Dr. Mohd Ishak’s research focuses on the development and performance evaluation of advanced electrical insulation materials for power transformers, including both liquid (such as nanofluids) and solid (such as polymeric blends and natural fiber composites) insulation systems. His expertise covers material characterization, electrical breakdown behavior, dielectric response, and aging performance under operational stresses. He is also actively involved in broader areas such as high voltage engineering, power system protection, lightning characteristics and grounding, electric vehicle infrastructure, and renewable energy integration.