2014年9月9日星期二

Only the power factor and the phase difference between current and voltage related to ρ

B only with the power factor phase current (fundamental) and voltage, but also to the pulse width relating to the current, even if the pure sine wave online ups  current (fundamental) and the voltage phase difference between the b = 0, i.e., the current (fundamental) and the center line coincides with the voltage based on the calculated F (a) still is not 1, and with the current pulse width is narrowed due to decrease relatively Online ups  steep leading edge of the current pulse, so that the harmonic frequency of the current is relatively high offering rich , space launch ups solar power capability to offer relatively strong. 
If the UPS input circuit is a diode rectifier or a thyristor rectifier, the power factor thereof is not caused by a phase difference, but by strong interference caused by a current pulse. These high-order harmonic currents all the way to form a series mode interference Shao fleeing through electrical equipment, another way out in the form of electromagnetic radiation, the formation of RF interference nearby devices, especially so that the radio communication can not be normal.

2014年9月1日星期一

UPS applications in the telecommunications industry

UPS applications in the telecommunications industry UPS uninterruptible power prices in the emerging industry is rapidly foster the rapid development of the background, the rapid development of big data, smart cities, urbanization, 4G will detonate UPS and other hot new growth markets. Big Data is a sunrise industry, will drive data center  pure sine wave online ups infrastructure and related software explosive growth, data center environments for enterprise deployments also make the appropriate change and innovation, for UPS manufacturers, opportunities and challenges. UPS uninterruptible power prices in the wisdom of many of the city's construction around the digital and information technology to transform the Pure sine wave ups data room for the construction and communication infrastructure to carry out. Both ends of the nerve endings in the smart city (data acquisition, the home communication terminal), or for the nerve / nerve fibers to transmit data, or the neural network (the core of the handling end, an information storage), there are many aspects of UPS manufacturers can the as. Urbanization will promote the application of UPS market in transport, electricity, public services and other industries.