News at STRI - 2006

November 14, 2006 - Inauguration of unique testing site for 800 kV HVDC

STRI has got an assignment from ABB to construct and operate an outdoor test site to perform extensive testing of 800 kV HVDC equipment. This will be first of its kind in the world. The test site is located at STRI and was officially inaugurated November 14. Read more...

November 14, 2006 - STRI has performed dielectrical type tests on an 800 kV DC voltage divider

STRI has performed dielectrical type tests on an 800 kV DC voltage divider manufactured by Schniewindt GmbH & Co. KG. The test object passed the test successfully.

November 14, 2006 - STRI at CEPSI in India

STRI participated in the 16th CEPSI conference of the Electric Power Supply Industry in Mumbai, India, 6 -10 November 2006. Our demonstration of the STRI capability in consulting, software and testing attracted more that 60 customers from most parts of Asia. Read more...

November 13, 2006 - STRI makes a presentation at the "Forum for koblingsannlegg" in Oslo

The "Forum for koblingsannlegg" was held in Oslo, Norway, October 31 - November 1. This forum attracted 57 participants from different Norwegian companies. The presentations were conducted by power companies (Statnett, Hafslund Nett, Omega Elkraft, Adger Energi Nett), manufacturers (ABB, Areva, Siemens) and consulting companies (SINTEF and STRI). Igor Gutman made an invited presentation entitled "Isolatorer for høyere spenninger - porselen kontra polymerer". Read more...

November 8, 2006 - STRI makes a presentation at the International Conference "Polymeric insulators and high-voltage insulation constructions"

The 2nd International Conference "Polymeric insulators and high-voltage insulation constructions" was held in St. Petersburg, Russia, October 23-27. The conference is the largest All Russian forum attracting mostly Russian manufacturers (the vast majority of the participants), power utilities and research companies. This year the program includes about 50 participants from Russia, Ukraine, Byelorussia, Kazakhstan, Sweden (STRI) and Germany (2KM and Dow Corning). Read more...

October 19, 2006 - STRI presents a collaborative paper with ABB at the 13th Asian Conference on Electrical Discharge

The 13th Asian Conference on Electrical Discharge was held in Sapporo, Japan, October 16-19. The conference can be considered as Asian analogue of CIGRÈ ISH Symposium and is addressed to electrical engineers, physicists, material scientists who are engaged in studies and industrial applications in electrical engineering. This year the program includes 107 participants from 10 countries, Europe was represented by Poland and Sweden; USA and Australia were also represented. Read more...

The meeting was held in Ludvika, Sweden in STRI’s localities by the lakeside of lake Väsman. The new features with Use of Command files and Control Processes in Simpow was presented. Invited speakers presented studies made with Simpow where focus are on interesting assumptions during the studies both of Simpow character as well as of general electrical interest. Read more...

September 15, 2006 - STRI participates in IEC/CIGRÈ working groups before CIGRÈ Session

The 17th meeting of the IEC TC 36 working group 11...

The 3rd meeting of the Cigré working group C4.3.03...

The 2nd meeting of the Cigré working group A3.21...

CIGRE/CIRED Joint Working Group C4.110...

Read more...

August 21, 2006 - STRI perform extensive testing on 800 kV HVDC equipment

STRI has got an assignment from ABB to construct and operate an outdoor test site for 800 kV HVDC equipment. The test site is located at STRI and the construction work is in full swing. The long-term tests will start during the fall this year. Read more...

August 11, 2006 - Visit of test centre in Russia: detection of support and hollow porcelain insulators

Porcelain has been, and is still extensively used, as insulation material in high voltage applications for more than 120 years in many outdoor applications. Due to this, there are many relatively old insulators still in service. However, porcelain is a brittle material, thus some cracks in the porcelain body may appear in service. This issue is of great concern to many of the utilities worldwide. Read more...

August 10, 2006 - STRI at Nordac 2006

The 2006 edition of the Nordic Distribution Automation Conference (Nordac) has taken place in Stockholm, 21 and 22 August. STRI presented a keynote paper on power-quality and EMC. STRI is further co-author of five regular papers, four of which have been written together with our co-operation partners.

The papers include results from the EU-DEEP project, from our co-operation with Luleå University of Technology and Skellefteå Kraft, and from our co-operation with Unipower. Read more...

