33kv Outdoor Single-Phase Casting Resin Current Transformer

         1. Transformer is also known as the utility Transformer, is the current Transformer and voltage transformer collectively. Can turn high voltage into low voltage, large current into small current, used to measure or protect the system. Its main function is to convert high or large current into standard low voltage(100V) or standard small current(5A or 1A) in proportion so as to standardize and miniaturize measuring instruments, protective equipment and automatic control equipment.

          2. At the same time, the transformer can also be used to separate the high voltage system to ensure the safety of the person and equipment. In power lines, the current difference from a few to a few thousand, voltage difference from several volts to several million volts. The current voltage in the line is high, so it is very dangerous to measure directly.

         3. To facilitate the conversion of the secondary instrument to a uniform current voltage, the Transformer is used to change current pressure and isolate electricity. The majority of products are single-phase, because voltage transformer capacity, small body accumulation, the inner and outer insulation between the three-phase high-pressure casing is difficult to meet, so only 3-15kV products sometimes adopt three-phase structure. Electromagnetic voltage transformer:

        4. According to electromagnetic induction principle, the transformation voltage is similar to the basic structure and Transformer. The capacitive voltage Transformer is composed of capacitive voltage divider, compensation reactor, intermediate Transformer, damper and carrier protection gap, etc.. Photoelectric voltage transformer: Through the principle of photoelectric transformation to realize voltage transformation, is still under development.