TEAM DIRECTORY BY BUSINESS UNIT
SUBSTATIONS TECHNOLOGY & TESTING
Mr. Bruce Sunga is the Director of the Substations Technology and Testing sector at Powertech Labs. He brings more than 25 years of commercial, industrial and electric utility experience in areas of stations and system planning, analytical studies, asset management, project management, design, automation, R&D, construction, testing, commissioning and acceptance, failure investigation and maintenance. The Substations Technology and Testing sector is comprised of two world-renowned labs (High power/High Current and Applied Chemistry – fuels and lubes, polymers, environment, insulating oils and gases), a prestigious R&D and investigations group, a substations studies group, and field testing services and asset management group.
With over twenty years of experience in the energy sector, Dr. Jorge Hollman is the Senior Manager for the Substations Studies and Equipment Applications group at Powertech Labs. He is a recognized power systems expert and has experience in modelling, transients, equipment specification and performance in planning and operations. At Powertech, Jorge’s team has a variety of technical specialties including arc flashing, stations equipment applications, insulation coordination, Point On Wave (POW) switching applications, transient recovery voltage (TRV), temporary over voltage (TOV) and transients analysis.
Dr. Stuart Chambers is the manager of R&D, Investigation & Consulting, as well as a lead for the polymer and materials investigation facility in Powertech’s Stations Research & Development lab under the Substations Technology & Testing group. His areas of research and development include transformer diagnostics, insulating paper degradation, ageing properties of insulating oils, and polychlorinated biphenyls (PCB) decontamination. He has completed substantial research into insulating solids, fluids and gases for Canadian Electrical Association (CEATI), Electric Power Research Institute (EPRI), BC Hydro and other research organizations.
Dr. Chambers is a materials/analytical chemist with 15 years of experience and training. His areas of expertise and interest include materials preparation, alteration and characterization, and chromatography/purification.
Dr. Eric (Qian) Li has more than 15 years professional experience with high-power, high-voltage and high-current testing, as well as electric power testing equipment and system development. With more than 10 years working in world-class electric power testing organizations, Dr. Li is experienced in a wide variety of electric power equipment testing procedures and techniques. As a senior engineer and project leader in Powertech’s High Power Lab, Dr. Li is responsible for planning, preparing and executing a broad spectrum of electric power tests in accordance with IEEE, IEC, ANSI, UL and CSA standards to properly address the needs of electric utilities and manufacturers worldwide.
Mr. Hamish Miller is a High Voltage Test Engineer whose responsibilities include testing transmission, substation, distribution and other equipment to ensure conformance with industry standards. He also performs failure analysis of electrical equipment and works with international clients to resolve issues with high voltage testing or failure analysis.
Mr. Morton is a Specialist Engineer with Powertech’s High Power Lab, under the Substations Technology & Testing Business Unit, where he is primarily involved in high power short-circuit and switching testing. He has 25 years of experience in testing high and medium voltage switchgear, fuses, power and grounding connectors, power and instrument transformers, reactors, high voltage cables and cable accessories, terminations, large machine stator coils, revenue meters, electric motors, and motor drives.
Mr. Stephen Varisco is the Manager of Applied Chemistry & Environment at Powertech Labs. With 20 years of analytical laboratory experience in the field of environmental testing, Stephen is responsible for all unit testing performed in the environmental, transformer oil and coolant/fuel/lubricant departments. He has extensive expertise with laboratory optimization, method validation, data interpretation and laboratory information systems (LIMS), and is currently the vice chair of the British Columbia Environmental Laboratory Technical Advisory Committee (BCELTAC).