ELECTRICAL AND MAGNETIC FIELD ANALYSIS ON THE DESIGN OF THE 24KV INTERRUPTER VACUUM CONTACTOR

• Main Author: Rifky Santika, Julian
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/54069
• Institution: Institut Teknologi Bandung

To meet the need for electrical equipment to balance Indonesia's electrification efforts such as the supply of Vacuum Circuit Breakers for medium voltage networks, Indonesia must have local production related to electrical goods such as Vacuum Interrupters in Vacuum Circuit Breakers to increase welfare through increasing TKDN production. In optimizing the TKND value for Vacuum Interrupter, a Vacuum Interrupter design that has been optimized from the existing design is needed and can be produced locally in Indonesia and still meets the VI standard in IEC 62271-100. The VI design requires the most important analysis of the magnetic field and the electric field because according to the VI function it depends on the magnitude of the electric field and the geometry of the magnetic field that is made to resist arching. The electric and magnetic field analysis was carried out on the modeling region VI with the contactor with CuCr material, metallic shield with steel1008 material, and solid insulator with porcelain material. The analysis is performed to simulate the simulation region closer to real, the better with the vacuum space; air; simulation area. The design analysis of the contactor relationship with the fuse between the tip and body is better in terms of the distribution of the electric field. Analysis of the use of metallic shields which is better used in the design because it holds the electric field in a vacuum chamber with solid insulators with floating shielding and polarize shielding types which have similar performance. With a contactor that has an RMF design is better than without fins at all because the spread of the field rotated with 9 fins is better than the total fins below. As well as the minimum gap at the end of the best contactor at 4MV / m of 8.5mm and 10mm gap.