Cigre Session 2012 – The forum for electrial innovation

Now in its 44th edition, the CIGRE Session assemble more than 3000 senior executives, experts and specialists, from the worldwide Power Industry, to enhance their knowledge, to discuss new developments and innovations, and to network.
The CIGRE Session provides a unique opportunity to listen to contributions from international senior executives as well as experts and specialists through official presentations, panel discussions, technical meetings and poster sessions. The Session also offers a social program starting with a welcome drink which includes daily coffee breaks to engage further discussions in a relaxed atmosphere.

In parallel of the Session, a Technical Exhibition is being held in the same location on levels 2 and 3. The exhibition offers the opportunity to all visitors, including delegates, to discover new services, tools, equipment and materials as well as the most advanced technologies in the field of power systems.

The CIGRE Session and its Technical Exhibition bring together around 6000 senior executives, engineers and experts from the worlwide Power Industry.

Main themes will include

• Eco design of equipment
• Maintenance, refurbishment and life time of equipment
• Real time monitoring of equipment and systems
• Development of DC solutions
• Coordination between TSOs
• Public acceptance of equipment
• Integration of renewable
• Active distribution systems
• Information systems

4 main strategic directions for CIGRE technical activities are

• The Electrical Power System of the Future: super grids, smart grids…
• Making best use of the existing power system
• Focus on environment and sustainability
• Communication on power system issues to the audience

 

August 26 to 31, 2012

Paris, France (Palais des Congrès)

Registration online

Member: € 800
Non Member: € 990
Early bird rate until April 27th

New Technologies for Maintenance and Monitoring Systems of Insulated Cable – Presentation at International Workshop on Insulated Cables, São Paulo, Brazil

LIOS Technology GmbH- Linear Optical Sensors is pleased to invite you to attend the conference “ Redes Subterraneas De Energia Electrica 2011 ”, taking place in São Paulo, Brazil.

The Brazilian National Study Committee of Cigré B1 – Insulated Cables – is going to promote an International Workshop on Insulated Cables “ Workshop Internacional Sobre Cablos Eletricos ” , this year in São Paulo, Brazil.

The workshop taking place 20 – 22 June 2011, will be composed of short tutorials with international specialists on the following subjects:

• State of the art of technologies for maintenance of underground transmission lines (138 kV and above). The preferential methodologies that will be focused will be: measurement of partial discharges in field, detection and localization of small oil leakages in OF cables, and other maintenance edge technologies.
• Monitoring of underground transmission lines in real time: distributed temperature, current capacity, partial discharge, etc.
• Methods of calculation of magnetic fields of underground transmission lines and mitigation of magnetic fields generated by underground facilities.
• New technologies for high voltage cables and accessories: high-temperature superconductors, hybrid joints, Y joints, “plug in” joints and terminations.

LIOS Technology is participating with two tutorials captioned “New Technologies for Maintenance and Monitoring Systems of Insulated Cables” (Novas Tecnologias De Manutencao E Sistemas De Monitoramento De Cablos Isolados De AT) focusing on new trends for real time condition monitoring of insulated high voltage cables. Theoretical backgrounds as well as hands-on experience of recent projects serve as a base for interesting discussions with the Brazilian specialists on insulated cables.

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NOVAS TECNOLOGIAS DE MANUTENÇÃO E SISTEMAS DE MONITORAMENTO DE CABOS ISOLADOS DE AT Landry Molimbi, Key Account Manager, LIOS TECHNOLOGY, ESTADOS UNIDOS DA AMÉRICA	pdf 1,4 Mb

NOVAS TECNOLOGIAS DE MANUTENÇÃO E SISTEMAS DE MONITORAMENTO DE CABOS ISOLADOS DE AT Landry Molimbi, Key Account Manager, LIOS TECHNOLOGY, ESTADOS UNIDOS DA AMÉRICA	pdf 1,2 Mb

Click for further information on Workshop Internacional Sobre Cablos Eletricos

Case Studies for Industrial Distributed Temperature Sensing in Electrical Transmission and Distribution Systems

LIOS Technology is actively deploying its DTS sensor technology in various industrial applications and has already equipped successfully more than 2000 permanent system installations worldwide. Today we highlight some projects in Power Cable and Transmission Line Monitoring in the following case studies.

