Comparison of dielectric breakdown properties for different carbon-fluoride insulating gases as SF6 alternatives

investigation of gassing behavior, electric and dielectric properties of different insulating fluids.

ترانسفورماتورهای قدرت از اجزای اصلی شبکه تامین انرژی الکتریکی می باشند که عملکرد قابل اطمینان ترانسفورماتورها یکی از فاکتورهای مهم و تعیین کننده در تامین انرژی الکتریکی محسوب می شود. در نتیجه بررسی و مانیتور عملکرد ترانسفورماتورها در شبکه و همچنین عیب یابی این ترانسفورماتورها غیرقابل اجتناب و ضروری می باشد. به طور کلی عایق های مایع در صنعت فشار قوی کاربردهای متفاوتی دارند که مهمترین وظیفه آنها...

Dielectric Strength of Different Gases in GIS

SF6 is a gas with excellent dielectric properties and is commonly used in gas-insulated equipment. However it has the high global warming potential. Thus, the development of new gases or gas mixtures for GIS, GIL is strongly desired. For dimensioning the gas insulated systems the support insulators (spacers) are of special interest. Contaminations on the insulator surface can cause field distor...

Dielectric Properties of Gases Suitable for Secondary Medium Voltage Switchgear

SF6 is the dominating technology for gas insulated switchgear due to its excellent dielectric, thermal and arc quenching properties. Unfortunately, SF6 suffers from a very high global warming potential (GWP). Even though medium voltage switchgear is sealed for life with less than 0.1% emissions per year, the EU has specifically targeted SF6 for replacement in medium voltage switchgear for secon...

Alternatives for PCB Laminates: Dielectric Properties' Measurements at Microwave Frequencies

Influence of Copper Particles on Breakdown Voltage and Frequency-Dependent Dielectric Property of Vegetable Insulating Oil

The insulating performance of oil is vulnerable to particles especially the conductive particles. This paper investigated the influence of copper particles of micrometer size on the breakdown strength and frequency-dependent properties of vegetable oil. The AC breakdown voltage of contaminated vegetable oil with copper particles of different numbers (ranging from 103 to 106) was measured. The f...