Technical Library
By registering or logging in, you will have continued, unlimited access to whitepapers, application guides, presentations, articles, case studies and demos available from Square D Company Critical Power Competency Center.
CPCC's new Technical Reference Library is updated regularly and provided as a free service to data center professionals including consultants, engineers, contractors, and data center owners and IT operators.
- Articles & Whitepapers
- Arc-Flash
- Comparison of Arc-Flash Incident Energy Reduction Techniques Using Low-Voltage Power Circuit Breakers (373kb)
Brown, B., P.E. Schneider Electric/Square D & Shapiro, R., EYP Mission Critical FacilitiesAbstract:
Increasing industry awareness of arc-flash hazards has led to the development of a number of techniques for the reduction of arc-flash incidents.
- Comparison of Arc-Flash Incident Energy Reduction Techniques Using Low-Voltage Power Circuit Breakers (373kb)
- Automatic Transfer
- Critical Power Automatic Transfer Systems Design and Application (448kb)
Bill Brown, P.E. & Jay Guditis - Square D Critical Power Competency CenterAbstract:
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. - Critical Power Switchgear: Automatic Transfer Systems (Data Center Journal, 6/2007) (1,147kb)
Bill Brown, P.E. & Jay Guditis - Square D Critical Power Competency CenterAbstract:
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. - Switchgear Application Issues for Mission Critical Power Systems (201kb)
Tajali, R. PE, Square DAbstract:
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 Automatic Transfer Systems Design and Application (448kb)
- Backup & Recovery
- Back-Up Power: "Back" to the Basics (17kb)
Bill Brown, P.E. - Critical Power Competency CenterAbstract:
In todays 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 Event Reconstruction for Data Centers (Energy & Power Management, 3/2007) (405kb)
Bill Brown, P.E. - Square D Critical Power Competency CenterAbstract:
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 (17kb)
- Energy Efficiency
- Tackling Today's Data Center Energy Efficiency Challenges - A Software-Oriented Approach (393kb)
Brown (PE), Parker (PE/CEM/CMVP) & Lindsay - Square D CompanyAbstract:
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.
- Tackling Today's Data Center Energy Efficiency Challenges - A Software-Oriented Approach (393kb)
- Harmonics
- Power System Harmonic Considerations: Tips & Tools for Harmonic Distortion in Electronic Drive Apps (536kb)
L. Ray, & L. Hapeshis, PE, Square DAbstract:
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.
- Power System Harmonic Considerations: Tips & Tools for Harmonic Distortion in Electronic Drive Apps (536kb)
- LV Circuit Breaker Application
- Defining the Needs of Modern Data Center Power Systems, (214kb)
Tajali, Reza, P.E., Square DAbstract:
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 (41kb)
Tajali, R., P.E., Square DAbstract:
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.
- Defining the Needs of Modern Data Center Power Systems, (214kb)
- LV Ground Fault Protection
- Case History of Data Center Ground Fault Protection Optimization (214kb)
Tajali, R., P.E., Square DAbstract:
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. - Critical Power System Reliability and the Art of Ground Fault Protection (44kb)
Tajali, R., P.E., Square DAbstract:
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 (96kb)
Swindler, D., P.E., Square DAbstract:
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? (16kb)
Swindler, D., P.E., Square DAbstract:
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 (70kb)
Tajali, R., P.E., Square DAbstract:
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 (23kb)
Swindler, D., P.E., Square DAbstract:
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. - System Grounding & Ground Fault Protection (323kb)
Brown, B., P.E., - Square D Critical Power Competency CenterAbstract:
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.
- Case History of Data Center Ground Fault Protection Optimization (214kb)
- Power Monitoring
- Line-to-Ground Voltage Monitoring on Ungrounded & Impedance-Grounded Power Systems (123kb)
Tajali, R., P.E., Square DAbstract:
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 (49kb)
Tajali, R., P.E., Square DAbstract:
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 (260kb)
Bill Brown, B., P.E. & Mark Kozlowski - Square D Critical Power Competency CenterAbstract:
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.
- Line-to-Ground Voltage Monitoring on Ungrounded & Impedance-Grounded Power Systems (123kb)
- Protective Relaying
- Microprocessor Based Relays Can Resolve Ground Relay Tripping (60kb)
Tajali, R., P.E., Square DAbstract:
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.
- Microprocessor Based Relays Can Resolve Ground Relay Tripping (60kb)
- Switchgear Application
- Switchgear Design Impacts the Reliability of Backup Power Systems (134kb)
Tajali, R. PE, Square DAbstract:
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 blackout of 2003.
- Switchgear Design Impacts the Reliability of Backup Power Systems (134kb)
- System Reliability
- Beyond The Nines (Mission Critical Magazine, 3/1/08) (1,082kb)
Bill Brown, P.E., Square D Critical Power Competency CenterAbstract:
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. - Power System Reliability Beyond the 9's - A Practical Approach (249kb)
Bill Brown, P.E. - Square D CompanyAbstract:
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) (1,082kb)
- Arc-Flash
- Case Studies
- Critical Power
- Raging Wire & Critical Power Competency Center: Partnering for Success (3,810kb)
Square D Critical Power Competency CenterAbstract:
Raging Wire 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.
