Reyrolle 7SR110
The Reyrolle 7SR11 series of relays provide overcurrent and earth fault protection and are typically applied to provide main protection on feeders and interconnectors, and backup protection on items in the plant (e.g. transformers).
Overcurrent and earth fault protection devices are often the only protection installed in distribution system circuits.
The functionality of these relays allow highly flexible settings for current and time grading, making it compatible with all types of overcurrent protection.
Enquiry about Reyrolle 7SR110
Basic Features
- Available in single and four pole variants housed in E4 cases with IEC 61850 protocol option housed in an E6 case
- Provides integrated logic to allow optimal configuration of relay functionality with relays analogue inputs and binary input/output circuits
- Data communication channels allow access to protection, instrumentation, and metering functionalities
- Provides local PC connection via a front USB port and remote connection via a rear electrical RS485 port
- 2 levels of password protection
- Circuit breaker trip counter and timer
- Fault, event, and waveform records
- Protection from undercurrent (37)
- Protection from broken conductor (46BC)
- Protection from thermal overload (49)
- Protection from overcurrent (50, 51)
- Protection from earth fault (50G, 50N, 50SEF, 51G, 51N, 51SEF)
- Trip & close circuit supervision (74T/CCS)
- Inrush detector (81HBL2)
- Circuit breaker fail (50BF)
- Auto reclose (79)
- Historical demand record