Power Generation, Distribution & Protection . . . |
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Flame Free Burner
Burning natural gas in turbines to generate power creates noxious emissions. Using an adiabatic combustor that burns gas without flames could greatly reduce harmful pollutants. ScienceDaily reports on Middle East researchers using flameless oxidation to burn natural gas with a very limited oxygen supply at extremely high temperatures.
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Best Practices — Circuit Breaker Maintenance
Proper maintenance and operation of circuit breakers is crucial to any electrical transmission and distribution system. T&D World describes how the transmission division of Hydro-Québec TransÉnergie maintains circuit breakers through corrective, conditional, and systematic maintenance. Corrective and conditional maintenance are repair tasks, systematic maintenance is an inspection task.
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Faulty Connectors Cause Car Recall
Electrical connectors are often out-of-sight and out-of-mind. But according to MotorTrend, Chrysler is recalling 181,000 Chrysler Sebring and Dodge Avenger models built for the 2007-2008 model year because defective electrical connectors in the Tire Pressure Monitoring System are causing stalled engines, dead batteries, and failing cruise controls.
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Relay Powers Auto Accessories
After-market auto accessories often have high power requirements that can't be met by existing auto electrical systems. A patented universal design relay is designed to meet these needs by switching power up to 30A at 12VDC. Composites World reports that the relay can shorten accessory installation times up to 75%.
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6DF Inertial Measurement Unit Sensor
Honeywell Sensing and Control
Honeywell's 6DF (Degrees of Freedom) Inertial Measurement Unit sensor is a high-value product platform measuring dynamic motion/orientation of heavy duty vehicle equipment, increasing safety, productivity, stability, and operational capability. It provides 3D motion sensing by detecting changes in rotation and how fast the equipment is moving. View Honeywell's featured products.
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AC-DC and DC-DC Power
Supplies and Systems
Acopian
Acopian manufactures AC-DC and DC-DC power supplies consisting of single, dual, triple output, DC-DC converters, programmable, unregulated, switching, linear, wall mountable, DIN rail mountable, mini power supplies, power systems, redundant systems, rack mountable, and high voltage power supplies. Ships within three days. Every voltage from 0 V to 30 kV and up to 1200 W.
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10 Million Timers and Controls
Ready in Two Days Max
ABB Low Voltage Products & Systems
The fastest way to specify and receive control relays: timers, voltage, current, phase loss, level control, alternating, HVAC/R, vending. Leading USA supplier, reliable designs, 10-year warranty, support worldwide, and UL-CSA-CE-RoHS. Typical and hard to find functions included via ProgramaCube®. Designers, specifiers, mechanics, request a copy today.
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Custom Power Distribution Units (PDU)
Interact Power, Inc.
Interact Power, Inc., an engineering company that manufactures COTS Rack Mount AC & DC Power Distribution Equipment, specializes in the design and manufacture of ruggedized custom PDU's. Single phase (120V and 230V) and three phase (120/208V and 400-415V) power units are also available.
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Cutting Through RFID Hype
It's often hard to find a dissenting voice amid the RFID hype, but many retailers and consumer goods suppliers currently see more RFID obstacles than benefits. These suppliers see insufficient return on investment as a prohibitive obstacle to RFID implementation. Most feel it will remain an obstacle for at least seven years.
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Scientists Build Molecular Organic Resistor
Most microelectronics devices are built from semiconductor compounds, but many think future devices will be made from complex organic molecules. ScienceDaily reports a key step down that path, a molecular resistor. It is built by depositing a single layer of carbon atom chains in tiny 100 nanometer deep wells on a silicon substrate.
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Consumer Products Propel MEMS Market
MEMS-based semiconductor sensors and actuators are rapidly moving from automotive apps to consumer products like video game controllers and cell phones. Experts predict annual growth of 19%. EE Times reports that MEMS-based semiconductor sensor and actuator sales will reach $9.7 billion in five years, up from $4.1 billion in 2007.
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Microresonators Replace Quartz Crystals
Quartz crystals used to produce reference frequencies in digital circuits are relatively large, fixed-frequency, and not amenable to large-scale IC integration. A possible replacement is a silicon microresonator that vibrates at 4.51 gigahertz, the highest frequency ever recorded in a silicon device. It reaches high frequencies without compromising signal strength and stability.
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ABB Offers a Wide Range of Manual Motor Protectors
ABB Low Voltage Products & Systems
ABB offers a wide range of UL/CSA-listed Manual Motor Protectors (MMP) providing protection against overloads, short circuits, phase failure, and under voltage. ABB also offers a selection of UL/CSA listed Self-Protected (Type E) MMP. These devices eliminate the need for additional short-circuit protection in many applications. View details.
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PDU: Mobile Power Distribution Unit
LEA International
The PDU-120/208-200-3Y is a custom-designed mobile power distribution unit providing an unbonded AC power source selection with a load center supplying 60 amp three phase MS style outlet, seven 30 amp single phase GFCI protected NEMA-style outlets, and four 20 amp single phase GFCI protected NEMA-tyle outlets in a NEMA 3R aluminum enclosure.
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Careers & Commentary . . . | |
Re-Engineer Your Career
Dice
DiceEngineering.com offers thousands of high quality engineering jobs at top technology and engineering companies — jobs for Electrical Test Engineers, Board Level Designers, and Electronic Technicians.
At DiceEngineering.com, you can:
• Find jobs in your area of expertise
• Post your resume and let employers find you
Search now.
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Small Raises for Nanotech
Sluggish economic growth means smaller raises, even in hot areas like Nanotech and MEMS. Nanotech applications in fuel cell development and battery storage are fueling growth, but overall commercialization has been slow. Small Times' third-annual compensation survey finds flat or modestly growing compensation with less than 20% of respondents receiving raises of 5% or more. Nearly 56% of respondents were from the U.S. or Canada, with the balance spread across 52 other countries.
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Tail Lights Denote Deceleration
Because brake lights are only on/off, you don't know how quickly cars in front of you are stopping. Wouldn't it be nice to also know how fast cars in front of you are slowing? ISA reports on a new type of intelligent brake lighting system that changes color based on the rate of deceleration. Under hard breaking, additional lights flash.
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Share Your Thoughts . . . Join a Conversation About This Month's Topic...
Are Electric Cars Practical
All electric car manufacturers are missing production dates and running into major technical roadblocks. Will electric cars ever be practical, or will other technologies dominate the low emissions vehicle market?
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