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  • Determining Power Requirements when Planning a Solar Electric System
    A key step in defining the size of a solar electric or photovoltaic (PV) system is to first. determine the power requirements of the equipment to be powered (the load). These two. elements have a direct, linear relationship. If the load doubles, the sizes of the PV array. (solar modules
  • Solar Electric Systems - Power Reliability for 24/7 Operation - Part 2 (.pdf)
    Proper engineering (or sizing) is an important part of reliable. power solutions. Once the load parameters are identified (see. Part 1 of Power Reliability for 24/7 Operation), the solar designer then. uses information such as regional weather conditions (i.e. seasonal. temperatures, sun
  • Use of the AccuPAR to Quantify Effects of Riparian Vegetation Removal on Stream Energy Balance (.pdf)
    When the vegetation along a stream bank is removed, the solar load on the stream increases. This results in increased stream water temperature. Elevated stream temperatures degrade freshwater habitats, shifting species composition, and often endangering some of the species that live in the stream
  • Guidelines for High Reliability Remote Power System Design
    , but often overlooked gathering of accurate load information, how to accurately size a solar system and elect the proper solar array and battery bank, how to select reliable components, how to minimize field and installation errors, efficiently use materials, basics on DC-UPS systems, hazardous locations
  • Stiff Competition
    , in this work-boot safety toecap. The compound exceeds the specifications for safety boots, which states that a cap must withstand 7,500 lb of direct impact and 2,500 lb of static load. A disposable pump is engineered with a polyphenylene-sulfide (PPS) glassfiber-reinforced compound with PTFE lubrication
  • Medical Device Link .
    through transfusion, but it has recently become apparent that nucleic acid amplification technology narrows the seroconversion windows. While FDA-approved PCR-based assays for the quantitation of HIV-1 viral load exist, there are currently no FDA-approved nucleic acid amplification tests for HIV-1
  • Interfacing Pulsed Power Systems to Switching Power Supplies
    period of time and then discharges the energy to a load over a short period of time. The charging time may range from fractions of a millisecond to minutes. Care must be taken in the design of these systems to avoid allowing some of the very high peak powers to "leak" back into the power supply
  • Self-Protecting Starters
    the next two years. Several features make the SPS preferred over traditional motor controls. A self-protected starter combines contactor, overload, and short-circuit protection in one package. It is sized according to motor load current and horsepower. Generally, a small interchangeable module
  • Water Jet Cutting Machine - Tough Environment
    the width. The travel length is 172", speed is 73 in/sec with 1g acceleration and the load is 20 lbs. at a 12" roll moment. The system cycles five times per minute, two shifts per day, six days per week.
  • Designing with Thermally Protected TMOV Varistors in TVSS Applications (.pdf)
    Metal Oxide Varistors (MOVs) are commonly used to suppress transients in many applications such as: Transient Voltage Surge Suppressors (TVSS), Uninterruptible Power Supplies (UPS), AC Power Taps, AC Power Meters or other products. Lightning, inductive load switching, or capacitor bank switching

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