As an indispensable measurement and protection device in the power system, the current transformer has a wide and far-reaching application field. From traditional power systems to modern industrial automation, current transformers play a vital role.

In the power system, current transformers are an indispensable component of key facilities such as substations and power plants. Its main function is to convert the large current on the primary side into a small current on the secondary side in proportion to facilitate measurement, control and protection. Through the current transformer, power engineers can monitor the current situation in the power grid in real time to ensure the stable operation of the power system.

In the substation, the current transformer is usually installed in the high-voltage switch cabinet to measure and monitor the current of the incoming and outgoing lines. By measuring the current value on the secondary side of the current transformer, the actual current on the primary side can be accurately calculated, providing important data support for power dispatching, load control, etc. At the same time, the current transformer can also be used in conjunction with the protection device. When abnormal conditions such as overcurrent and short circuit occur in the power grid, the protection action is triggered in time to prevent equipment damage and power grid accidents.

With the improvement of the level of industrial automation, the application of current transformers in the field of industrial automation is becoming more and more extensive. In industrial automation systems, current transformers are usually used to monitor the operating status of electrical equipment such as motors and transformers. By measuring the current value of electrical equipment, it is possible to determine whether the equipment is in normal working condition, detect equipment failures in time and perform repairs.

Current transformers can also be used in conjunction with automation equipment such as PLC (Programmable Logic Controller) to achieve remote control of electrical equipment. For example, on an automated production line, current transformers can monitor the motor current value on the production line in real time and transmit the data to the PLC. The PLC adjusts the production line's operating speed, processing accuracy and other parameters according to the change in current value to achieve automated control of the production process.

With the continuous development of new energy technologies, the application of current transformers in the field of new energy has also presented new opportunities. In new energy power generation systems such as solar energy and wind energy, current transformers are used to monitor the current output of equipment such as photovoltaic panels and wind turbines. By real-time monitoring of the current value of the equipment, the operating status and power generation efficiency of the equipment can be understood, providing data support for scheduling of new energy power generation systems.

Current transformers also play an important role in the construction of smart grids. Smart grids integrate advanced communication, information and control technologies to achieve real-time monitoring, control and scheduling of power grids. As an important sensor in smart grid, current transformer can provide real-time and accurate current data for smart grid, and provide strong support for the dispatching, control and optimization of power grid.

As a key equipment for power measurement and protection, current transformer plays an important role in power system, industrial automation and new energy fields. With the continuous development of the power industry, the application field of current transformer will continue to expand, and the technical performance will continue to improve. In the future, current transformer will be more intelligent and integrated, providing more reliable support for the development of power industry. At the same time, we also look forward to the current transformer showing greater application potential and value in the fields of new energy, smart grid and so on.