RagingWire & Critical Power Competency Center: Partnering for Success

Abstract: RagingWire Enterprises, a 200,000 sq/ft Tier IV data center discusses how its strategic partnership with Square D CPCC contributes to its reliability, uptime and ultimate success.

Information Saves $100K Annually Plus $1 Million Cost Avoidance

Abstract: When a metal manufacturing plant in the northeast was forced to consider a substation upgrade totaling nearly $1 million, information from their PowerLogic system convinced the company to simply switch loads to three other existing substations.

Facility Engineer Finds Novel Use, Extra Value from Power

Abstract: When Mike Krone considered a Square DÆ PowerLogicÆ power management system, he did so based on more beneficial features and fewer hidden costs. Once the system was installed he discovered unexpected added value.

Data Center Power Monitoring System Simplifies Generator Testing

Abstract: A large data center was concerned about the reliability of their emergency diesel generator to provide power for their critical loads in the event they lost utility power.

Power System Reliability Beyond the 9's - A Practical Approach

Abstract: Reliability has always been the focus of mission-critical power system design. While a rigorous mathematical approach to reliability is necessary to achieve the best results, the techniques used are often misunderstood or misapplied.

Beyond The Nines (Mission Critical Magazine, 3/1/08)

Abstract: Mission Critical Magazine-3/01/2008 Modern data center power systems represent the ultimate in optimization for reliability. Article presents a practical approach to data center power system reliability based on the whitepaper by Bill Brown.

Tackling Today's Data Center Energy Efficiency Challenges - A Software-Oriented Approach

Abstract: Learn how to reduce energy consumption in the data center, decreasing both escalating energy prices and the capital costs associated with the infrastructure that serves energy to the computer and server environment.

Defining the Needs of Modern Data Center Power Systems,

Abstract: In modern data centers, uninterruptible power upplies (UPS) provide the critical power for computer equipment and is a critical requirement for today's modern data centers.

Low Voltage Circuit Breaker Guidelines For Data Centers

Abstract: Circuit breaker reliability is the key to data center reliability. A detailed evaluation of the circuit breaker design and functionality at the design stage of the data center is extremely important and determines vitality of the power system.

Critical Power Automatic Transfer Systems Design and Application

Abstract: An important requirement of mission-critical electric power distribution systems is the need for automatic operation. In particular, the rapid and reliable transfer of the system is critical.

Switchgear Application Issues for Mission Critical Power Systems

Abstract: With the advent of high reliability data centers and telecommunication facilities, designers of commercial power face new challenges including local power generation and advanced transfer systems.

Critical Power Switchgear: Automatic Transfer Systems (Data Center Journal, 6/2007)

Abstract: Data Center Journal-6/2007 An article featured in the Data Center Journal discusses automatic transfer systems for critical power applications based on the whitepaper by Bill Brown and Jay Guditis.

Case History of Data Center Ground Fault Protection Optimization

Abstract: Data center power systems may be high resistance grounded or solidly grounded. Learn how to apply multiple power sources to comply with stringent requirements for power availability and quality.

Understanding the Differences Between Grounding, Bonding and Earthing

Abstract: Avoiding confusion about the differences between grounding, bonding and earthing can help customers maximize process uptime, safety, and profits

System Grounding & Ground-Fault Protection for Data Centers

Abstract: Review of common installation inadequacies and construction issues. Lists common conditions that cause bonding and grounding systems in data center facilities to become inadequate or deteriorated over time. Testing & maintenance requirements of groun

Critical Power System Reliability and the Art of Ground Fault Protection

Abstract: Critical power systems are designed to comply with stringent requirements for power availability and quality. In order to comply with these requirements, multiple power sources are tied together for power optimization.

Elegant Ground Fault Protection Systems / Zero Phase Sequence Currents in Three Wire Power Systems

Abstract: Power Systems associated with data centers have become very complex in an effort to maintain power system reliability. Such systems typically employ multiple sources of power involving multiple grounds.

Elegant Ground Fault Solutions For Nearly Impossible Problems: What is Ideal?

Abstract: Low voltage, four-wire power systems are becoming increasingly complex, involving many sources, grounding points and networks.

Low Voltage Ground Fault Protection Optimization for a Modern Data Center, A Case History

Abstract: Data center power systems are designed with stringent requirements for power availability and quality. The most common approach is to use solidly grounded low voltage power sources.

