The millions of passengers who use the Parisian and suburban public transport system daily will tell you that electricity is the driving force behind the system, but nearly everyone is unaware of the technical challenge of ensuring the continued supply of power to the network 24 hours a day, every day of the year. According to RATP* records there has never been a general power cut in the Paris Metro.
The large 1960's RATP*building houses one of four high voltage stations that, through a network system with seven other stations, provides the electrical power not only for the Metro, RER and tram systems but also for RATP*offices and workshops.
As one of RATP's basic rules is to provide a secure energy supply, two EDF supplies of 63,000 V are fed to the High Voltage circuit breakers at the Lamarck station. Both inputs supply a transformer to reduce the voltage to 15000V which, after being routed through the rectifiers, supply 1500V DC to feed the RER network and 750V DC for the tram and Metro networks. The two transformers, the circuit breakers and rectifiers have strategic roles to play in running the RER, tram and Metro networks. To back up this power supply system, a 1,500 kW electricity generator is ready to start at any time. This power supply ensures current is fed to safety equipment, escalators and lighting in the event of large-scale power failures. The electricity generator, an important backup power system, must be frequently started up to ensure its serviceability.
Pushing the limits of physical possibility is the greatest challenge facing technology. In addition to technical excellence, the economic aspect is taking on an increasingly important role. The machine construction market is continuously aiming for more compact, faster machines with higher capacity. Special packaging machines or machines for manufacturing PCBs are being constantly optimized to enhance their overall power density. In addition to mechanical components, electronic components that control the systems must also be consistently adapted.
There is an increasing demand for smaller sensors that offer the performance, speed, and precision of larger sensors. In addition to functionality, it should also be possible to integrate these sensors discretely into the machine.
UHF read/write heads offer a higher range than LF and HF read/write systems, since the UHF technology communicates in the far field using "detached" waves and the LF/HF systems work in the near field. The range can be varied by changing the antenna design and the transmitted power. In addition to the existing F117 UHF antenna with a range of up to 6 m, Pepperl+Fuchs now offer a very compact solution, the new F190 UHF, specifically tailored to applications in production technology and intralogistics where the read distance of the LF and HF systems is not sufficient.
The complex topic of explosion protection for process production plants requires profound knowledge and experience. Pepperl+Fuchs offers all this, along with reliable, high-class technology products and close support of individual projects, from first evaluation up to delivery of the final solution to the plant, ready for operation.
Tata Steel has installed two new modular platform systems in the UK, one at West Drayton Station, and the other at Langley Station. These modular systems provide a cost-efficient, quick way to design and install passenger platforms and can be customised with all types of surfaces and finishes. West Drayton was installed with only a weekend of traffic disruption, and Langley needed no traffic interruption.
(March 13, 2013) The new performance class category in optical sensor technology, the O500 series by Baumer, combines the most important properties that a sensor could offer: durability as well as safe and easy operation. The O500 series is setting new standards particularly due to the ease of operation.
Cambridge, UK – Datapaq presents temperature measurement systems for the electronics industry at the SMT Hybrid Packaging 2013 exhibition in Nuremberg, Germany, in Hall 7, at Stand 513. Reflow Tracker systems are used in reflow soldering processes as well as in wave, vapor phase, and selective soldering, and at rework stations. They help reduce reject rates and increase yield. Melting the solder with optimal energy consumption but without damaging the electrical components requires precise temperature control. The systems pass through SMT processes along with the printed circuit boards, providing data for real-time monitoring via radio, if required. Temperature profiles from up to twelve thermocouples per data logger can be displayed and analyzed with the accompanying software. User-friendly tools support analysis, oven setup, and the determination of the optimal oven recipe for simple as well as complex components.
Kennametal Inc., a world leader in providing innovative wear-resistant products and application engineering, is pleased to announce its new facility in Yatala near Brisbane, Australia, dedicated to providing the latest in wear solutions for Australia and the Asian region. The address is 22 Computer Road, Yatala, Queensland, Australia 4207, and the phone number is 61.7.3801.5844.
NORD DRIVESYSTEMS manufactures high-performance, cost-effective drive technology for the food and beverage industries that fulfills strict hygiene requirements. Especially developed for this area of industry, the drive manufacturer's microsite – http://food.nord.com – has now been optimized for mobile use (iPhone, Android smartphones, Blackberry etc.). An adapted layout ensures excellent readability and straightforward navigation. The dedicated microsite, which presents sector-specific solutions and products, provides quick access to all food industry suitable drive systems.