Functions and features
Unique REF620 ANSI features
− Six setting groups
− Drawout design
− Underground, overhead cable fault detection (CFD)
− High-speed (< 1 ms) outputs
− High impedance (HIZ) fault detection
− Arc flash detection (AFD)
− Phase step distance protection
− Power quality
− Ring-lug terminals for all inputs and outputs
− Large, easy to read LCD screen
− Programmable push-buttons
− Environmentally friendly design with RoHS Compliance
Application
The REF620 provides main protection for overhead lines, cable feeders, and busbar systems of distribution substations. It can be applied for protection and control of grounded and ungrounded distribution systems. It offers support for single breaker, 1,5 breaker and double breaker feeder configurations.
Flexible order coding allows for choosing configurations to best fit your distribution feeder application needs.
Protection and control
The REF620 is the most powerful, advanced and simplest feeder protection relay in its class, perfectly offering time and instantaneous overcurrent, negative sequence overcurrent, phase step distance, phase discontinuity, breaker failure, thermal overload, and voltage metering and protection. The relay also features high impedance fault (HIZ) and sensitive earth fault (SEF) protection for grounded and ungrounded distribution systems.
More information about our company
Our extensive inventory of industrial products is ready to ship, which is the core of our products. It contains more than 400,000 electronic products such as PLC, HMI, drives, servo and CNC equipment, IPC and PG.
Whether new or discontinued, from the smallest modules to complete configurations. We have years of products that are not readily available, the latest technologies and all the other products in between.
Market insight, technological developments and customer needs allow us to buy strategically, so we rarely need to move our operations. If the item happens to be out of stock, we will search our preferred supplier network.
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