Stephen Cary

Stephen Cary

Mebane, North Carolina, United States
13K followers 500+ connections

About

Power Engineer with Research (Theoretical, Applied and Development) and Application…

Services

Articles by Stephen

  • IEEE Transactional Draft - 2 Phase

    IEEE Transactional Draft - 2 Phase

    Title: 2020-PCIC-0713 - Electrical Circuit Protection and Switchgear Standards - Arc Flash, Monitoring, and Relaying -…

  • IEEE PES Clearwater Training Draft

    IEEE PES Clearwater Training Draft

    Reference Potential Transformer for Relaying in Paper of PCIC - Fig 4 Abstract or Synopsis (Westinghouse algebraic…

  • Series Contacts- Lee, Dufornet & Cary

    Series Contacts- Lee, Dufornet & Cary

    Dr. Lee, D.

    3 Comments
  • Retrograde -Quadrature Axis Motion

    Retrograde -Quadrature Axis Motion

    If researcher measures the voltage drop or "flow" of power across a closed or open gap of a interrupting device or…

  • Vacuum Retrograde Motion

    Vacuum Retrograde Motion

    Dear Power Engineer purchasing Vacuum, while we know that Vacuum Interrupters works on opening, closing and to a…

    3 Comments

Activity

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Experience

  • Innovative Switch Solutions Inc

    Northeast

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  • -

    PA, TX, OH and NC

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  • -

    Houston and Pittsburgh

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    Houston, Texas Area

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    Cleveland/Akron, Ohio Area

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    Philadelphia, Cleveland and Pittsburgh

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    East Lansing

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    East Lansing Michigan

Education

Licenses & Certifications

  • GE OCE certified trainer Graphic

    GE OCE certified trainer

    GE

    Issued

Publications

Patents

  • Over-Current Protection Assembly

    US 20170062155

    Gaseous wiping or vacuum butt contact switch that commutate current from bridging contacts to number of contacts arranged in series. On closing the many series contact touch first (minimizing the weld damage from pre-arcing). Without the potential weld condition, the high energy operator mass, high wipe travel and long linkages, the contact movement of US20170062155 will have a high accuracy and repeatability of contact part using a regulated supply.

    The precision of the contact…

    Gaseous wiping or vacuum butt contact switch that commutate current from bridging contacts to number of contacts arranged in series. On closing the many series contact touch first (minimizing the weld damage from pre-arcing). Without the potential weld condition, the high energy operator mass, high wipe travel and long linkages, the contact movement of US20170062155 will have a high accuracy and repeatability of contact part using a regulated supply.

    The precision of the contact parting, low and consistent vapor pressures between contacts and low stray capacitance effect, means that external grading capacitors to maintain the interrupting rating can be eliminated.

    With switch openings in the +/- 1 ms range and +/- 1 ms signaling of traveling wave technology means the peak currents are reduced by up to 70%, and the total rms arcing reduced to less than 5% of that used conventional technology. Total interrupting time 1/2 cycle +1 ms. Total arcing time < 2 ms on each synchronized interrupter.

    Suitable for high endurance on low voltage direct current interruption, and advancing the current zero for alternating current systems (arc flash mitigation). Designed to mitigate welding behavior, current chopping, post zero current, re-ignition, and re-strike phenomena that exist with single butt vacuum contacts. The compact design, and lower arcing times means that SF6 volumes can be minimized by up to 95%. Switch is totally sealed for life to prevent a yearly designed leakage rate. At end of life, all the SF6 used in the switch will be recovered. The precision motion of low energy operator and contact travel makes it highly suitable for synchronized high voltage switching.

    See patent

Courses

  • Dale Carnegie

    Account Management

  • Miller Heiman

    Account Management

  • More than 15 week long product training classes - switchgear, controls, motor drive systems

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  • Schneider Electric Account Management

    Schneider Electric

  • Toshiba Legal

    Contracts and business

Projects

  • 1000 MVA Power Plant Auxiliary Switchgear - Magneblast to vacuum replacement - FP&L

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    Transfer switchgear upgrade on motor auxiliaries for 1000 MVA power plant.

