Global site

ABB's website uses cookies. By staying here you are agreeing to our use of cookies. Learn more

Feeder protection and control REF620 ANSI

REF620 ANSI is a dedicated feeder relay perfectly aligned for the protection, control, measurement and supervision of utility substations and industrial power systems.

REF620 ANSI is a dedicated feeder relay perfectly aligned for the protection, control, measurement and supervision of utility substations and industrial power systems. It is suitable for feeders requiring ANSI/IEEE standards and ring-lug terminals in grounded and ungrounded distribution systems. Three different standard configurations are available from comprehensive single breaker configuration to enhanced one-and-half breaker and double bus, double breaker configurations with directional overcurrent, voltage and frequency protection, synchronism check, power and energy measurements and fault location. All configurations also include reclosing, load profile and phase step distance as standard and also offer power quality, arch flash detection and additional binary I/O as option.

The REF620 also offers a cable fault detection (CFD) feature for real-time detection and notification of short duration, high current feeder faults where the substation breaker does not operate. Knowledge of fuse-operated outages before first customer call and of incipient underground (insulation) and overhead (vegetation) faults without outage is possible with CFD.

REF620 is a member of ABB’s Relion® family and a part of its 620 protection and control product series. The 620 series has been designed to unleash the full potential of the IEC61850 standard for communication and interoperability of substation automation devices including fast, horizontal relay-to-relay (GOOSE) communications for cost-effective, reliable and high-speed protection and control schemes. REF620 also includes support for Modbus® and DNP3 protocols. 
 
Why ABB?

  • Six setting groups
  • Drawout design
  • Underground, overhead cable fault detection (CFD)
  • High-speed (< 1 ms) outputs
  • High impedance (HIZ) fault detection

Are you looking for support or purchase information?

Loading documents

Related offering

Contact information

What would you like to do?

Submit your inquiry

Please select country from the list below
Country
widgets-contact-location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Sales Team

Your local ABB's partner contact

Your local ABB Sales Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Submit your inquiry

Please select country from the list below
Country
widgets-contact-location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Service Team

Your local ABB's partner contact

Your local ABB Service Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Submit your inquiry

Please select country from the list below
Country
widgets-contact-location
For this country please use ABB's partner contact details
Name
Company
E-Mail
Phone
Zip code
Your message
Cancel

Thank you for your inquiry and interest in ABB.
We will get back to you as soon as possible.

Back

An error occurred and your inquiry could not be sent.
Please try again later.

Back

Your local ABB Emergency Team

Your local ABB's partner contact

Your local ABB Emergency Team

Your local ABB's partner contact

Name
Address
 
Phone
 
Fax
 
E-Mail
 
 

Please select country from the list

Close

Authorized Value Providers

Close
Contact Service unavailable