What characterizes improperly installed transformers?

Improperly installed transformers are characterized by not adhering to industry standards and installation guidelines. This lack of compliance can lead to several operational issues and safety concerns. For example, if a transformer is not mounted properly or is connected incorrectly within an electrical system, it can result in inefficient operation, overheating, or even damage to the transformer itself. Such installations might also create hazardous conditions, including the risk of electrical shocks, fires, and system failure.

In contrast, transformers that meet all industry standards, those that are correctly installed according to guidelines, and those that have been tested for performance do not fall under the category of improper installation. These characteristics indicate compliance with regulatory requirements, ensuring safety, reliability, and performance efficiency, which are compromised when installation standards are not followed.