1MDU07205-YN rev. F
REF601 CEI
User’s manual
11
Section 2 REF601 CEI overview
2.1 Overview
REF601 CEI overview
REF601 is a dedicated feeder protection relay, intended for the protection, measure-
ment and supervision of utility substations and industrial power systems. Engineered
from the ground up, the relay is inspired by and is compatible with the Rogowski coil
sensor for current measurement. The new feeder protection relay is designed to un-
leash the advantages of current sensors for protection and control in medium voltage
applications.
The REF601 features compact size and ease of use. The features include:
. Sensor input for phase current
. External CBCT input for earth current
. Three-stage overcurrent protection
. Two-stage earth-fault protection
. Magnetizing inrush detection
. Control of circuit breaker
. Local and remote control
. Five event logs
. Two fault records of analogue value
. Non-resettable trip counter
. On-line measurements
. Comprehensive local HMI
. Universal auxiliary supply rating
. Circuit breaker or panel mounting
. Optional Modbus communication
. Non-volatile memory
. Access control
. Self-supervision
. Built-in test functionality
To Next Page
Loading...