New Concepts in Elegant Ground Fault Protection for Service Entrance Conductors

Abstract: Why would anyone want ground fault protection on the service entrance conductors on the service side of a Main Circuit Breaker? Learn new concepts in ground fault protection for critical power applications.

Optimizing Power System Protection For Modern Data Center

Abstract: Data center power systems are constructed with a premium on reliability at a significant cost. Learn how to determine the return on this investment.

System Grounding & Ground Fault Protection

Abstract: The use of solid grounding for UPS-supplied power systems is currently a common practice in data centers. Review the use of conventional ground fault protection systems in this application.

System Grounding and Ground Fault Protection for UPS

Abstract: Explore the nature of circulating currents in UPS-supplied power systems when solid system grounding is employed and the use of modified-differential ground fault protection to eliminate the effects of these circulating currents; also discusses the alternative of high-resistance grounding for this application is discussed and its advantages and disadvantages.

System Grounding and Ground Fault Protection for Data Centers

Abstract: This paper presents the fundamentals of power system grounding, fundamental definitions and NEC requirements for grounding, the need for LV ground fault protection and implementation, and special grounding requirements imposed by the data center operating environment. Also addressed are requirements for 4-wire versus 3-wire systems, installation of modified differential ground fault (MDGF) protection systems, and the effects of system grounding upon surge protection and power quality.

Line-to-Ground Voltage Monitoring on Ungrounded & Impedance-Grounded Power Systems

Abstract: Intelligent Electronic Devices (IED) are sometimes used on ungrounded and impedance grounded systems to record and alarm on line to ground voltages. The line to ground voltage data can be recorded.

Power Monitoring for Modern Data Centers

Abstract: By their nature, mission critical facilities such as Internet data centers are prime candidates for power monitoring systems. Learn how to employ monitoring systems to analyze system-wide historical and real-time data.

Power System Event Reconstruction Technologies for Modern Data Centers

Abstract: Reliability principles indicate that, due to component degradation, no power system can operate 100% of the time indefinitely. Learn how to employ back up and recovery procedures designed to save the critical load.

Comparison of Arc-Flash Incident Energy Reduction Techniques Using Low-Voltage Power Circuit Breakers

Abstract: Increasing industry awareness of arc-flash hazards has led to the development of a number of techniques for the reduction of arc-flash incidents.

Short-Circuit, Coordination, and Arc-Flash Studies for Data Centers: Best Practices and Pitfalls

Abstract: Data Center power systems present unique challenges for the application of electrical equipment. Challenges such as multiple operating modes must be carefully implemented to achieve the desired system performance under normal and abnormal conditions. This whitepaper describes the challenges often encountered by system study engineers in a typical data center, profiles common pitfalls that must be avoided, and addresses the ways in which a well-performed system study is crucial to the successful performance of a data center power system.

Microprocessor Based Relays Can Resolve Ground Relay Tripping

Abstract: Microprocessor based relays offer new options for counteracting the growing problem of ground relay tripping in commercial buildings. Learn how to resolve ground relay tripping with protective relaying techniques.

Power System Harmonic Considerations: Tips & Tools for Harmonic Distortion in Electronic Drive Apps

Abstract: Power systems must serve a combination of loads, many of which produce non-sinusoidal current when energized from a sinusoidal ac voltage source. Learn considerations for handling power system harmonic distortion in electronic drive applications.

Switchgear Design Impacts the Reliability of Backup Power Systems

Abstract: Switchgear design can impact the reliability of backup power systems as demonstrated when a cascaded sequence of events led to the ultimate collapse of a highly interconnected power transmission system causing the Northeastern ìblackoutî of 2003.

Power System Event Reconstruction for Data Centers (Energy & Power Management, 3/2007)

Abstract: Getting back up and running is critical when a disaster strikes. Learn how to recover a data center with event reconstruction technologies.

Back-Up Power: "Back" to the Basics

Abstract: In todayís business climate, reliability requirements force the consideration of backup power when power from the electric utility is unavailable. But what type of backup power? A number of backup power solutions are available on the market today.

Power System Equipment Maintenance and Long Term Servicing Requirements for Data Centers

Abstract: This paper discusses how equipment servicing and maintenance is crucial to the long-term operation of a data center power system, typical maintenance intervals and servicing activities for different types of equipment, and how the consideration of maintenance in the initial design of a data center enhances reliability in the long-term.

