• Fault, event and waveform records

Siemens 7SR110 Relay Protection Functions

• Undercurrent (37)
• Broken Conductor (46BC)
• Negative Phase Sequence Overcurrent (46NPS)
• Thermal Overload (49)
• Overcurrent (50, 51)
• Earth Fault (50G, 50N,51G, 51N, 50SEF, 51SEF)
• Directional Control of Overcurrents & Earth Faults (67)
• High Impedance REF (64H)
• Under/Over Voltage (27/59)
• Negative Phase Sequence Voltage (47)
• Voltage Controlled Overcurrent (51V)
• Neutral Voltage Displacement (59N)

Siemens 7SR110 Supervision Functions

• CT Supervision (60CTS)
• Trip & Close Circuit Supervision (74T/CCS)
• VT Supervision (60VTS)
• Inrush Detector (81HBL2)
• Circuit Breaker Fail (50BF)

Reyrolle 7SR110 Control Functions

• Auto Reclose (79)

Reyrolle 7SR110 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 & Reverse
• Historical Demand Record
• Positive Phase Sequence (PPS) Voltage & Current
• Negative Phase Sequence (NPS) Voltage & Current
• Zero Phase Sequence (ZPS) Voltage

Siemens is one of the most trusted and oldest leading MNCs in India thanks to its quality products for diverse power systems. To get the best deal on Siemens 7SR110 contact us as Reliserv Solution is the authorized Supplier and also Channel Partner of SIEMENS Make Numerical Relays, Automation Products, Power Quality Meters & Instruments, MV Switchgear Spares, PSS SINCAL Software. We Reliserv Solution are the leading Reyrolle products supplier and exporter in Mumbai, Maharashtra. We also provide a wide range of services & customized solutions for Industries & Panel Builders. Contact us at +917506112097 or mail us your requirements at [email protected]. We deal in a wide range of products in Siemens, to learn more about our Siemens Reyrolle Numerical Relay collection click here.