Scorpion technology provides power for Prysmian mobile degasification units

Integrated power solutions company, Scorpion Power Systems, has provided six state-of-the-art generators to leading electrical cable producer, Prysmian, for six new mobile High Vacuum Cable Oil Degasification Plants, which are to be used to degasify cable electrical insulating oils.

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Previously, Prysmian had used a power take-off system to provide electrical power to the degasifier and ancillary equipment in each of the vehicles.

However, with the vehicles needing replacement and conscious that the power take-off systems were very noisy, Prysmian decided to look at alternative means of powering the degasification plants and thereby reducing the amount of noise produced by the vehicles.

The answer was a much quieter, stand-alone generator built into the back of the vehicle.

Having already worked with Scorpion Power Systems on previous projects, Principal Oil & Development Engineer, Nick Crane, knew that the company had the ability to work with him to meet his requirements. Scorpion’s engineers have customized an existing 30kVA diesel generator by modifying the doors, and removing the bund. Each generator is fitted with a key start module and includes electrical protection against over-heating and low oil pressure.

“Scorpion’s generators are robust for longevity, large enough to run the degasification and ancillary equipment but still maintain low noise levels”, said Nick Crane. “In addition, it’s a company with the ability to think outside the box, which was needed with this application.”

The high vacuum degasification vehicles will be used throughout the UK by Prysmian to provide quality oil for HV cabling systems.

Each mobile unit uses the generator to power up the degasifier, which circulates and degasifies the oil therefore improving its residual gas pressure and reducing its moisture level to ensure that the cable oil has good gas absorption characteristics and dielectric properties.

Edipower selects GE Ecomagination technology to comply with new emissions requirements

Edipower, a leading Italian generation company, has selected GE Energy’s ecomagination-certified gas turbine emissions control technology to meet regional greenhouse gas emissions standards at the company’s Sermide facility.

Edipower will achieve the new NOx emissions standards for combined-cycle power plants, the most aggressive in Europe, with the help of GE’s DLN 2.6+ system. Edipower provides nearly eight percent of Italy’s energy needs, generating 7700 MW of capacity annually, including 750 MW generated by renewable energy resources.

On 1 January, 2009, the region of Lombardy, Italy, enacted new standards limiting nitrous oxide (NOx) emissions to 30 mg /Nm3 as compared to present levels of 50 mg/Nm3, for a total emissions reduction of 40 per cent.

Edipower’s combined-cycle power plant in Sermide will meet the new standards with the installation of GE’s Dry Low NOx (DLN) 2.6+ system. By adding the DLN 2.6+ system to its Sermide facility, Edipower will limit its greenhouse gas emissions, such as NOx and carbon monoxide (CO), to below the 30 mg/Nm3 cap.

The DLN 2.6+ system also will reduce the minimum operating load levels for the gas turbines to 35 percent, improving the operating flexibility and increasing benefits to both the environment and project economics. “We chose to invest in GE Energy’s DLN 2.6+ technology to ensure that Edipower’s Sermide plant has more operating flexibility, reduced fuel consumption at lower loads and reduced emissions.

In 2009, Italy will have more stringent emission regulations and, with GE’s gas turbine emissions control technology, Sermide will meet those new environmental requirements,” said Paolo Gallo, chief executive officer, Edipower.

“Edipower has been a long-standing customer since its inception and it has once again turned to GE for its energy needs. GE Energy’s DLN 2.6+ technology will provide Edipower with the ability to generate energy more effectively with significant emissions reduction,” said Ricardo Cordoba, GE Energy’s president for Western Europe and North Africa.

GE will upgrade all three 9FA+e gas turbines operating at the Sermide facility with the advanced DLN 2.6+ combustion systems. To meet Edipower’s requirements for a short-cycle project, GE will perform each upgrade starting in parallel with a planned maintenance outage, thus requiring minimal additional stoppage time to the power plant’s production.

HPS expands energy-efficient transformer product offering

Hammond Power Solutions (HPS), a leading manufacturer of dry-type electrical transformers in North America, has expanded its energy-efficient transformer product offering to provide its customers with the broadest selection of energy-efficient transformers in the industry.

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HPS offers three standard series of energy-efficient transformers designed for use in a variety of applications. Designs include the use of phase shifting to maximize energy savings, improve the total power factor and provide high power quality.

Designated HPS Sentinel, HPS Synergy and HPS Centurion Series, these transformers meet the NEMA TP-1-2002 (U.S.) and C802.2 (Canada) energy efficiency standards at an efficiency range from 35 per cent to 65 per cent of rated linear or non-linear loads. HPS energy-efficient transformers are also EPAct/NRCan compliant.

Rated for 600 volts and below, HPS Sentinel and HPS SuperSentinel lines of transformers are designed for linear loads and are most frequently used for general load applications, such as commercial buildings that supply a variety of loads including lighting, heating, appliances and motorized machines. The HPS Sentinel and HPS

SuperSentinel lines can be ventilated, totally enclosed, or encapsulated, depending on application specifications.

The rugged HPS Synergy Series is a K-Factor distribution transformer designed to address harmonic related activity associated with non linear-loads. Caused by similar power electronics found in high concentrations, harmonic currents can substantially decrease transformer performance and lead to overheating, device malfunctions, telephone interference, equipment vibration and tripped breakers.

“Our energy-efficient transformers help our customers realize substantial power savings and lower their operating costs while reducing their impact on the environment,” said Ken Hermann, HPS Marketing Manager.

HPS transformers are comprised of the highest quality cores that contain nonaging fully processed silicon steel laminations, that are precision cut to close tolerances to eliminate burrs and interleaved to improve performance. Coils are available in either aluminum or copper and are precision wound to ensure electrical balance to minimize axial short-circuit forces.

To allow for easy field installation, HPS transformers are available with both high and low voltage terminal lug connectors. HPS utilizes superior insulation materials that meet UL standards to maximize temperature ratings. Regardless of voltage class, HPS transformers undergo a vacuum pressure polyester resin impregnation process to provide high dielectric strength and bonding. All HPS transformers are tested to ensure product quality and reliability.

Latest self-lubricating carbon graphite materials make debut

Metallized Carbon Corporation, a global leader in the manufacture of oil-free, self-lubricating carbon-graphite materials, offers its Metcar grades M-106 and M-400 resin impregnated carbon-graphite materials for mechanical parts that run submerged in liquids.

These materials replace oil-grease lubricated parts in submerged applications where oil-grease lubricants could dissolve, wash away, or contaminate the product being handled.

Operating at temperatures up to 260 ºC these materials are self-lubricating, non-galling, self-polishing, dimensionally stable, and high in compressive strength. Rubbing or sliding parts made from these materials provide low friction and long wear life.

These materials are chemically resistant to all liquids, except for extremely strong oxidizing acids and alkalis.

Metcar Grades M-400 and M-106 are ‘Recognized as Safe’ for food processing applications. They are extensively utilized for running submerged in beverages or liquefied foods such as potable water, milk, beer, soda, fruit juices, and pharmaceuticals.

These materials are impermeable to high-pressure liquids, preventing difficult-to-remove bacteria from growing within any available porosity. Resistant to high temperatures, the M-400 and M-106 can be effectively steam cleaned.