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PracTest™ 2006 - Multiple Interactive Practice Tests Assist in Preparation for the Four NERC Operator Certification Examinations
PracTest™ 2006 is the fourth generation of Siemens Power Transmission & Distribution, Inc., Power Technologies International's (Siemens PTI) computer-based training tools designed specifically to assist individuals in preparing for the North American Electric Reliability Council (NERC) Certification Exams. The PracTest™ 2006 series offers web-based training that helps operators build confidence in test taking and gain experience answering questions like those found on the NERC Certification Exams. PracTest™ 2006 is especially useful for power system operators and related operations staff in the U.S., Canada, and Mexico who are required to certify or re-certify by passing a NERC Certification Exam in their specific area of credential. For the complete article, click below.
Virtual Power Plants: Basic Requirements and Experience in Practice The aim of the European Community is to increase the quota of the renewables energy sources from 14% to 22% as well as doubling the share of heat and power cogeneration (CHP) on the total energy production from 9 to 18% by 2010 to achieve environmental protection and resource saving. However, the output of most renewable energy sources depends on meteorological conditions; the electrical output of CHP is driven by the heat demand, which also depends on the weather. To cover 40% of the yearly energy production the installed power of dispersed and renewable energy resources (DER) will exceed 60% of the peak load. Their daily contribution to the actual power coverage will vary from small shares up to 120% (in low load and heavy wind situations). Such a significant impact requests a sustainable restructuring of the operation practice in distribution systems. For economical reasons reserve power centrally provided to compensate intermittent DER output has to be minimised. Therefore, dedicated distribution areas with a significant mix of different DER, storage units and demand control facilities have to provide the features of "virtual power plants" that show similar behaviour like larger central units. Power exchange profiles of these balanced supply areas with higher level networks are planned in advance and the adherence to the schedules is supervised on-line by operational means. The basic functionality for it is provided by a decentralised energy management system (DEMS).
Innovative information, communication and automation technologies have to be established for monitoring and control of a large number of units on generation and on demand side. The basic requirements for this enhancement are considered in this paper. Experiences in practice gained so far with this concept in a German demonstration project are demonstrated in detail.
Siemens PTI Supplies Consulting Services for First Distribution Spot Network System Installations in Korea Korea Electric Power Corporation (KEPCO) supplies a very important government site in the Seoul area, where reliability of service is of great importance. To meet the reliability requirements, multiple low-voltage spot networks were selected to replace the original system serving the site. At the time the decision was made, there were no low-voltage spot networks in Korea. Korea Power Engineering Company (KOPEC), the contractor for the project, selected Power Technologies to work with them on the design, equipment selection, protection, and startup of the spot network systems at the special site. For the complete article, click below.
Distribution Network Planning for Mumbai The Indian utility Reliance Energy Ltd. (REL) operates the power supply for its Mumbai supply area with 1200 MW peak load by 220/33/22/11 kV networks. On the distribution level with more than 4000 distribution substations medium to low voltage the supply situation was characterized by high losses and frequent interruptions. The network had grown over years and some replacement works as well as expansion work to meet the load growth were urgently necessary. At this stage in 2003 the management decided to carry out a major system study for network optimisation, distribution automation and automatic meter reading together with Siemens in order to optimise the upcoming investments and to define the priorities. The paper shows the approach of network optimization with the identification of weak points in the existing network as well as the selection of the target network structure and its verification with principle networks and concrete modeling in Mumbai area. For the complete article, click below.
The Energy Policy Act of 2005 - How Siemens PTI Can Help You Manage it's Impacts The Energy Policy Act of 2005 takes aim at the future development of the entire nation's electrical power system. While the Act itself uses the tools of tax policy and regulation to achieve its results, the way the legislation is crafted can also be seen through a different set of lenses: a push for new technologies and relief of transmission system stress. With the major Northeast blackout still fresh in legislators' minds, the need to respond to emissions reduction expectations not settled, and the high cost of fossil fuels causing economic angst, the Act seeks to move the country toward a new view of the supply and use of electricity, and its reliable delivery. For the complete article, click below.
Siemens PTI Educational Programs Siemens PTI offers training programs addressing all aspects of power system engineering, including: generation, transmission, distribution and industrial/commercial utilization. Our programs are developed and taught by real world experienced staff engineers with advanced engineering degrees complemented by first-hand experience solving power systems problems throughout the world. We are also uniquely able to provide insight into future software product developments, meet the developers and provide direct feedback from the course to our software development process – no other education provider can offer this! To view upcoming courses, click the link below.
Contact Us For more information about Siemens PTI including our world-standard analytical software programs and professional education in power systems engineering, please visit our website or contact us at 1-518-395-5000.
Disclaimer This information is provided freely as a courtesy to our customer base to make them aware of industry trends and issues associated with power systems analysis. There is no warranty, suitability of purpose, implied or expressed in the content of this news letter. Neither Siemens AG, Siemens Power Transmission and Distribution, Inc. nor Siemens PTI assumes liability of any kind associated with the above content.
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