Power Factor Correction

Xem 1-12 trên 12 kết quả Power Factor Correction
  • Tài liệu tham khảo Power factor correction and harmonic filtering - Hiệu chỉnh hệ số công suất và lọc sóng hài

    pdf26p nmtinh 30-11-2010 161 73   Download

  • Abstract: Industry standard for the control of switch mode power supply (SMPS) systems has been analog control. Now with the advent of high speed, lower cost digital signal processing (DSP) ICs, digital control there has been an increased interest in digital control of SMPS. The Power Electronics & Power Quality Laboratory of Texas A&M University is currently exploring several implementation aspects of digital control of power factor correction (PFC) stage of SMPS. Two low cost digital controllers: TMS320LF2407 and ST52x420 are evaluated for implementing PFC function.

    pdf11p longmontran 14-01-2010 121 30   Download

  • Digital Control of Switching Power Supply - Power Factor Correction Stage

    pdf11p hoang1 02-11-2009 116 28   Download

  • Power Quality Considerations Harmonics • What Are Harmonics? • Harmonic Sequence • Where Do Harmonics Come From? • Effects of Harmonics on the System Voltage • Notching • Effects of Harmonics on Power System Components • Conductors • Three-Phase Neutral Conductors • Transformers • Effects of Harmonics on System Power Factor • Power Factor Correction Capacitors • IEEE Standard 519 Badrul H. Chowdhury University of Missouri–Rolla Hirofumi Akagi Tokyo Institute of Technology Rajapandian Ayyanar Arizona State University 17.

    pdf63p daohuongthon 22-01-2010 79 22   Download

  • In No 216 of "The Medical Record" (Dec. 15th, 1874) was published an article written by me, entitled "On some of the Uses of Galvanic and Faradic Baths." The interest manifested in the subject, as evidenced by numerous letters of inquiry since received from physicians in almost all parts of the United States, and some in Europe, has induced me to write the present treatise, in which I have endeavored to present to the profession, as far as lies in my power, all that is necessary to a full comprehension of the electro-balneological treatment.

    pdf55p hotmoingay9 02-02-2013 19 3   Download

  • Tham khảo sách 'electrical installation handbook volume 2', kỹ thuật - công nghệ, điện - điện tử phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf137p endlesslovelp 20-09-2012 92 40   Download

  • This guide has been written for electrical Engineers who have to design, select electrical equipment, install these equipment and, inspect or maintain low-voltage electrical installations in compliance with international Standards of the International Electrotechnical Commission (IEC). “Which technical solution will guarantee that all relevant safety rules are met?” This question has been a permanent guideline for the elaboration of this document.

    pdf564p nmtinh 09-06-2015 54 32   Download

  • This guide has been written for electrical Engineers who have to design, realize, inspect or maintain electrical installations in compliance with international Standards of the International Electrotechnical Commission (IEC).

    pdf492p ductt47 21-10-2013 63 24   Download

  • Mathematics for Electrical Calculations, Power Factor Correction, and Harmonics Cũng như các 100 pounds (lb) vũ lực mà một đứa trẻ tác động khi kéo một đối tượng đối với các phía đông, hoặc hướng x, thông qua một sợi dây thừng, không có thể được bổ sung trực tiếp các lb 150 của lực lượng mà một đứa trẻ riêng biệt tác động đồng thời kéo cùng một đối tượngvề hướng bắc, hoặc y, hai kéo làm việc cùng nhau hướng tới mục tiêu kéo các đối tượng trong một hướng c...

    pdf54p xuongrong_battien 25-10-2011 51 17   Download

  • Automatic Voltage Regulator adjusts the excitation so that at the system design power factor, the voltage is correct whatever the current. If however it adjusts the excitation to give the correct voltage at other power factors, then two machines will not run in parallel. One can supply a huge leading current and the other a huge lagging current. A “droop” is needed to give a lower voltage if the power factor lags by more than the system design. This is achieved by the compounding. Faulty Compounding causes unstable sharing of kVAr which can be quite violent....

    pdf221p tuanloc_do 04-12-2012 26 7   Download

  • The origin of the electrolytic capacitor or condenser can be traced to the second half of the 19th century when the discovery was made (Wheatstone, Buff, Ducretet) that a film can be formed on aluminum electrochemically and that it will exhibit unidirectional electrical conductance and other peculiar properties. One of the early attempted applications of the electrolytic capacitor was in conjunction with the starting of single-phase induction motors; efforts were also made to utilize it for power factor correction in alternating current circuits.

    pdf205p culao1122 08-01-2013 24 7   Download

  • Engine specific weight and specific volume - Correction factors for power and volumetric efficiency

    pdf10p lyacau 30-12-2009 50 9   Download

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