Transformers Magazine Vol. 4 Issue 4
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Editorial Message
Dear Readers,
A big part of the materials that we publish in the magazine is aimed at shedding light on the evolution of the transformer technology and market from different points of view. However, this evolution might be much more drastic than what we imagine if we don’t look at the complete environment for transformers.
According to a new report Energy Transition Outlook 2017 by DNV GL, by 2050, 85 % of global electricity needs will be met by renewable sources of energy! The installed capacity of renewable sources in 2015 was less than 8 %, without hydropower. So, how will this increaserenewables in the energy mix affect the market of generator step-up transformers, for example? This issue features a great market review column by Steve Aubertin, which goes into some specific detail about this trend and its effects on the size and number of transformers, and thus on this entire market niche.
Furthermore, what will be the effects of this trend on the transformers in the transmission and distribution grid? Some of them have already been discussed in other articles published in previous editions of the magazine. However, the increase of renewables in energy production is still only one of many drivers which shape the future of the industry.
Market positioning through technology
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 people. This was stated...
Interview with Hans Linder, Vice President at PowerTender
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 spent twelve years, and...
Transformer Services solutions
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. Operators also have new...
Column: Market review
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 had a fundamental impact...
Vacuum switching with mechanical backup
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 be the most reliable...
Core cutting and stacking technology
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 fields of core cutting...
Column: Condition monitoring
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 technology with modern IEDs,...
Optimizing total transformer costs
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 a purchase decision. The...
Protecting the power transmission grid
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 are often insufficient. This...
Isolated phase bus duct systems
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 and a step-up transformer...
Column: Transformer Lifecycle
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 System Operators (TSOs). They...
Mobile HV source for on-site insulation testing on dry-type transformers
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 are important. It is...
Design and delivery of Ireland’s largest transformer
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 renewable generation by adding...
Transformer screening tests: It’s time for a rethink!
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, it’s an essential test...
Nuclear power plant continuously monitors transformer conditions
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. The continuous monitoring gives...
Role of copper in continuously transposed conductors
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 transposed conductors for extra...
Oweld oxy-hydrogen gas generator for the 4.0 era
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 prestige of your company....
Effective bushing diagnosis using partial discharge testing
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. Comparative diagnostic tests showed...
