The main protection features:
* Over Current Protection
* Negative sequence overcurrent protection
* Zero-sequence overcurrent protection
* Over-voltage / low voltage protection
* Low frequency / over frequency protection
* Reclosing
* Professional logic voltage disconnection
Measurement:
* Current IA, IB, IC, IN, IG
* Voltage VA, VB, VC, VAB, VBC, VCA
* Power KW3P, KVAR3P
* Energy KWh3P, KVARh3P
* Power Factor Factor PF3P
* Sequence components 3I2, 3I0, 3V2, 3V0
* Frequency FREQ (Hz)
Monitoring functions:
* Recorded wave incident reports
* 1024 sequence of events
* Programmable load the document (LDP) record
Operation control:
* Device easy to operate front panel control buttons profile
Communication:
* Multi-communication port
* Support for multiple communication protocols

HOTPASH

SEL-751A Feeder Relay