Consulting-Specifying Engineer - September 2007 - (Page 23)

M/E Roundtable operates on an integral and proprietary controller, it is difficult and/or expensive to have a complete user interface to each component when they are stick-built. With the pre-integrated approach, all of the components can communicate over one bus with integrated monitoring on one user interface. CSE : Do you think that a pre-integrated system requires a certain amount of customization? Please describe your experiences. FLICKINGER: Generally speaking, the answer is no. The integrated equipment is comprised of standard parts and pieces, which are individually listed. The primary consideration is the actual listing of the specific integrated equipment, and the approval of the AHJ (authority having jurisdiction). AMANN: Some projects are somewhat cookie-cutter, i.e. a single generator with a single transfer switch picking up the entire load. This type of system generally can be provisioned with pretty standard configurations and features. However, more sophisticated systems will generally require at least some customization. We have many of the straightforward projects. But for clients that require a higher degree of reliability, we often design configurations and system requirements that some vendors cannot fabricate. AHUJA: Yes, to meet facility space constraints, equipment movement constraints and for integration with existing electrical distribution or maintenance issues. CSE : It seems that pre-integrated power would be the perfect fit. Is this not the case? FLICKINGER: An integrated power system would indeed be optimal solution for cogeneration applications if the resulting system is categorized as “optional standby” under NEC Articles 702 and 705. Ideally, the integrated equipment would incorporate the automatic transfer switch or paralleling equipment and be provided through a utility program. AHUJA: I think this is not the case due to multiple variables involved with facilities on co-generation. A few issues include: requirement for balancing heat usage and heat recovery; power system integration with local utility company; local utility protective relaying requirements; metering requirement for revenue and monitoring; and remote utility-controlled transfer requirement. AMANN: Pre-integrated power VFD-Induced Shaft Current Kills Motor Bearings! BEARING PROTECTION RING Guaranteed to Protect Bearings for Life! For motors up to 100 HP / 75 kw, AEGIS SGR’s patented technology is guaranteed to protect bearings against electrical fluting damage for the life of your motor. The AEGIS Bearing Protection Ring™ extends motor life and increases system reliability. To download a free technical paper on bearing protection technologies, visit our website: 1-866-738-1857 | sales@est-aegis.com | www.est-aegis.com/cse1 Input #214 at csemag.com/quickResponse Consulting-Specifying Engineer • SEPTEMBER, 2007 23 http://www.est-aegis.com/cse1 http://www.est-aegis.com/cse1 http://www.est-aegis.com/cse1 http://csemag.com/quickResponse

Table of Contents Feed for the Digital Edition of Consulting-Specifying Engineer - September 2007

Contents M/E Roundtable Cover Story: Airborne Superbugs Third-Party Liability Back to School Product Spotlight Codes & Standards Professional Practices How To New Products Jobs/Cliassifieds Specifier’s Notebook Pure Power Supplement New Technologies, Same Old Transmission Problems Wireless Battery Recharging Solar Concentration Renewables Tracking System A Mighty Wind The Importance of Load Bank Testing Quality Power for Security Systems

Consulting-Specifying Engineer - September 2007

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