1. Universiti Teknologi MARA,School of Electrical Engineering, College of Engineering,Shah Alam,Selangor,Malaysia,40450
2. King Mongkut’s University of Technology Thonburi,126 Pracha Uthit Rd,Thung Khru,Bangkok,Thailand,10140
3. Universiti Tenaga Nasional,College of Engineering / Institute of Power Engineering,Kajang,Selangor,Malaysia
4. Universiti Putra Malaysia,Advanced Lightning, Power and Energy Research Centre (ALPER), Institute of Nanoscience and Nanotechnology (ION2) Faculty of Engineering,Serdang,Selangor,Malaysia,43400