The term "female transformer" might sound a bit unusual in the context of electrical engineering. Typically, transformers are gender-neutral devices and are not categorized by gender. In technical terms, transformers are just called "transformers," regardless of any other attributes.
However, if youβre referring to gendered terms used in other contexts, such as fictional characters or specific designations, it might depend on the context in which you're asking. For example, in the world of "Transformers" (the popular franchise featuring robots that can transform into vehicles and other forms), a female character might be referred to by her name or designation rather than a general term.