Technology Class

In the routine maintenance and inspection of power systems, testing current transformers (CT) and potential transformers (PT) is essential for ensuring the safe and stable operation of electrical equipment.

Optimizing the transformer oil chromatography testing process is essential for improving testing efficiency, enhancing result accuracy, and ensuring equipment safety. The following sections detail how to optimize this process from sampling operations, sample preservation, degassing methods, equipment maintenance and calibration, data analysis, to result validation.

Contact resistance testing is a vital method for ensuring the efficient and safe operation of transformers. By assessing the state of electrical connections, potential issues can be identified in a timely manner. This article will explore the key applications of contact resistance testing in the daily maintenance of transformers.

As the operational lifespan of equipment increases, aging phenomena become more pronounced, leading to performance degradation, increased failure rates, and the potential inability of conventional tests to fully uncover latent problems. This article will delve into the impact of power equipment aging on relay protection testing and propose corresponding countermeasures.

In power systems, cable faults significantly impact stability and safety. Understanding cable fault types and mastering detection methods are critical for ensuring reliable cable operations. Below is an overview of common cable fault types and detailed detection methods with key operational tips.

Although the series resonance test device has undergone strict quality inspection before leaving the factory, various faults may still be encountered during the test due to the complex and changeable on-site environment. The above content provides analysis and treatment suggestions for common faults to help testers solve problems more quickly and accurately.

Relay protection test instruments guarantee the proper function of relay devices in power systems. Abnormal issues can affect test accuracy and cause device damage. This article explores these problems and solutions.

DC high-voltage generators play an indispensable role in power cable testing. This article will deeply explore the five major functions of DC high-voltage generators in cable testing, as well as their key position in ensuring cable quality and safety.

The ultra-low frequency withstand voltage generator is an indispensable test equipment in the power system, which is used to ensure the reliability and safety of electrical equipment under ultra-low frequency voltage. This article introduces in detail the use, precautions and maintenance of the ultra-low frequency withstand voltage generator, aiming to help users conduct withstand voltage tests safely and effectively.

In the maintenance and fault prevention of power systems, loop resistance testing plays a vital role. This article aims to deeply explore the necessity of loop resistance testing and comprehensively introduce various testing methods to provide professional guidance for the management and maintenance of power equipment.