Title: A Customer’s Perspective: Implementing Commissioning Plans

9:30AM - 10:15AM
Presenter: Randall Sagan, MBUSI

Converting a commissioning plan into a working test plan requires a thorough understanding of how the system is intended to operate. Simply testing discrete components will not always validate all of the functions involved. Sometimes, inter-device communications and logic programs must also be tested to fully commission a system.

This paper discusses the development of commissioning plans for several projects and how they were implemented by testing agencies. The plans encompassed Owner's Project Requirements (OPR) and Basis of Design (BOD) and were eventually used to develop on-site acceptance and commissioning tests. The communication-assisted protection and control schemes being used increased the level of complexity of the tests performed. By having well-defined plans, commissioning of the equipment was able to be accomplished much more effectively.

Title: VCB and GCB Power Factor Tests – Data Analysis and Troubleshooting

10:30AM - 11:15AM
Presenter: Michael Wolf, Doble Engineering Company

This presentation will review the analysis of power factor and capacitance results on vacuum circuit breakers (VCBs) and gas circuit breakers (GCBs). After describing the tests, the analysis of the data provided from each test will be described. Finally, troubleshooting steps to ensure quality results will be reviewed to mitigate outside influences, environmental factors, or test hookup errors.

Title: System Critical Bus Duct Systems – Inspection & Maintenance Best Practices for Isophase and Non-Seg Bus Systems

11:30AM - 12:15PM
Presenter: Mohsen Tarassoly and Mitch Pallansch, Electrical Builders, Inc.

The purpose of this presentation is to educate the audience on best practices that have been identified for analysis, inspection, cleaning, and maintenance of the bus duct systems of the power generation facility. Many plant operations and maintenance managers ignore the bus duct system, forgetting it is a system critical component in the power plant that does not have redundancy AND is connected to expensive plant assets on both ends.

Common statements made before a bus duct failure include "It has no moving parts, what could go wrong with it." Or, "It has run without issue since the plant was built, why do we need to open it up now?" And another common statement; "We inspect the exterior of the bus and do IR scans of the enclosure regularly." Inevitably, plants that operate under any of these philosophies have or will experience a failure of their bus. This presentation will explain why.

The presentation will review numerous case studies from over forty years of field findings from Electrical Builders, Inc. (EBI). Presentation topics will include IEEE industry standards, inspection options (both online and offline), testing requirements, life extension options, current trends in predictive maintenance programs, the ramifications of poorly and/or inadequately maintained bus duct systems, and best practices for bus duct system inspection and maintenance.