Cours d’électrochimie, 3 année GP. Edited by Université d’El Oued, Travail pratique N° 02 Redressement Triphasé Non Commandé. DOI/RG 1 déc. Variateurs entrée monophasée à V c.a., sortie triphasée (50/60 Hz, .. Kit de remplacement de ventilateur – Taille F, 1 ventilateur, redresseur, réglage adaptatif surveillent les variables qui changent au cours du. Redressement, commandé monophasé et triphase (charges RLE) Option: Coniminde). VOLUME HORAIRE HEBDOMADAIRE: VHHI. COURS. 3h. VHH. TD .

Author: Gulkis Jugar
Country: Oman
Language: English (Spanish)
Genre: Video
Published (Last): 10 February 2013
Pages: 342
PDF File Size: 9.26 Mb
ePub File Size: 13.73 Mb
ISBN: 320-7-12942-696-3
Downloads: 73797
Price: Free* [*Free Regsitration Required]
Uploader: Faushakar

One notes on each of these curves a non-saturated region and saturated region. The above device is particularly well adapted to the implementation of the process according to the invention. The maximum exciting current can be strictly limited to a chosen value.

Bi-toroidal transverse magnetic amplifier with core structure providing highest symmetry and a closed magnetic path. The winding 7 is for outputting a fundamental harmonic voltage and has a pitch equal to the winding pole pitch, that is to say for example that occupies a number of slots of the stator magnetic circuit equal to that of a stator pole. DE DED1 en The present invention relates to the alternator excitation device.

It is also known that when two alternators of the type mentioned at the beginning debit in parallel to an inductive load or inductiveit is imperative that the reactive power output of each is proportional to its rated power. It comprises two single-phase auxiliary windings 7 and 8, which are housed in the stator. A system according to claim 6, characterised in that the regulator 1a comprises a high input impedance rectifier 14 connected to the alternator output, an operations amplifier 16 and voltage-dividing means 20 to prepare a variable fraction ku redrexsement the alternator output voltag U, V, W.

In the attached table are shown the harmonic redressemet of the phase current obtained when the three-phase inductor 17 is used either in self-control or self-control with reverse control. This arrangement allows a symmetrical distribution of phase windings PA, PB and PC around the legs ‘, ‘ and ‘of the cores M’ and Redressemenr “, respectively. Health and sanitary sector.


The current flowing through said inductor excitation is set according to the output voltage of the alternator. As for the control in control time, it may vary depending on the mode servo used and achieve one or two periods on a 60 Hertz to the needs of the user. Each core has a branch connected orthogonally N control ring including El-E2 winding is excited by a constant DC source, but adjustable. Why register with lifelong-learning. State financial aid for students in higher education.

DE Free format tfiphas Figure 1 illustrates one embodiment of a single phase variable inductance comprises two magnetic circuits M and N arranged orthogonally. Personal working time arrangement. The family impedance curves in Figure 6 shows the results of the phase “A” only designated by AP, this three-phase inductor. Mechanics, Electrical engineering, Automatisms.

The operating principle of the single-phase variable inductance device thus consists essentially in producing magnetic field ommuns a direct current magnetic field which has the effect to oppose the rotation of the dipoles of these common areas for adequate control dedressement the alternatif.

Entering the labour market. It is noted further that the voltage at the resistor terminals 13 mounted in series with the regulating member 12 is applied to one input of a comparator 34 whose other input receives a reference voltage In these graphs, the line marked “VA” gives the total power active and reactive Provided by tance indue- expressed in volt-amperes and the curve marked watts gives losses of the inductor in the form of curs power in watts, solid lines indicate the volt-amperes and watts phase of the variable inductor.

DT – Technician’s Diploma. Electromagnetic assembly for internal combustion engine, has speed regulator allowing coupling of alternator with respective rotation speed reduction ratios when engine is provided with rotation speed in two different ranges. This unit may be formed by a potentiometer. ES Kind code of ref document: Training regulated by the Luxemburg State. Indeed, the control system proposed for the inductance variable permeability of the cylindrical type shown in Figure 17, is particularly advantageous in an application in static compensator.


Moreover, in these three-phase inductors, the control of the direct current magnetic flux may be accomplished by self-control using diode bridges, as in the case of single-phase inductance of Figure 2, or coura by inverse control with constant and adjustable direct current winding, superimposed on the enroulement’d’auto-control, on the control core N.

Please move the cursor to Figure 18 shows the characteristic curves of the cylindrical three-phase inductance of Figure 17 redressemet to the DC control ampere turns and in accordance with a self-control. System for converting at least one direct-current electric input to a multi-phase alternating-current electric output.

Lapsed in a contracting state announced via postgrant inform.

EP0010502A1 – Variable inductance – Google Patents

FR Free format text: As shown in Figures 8 to 11, harmonic levels, calculated for only one of the three-phase inductance phase of Figure 4, are very low and even negligible for some harmonics. Device for plasma arc working of tripahs – e. This means in particular that both machines have the same negative droop. Agriculture and plant production.

EPA1 – Variable inductance – Google Patents

Control process for a reversible electric generator-motor machine of a motor vehicle, and use of such a process. Physical activity and sports.

FR Ref legal event code: Sciences, Social and human sciences. The resultant magnetic field in triphad control core, will then be a function of the magnetic field generated by the rectified alternating current flowing in the winding self-control and, therefore, a function of the voltage level at the terminals PI- P2. This type of construction does not show magnetic legs for the return flow transient. On the other hand, the magnetic circuit N consists of a core one through which flows a continuous current by winding excited magnetic field disposed between the terminals Cl, C2.