    10 main and tie breakers rated for (2 x 50 MVA UAT) and (1 x 55 MVA ST) transformers
    5 kV and 7.2 / 4 kV bus voltages with main bus 3000/4000 A and 1200 A feeder (63 kA momentary)
    19 feeders (x4) with 300 Hp to 4500 Hp motors, 500 to 3000 kVA transformers
    Pollution control systems induced (ID) fans (4 x 4500 Hp) and force draft (FD) fans (4 x 2500 Hp)
    Main turbine pumps, cooling, oil, circulation…

    Transfer switchgear upgrade on motor auxiliaries for 1000 MVA power plant.

    10 main and tie breakers rated for (2 x 50 MVA UAT) and (1 x 55 MVA ST) transformers
    5 kV and 7.2 / 4 kV bus voltages with main bus 3000/4000 A and 1200 A feeder (63 kA momentary)
    19 feeders (x4) with 300 Hp to 4500 Hp motors, 500 to 3000 kVA transformers
    Pollution control systems induced (ID) fans (4 x 4500 Hp) and force draft (FD) fans (4 x 2500 Hp)
    Main turbine pumps, cooling, oil, circulation, booster, gas injection and condensation pumps
    Total bus 100,000+ Hp and 155 MVA of auxiliary transformers

  • 15 kV 1200 A 40 kA - GE Power Vac Retro-fit replacement, SECO Gear, G&T, SECO Vac, SECO Gear, and Limit Amp, for Utility - Industrial applications

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    Replacement for GE Power Vac RMF Cu Bi and limiter using SECO Vac Cu Cr AMF w/o limiter
    GE SECO Vac replacement for GE Load Interrupter Switch (LIS) Breaker Master Plus
    Ground and Test Device for Switchgear
    SECO Gear - The first major switchgear launch in North America in last 30 years
    Limit Amp - 420 A design with new fuse
    Spectra - switchboard and bus upgrades

  • 2 MW to 5 MW drive motor packages - Shell Mars B offshore Oil Platforms

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    Shell Offshore Mars B Platiform -built New Orleans and Houston for use in Gulf - 2 MW to 5 MW, electrical, motors and drive systems for pumps and compressors.

  • 2 x 12 MW Siemens First LNG plant in North America - Elliott Turbo for Shell Sakhalin Island (study for 80 MW)

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    10 MW motor, drives, controls and switchgear - helper starter motor for turbo compressor and GE gas mechanical turbine . - electrics in excess of $10 million

  • 25 MW Synchronous Motor and Excitation - Direct Replacement -CEPSA Chemical Plant - Toshiba, TMEIC, Siemens DEMAG

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    Drop in replacement of ALSTOM 25 MW Syn motor and exciter package, Siemens DEMAG compressor and axial gas expander (8 MW). Compressor connected to drive end and axial gas turbine connected to the non drive end. 40 MVA transformer and ABB Switchgear connected to system from 1 kilometer of cabling.

  • Ford Data Center, Eastern Correctional Institution (ECI), BASF and Florida Power & Light

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    Early multi-million project for introduction of GE SECO IEEE Switchgear to North America
    Analysis of insulations on flammability, tracking, smoke and toxicity
    Interrupter, mechanism, bus, switchgear testing and evaluations including UL

  • Progressive Insurance - Large Data Centers

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    Support service sales activities across entire Progressive Insurance data centers and call facilities. Transformers, paralleling switchgear, bus ducts, UPS, control and complete start up with Schneider Electric.

  • Westinghouse AP 1000 Power Plant

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    Toshiba - Motor pumps, fans and auxiliaries for the Auxiliary power for Toshiba Westinghouse AP 1000
    Eaton Corporation - Switchgear for AP 1000

  • Wheeling Pittsburgh Steel Corporation - Hot Mill Power Upgrade

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    Wheeling Pittsburgh Steel upgraded a 60" hot mill with high voltage substation (138 kV circuit breakers), medium voltage circuit breakers (59 x 15 kV switchgear), Relaying and Drive System Automations (stand motors and drive for gauge control) on the hot mill. Siemens provide complete package.

