Distance Protection Relay Block 7SA510

Features and technical specifications:

1. Adaptive measurement algorithms
2. Dynamically unlimited directional sensitivity
3. Non-volatile storage of events
4. CT inputs : 4 No’s
5. VT inputs : 3 No’s
6. Binary inputs : 4 No
7. Binary output’s : 7 NO
8. Front interface for connecting to a PC
9. System interface for connecting to a control system via IEC 60870-5-103 protocol

The following functions are available

1. Self-supervision of the relay
2. Measured value supervision
3. Event logging
4. Fault logging
5. Oscillographic fault recording
6. Circuit-breaker operation statistics
7. Distance protection for all types of faults
8. Fault locator
9. Earth-fault detection in isolated/ resonant-earthed networks
10. Sensitive earth-fault protection for high-resistance faults in earthed networks
11. Backup overcurrent-time protection
12. Auto-reclosure
13. Universal teleprotection interface
14. Overload protection
15. Power swing blocking/tripping
16. Switch-onto-fault protection

This Distance Protection Relay Block is easily insert in your schematic diagram and connect as you like way.

The network can be radial, ring or meshed. The system star point may be isolated, resonance-earthed (e.g. Peterson coil), solidly earthed or low-resistance earthed. The relay incorporates all functions normalIy required for line protection and can also be applied as a time-graded backup protection for all types of differential protection schemes. The 7SA510 can be incorporated in both conventional switchgear systems and SICAM substation control and protection systems. The serial system interface protocol used conforms to IEC 60870-5-103 and can also be connected to the fault monitoring computer DAKON or a star coupler/modem central or remote operation system.