Industrial Application: High Voltage Power Cable Monitoring – Smartgrid

		Beijing: Long Distance Cable Temperature Monitoring System for the Olympic City 2008 Beijing This project was the premiere of a successful cooperation between Brugg Cables and LIOS Technology. Both partners are currently developing further projects for power cable monitoring even with integrated dynamic rating systems (RTTR).

		Burbo Offshore Windfarm – Distributed Temperature Monitoring of Long Distance Submarine Cables Distributed temperature sensing (DTS) of long distance power cables is shown to provide valuable information for cable design optimisation and proper operation of wind farms. The long range sensing is enabled by using the Raman-OFDR (optical frequency domain reflectometry) technology in single-mode fibres. Raman-OFDR uses a modulated continuous wave laser for detection. The low peak power minimizes stimulated Raman-scattering in single-mode fibres making accurate temperature sensing over long distances feasible.

		Graz: Reliable Energy Supply for Graz, Austria The new cable installation is one of the city’s main transmission lines and is heavily loaded. In order to optimize the transmission performance and to guarantee its secure reliability, the cable installation has been equipped with large scale cross-bonding systems at its sheath. In addition, by the help of the LIOS temperature monitoring system (DTS), the level of backup capacity can be assessed.

Real-Time Cable Thermal Rating (RTTR) went on-line at a tunnel near Stockholm, Sweden In October 2006 the commissioning of the integrated condition monitoring system (CMS) for real-time monitoring of cables was successfully completed. Together with a Distributed Temperature Sensor (DTS) a parallel run of cables installed in a tunnel near Stockholm (Sweden) is being continuously rated by RTTR.

Middle East Electricity 2011 is Open – The Power Behind The Middle East Energy Industry

HH Sheikh Ahmed bin Saeed Al Maktoum, President, Dubai Civil Aviation Authority, accompanied by HE Saeed Mohammad Al Tayer, Managing Director and CEO, Dubai Electricity and Water Authority, today opened Middle East Electricity 2011. The show, which is the region’s largest trade show for the power and energy sector, hosted the global launch of an important new integrated water extraction and distribution solution from British firm Lister Petter. Middle East Electricity 2011 is expecting a trade visitor attendance of over 50,000 and has confirmed that all available exhibition space has been sold. In total, over 1,000 exhibitors from 58 countries covering 45,000 square metres of exhibition space are participating this year.

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Highest DTS Installation Completed in Chile

LIOS Technology has completed a power cable monitoring project at a South American mining facility of Codelco in Chile. The Korean made 220 kV, 630 mm ² XLPE high voltage cable system includes  fibre optics in metal tube (FIMT) and supplies pumps, SAG mills (Semi-Autogenous Grinding) and other grinding equipment.

The Distributed Temperature Sensing (DTS) condition monitoring system is installed at the control room at 3500 m above sea level providing continuous thermal assessment of the highly loaded power circuit. Among LIOS Technology’s more than 2000 permanent DTS installations this is certainly the one at highest altitude.

Read more:

	Impressive track record of more than 2000 installations in permanent operation
	Smart Grid: Real time ampacity predictions of power cable and aerial line installations
	Distributed temperature monitoring of power cables

10 Tips for Electric Utilities to Implement Condition Monitoring Successfully

Real time condition monitoring has become a well accepted tool for thermal assessment and accurate rating of transmission and distribution assets. However, the use of fibre optics as sensors for distributed temperature sensing (DTS) is a rather complex technology with many parameters to consider.

