Electric Energy Magazine is published 6 times a year by:
Jaguar Media Inc.
834 Montée Masson
Terrebonne, Quebec Canada J6W 2C6
Tel.: (888) 332-3749
Fax: (888) 243-4562
Electric Energy T&D Magazine serves the fields of electric utilities, investor owned, rural and other electric cooperatives, municipal electric utilities, independent power producers, electric contractors, wholesalers and distributors of electric utility equipment, manufacturers, major power consuming industries, consulting engineers, state and federal regulatory agencies and commissions, industry associations, communication companies, oil & gas companies, universities and libraries.
By: Ding Lin, Protection Engineering, Research Centre, Manitoba Hydro & Randy Wachal, Manitoba HVDC
A large set of fault cases was developed for the dynamic transient testing of line protection for a new 230 kV transmission line recently commissioned by Manitoba Hydro.
By: David J. Woodcock, Weidmann Systems International
Utilities in North America installed a large number of transformers from the early 1960’s to the end of the 70’s. As a result of diminished capital spending since that time, many transformers are approaching the end of their technical life and most have reached the end of their financial life. Driven to reach an increasingly higher level of reliable electrical service, the trade-off for diminished capital investment is to spend more on equipment maintenance.
By: Dipl.Ing. Gerfrid Newesely, technical consultant for Nynas
The cooling behaviour of oil filled transformer is influenced by several factors including the type and volume of insulating oil, the surface and design of the radiators, the availability of oil pumps or air fans, the loading mode, etc.