How To Maintain Current Transformers

The maintenance of current transformers is the key to ensuring their long-term stable operation and measurement accuracy. Here are some detailed suggestions for the maintenance of current transformers:

1、 Regular cleaning

Frequency: Regularly clean the current transformer according to its environment. In environments with high levels of dust, the frequency of cleaning should be increased.

Method: Gently wipe the surface of the transformer with a soft cloth or brush to remove impurities such as dust and oil stains. Avoid using corrosive or rough materials to prevent damage to the transformer.

Cleaning agent: Choose a specialized cleaning agent for cleaning, ensuring thorough cleaning and no error impact on the transformer.

2、 Environmental protection

Moisture proof treatment: In environments with high humidity, current transformers should be regularly treated with moisture proof agents or moisture-proof boxes.

Protective cover: Install protective covers, insulation covers, and other equipment to prevent external mechanical damage and adverse weather conditions (such as high temperatures, corrosive gases, etc.) from affecting current transformers.

3、 Regular inspection and testing

Connection inspection: Regularly check whether the connection part of the current transformer is fastened and reliable, avoiding looseness or corrosion, to ensure the reliability and accuracy of signal transmission.

Insulation testing: Use professional insulation testing instruments to regularly conduct insulation tests on current transformers to ensure their normal operation. Testing should be strictly conducted according to the testing procedure.

Calibration: Regularly calibrate the current transformer to ensure its accuracy and stability. Calibration should be carried out by professional technicians and strictly follow the calibration procedure.

4、 Avoid improper use

Rated current: Pay attention to the rated current range of the current transformer and avoid using it beyond its rated current to prevent the current transformer from burning out or being damaged.

Overload and short circuit: Avoid the impact of overload or short circuit on the current transformer, which may cause damage or failure of the current transformer.

5、 Storage and sealing

Cleaning: Before sealing the equipment, it should be cleaned and covered with dust-proof paper to ensure its integrity.

Environment: During storage, it is advisable to avoid damp and harsh environments to prevent damage to the current transformer.

6、 Recording and monitoring

Inspection log: After each inspection or maintenance, relevant information should be recorded, including inspection date, identified issues, measures taken, etc., for subsequent tracking and reference.

Abnormal monitoring: During use, the current transformer should be regularly checked for abnormal conditions such as vibration, abnormal noise, etc., and stopped for inspection and handling in a timely manner.

In summary, the maintenance of current transformers requires comprehensive consideration of cleaning, environmental protection, regular inspection and testing, avoidance of improper use, and storage and sealing. By using the correct maintenance methods, the service life of current transformers can be extended, ensuring their measurement accuracy and stable operation of the power system.