Short-Circuit, Coordination, and Arc-Flash Studies for Data Centers: Best Practices and Pitfalls

Abstract: Data Center power systems present unique challenges for the application of electrical equipment. Challenges such as multiple operating modes must be carefully implemented to achieve the desired system performance under normal and abnormal conditions. This whitepaper describes the challenges often encountered by system study engineers in a typical data center, profiles common pitfalls that must be avoided, and addresses the ways in which a well-performed system study is crucial to the successful performance of a data center power system.

Advanced Power Reliability Solutions

Abstract: Complete line of advanced power reliability solutions by Square D PowerLogic, ranging from remote and web-enabled power management systems to power monitoring and event recording solutions.

Power Logic Equipment Optimization Solutions

Abstract: Optimize your equipment with PowerLogic optimization solutions.

Power Logic Retrofit Kit

Abstract: PowerLogic solutions guide to equipment retrofit capabilities.

Power Logic Support Services

Abstract: Power Logic support services solutions for critical power applications.

Power Logic Utility Cost Reduction

Abstract: Learn how to reduce utility costs with Power Logic solutions.

Power Logic Energy and Power Management Systems Product Range Overview

Abstract: Complete overview of energy and power management systems for critical power applications from Square D Power Logic.

Energy Reduction & Power Reliability Solutions

Abstract: Reduce energy without sacrificing power system reliability with Square D PowerLogic solutions.

PowerLogicÆ Web-Enabled Network Components: Access valuable energy and power information from your system

Abstract: Selection Guide comparison of Square D/Schneider Electric PowerLogic web-enabled network components that are built on open Modbus standards.

PowerLogicÆ Web-Enabled Network Component Selection Guide

Abstract: Leveraging existing infrastructures, all support Ethernet connectivity and web technologies designed for all critical power applications.

Products for Critical Power Applications, Digest 174

Abstract: See our complete line of Square D medium and low voltage power distribution products and equipment for critical power applications.

Data Center Product Application Guide

Abstract: Schneider Electric offers a complete line of high quality MV and LV power distribution products for critical power applications. Includes drawout switchgear and switchboards, power monitoring and control systems, motor control centers, and more.

Total Energy Control Program

Transparent Ready Power Distribution Equipment - Level 1

Abstract: Profile of the entire line of Transparent Ready power distribution equipment available from Schneider Electric.

Mission Critical Power Distribution Diagram

Abstract: One-Line diagram demonstrating power distribution in a mission critical data center environment.

Transparent Ready Power Distribution Equipment Level 1

Abstract: TRANSPARENT READY power distribution equipment provides a secure window to your operations. By using your existing IS infrastructure, it allows you to monitor power usage, power quality, and equipment status from the comfort of your own desk.

Mission Critical Power Distribution Overview

Abstract: Our complete product line of Square D products are featured in this electrical one-line representation of high quality medium- and low-voltage power distribution and power monitoring equipment.

Beyond The Nines

Abstract: A practical approach to data center system reliability

Mission Critical Magazine (Spring 2009): System Grounding and Ground Fault Protection Methods for UPS-Supplied Power Systems

Abstract: The use of solid grounding for UPS-supplied power systems is currently a common practice in data centers. The use of conventional ground fault protection systems in this application can lead to circulating currents and nuisance tripping, resulting in the desire to defeat or exclude groundfault protection altogether.

Mission Critical Magazine (February 2009): Tackling Today's Data Center Energy Efficiency Challenges - A Software-Oriented Approach

Abstract: Energy consumption is a growing concern for data centers as advances in server equipment technologies and increased demand for computing power have increased load densities in the computer room, causing corresponding increases in data center power consumption. Energy efficiency measures are thus of high importance for data center designers, operators, and owners. This paper outlines a software-based approach to the data gathering, trending, and analysis that are necessary to apply successful energy efficiency measures in data center environments.

Critical Connection Newsletter, Spring 2008, Vol. I, Issue 2

Abstract: The second edition of our new Critical Connection Newsletter written by Square D Critical Power Competency Center engineers and other experts.

Critical Connection Newsletter -Fall 2008, Vol.1, Issue 1

Abstract: The debut issue of the Critical Connection newsletter is here! The first of our semi-annual newsletter publication, Fall Volume 1 contains news, events, expert profiles, article abstracts, and more written by Square D engineers and other experts.