White Papers
The following featured articles are white papers written by the Tier IV Group team of professional engineers. Many of the articles have appeared in leading trade publications. To view the article in its entirety click on the linked title.
The Data Center Tier Performance Standards and Their Importance to the Owners Project Requirements
The data center industry has experienced several evolutions over the past 20 years. One of the principal changes has been the development of the Tier Performance Standards. The standards provide quantifiable plateau’s or Tier Levels. Tier Levels provide…
Piecing Together Your Circuit Protection Plan
Is it sufficient to select protective devices based entirely on their ability to carry a designated load and interrupt fault current in their part of the distribution system? No. An accurately engineered electrical distribution system will allow only…
There is an on-going debate within the battery industry today regarding the correct method for calculating the capacity of a battery in a high-rate discharge application, such as an Uninterruptible Power Supply (UPS) battery plant. The contention is that the end-of-life requirement is for the battery to…
DC Ground Fault Detection Provided for Uninterruptible Power Supplies
There are concerns among owners and managers of Uninterruptible Power Supplies (UPS) in the operation of their UPS battery plant(s) to the risk of DC ground faults and to the timely detection and alarming of a ground fault before it can escalate into a serious or catastrophic event.
Reliable Battery Systems Won’t Happen Without Proactive Testing and Maintenance.
What is required to guarantee a reliable system? Our world today has become reliant on systems in support of a global economy and communication network that are powered by a combination of both DC and AC electrical power sources.
The IEEE PES Stationary Battery Standards Committee recognizes that specific training on battery system installation and maintenance is necessary. The subcommittee also recognizes that existing training of battery maintenance and installation technicians is generally non-existent, or at the least, non-standard.
DC Ground Fault Detection Provided for Uninterruptible Power Supplies
There are concerns among owners and mangers of Uninterruptible Power Supplies (UPS) in the operation of their UPS battery plant(s) to the risk of DC ground faults and to the timely detection and alarming of a ground fault before it can escalate into a serious or catastrophic event.