Relay protection system. Bay control unit. Medium voltage switchgear Relay protection system. Bay control unit. Medium voltage switchgear. Close up Post author By Skarvold Limited Engineering Post date May 4, 2020 No Comments on Relay protection system. Bay control unit. Medium voltage switchgear Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.