Transformer, also known as instrument transformer, is the general name of current transformer and voltage transformer. It can change high voltage into low voltage and large current into small current for measurement or protection system. Its function is mainly to convert high voltage or large current into standard low voltage (100V) or standard small current (5A or 1A, both refer to rated value) in proportion, so as to realize standardization and miniaturization of measuring instruments, protection equipment and automatic control equipment. At the same time, the transformer can also be used to isolate the high-voltage system to ensure the safety of personnel and equipment.
