Q. What is a static relay in protection?

Answer

Low stress on primary ac-to-dc converters since, in many circumstances, dc-to-dc converters aren’t even needed. There is no mechanical inertia or bouncing connections, and the system is very resistant to shock and vibration. Static relays were used to address a number of design challenges. Static relays in particular have a general requirement, and safeguards against harm to delicate electronic circuits have to be developed. Electronic equipment can be damaged or rendered inoperable if their delicate circuitry is exposed to common mode or radiated interference; hence it is usual practice to place such components in a shielded container.