The Current Transformer (CT) is a commonly used electrical device primarily employed for current measurement and protection in power systems. It finds extensive applications in power transmission, distribution, substations, and industrial sectors.

Below are the main application scenarios of the Current Transformer:

1. **Current Measurement:** The Current Transformer transforms high currents into smaller secondary currents, enabling convenient and accurate current measurement. In power systems, monitoring the magnitude of currents is essential to ensure stable system operation and load balancing.

2. **Protection Devices:** Current Transformers play a crucial role in protection devices. In power systems, when currents exceed rated values, it may lead to equipment damage or accidents. By converting high currents into secondary currents, protection devices can promptly detect current abnormalities and take appropriate measures, such as circuit interruption or issuing alarms, to ensure system safety and stability.

3. **Electric Energy Metering:** In power systems, electric energy needs to be measured and accounted for. Current Transformers are instrumental in electric energy metering, converting currents in circuits into secondary currents, which are then measured and recorded by energy metering devices to ensure fair billing.

4. **Power Monitoring Systems:** Real-time monitoring of power loads and consumption is critical in modern power systems. Current Transformers can be used in power monitoring systems to monitor current magnitudes in real-time, helping power management personnel make informed decisions, plan energy dispatch rationally, and improve the efficiency and stability of the power system.

In conclusion, the Current Transformer is an indispensable device in power systems, providing crucial technical support for current measurement and protection, ensuring stable operation and safe use of the power system. Moreover, with technological advancements, the application scenarios of Current Transformers are expected to expand further, making even greater contributions to the development of the power industry.