What does the acronym CSP stand for in electrical transformers?

The acronym CSP stands for "Completely Self Protected." This designation indicates that a transformer is designed with built-in protections to safeguard against certain electrical faults, such as overloads or short circuits. A Completely Self Protected transformer typically includes features like fuses or circuit breakers that automatically disconnect the transformer from the power source when a fault condition occurs. This internal protection mechanism enhances safety, reduces the need for external protective devices, and minimizes the risk of damage to the transformer and connected equipment. The use of fully protected transformers is crucial in ensuring the reliability and longevity of power distribution systems.

While other options may pertain to different concepts within electrical engineering, they do not accurately represent the self-protective feature that the term CSP highlights.