Dielectric Loss Factor Measurement in Power Systems

What is it about?

Dielectric loss factor (DLF) is an important parameter to reflect the insulation condition of high voltage capacitive equipment which is widely installed in power systems. Hence, the accuracy of DLF measurement will directly affect the safety and stability of power grid. This paper proposed a new algorithm based on sampling sequence reconstruction approach to accurately measure the DLF without being affected by asynchronous sampling and noise.

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Why is it important?

With the growth and development of power grid, the number of high voltage power apparatus is increasing. The good status of high voltage power equipment is the base to ensure the security and reliability of a running grid. As an important index of the electrical apparatus, especially for capacitive equipment, the dielectric loss factor (DLF) reflects the insulation conditions of electrical devices. The insulation defects in the electrical apparatus, which will bring about some chemical and physical changes, may cause some running problems of equipment. Consequently, in order to discover the potential issues of electrical equipment and avoid accidents in time, the accurate measurement of DLF is one of the key issues that should be solved first in priority.