Honors & Awards

  • Outstanding contribution to the development of IEEE Standard C37.010-2016

    IEEE Power Energy Society - Switchgear Committee

    For development of IEEE Application Guide for AC High-Voltage Circuit Breakers greater than 1000 volts

  • Outstanding contributions to the development of IEEE C37.12 - 2018

    IEEE Power Energy Society - Switchgear Committee

    Development of IEEE Guide for Specifications of High Voltage Circuit Breakers (over 1000 volts)

  • Outstanding contribution to the development of IEEE Standard C37.59-2018

    IEEE Power Engineer Society - Switchgear Committee

    For contribution to the Standard Requirements for Conversion of Power Switchgear Equipment

  • Innovation Funding Award

    GE Industrial Solutions (now ABB)

    $10,000 award for development of new switchgear structure

  • Siemens Gold (1), Silver (1) and Bronze (14) awards for sales performance

    Siemens Energy & Automation

    Bronze award for 110% of quota, Silver award for highest in region, and Gold award for highest in the nation - from Siemens during years 1985 to 2014

  • AY AY OH Award

    Toshiba International

    Toshiba International Corporation - For sales and marketing effort on Toshiba International largest motor and synchronous exciter installation - 25,000 KW . 2005 to 2010

Organizations

  • Dr. Foss - Free Shear Flow Lab and Ti Tau Sigma honory adviser

    Programming Engineer and Laboratory Assistant

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    Recruited by Dr. John Foss (https://www.egr.msu.edu/people/profile/foss) for employment in his laboratory. Modeled air fluid flow across surfaces of wind tunnel at the Free Shear Flow laboratory at Michigan State University. For use with equipment electrical interruption and gas flows. While I liked the numbers associated with computer science, math, mechanical and engineering writing modeling code - would not be my final career. I wanted to be a engineering generalist - the great…

    Recruited by Dr. John Foss (https://www.egr.msu.edu/people/profile/foss) for employment in his laboratory. Modeled air fluid flow across surfaces of wind tunnel at the Free Shear Flow laboratory at Michigan State University. For use with equipment electrical interruption and gas flows. While I liked the numbers associated with computer science, math, mechanical and engineering writing modeling code - would not be my final career. I wanted to be a engineering generalist - the great everything and best at nothing. Colors and visualizing decaying graphical mathematics was my engineering gift, but I saw no value in it - despite recognizing the Apple graphical interface was far superior than IBM’s PC linked to the mainframe.

  • Electronic Data Systems (EDS) / General Motors Computer Applications Department

    Programming Engineer

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    Modeled electrical and mechanical systems . Program was Boeing NASA funded and purchased by GM, state of art 3 D modeling existed in the early 80’s. Unable to grasp symmetrical equations for my electrical engineering, I discovered the accuracy of the algebraic method using the most powerful IBM mainframe available. My failure of symmetrical equations had been solved and due to uncertainty of how my methods would be received- I told the my professors I solved it. Not being aware of my…

    Modeled electrical and mechanical systems . Program was Boeing NASA funded and purchased by GM, state of art 3 D modeling existed in the early 80’s. Unable to grasp symmetrical equations for my electrical engineering, I discovered the accuracy of the algebraic method using the most powerful IBM mainframe available. My failure of symmetrical equations had been solved and due to uncertainty of how my methods would be received- I told the my professors I solved it. Not being aware of my access nor the program the Professors were mystified. After writing a 10 page paper on the topics, the Professor called my computer, Physics and EE instructors. While I only marginally made it to Pi Tau Sigma honors society, after reviewing the qualification and interviewing the professors - Dr. Foss attempted a second time to higher me back, which briefly did to assist Dr. Foss - who has been instrumental to my development, even up until 2011 when he started to move towards retirement.

  • IEEE PES Switchgear Committee - IEEE C37.04 Chair of WG - Working Group

    Chair of IEEE C37.04 - HV Circuit Breaker Ratings and Requirements

    https://standards.ieee.org/standard/C37_04-2018.html Member 2010, Secretary 2012-2014 and Chair 2014 - current Standard revised the 1999, to include Ratings (C37.04), Capacitor Switching and TRV Harmonization with IEC (C37.04 a and C37.04 b), Ratings C37.06 and NEMA SG-4, that included current transformer accuracy, grounding and other new requirements. Lower SF6 leakage rates, safety and many other items added.

  • IEEE PES Switchgear Committee - IEEE C37.09 WG Member

    Member - High Voltage Circuit Breaker Test Standard

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