Voltage Source
A voltage source is a two terminal device providing a constant voltage across its terminals regardless of current flowing through it. A voltage source may be dependent on some circuit variable or may be independent at all.
Current Transformer Classification based on Four Parameters
One can discern parameters that define their use and function in the electrical circuit
or the transformer’s circuit itself among the many features of transformers. We
therefore identify several factors that characterize the based on the designation of
the circuit and the circuit of the transformer.