PCB Sparks Gaps for Surge Voltages and EMC/EMI Protection in Future Electric Vehicle charging Dr. Prakash Kerur 1 . , Prakash M.N. 2, KeertiKumar S H 3 1 Associate Professor, Department of Electrical and Electronics Engineering, KLE Institute of Technology, Hubballi, India . 2,3 Assistant Professor, Department of Electrical and Electronics Engineering, KLE Institute of Technology, Hubballi, India . Abstract In this paper the aspects of power quality issues such as surge voltage, Electro Magnetically Compatibility (EMC) and Electromagnetic Interference (EMI) and their effects in charging stations of the electric vehicle was investigated. Electric vehicle interfacing systems uses power electronic converters, because of highly nonlinear nature of power semiconductors devices, they could potentially have a significant impact on power quality parameters and distribution networks. As they are non-linear loads and their charging might result in tremendous power quality issues related to the utility grid. A large number of EV charging stations in future might create significant harmonic current emissions , impact the voltage profile, and eventually affect the power quality. The objective of EMC is to ensure safe and reliable operation and to meet legal requirement. In this paper EMC issues such as conducted emission and surge susceptibility are analyzed and t ested for power electronic converters, the function of surge protective device is to limit voltage surges that occur in the normal electrical system as switching of power electronics devices used in the converters. This is accomplished by surge diverting the surge current and limiting any unwanted voltages to a level that will not damage the protected equipment. Keywords: Surge Voltage, EMI, EMC, Power Quality, PCB Spark Gaps, Electric Vehicle 1. INTRODUCTION The usage of electronic equipment is increasing day by day. Each electronic product needs specific circuit & frequency for the operation of the products. Most of electronic products are sensitive to radiated frequency & generates emission to the environment. Due to the use of electronic product in every walk of life, the electromagnetic pollution is also increasing, and this impacts the performance of other products by this there is pollution. The modern electric grid poses technical challenges because of dominating electric mobility as GIS SCIENCE JOURNAL VOLUME 10, ISSUE 3, 2023 ISSN NO : 1869-9391 PAGE NO: 1599