Expanding Commitment to Ensure Reliability and Performance of Electric Transmission and Distribution Systems

LIOS Technology has a rich experience in applying its distributed temperature sensing systems to various industrial applications. Power cable monitoring projects at transmission and distribution levels are an essential part of our business. With more than 10 years of experience and more than 2500 DTS systems in permanent operation world wide LIOS Technology is in a unique position.
EN.SURE is LIOS’ continuous and cost-effective monitoring solution of the electric power transmission and distribution grid and is the key factor for a successful Smart Grid implementation.
Following a global trend also our customers in the USA are expanding their commitment to ensuring the reliability and performance of the transmission and distribution systems they operate. LIOS EN.SURE supports that commitment and is the flexible solution for underground high voltage cables, overhead transmission lines and submarine cables as well as for array cables within on and offshore wind farm installations.
Please find below some examples of recent EN.SURE installations in North America.
 
Utility in the Northwest of the USA, 115kV U/G transmission line

• 1 circuit of 115kV 2,500kcmil (i.e. 1,250mm²) Cu insulated (XLPE) cable of approximately 4km long
• 1  DTS monitoring system (4km, 1 channel, multimode 50/125µm) to monitor <1km at="" cable="" li="" of="" this="" time="">
• Fibre optic sensor cable ( metal free FRNC, 4 multimode fibres ) installed in a separate duct
• Direct DTS data interface with Virtual Machine for temperature data reading
• DTS commissioning in June 2012

 

 

 

 

 

 

 

 

 

 

 




PowerSouth in Andalusia, AL, USA

• 115kV Wolf Bay Crossing U/G transmission line
• 1 circuit of 115kV 2,500mm² enamelled Cu insulated (XLPE) cable of approximately 2km long
• 1 DTS monitoring system (2km, 6 channel, multimode 50/125µm) to monitor HDD cable route
• Fibre optic sensor cable ( FIMT, stainless steel tube, 2 multimode fibres ) embedded in the power cable sheath  (copper wire shielding, corrugated stainless steel sheath)
• Direct DTS data interface with PowerSouth Virtual Machine for temperature data reading
• DTS commissioning in June 2013

 


 
 
 
 
 
 
Utility in the Northeast of the USA, 230kV U/G transmission line

• 2 circuits of 230kV 3,000kcmil (i.e. 1,500mm²) Cu pipe-type (HPFF) route length approximately 10km long.
• 1 DTS monitoring system (10km, 8 channel, multimode 50/125µm) to monitor ~10km of cable
• Fibre optic sensor cable (HDPE underground, 2 multimode fibres) installed in separate duct with temperature trees (at each end) for ambient temperature readings
• Direct DTS data interface with enhanced visualization and  Real Time Thermal Rating (RTTR) with Energy Management System (EMS) via DNP3 protocol
• DTS/RTTR commissioning in May 2013

 

 

 

 

 

 

 

 

 

Cigre Session 2012: Join 6000 Executives and Experts from the Worldwide Power Industry in Paris

LIOS Technology is pleased to cordially invite you to attend the CIGRE Technical Exhibition in Paris:

International Council on Large Electric Systems Technical Exhibition LIOS booth 232

27 - 31 AUGUST 2012, Palais des Congres de Paris, Paris, France 

 
LIOS Technology introduces its new EN.SURE DTS generation for Distributed Temperature Monitoring of Energy Transmission and Distribution Systems.
LIOS EN.SURE offers exact dynamic cable rating based on the real time temperature measurements along the entire cable circuit.
One single EN.SURE evaluation unit provides fast temperature sensing profiles with high spatial resolution along the optical fibre routes with monitoring ranges up to 40km per channel. It is the first maintenance free DTS which comes without any moving parts like fans or shutters.
 
» Register online for CIGRE Session 44 (technical exhibition included)
» Register online for CIGRE Technical Exhibition 

 

International Workshop on Insulated Cables - in 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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	Distributed Temperature Sensing
	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

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.
Real Time Determination of Thermal Conditions along HV Power Cable Systems
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. In these operational situations, it must be ensured that maximum temperature limits are not exceeded. Due to the increasing complexity of the thermal relationships along cable routes, the ability to continuously measure the temperatures along the cable has proven invaluable, providing critical operational data to engineers, especially in the case of a system faults such as a hot spots that could result in cable failure if they are not corrected.
The intrinsic temperature measuring system DTS based on LIOS Technology’s design, with fibre optic sensors either installed within the power cable’s cross section (FIMT – Fibre in metal tube ) or attached to the exterior of the cable, makes it possible to record the temperature profile along an entire cable route continuously, and to pinpoint the exact location of hot spots within a metre. Since the measuring principle employed is purely optical, the presence of electromagnetic influences, which can result in false sensor signals in other technologies, does not affect the DTS unit.
Distributed temperature sensing is a powerful tool that allows the accurate rating of high voltage power cables in real time, and provides the following operating benefits:

• Reduce power outages or blackouts
• Ensure continuity of supply
• Activate hidden capacity reserves of existing assets
• React quickly to overload conditions
• Conduct precisely and in real-time load predictions as new sources of energy are added to the grid

The temperature profile data, in any desired form or format, can be transmitted via standard interfaces from systems of the OTS product series as required, and be either displayed or further processed by PC, PLC or SCADA systems. As a result of the increasing demands placed on the ability to network and integrate measuring systems into management systems, LIOS offers network components that summarise DTS data from several DTS units and transport or convert it to the required network standards and protocols like Modbus, DNP3, IEC60870-5 or XML based data interfaces.
Dynamic Cable Rating
LIOS also provides an integrated Real Time Thermal Rating (RTTR) package via a well defined interface between its DTS data visualisation software and a commercialised – the industry’s de facto standard – cable ampacity program based on IEC standardised methods (mainly IEC 60287 and IEC 60853). Dynamic rating software couples the accurate temperature data provided by the DTS unit to predictive functions of cable ratings, providing engineers with even more information upon which they can base distribution and load decisions. The result is dramatically more efficient transmission of power, fewer “brown-outs”, and decreased operating costs.

Electricity for all, the smart way – visit LIOS at Power Indonesia 2009

LIOS Technology GmbH- Linear Optical Sensors is pleased to invite you to attend Power Indonesia 2009 - the 14th International Power Generation, Transmission and Distribution Exhibition, taking place 14-17 October at the Jakarta International Expo, Kemayoran.

Booth number: A340

In cooperation with our partner Anugrah Mitra International & Anugrah Mira Nusantara 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.

The Electric Indonesia Series 2009 provides a one stop shop for the major elements in the development of the country's electrical sector. For power generation, transmission and distribution Power Indonesia is South East Asia‘s most comprehensive exhibition.
This year over 600 companies from 34 countries will participate showing the huge potential in Indonesia’s Power and Electric Industries. Regional & National Pavilions from Taiwan, Korea, Germany, Czech Republic, Spain, Italy, Singapore, UK, and China will showcase the latest technology and equipment to help meet the countries huge demand for additional power.
Under its vision "Electricity for all", the Government is currently planning to increase power generation by 35,000MW by 2015 at an investment of over US$40Billion.

We look forward to seeing you in Jakarta!

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	For more information on Power Indonesia 2009 click here
	Distributed temperature monitoring of power cables