What is EN 60255-24:2020

The EN 60255-24:2020 standard is a professional technical specification that

is widely used in the electrical industry. It provides guidance on the

testing and performance of protective relays and relay systems. This

technical article aims to explain the key aspects and importance of this

standard in the field.

Understanding the Purpose

One of the primary purposes of the EN 60255-24:2020 standard is to ensure

the reliable operation of protective relays. These relays play a crucial

role in safeguarding power systems by detecting abnormalities, faults, and

dangerous conditions. By adhering to this standard, manufacturers and

engineers can design, test, and evaluate the performance of these relays,

thereby enhancing the overall system reliability.

Key Requirements and Tests

The standard specifies various requirements and tests that must be

conducted on protective relays. These include but are not limited to:

performance testing, verification of stated specifications, endurance

testing, thermal and mechanical stress testing, and electromagnetic

compatibility (EMC) testing. Meeting these criteria ensures that the relays

meet industry-wide quality and safety standards.

Significance for the Industry

The EN 60255-24:2020 standard holds significant importance for the

electrical industry as a whole. It promotes consistency and reliability in

the design, production, and use of protective relays, resulting in safer

and more efficient power systems. Compliance with this standard enables

manufacturers to demonstrate the quality and reliability of their products,

while also providing users with confidence in the performance of these

critical devices.