OEB-IAS Technical Meeting - High Resistance Grounded Power System

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Oakland East Bay IAS invites you to attend a Technical Meeting on Thursday, April 28, 2016

Speaker: Dev Paul, PE, Life Senior Member, IEEE 

The meeting will review the background history of high-resistance grounded (HRG) power systems. To minimize ground fault during a line-to-ground fault condition, it has been a common practice to use HRG power systems, both at low voltage and at medium voltage (MV). The criteria for designing HRG systems are very well known to the industry; however, the opinion of industry experts has been divided on limiting the use of HRG systems for MV systems to voltages of less than 4.16 kV and phase-ground fault currents of less than 10 A without clarifying that it applies to systems that require continuous operation upon first detecting line-to-ground fault, as it is now in the IEEE Std. 142 (Green Book) ”Recommended Practice for Grounding of Industrial and Commercial Power Systems”.Speaker also provides a conclusion based upon his approved I&CPS 2016 paper that industry needs to understand the concept of capacitive component of the single-phase-ground bolted fault in case of an HRG power system, where the direction of fault current is at 180 degrees to flow of capacitive current. This then leads to correction of eight figures in the Green Book.



  Date and Time

  Location

  Contact

  Registration



  • 611 Gregory Lane
  • Pleasant Hill, California
  • United States
  • Building: Zio Fraedos

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  • Please make reservations by April 26 by contacting Diosdado Hernandez via email: dhernand@ebmud.com  or telephone: (510) 287-1077

    The cost of dinner is $25 for IEEE members, $15 for student and retired members;

    $30 for non-members.

    Upcoming Meetings - Mark your Calendars:

    May 19, 2016 Motor Bus Transfer



  Speakers

Mr. Dev Paul PE of AECOM, Inc., IEEE

Topic:

High-Resistance Grounded Power system

The meeting will review the background history of HRG in power systems. To minimize ground fault during a line-to-ground fault condition, it has been a common practice to use high-resistance grounded (HRG) power systems, both at low voltage and at medium voltage (MV). The criteria for designing HRG systems are very well known to the industry; however, the opinion of industry experts has been divided on limiting the use of HRG systems for MV systems to voltages of less than 4.16 kV and phase-ground fault currents of less than 10 A without clarifying that it applies to systems that require continuous operation upon first detecting line-to-ground fault, as it is now in the Recommended Practice for Grounding of Industrial and Commercial Power Systems.

Biography:

Dev Paul (M’73--LSM’10) received the Master’s degree in electrical engineering from Punjab University, Chandigarh, India. He has more than 42 years of design, construction, and startup experience in various projects. He joined Kaiser Engineers, which ultimately became part of what is now AECOM, Oakland, CA, USA. He is the author of many technical papers published in the American Public Transportation Association and IEEE conference proceedings.

Address:California, United States





Agenda

No-host social at 5:30 pm; Presentation at 6:15pm; Dinner at 7:15 pm;

Presentation continues at 8:00 pm; Adjourn by 9:00 pm.