- Raging Wire & Critical Power Competency Center: Partnering for Success (3,810kb)
- Power Logic
- Facility Engineer Finds Novel Use, Extra Value from Power (110kb)
Square D PowerLogicAbstract:
When Mike Krone considered a Square D® PowerLogic® 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. - Information Saves $100K Annually Plus $1 Million Cost Avoidance (68kb)
Square D PowerLogicAbstract:
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. - Petroleum Refinery Saves Millions with Returns in Less Than One Year (84kb)
Square D PowerLogicAbstract:
Second only to crude oil, electrical power is typically one of the highest production costs and key elements in the refining business.
- Facility Engineer Finds Novel Use, Extra Value from Power (110kb)
- Power Monitoring
- Data Center Power Monitoring System Simplifies Generator Testing (88kb)
Square D PowerLogicAbstract:
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.
- Data Center Power Monitoring System Simplifies Generator Testing (88kb)
- Critical Power
- Diagrams & Schematics
- Critical Power
- Mission Critical Power Distribution Overview (1,256kb)
Square D Critical Power Competency CenterAbstract:
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.
- Mission Critical Power Distribution Overview (1,256kb)
- Critical Power
- News Archive
- Power Monitoring
- Schneider Electric Announces New Ethernet Connectivity - 11/30/2007 (19kb)
Square D PowerLogicAbstract:
Global power and automation leader Schneider Electric today announced a Web-enabled Ethernet communications card option for its compact Square D PowerLogic PM800 series power meters, designed to optimize the monitoring of electrical installations.
- Schneider Electric Announces New Ethernet Connectivity - 11/30/2007 (19kb)
- Power Monitoring
- Newsletters
- Critical Connection Newsletter
- Critical Connection Newsletter -Fall 2008, Vol.1, Issue 1 (326kb)
Square D Critical Power Competency CenterAbstract:
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. - Critical Connection Newsletter, Spring 2008, Vol. I, Issue 2 (731kb)
Square D Critical Power Competency CenterAbstract:
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 (326kb)
- Critical Connection Newsletter
- Sales Collateral
- Critical Power
- Data Center Product Application Guide (2,478kb)
Square D Critical Power Competency CenterAbstract:
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. - Mission Critical Power Distribution Diagram (1,256kb)
Critical Power Competency CenterAbstract:
One-Line diagram demonstrating power distribution in a mission critical data center environment. - Products for Critical Power Applications, Digest 174 (1,731kb)
Square D Critical Power Competency CenterAbstract:
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 (2,478kb)
- Power Logic
- Advanced Power Reliability Solutions (505kb)
Square D Power LogicAbstract:
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. - Energy Reduction & Power Reliability Solutions (153kb)
Square D Power LogicAbstract:
Reduce energy without sacrificing power system reliability with Square D PowerLogic solutions. - Power Logic Energy and Power Management Systems Product Range Overview (2,346kb)
Square D Power LogicAbstract:
Complete overview of energy and power management systems for critical power applications from Square D Power Logic. - Power Logic Equipment Optimization Solutions (1,264kb)
Square D Power LogicAbstract:
Optimize your equipment with PowerLogic optimization solutions. - Power Logic Retrofit Kit (226kb)
Square D Power LogicAbstract:
PowerLogic solutions guide to equipment retrofit capabilities. - Power Logic Support Services (318kb)
Square D PowerLogicAbstract:
Power Logic support services solutions for critical power applications. - Power Logic Utility Cost Reduction (895kb)
Square D Power LogicAbstract:
Learn how to reduce utility costs with Power Logic solutions. - PowerLogic® Web-Enabled Network Component Selection Guide (148kb)
Square D Power LogicAbstract:
Leveraging existing infrastructures, all support Ethernet connectivity and web technologies designed for all critical power applications. - PowerLogic® Web-Enabled Network Components: Access valuable energy and power information from your system (835kb)
Square D Power LogicAbstract:
Selection Guide comparison of Square D/Schneider Electric PowerLogic web-enabled network components that are built on open Modbus standards.
- Advanced Power Reliability Solutions (505kb)
- Transparent Ready
- Transparent Ready Power Distribution Equipment - Level 1 (1,217kb)
Schneider ElectricAbstract:
Profile of the entire line of Transparent Ready power distribution equipment available from Schneider Electric.
- Transparent Ready Power Distribution Equipment - Level 1 (1,217kb)
- Critical Power
- Technical Documents
- Transparent Ready
- Transparent Ready Power Distribution Equipment Level 1 (236kb)
Square D PowerLogicAbstract:
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.
- Transparent Ready Power Distribution Equipment Level 1 (236kb)
- Transparent Ready