1. Selecting the Right Fibre
   For measurement ranges of up to some 18 km the GI 50/125 multimode fibre typically provides the best distributed temperature measurement performance and allows deployments of less expensive multimode DTS systems. For longer ranges of more than 20 km singlemode fibres compliant to ITU-T G.652.C or D enable distributed temperature sensing even for applications like subsea cables.
2. Long Term Performing Fibre
   Especially multimode fibres are available in different qualities. Besides attenuation limits the bandwidth has to be specified to > 500 or even >1000 MHz*km @ 1300 nm as it is important to achieve measurements with good spatial resolution also from remote distances. In order to ensure long term service life of the fibre it is recommended to select phosphorous free qualities only. A securely embedded fibre within the high voltage power cable in form a FIMT – fibre in metal tube – prevents damages in course of cable laying and delivers superior temperature information due to its proximity to the conductor.
3. Spatial Resolution at Most Remote Distances
   The spatial resolution along the entire fibre length shall be 1.5 m or better. As the spatial resolution degrades with a function of distance with some DTS technologies the actual spatial resolution at the most remote distance shall be indicated.
4. 24/7 Operation
   DTS equipment shall be powered directly by secure substation DC supply, so even critical moments during mains outages are covered by condition monitoring. The DTS system shall operate independently from any kind of PC based system; Windows operating systems shall be solely used for data visualisation purposes. Equipment based on Windows operating systems drop statistically to MTBF ratings below 12 months.
5. Direct Link to SCADA
   Condition monitoring data shall be available at real time, so the DTS shall be capable to send its measurements and derived events directly to the operator’s SCADA or overall management system using protocols meeting substation standards based on IEC or DNP.
6. Reliable DTS Equipment with Proven Track Record
   Reliability and long lifetime are essential for investment goods like condition monitoring systems. The DTS laser diode and other key components shall be tested according to the Telecordia standard GR-468 or similar with medium lifetimes >25 years. The mean-time-between-failures (MTBF) rating of the DTS shall be higher than 25 years and based on a proven track record. Manufactures with ISO 9001 and ISO 14001 certification are recommended.
7. Preference for Single End
   Known from the early days of DTS systems the double ended or loop fibre set up is still sometimes requested today. However, latest DTS systems achieve measurements with sufficient temperature and spatial resolution at fast cycle times even at single ended fibres. The single ended measurement makes a more economic use of the DTS (longer range coverage, less channels occupied) and is the recommended operation mode for typical power cable monitoring installations.
8. Ampacity Predictions by RTTR
   Real Time Thermal Rating (RTTR) removes all uncertainty left by the DTS measurement. The power cable’s sheath temperature measured by the DTS gives a good idea of the temperature of conductor, but unless an accurate model for the conductor is provided there will be some uncertainty left. Sophisticated RTTR systems cover apart from steady state also the more critical transient operations based on IEC 60853 for this calculation and provide trustable ampacity predictions.
9. The Software Speaks Your Mother Tongue
   The DTS operation software shall be user friendly and available in the native language of the operator. This helps to prevent misunderstandings and encourages staff to use the system with pleasure.
10. More than Temperature
    Real time thermal assessment of the T & D grid is a powerful tool that allows accurate rating and ensures save and stable grid operation. By adding other real time diagnostics (i.e. partial discharge), failure uncertainty is reduced and maintenance procedures can be optimized. Aim for an integrated Global Condition Monitoring solution.

Siemens, FGC To Upgrade Russian Power Grids

Siemens and Russian grid operator Federal Grid Company (FGC) have signed a strategic cooperation agreement to upgrade power grids in Russia.

As per the agreement, new Siemens technologies such as low-loss high-voltage DC transmission or smart grids will be implemented on FGC objects. Furthermore, production of electro technical Siemens’ equipment in Russia and service and reconstruction of installed Siemens equipment on power facilities of FGC are part of the agreement.

Udo Niehage, CEO of power transmission division at Siemens Energy, said: “The planned modernization of the Russian power grid will raise the good relationship we have enjoyed with the grid operator FGC over many years to a new level.”

Siemens said that the companies want to work together to optimize efficiency-enhancing technologies for the Russian power grid and ensure that they are then put to use. An additional goal is the expansion of local production facilities for modern systems and equipment such as power transformers, high-voltage switching devices and medium-voltage switchgear.

FGC, which owns approximately 118,000km Russian long-distance power grid, has unveiled plans to invest EUR12bn from 2010 to 2012 in its development.

