What is EN 60255-22-2020?

EN60255-22-2020, also known as IEC 60255-22-2020, is an international standard for electrical relays. The purpose of this standard is to provide guidelines for the design, testing, and performance evaluation of these relays. It covers a wide range of relay types, including time-delay relays, voltage and current relays, and distance protection relays.

Design and Testing of Electrical Relays

When it comes to designing and testing electrical relays, there are several factors that need to be taken into consideration. One of the most important aspects is the reliability of the relay. Relays are often used in critical applications where any failure could have serious consequences.

According to EN60255-22-2020, relay designers must ensure that their relays meet certain performance requirements. These requirements include parameters such as operating time, release time, and contact resistance. There are different methods available for testing these parameters, including mechanical endurance tests, electrical endurance tests, and environmental tests.

Performance Evaluation of Electrical Relays

Once a relay has been designed and manufactured, its performance needs to be evaluated to ensure that it meets the specified requirements. One common method used for evaluating relay performance is through type testing. Type testing involves subjecting the relay to a series of tests that simulate real-world conditions.

EN60255-22-2020 specifies various type tests that should be performed, such as temperature rise tests, dielectric tests, vibration tests, and mechanical shock tests. These tests help determine if the relay can withstand the expected operating conditions and meet the performance criteria set by the standard.

Conclusion

EN60255-22-2020 plays a crucial role in ensuring the reliability and performance of electrical relays. By following the guidelines set by this standard, relay designers and manufacturers can ensure that their products meet the required quality standards. Additionally, the standard provides a framework for evaluating relay performance through type testing. This helps users select the right relay for their specific application needs. Overall, EN60255-22-2020 is an essential reference for professionals working in the field of electrical relays.