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How to optimize factory power distribution, use.

Design Systems' Electrical and Control Engineering Group, West Bloomfield, MI, has packaged a study that shows companies how to optimize power use--and improve efficiencies--through simple changes in connections and phasing. The study involves distribution of power within a large-scale manufacturing, process, or assembly facility that was built more than five years ago.

For proper loading, maximum efficiency, and lowest operational cost, the power connections must follow a logical design. Yet, as plants age, equipment is generally added and removed unmethodically; rarely do the original plans for power distribution figure into the connection of new equipment.

The purpose of the study is to review and document all power connections within the assigned area, define how each is phase-connected, evaluate any equipment to be added within the near future, and report whether power will be adequate to meet short-and long-term needs.

According to group manager Chaz Seremjian, specific issues the study will address include the optimum number and locations of buses and substations, along with detail items such as electrical interlocks on key equipment.

"Proper interlocks can mean the difference between a high incidence of unscheduled downtime, and none at all," says Mr Seremjian. He cites one example: "If multiple weld stations are connected to the same phase--a common occurrence--and several fire at once, the low voltage may cause either a production stoppage, or poor weld quality. The high draw would also cause a peak in utility use--a major contributor to higher demand rates.

"Conversely, with proper interlocks, weld stations on the same phase can be set to fire cycles apart, helping to eliminate both the peaks and the quality problems, with virtually no compromise of productivity.

"Another problem we saw recently," says Mr Seremjian, "was equally easy to solve. Two substations fed the same bus. The transformer percent impedance didn't match, which resulted in a substantial current draw when nothing was running. This also reduced the bus capacity by 20%."

For more information from Design Systems Inc, West Bloomfield, MI, circle 208.

Gearing Up! for tech transfer

Manufacturers who want to learn about advanced technology resources available to them through national governmental organizations and Great Lakes regional agencies and companies will want to mark Aug 25 and 26 on their calendars. Gearing Up! (which is not a trade show) will bring these resources together in a manufacturing forum at the Ryder Center of Saginaw Valley State University in Saginaw, MI.

Among those attending will be national organizations including government laboratories that until recently were restricted by law from working with private industry, universities, technology transfer centers, and state and local agencies. A partial listing includes Argonne National Laboratory, Dow Chemical, Dow Corning, EDS, GMI Engineering, Lawrence Livermore and Los Alamos national laboratories, NASA, NCMS, NIST, Oak Ridge, Sandia, and Wright Patterson.

Early enrollment is $25 per person. Contact: AMPM Marketing & Advertising, 1-800-530-9100. the exceptional quality of its personnel, particularly scientific and engineering."

KSL is benefiting from the influx of Russian emigres, because of the educational levels and experience that the ex-Soviet scientists and engineers bring with them. The company has gained other advantages from its location in Israel. The Israeli government and joint US-Israeli program includes 50% financial support for new developments; a reduced tax on profits, or a combination of tax benefits plus additional grants and loans for starting a new operation or expanding and existing one; and financial assistance in marketing.

KSL has received a number of awards and prizes for its pioneering work. One was won for development of a wire bonder micro-welding machine, another for development of the 797 wafer saw--an automatic silicon wafer dicing device.

For more information from Kulicke and Soffa, circle 207.
COPYRIGHT 1992 Nelson Publishing
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Copyright 1992 Gale, Cengage Learning. All rights reserved.

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Title Annotation:Design Systems Inc.'s Electrical and Engineering Group report
Publication:Tooling & Production
Date:Jul 1, 1992
Words:608
Previous Article:At NCMS meeting: three Cs needed for technology transfer.
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