(via EBR)

• Russia Ready for Modernising its Electrical Distribution Network – Global Condition Monitoring Presented at MRSK Conference
• Essential for Smart Grid: Distributed Temperature Sensing for Real Time Power Cable and Overhead Line Monitoring

Condition Monitoring of high voltage cables: Turning information into extra capacity

Continuous and cost-effective monitoring of the electric transmission and distribution grid is the essential success factor of Smart Grid implementations. Increasing demand for power is forcing power utilities to load power cables to their physical limit, and safety and efficiency concerns are making it more and more critical for operators to understand what is happening thermally both inside the cables themselves, and along the cable route. During high-load conditions and under emergency circumstances (such as when a failure occurs in a segment of the grid and power must be shifted to other sections to compensate) it often becomes necessary to load cables right up to the limits permitted by the relevant regulations.

High voltage cable installation with attached fibre optic sensor cable in Moscow. Continuous and cost-effective monitoring of the electric transmission and distribution grid is the essential success factor of Smart Grid implementations.

In these operational situations, it must be ensured that maximum temperature limits are not exceeded.

LIOS Technology GmbH (www.lios-tech.com) is the global leader in the development and supply of state of the art frequency domain based Distributed Temperature Sensing systems. The LIOS DTS product line comprises a range of real-time fibre optic based linear temperature measuring devices. LIOS offers Real Time Thermal Rating/ Dynamic Cable Rating (RTTR) solutions for ampacity predictions of the power cable and overhead transmission line installation transparently integrated with its field proven DTS systems.

New Russian standard, the smart way – visit LIOS at CABEX’2010

LIOS Technology GmbH- Linear Optical Sensors is pleased to invite you to attend CABEX’2010 – 9th International specialized exhibition for cables, wires, fastening hardware, and installation technologies, taking place March 16 – March 19, 2010 at the Pavilion 4, EcoCentre Sokolniki, Moscow.

Booth number: D1214

In cooperation with our partner Systec we proudly present continuous and cost-effective monitoring solutions for the electric transmission and distribution grid, which are the essential success factors of Smart Grid implementations.

The LIOS DTS product line comprises a range of real-time fibre optic based linear temperature measuring devices (Distributed Temperature Sensing, DTS). LIOS offers Real Time Thermal Rating/ Dynamic Cable Rating (RTTR/ DCR) solutions for ampacity predictions of the power cable and overhead transmission line installation transparently integrated with its field proven DTS systems.

We invite you to the world of Russian and international top technology trends for cables, wires, fastening hardware, testing means and methods, scientific research and elaborations, cables and wires mounting and installation technologies, standardization and certification of cabling and wiring and problems of ecological monitoring.

Monitoring System for Overhead Line Conductors. Meeting the demands of a changing power environment

Providing sufficient electrical power reliably requires ongoing monitoring of temperatures within overhead transmission lines that are more susceptible to atmospheric changes than buried cables.  Winds, direct sunshine, ambient temperature, rain, ice and snow all affect the temperature of exposed overhead lines and can dramatically impact load limits they are capable of carrying. The fibre optic monitoring system for overhead lines is an inexpensive and highly reliable method that enables real-time monitoring of an entire network or of selected critical spans.

The easy-to-install, low-maintenance system offers a multitude of advantages. By enabling dynamic analysis of network structure, it increases the overall safety and reliability of the grid. It facilitates applying dynamic reactions to transmission requests, resulting in more flexible capacity and revenue management in both the short and long term. And the potential for cost-savings is enormous: downtimes and blackouts can be avoided, and the need for new lines and upgrades (e.g. increasing the height of overhead transmission lines) can be greatly reduced.

Customers dynamically rating the critical spans of their overhead line system can also increase earnings by activating previously unused resources in existing power lines. Dynamic metering of grid capacity and maximized transmission capacity make it possible to respond quickly and dynamically to transmission requests. As new sources of energy are added to the grid, precise load predictions are possible and it is easier to react quickly to overload conditions.

With the help of dynamic network-structure analysis, temperature profile can be monitored over span fields and fittings, depending on the length of the sensor. Load parameters are bundled and transmitted to network control stations online, allowing for real time thermal rating – which means real time supervision of network capacity. This makes it possible to predict load precisely and to avoid wire fatigue caused by repeated high thermal loads. Because decisions based on thermal load often influence upgrading or installation of lines, this translates into better control of grid and wire conditions, as well as optimal sag control and line clearance without requiring new construction activities.