August 9, 2006 - Second book on power quality by STRI author

Wiley and IEEE Press have recently issued the second book by Math Bollen, manager power quality and EMC at STRI. The book is entitled "Signal processing of power quality disturbances" and was written together with Irene Gu, professor in signal processing at Chalmers University of Technology. The book contains practical descriptions of power quality phenomena and relevant standards as well as mathematical details of advanced signal-processing techniques. Read more...

July 13, 2006 - Collaborative paper ESKOM - STRI - TAP - University of KwaZulu-Natal

At present a few countries are looking into possibility to convert their HVAC transmission lines into HVDC lines. The availability of cost effective power electronic technology having higher current ratings makes the conversion of an existing high voltage AC transmission line to high voltage DC a viable possibility. The objective is to use an existing AC transmission line and to operate the installed conductors at their full rated current carrying capacity, thus optimising the energy transfer by using DC. In this conversion process the requirement for the external insulation is in the most cases the main dimensioning parameter for the line design. ESKOM, STRI, TAP and the University of KwaZulu-Natal presented a collaborative paper at the HVDC 2006 Congress "Meeting the Power Challenges of the Future Using HVDC Technology Solutions", July 12-14, 2006, Durban, South Africa. Read more...

July 5, 2006 - Succesfull STRI contributions to this year's PMAPS conference

The 9^th International Conference on Probabilistic Methods Applied to Power Systems, (PMAPS) took place June 11-15, 2006 in Stockholm, Sweden and was attended by over 300 persons including all the international experts on the subject. The PMAPS conferences fill a much-needed role in the power engineering community by providing a forum for engineers and scientists worldwide to interact around the common theme of power engineering decision problems under uncertainty. Recent developments in power engineering make that probabilistic methods will become more and more a necessity. Read more...

June 13, 2006 - STRI exhibitor at the ABB days

The ABB days were much appreciated as the years before. About 200 visitors from Sweden came to ABB Infocenter in Ludvika where STRI participated in the exhibition showing a collaboration project with Lemke diagnostics in Germany and VB Kraft in Ludvika. The project involves web-based monitoring and diagnostics. STRI has good experiences of the web-based technology from earlier projects, and is now used for web-based monitoring and diagnostics of hydro power generators. Read more...

March 16, 2006 - NIPPON KATAN CO, Ltd visit STRI

March 16, 2006 - NIPPON KATAN CO, Ltd visited STRI during February 20-22 and witnessed an ice test performed on three types of polymeric insulators. The ice was generated on the insulators in the climate chamber at STRI with a newly developed robot for spraying water. Three individual electrical tests were performed on each type of insulator. Read more...

The first meeting of new established CIGRÈ working group A3.21 "Aspects for the application of non-ceramic insulators to HV and MV apparatus" took place in Milan, Italy on March 2, 2006. STRI representative was Igor Gutman. The working group will create and publish in ELECTRA magazine the guidelines for the selection, testing and monitoring of HV equipment insulators. Read more...

February 23, 2006 - STRI chairs international working group on power quality

A number of new international working groups on power quality were intitiated last summer by CIGRE and CIRED. CIGRE and CIRED are world-wide platforms for the exchange of knowledge on electricity transmission and distribution, respectively. Both are best known for their bi-annual conferences. STRI was invited by CIGRE to convene and chair one of these working groups: the one with the cryptical name: C4.110. The objective of this working group is to describe and classify the immunity of electrical installations against voltage dips. STRI's involvement in the working group is led by prof. Math Bollen and supported by Svenska Kraftnät and Vattenfall Eldistribution in Sweden and ABB Drives in Finland. Read more...

January 25, 2006 - NEPLAN® 5.3 was released in December, as the first NEPLAN version including Simpow Dynamic modules.

NEPLAN, developed by BCP Busarello+Cott+Partner Inc., is used to analyse, plan, optimize and manage power networks. Industrial and supply grids of all voltage levels, with any desired number of nodes, can be quickly and interactively entered, computed and evaluated. NEPLAN's modular concept allows the network planners to put together a planning tool specifically tailored to their own individual needs. NEPLAN is used worldwide in 90 countries by more than 650 companies and after the introduction of Simpow Dynamic modules, NEPLAN is now one of the most complete planning and optimization software on the market for calculation and analysis of networks from generation, through transmission and distribution to industry.

Read more about our offer to Simpow customers…

January 11, 2006 - STRI visited by technical delegation from China

STRI was visited January 9, by a technical delegation comprising of China Power Engineering Consulting Corporation (CPECC), China South Grid, Guangdong Power Grid, SWEPDI and CSEPDI (both design institutes). Dan Wikström, VD STRI, presented the resources for UHVDC testing. Read more...