Utilities and system protection

 

Protective relaying work directly impacts system reliability.  In fact, you could say that it's the insurance policy for protecting the assets of a utility.  That’s why it’s vitally important that the consultant a utilities hires possesses the necessary expertise and judgment to make the right call, and can easily adopt the preferred standards and protection practices used at that utility.  Protective relaying is not something learned in a standard electrical engineering curriculum.  It takes years of practice to become competent. 
 

Expertise

Charles Mason aptly described protective relaying as both an art and science.  That’s because there is not a singular, scientifically-proven “best approach” to setting relays.  In fact, there occasionally are circumstances in which perfect coordination and protection simply cannot be achieved and the engineer is required to make a judgment call.  (Fortunately for our clients, Commonwealth's roots in the industry date back to 1888 and we have engineers with over 40 years in the business, so we bring a wealth of knowledge to client projects and have a proven track record of making the right call.) 
 

Insight

Modern digital relays are complex.  Each client will have unique features used, philosophy, settings criteria, and relay set up.  This “tribal knowledge,” developed over the years, may not even be known to all internal engineers.  We are helping clients to capture and document this knowledge, and providing a more rigorous, standardized format for presenting study results.  We also help translate this knowledge into standards that enable consistent relay setting by utility employees or consultants.
 
Software
There are two major protection software programs in the electric utility transmission system arena – CAPE and ASPEN OneLiner^TM.  With nearly a 2-to-1 utility market share, ASPEN is considered quite user-friendly. CAPE is more robust in modeling capability and running system simulations, but requires a steep learning curve and is more difficult to learn compared with ASPEN.  Commonwealth is one of a very few consultants highly experienced with both.  
 

Here are the Top 10 reasons to connect with Commonwealth for system protection services:

 

1)     We can be a seamless extension of your staff, following your utility’s philosophy and settings criteria.

2)     You get the benefit of our extensive experience with CAPE & ASPEN.

3)     You can trust us to review your settings or utility practices for NERC compliance.

4)     We can perform your system wide upgrades, including design work, updating protection standards, and relay studies and analysis to provide the relay settings.

5)     You can address the increasingly important arc flash issues by using the automated process we developed in CAPE to efficiently perform calculations in the utility environment.

6)     You can tap into our experience with analyzing event files from digital relays for troubleshooting or independent review of relay settings to diagnose misoperations.

7)     We can provide databases and data management to build combined short circuit models using data from both CAPE and ASPEN users.

8)     We have extensive field experience with commissioning and testing of new relaying systems.

9)     We can provide protection studies, coordination, arc flash, and troubleshooting for power plant electrical systems.

10)  We can help you with overflow work or get you through a period of new staff development.
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Commonwealth New Board Members Announced

 

FOR IMMEDIATE RELEASE

June 13, 2013

Contact: Kelly Engler (517) 768-7137

 

 

Commonwealth Welcomes New Board Members

 

JACKSON, MI - Commonwealth is pleased to announce that Samuel R. Barnes, P.E. and Robert J. Millies, P.E. have been newly elected to the company's Board of Directors.

Samuel R. Barnes, P.E.

With over 22 years in the industry, Barnes is Vice President of Power Generation and Energy at Commonwealth.  He currently serves as Chairman of the Board of Trustees for Jackson College, as JC’s Representative on the Board of Directors for The Dahlem Conservancy, and as President of the Jackson Cascades Lions Club.

Robert J. Millies, P.E.

 Millies, a civil engineer, is a Section Manager in Commonwealth’s Transmission and Distribution Line Engineering Department.  He has been with Commonwealth for over 15 years and in the industry for over 20.  Millies serves as Secretary for the Institute of Electrical and Electronics Engineers (IEEE) Transmission Line Construction Working Group.

Commonwealth is proud to recently have been ranked 9th in the nation among the 2013 Top 40 Engineering Design Firms by EC&M Magazine.  We provide solutions for utilities, municipalities, industrial clients, and world-class educational and healthcare institutions.  This year the corporation celebrates its 25th Anniversary as an employee-owned company.  Headquartered in Jackson, Michigan, the company has offices in Mount Vernon, Washington; Atlanta, Georgia; Columbus, Ohio; and Roanoke, Virginia.
 

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Commonwealth Associates, Inc.  I PO Box 1124, Jackson, MI 49204 I 517-788-3000 I www.cai-engr.com

For more information, please visit: www.cai-engr.com.

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