Technical Papers
Note: Ctrl-Shift-Minus rotates pdf files on most computers
- UPS Related
- Case Study - Long Outage Performance and Monitoring Success
- Installation Configuration Matrix
- Typical Single Module Installation One Lines
- ECO/ESS Modes Exposed
- Online vs Off Line/Line Interactive Considerations
- ABM - Advance Battery Management Exposed
- The Turtle, The Hare and UPS Performance (This Time the Rabbit Wins!)
- Fault-Tolerant Power Certification is Essential When Buying Products for High Availability
- Green IT - UPS Efficiency and Cost of Ownership
- Green UPS Solutions in Mission Critical Facilities through Industry Leading High Efficiency Power Electronics
- Description of Toshiba Hybrid Static Bypass Transfer Switch
- Toshiba G8000MM UPS Converter Configuration Technical Paper
- UPS Topology Overview IEC 62040-3 (6/2000)
- UPS Cost of Operation Table - Manufacturer Independent
- Testing Output of Wall Power w/ and w/o Powervar Low Impedance Transformer
- Case Study - Single Phase UPS Topology Differences
- Case Study - Test Data on Small UPS
- Understanding the Difference Between Isolated and Non-isolated UPS Systems
- Caution Issuance for APC Smart UPS: Use of industry standard serial cables may drop load
- Power Distribution
- Service Related
- Case Study - WES Service Permits On Time Launch to Mars
- Case Study - 10 Year Battery Life Achieved
- Custom Battery Integrity Testing - Sample Report
- Routine Battery PM Test Report
- Case Study - Battery Monitoring Captures Classic Failing Battery
- Battery Health, Impedance or Voltage Measurements, Why Impedance is Proper Method
- General Data Center
- Our drawing from many years ago where we first came up with benefit of both hot cold aisles and ventilation for better data center operation efficiencies. We realized, why are we re-cooling 100+ degree computer exhaust?
- Alternating Cold and Hot Aisles Provides More Reliable Cooling for Server Farms
- Continuous Cooling is Required for Continuous Availability
- Data Center Infrastructure Tier Standard: Topology
- PGE High Performance Data Centers
- Reducing Bypass Airflow is Essential for Eliminating Computer Room Hot Spots
- Tier Classifications Define Site Infrastructure Performance
- General
- FCC Class A and Class B Paper (Radiated Emissions and Immunity Requirements of Electronics)
- Note Class A is generally commercial/industrial non-home use
- Class B is residential/home use and is more stringent
- FCC Class A and Class B Paper (Radiated Emissions and Immunity Requirements of Electronics)
- Laboratory Related
- Our company for many years included supplying state of the art laboratory fume hoods. We entered this area partly because of its highly technical nature regarding airflow, pressure and engineering needs. We continue our Fume Hood Testing service which we developed when we discovered there were few, if any, firms properly testing fume hood containment. Based upon ANSI standards, we developed a more proper test. Along the way, we wrote a paper about 10 Fume Hood Myths which continues to be proper and we released, at no charge, to be included in an update of a ANSI standard.