Electrical Signature Analysis (ESA) and Motor Current Signature Analysis (MCSA) are similar, but ESA has several significant advantages over MCSA, especially in the context of broader condition monitoring. Here is a comparison:

Electrical Signature Analysis is a development of Motor Current Signature Analysis with broader analysis capabilities because it includes voltage and more electrical parameters. It is very suitable for multi-fault diagnostics, including electromechanical combinations, especially in modern systems with inverters.