Research Project Summary Information
Externally Gapped Line Arresters for Enhanced Power(23636)
Surge arresters are the standard products used to protect power systems from the adverse effects of lightning, with protection of distribution and transmission lines being the second most common application. The non-gapped Metal Oxide Varistor (MOV) based surge arrester is the predominant form on the market today, and the only type used for line protection in the U.S. In other parts of the world however, a new type of MOV based arrester with significant advantages, is gaining popularity. This new device is referred to as the externally gapped line arrester (EGLA). The design of the EGLA is fundamentally different than MOV based surge arresters, as it has an electrical open circuit between the arrester and the high voltage line it is protecting. Due to this configuration, the EGLA has zero line losses (no power consumption), cannot fail closed, uses 25% less material, has longer life expectancy, and has expanded design possibilities.
The EGLA is underutilized in the US; however, uptake is anticipated, in part due to current re-writing of the IEC standards on physical and electrical requirements and the advantages the EGLA offers. Ceralink proposes to develop a product for the US and markets worldwide.
The overall objective of this project is to develop an improved EGLA product for the Institute of Electrical & Electronics Engineers (IEEE) market – power transmissions and distribution companies. The EGLA is a new product for the US market, making it more open to redesign from the start. The improvement of the EGLA will be realized through the development of a new formulation for MOV with less heavy metals and the use of Microwave Assist Technology (MAT™) firing. The scope of work includes: Developing MOV Formulation; Produce “Green” MOV Compacts and Sinter; Characterize and Electrical Testing of Sintered products; Select and Fine-tune Material Formulation & Preparation for Optimization Study; Conduct a Firing Optimization Study; Characterize and Electrical Testing of Optimized MOV; Develop Prototype Design and Product Mockup; and Commercialization Planning.
The projected benefits of developing a superior US-made EGLA include 1) elimination of power consumption in line arresters, saving 50 million metric tons of CO2 emissions annually; and 2) improved reliability for power distribution through fewer momentary power disruptions, saving U.S. industry $28 Billion each year. The use of MAT, (an underutilized energy efficient manufacturing method), will significantly reduce the cost of producing the MOV while simultaneously improving product properties. The reduction of heavy metals in the MOV composition further decreases the cost. This project will position Ceralink and ArresterWorks to launch a joint venture whose mission is to manufacture EGLAs for the electric power industry, which will lead to dozens of new manufacturing jobs in New York State.
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