Easun reyrolle is an acknowledged leader in the field of electrical power management. Easun reyrolle manufactures and exports transformer protection--duobias m.
Features
1. trip circuit supervision [95]
2. fault recorder
3. disturbance recorder and sequential events recorder
4. neutral voltage displacement protection
5. thermal overload protection [49]
6. comprehensive metering functions
7. fibre-optic and rs232 communication port
8. communications protocol compatible with iec 60870-5-103 or modbus rtu
9. irig-b time synchronization
10. two-winding and three-winding power
Transformer, triple slope biased-differential protection [87]
11. second harmonic magnetising current inrush restraint
12. differential highset protection [87]
13. idmtl/dtl phase and ground overcurrent protection for hv and lv windings [50/51p, 50/51n]
14. over and under voltage protection [27/59]
15. under frequency protection [81]
16. integral restricted earth fault protection for each winding [64r]
17. upto 29 contact outputs and upto 27 opto-isolated inputs
18. circuit breaker failure protection [50bf]
19. integrated current amplitude and vector group compensation which removes the needs for interposing cts
20. upto 32 status and trip leds
21. lcd display [26-characters, 2 lines]
