The relay must be easy to calibrate and set and the status of the relay during operation must be fully indicated at all times with lights, flags, meters, etc. Another requirement of a relay for this type of application is that the cost be minimal.
The relay must be easy to calibrate and set and the status of the relay during operation must be fully indicated at all times with lights, flags, meters, etc. Another requirement of a relay for this type of application is that the cost be minimal.