The phrase "wert in operation" refers to something that is currently in use or functioning. There are a variety of synonyms that can be used to convey the same meaning, such as "in action," "in progress," "active," "working," "ongoing," or "in use." These terms all suggest that something is currently functioning or being utilized in some way. Other similar phrases might include "underway," "in motion," or "in use at the moment." Whatever term is used, the idea is to convey that something is currently being employed or utilized in some way, and that it is currently active and functioning as expected.