
Column: Tap-changer know-how
Tap-changer DGA: Uncovering an enigma Part 2: Basic procedures In Part 1 of this article, the general field of tap-changer DGA has been outlined. In...
BY MLADEN Banovic, PhD, Editor-in-Chief
Tap-changer DGA: Uncovering an enigma Part 2: Basic procedures In Part 1 of this article, the general field of tap-changer DGA has been outlined. In...
Changes bring opportunity Fast-paced changes in requirements for transformers are fuelling a comprehensive evolution affecting the standards, technology, business, market, and in the end, the...
Market evolution I have been working in the power product industry for the last 21 years. I started with high-voltage breakers in 1996, where I...
Towards condition-based maintenance Power transformers are becoming older and older and it is not uncommon to see a service life of more than 50 years....
Generator step-up transformers Background The development of global power generating capacity since the first “oil shock” in the early 1970s has evolved dramatically and has...
Huaming Vacuum Tap-Changer CV2 Introduction With thousands of installed base products and more than 10 years of field experience, CV2 vacuum tap-changer is claimed to...
The home of core cutting and stacking technology L.A.E. – Lughese Attrezzature per l’Elettromeccanica S.r.l. has been recognized for intensive research and development in the...
Improved transformer temperature monitoring Abstract This article discusses transformer temperature monitoring where a strategy of reduction in maintenance costs and outages, by replacing older ancillary...
Power transformers are among the most expensive equipment in any energy supply network. Given the high investment costs, it pays to calculate precisely before making...
Abstract Power transformers are vital pieces of equipment in the power grid. However, the measures taken to safeguard these critical transmission nodes from high-powered ballistics...
Introduction The Isolated Phase Bus Duct (IPBD) is the main conduit for power distribution in a power generation facility. With current carried between the generator...
Transformer energisation after network blackout Abstract According to ENTSO-E Network policy 5, responsibility for system restoration after a blackout is on the shoulders of Transmission...
A dry-type transformer (DDT) is a safe, low maintenance and environmental-friendly solution suitable for indoor and outdoor applications where not only safe and dependable power...
Abstract Due to constraints in the Irish transmission system, the Irish Transmission System Operator called for increased capacity in the network to cater for increased...
Winding resistance testing is a very revealing electrical diagnostic test for the routine screening of power transformers to determine their “state of health”. In fact,...
Introduction Finnish nuclear power company Teollisuuden Voima Oyj (TVO) implemented Vaisala’s online hydrogen, moisture and temperature monitor to constantly follow the condition of their transformers....
Abstract This article explores the critical importance of the proper selection of copper, one of the key raw materials used in the making of continuously...
Introduction Using the Oweld oxy-hydrogen gas generators, designed and manufactured by Oxyweld, transforms your brazing line into a modern and cutting-edge place that increases the...
Abstract This article demonstrates how the inclusion of partial discharge as a measurement parameter ensures a more reliable diagnosis of insulation condition in transformer bushings....
UK steelworks have gone through a turbulent time in recent years, but there is now some stability as the UK and global marketplaces once again...