Introduction of Siemens 7SR120
Siemens 7SR120 Directional Overcurrent Safety Relay functionality enables highly flexible configurations for current plus time grading which makes it compatible with just about all forms of overcurrent defenses. The electrical relays are available within individual and 4-rod variants housed within E4 instances with the IEC61850 protocol option located in an E6 case. Built-in reasoning is supplied in order to allow the optimal construction of exchange features with the particular electrical relays analog advices and binary input/output circuits. Protection, instrumentation plus metering efficiency is available via information comms channel(s). The front side USB interface regarding local PC link or back electric RS485 interface with regard to remote link is supplied. The exchange functionality allows extremely versatile settings regarding present and period grading so that it is compatible with all types of overcurrent security.
Protection Features of Siemens 7SR120 Directional Overcurrent Relay
- Undercurrent (37)
- Damaged Conductor (46BC)
- Negative Phase Sequence Overcurrent (46NPS)
- Thermal Overburden (49)
- Overcurrent (50, 51)
- High Impedance REF (64H)
- Directional Control of Overcurrent plus World Fault (67)
- Under/Over Voltage (27/59)
- Unfavorable Phase Sequence Voltage (47)
- Volts Controlled Overcurrent (51V)
- Natural Volt quality Shift (59N)
Supervision Features of Siemens 7SR120 Relay
- COMPUTERTOMOGRAFIE Guidance (60CTS)
- Journey plus Close up Routine Guidance (74T/CCS)
- VT Guidance (60VTS)
- Inrush Metal detector (81HBL2)
- Circuit Breaker Fail (50BF)
Siemens 7SR120 Directional Overcurrent Relay also supplies absolutely no phase series (ZPS) Volts and real and reactive strength. The comprehensive range of Reyrolle products provides the total protection requirements of distribution markets and industrial applications – ranging from overcurrent protection via transformer protection and voltage control to a full spectrum of auxiliary and trip relays. The portfolio includes many famous products. For more details please click here.
