廈門市宜帆達新材料有限公司

13——14free娇小性|老司机午夜性大片|天天综合色|欧美国产精品一区二区三区,种女电影未删减完整版,日美a伦理电影,撕票风云粤语在线完整版免费观看

廈門市宜帆達新材料有限公司
廈門市宜帆達新材料有限公司
互感器
2
3
4
互感器
2
3
4

Transformers are also called instrument transformers, which are a collective name for current transformers and voltage transformers. It can change high voltage to low voltage and large current to small current for measuring or protecting the system. Its function is mainly to convert high voltage or large current into standard low voltage (100V) or standard low current (5A or 1A, both refer to the rated value) in order to achieve the standardization and small size of measuring instruments, protection equipment and automatic control equipment. Into. At the same time, the transformer can also be used to separate high-voltage systems to ensure the safety of people and equipment.