Previously, we wrote about the need to replace aging electronic relays as they reach their end-of-life. Affected facility owners have an opportunity to choose from a wide variety of replacement alternatives. The new relay selection process can be daunting as the market is flooded with devices that offer a wide range of features. Because of the level of complexity, many owners hire third-party consultants to assist with selection, testing, and installation. As a consultant and…
In the Beginning 1973 was an extraordinary time in my life; my family and I moved to Atlanta and started our new adventure. A big part of that adventure was starting work at Patterson & Dewar Engineers, Inc., which turned out to be one of the most satisfying experiences in my life. In high school, I always wanted to be an electrical engineer. A neighbor who was an engineer and another friend who was a…
Hood Patterson & Dewar (HP&D) is pleased to announce our status as a Certified Commissioning Firm (CCF). Organizations that hold the CCF designation stand out among competitors as experts – with the determination and ability to provide premier services to clients and the commitment to the advancement of the practice of commissioning. Established in 2002, the Building Commissioning Association (BCA) established the BCCB as a committee to oversee the process of creating a commissioning certification. Established in 1982, HP&D is…
For the third consecutive year, Hood Patterson & Dewar is pleased to be in the top tier of the 25 firms recognized on the Consulting-Specifying Engineer’s 2021 Commissioning Giants list. HP&D reported a commissioning revenue of $27.2 million. The magazine’s report is based on the annual commissioning revenue of firms of all levels, including new or existing buildings, whole building, recommissioning, monitoring-based, fire protection systems, building enclosure (envelope), emergency power systems, retro-commissioning, and communications systems….
Hood Patterson Dewar (HP&D), a wholly-owned subsidiary of Patterson & Dewar Engineers, Inc., is pleased to announce its new office in the Phoenix area, located at 1525 North Hayden Road, Suite 100, Scottsdale, Arizona. This office gives HP&D a local presence and allows us to provide better service to our clients in the western region. The Phoenix office opened in July, with several tenured staff offering a wealth of knowledge and experience in electrical and…
Conduit bushings play an important role in preventing damage to conductor insulation where the conductors pass through panelboard enclosures and tap box openings. Lately, we have seen numerous instances of plastic bushing inserts missing, displaced, or damaged, to the point where they no longer prevent the conductors from contacting the sharp edges of the equipment. The electricians were aware that the bushings were broken at one site but did not deem the situation important enough…
Patterson & Dewar Engineers, Inc. (P&D) is pleased to announce it has been selected as one of the Atlanta Journal Constitution’s 2021 Top Workplaces. The Top Workplaces list is based solely on employee feedback collected through a survey administered by Energage LLC, a third-party employee engagement technology partner. The anonymous survey measures 15 culture drivers critical to an organization’s success, including alignment, execution, and connection. P&D is an employee-owned company, and as Mike Bryan, President…
GE Grid Solutions is discontinuing several relays from its Multilin SR family of products. These microprocessor-based multi-functional relays were widely used around the turn of the century for industrial protection and management applications in industrial environments, data centers, electrical service entrances, distributed generation (DG) interconnects, motors, transformers, and generators. GE announced, “manufacturing of SR750/760, SR469, SR745 and SR 489 will be discontinued on 1st of January 2020 due to the unavailability of critical components used within the product.” Options for customers with affected relays…
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