Three phase a c circuits
Three phase a c circuits
... Principles Worked Example 3.5 Q A balanced delta-connected load takes a phase current of 15 A at a power factor of 0.7 lagging when connected to a 115 V, 50 Hz, three- phase supply. Calculate ... PM Three- Phase A. C. Circuits Chapter 3 Learning Outcomes This chapter introduces the concepts and principles of the three- phase electrical supply, and the corr...
Ngày tải lên: 03/04/2014, 20:52
IEC 60909 3 short circuit currents in three phase a c systems currents during two separate sim
... establish practical and concise procedures for the calculation of line-to-earth short-circuit currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents ... initial dans le cas de deux courts -circuits monophasés simultanés séparés à la terre " E2kE I Courant de court-circuit initial s'écoulant par la terre dans le cas d'un cour...
Ngày tải lên: 04/04/2014, 11:58
Design and Implementation of a Three-Phase Induction Motor Control Scheme
... control. FOC provides an induction motor every advantage that DC machine control can have, while freeing itself from mechanical commutation drawbacks [9]. It is anticipated that the application ... The three- phase induction machine is presented in Chapter 13. The electromagnetic and mechanical phenomena that are responsible for the induction motor’s many advantages are clearly explain...
Ngày tải lên: 27/10/2013, 23:15
A three phase voltage type PWM rectifier with the function of an active power filter
Ngày tải lên: 03/01/2014, 19:44
Current control techniques for three phase voltage source PWM converters a survey
... range. C. Basic Requirements and Performance Criteria The accuracy of the CC can be evaluated with reference to basic requirements, valid in general, and to speci c require- ments, typical of some applications. ... under discussion is not included. II. B ASIC C ONCEPTS A. Basic Scheme of CC-PWM The main task of the control scheme in a CC-PWM con- verter (Fig. 1) is to force the current...
Ngày tải lên: 03/01/2014, 19:45
Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc
... p a f or dc applic from the P V i ons such as u ch an array u that can ad a u strated in F a t the Maxi m as single p h q uency. For t n t of the D C m pedance be t m etrical out p voltage ... does not affect the output voltage. References [1] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Digital Control of three- Phase Inverter with LC Filter", IEEE T...
Ngày tải lên: 19/01/2014, 02:20