Патент USA US2088289код для вставки
juiy 2-7, 1937. P. CIBIE 2,088,289 VOLTAGE REGULATING APPARATUS FOR ELECTRIC CURRENT GENERATORS Filed JUIIQ 12, 1954 HgrlI A? (f r 1 e2 1 Q1 ‘E922. / ,4 / /: l/ .1? /i l /' l _- 1/ / / / ,;_ @51m31 GK n INVENTO/E PIERRE C, 8,5 “ME 4% Patented July 27, 1937 2,088,289 UNITED STATES PATENT OFFICE 2,088,289 VOLTAGE REGULATING APPARATUS FOR ELECTRIC CURRENT GENERATORS Pierre Cibié, Paris, France Application June 12, 1934, Serial No. ‘730,222 In France June 21, 1933 1 Claim. (Cl. 17l-—222) This invention relates to a voltage regulating the simultaneous decrease of both attractions. apparatus for electric current generators. The above device has the two following chief An object of the present invention is the pro disadvantages: , vision of a voltage regulating apparatus which 1st.—The secondary winding e2 being located 5 may be used for different types of dynamos and immediately at the terminals of the inductors, which will be extremely responsive and sensi_ the electric current that passes through it is a tive. function of that which ?ows through the induc The above and other objects of the present tors and consequently depends upon the construc invention may be realized through the provision tion of said inductors. This has the drawback 10 of a regulating device having a secondary winding of requiring an adjustment of the regulating de 10 which is shunted to the terminals of a non vice for each type of dynamo. inductive resistance or upon a part of such resist~ 2nd.—The secondary winding .having an im ance which itself is shunted to the terminals of portant self induction does not easily take up the dynamo inductor. the supplementary current from the inductors The invention will appear more clearly from and said supplementary current generates at 15 the following detailed description when taken in connection with the accompanying ‘drawing showing a preferred embodiment of the inven tive idea. In the drawing: 20 Figure 1 is a diagram showing a device known in prior art. - Figure 2 is a diagram illustrating the strength of the current. 25 Figure 3 illustrates diagrammatically a device constructed in accordance with the principles of the present invention. Voltage regulating apparatus for electric cur rent generators of the type diagrammatically 3 O illustrated in Fig. 1 of the appended drawing are the terminals of the contact piece 0 a consider able electromotive power which ensures the pas sage of the spark when the contact pieces are at a considerable distance apart, thus causing very important displacements of the blade and in some 20 cases the persistence of the spark. Said displacements of the blade reduce the frequency of its vibrations. It will be seen from the diagram in Fig. 2 that when the frequency decreases the maximum strength of the current which has been reached during the operation of the regulator to produce the same mean strength in the inductors in creases. This increase of the maximum strength pro duces the increase of the power brought out in the well known. The circuit of the inductors i of the generator is normally closed by the carbon con spark at the disruptive moment and consequently tact c. results in a more rapid and pro?tless destruction When the voltage at the terminals is higher than the voltage for which the regulating ap paratus has been adjusted the blade :2 is at tracted. Owing to the self induction of the induc tors the passage of the current is not instantane ously interrupted, but is kept up by a spark be 40 tween the two contact parts c of the regulating device. of the contact pieces. _ It will therefore be more advantageous to in crease as much as possible the vibrating speed of the blade. Fig. 3 of the annexed drawing illustrates dia grammatically the present improvement and re— ferring to said ?gure it will be seen that the non 40 inductive resistance R is branched at the ter The winding e2 which has a low self induction ~ minals of the inductors i between two points of relatively to its resistance and is branched at the which the secondary winding e2 of the regulating inductor terminals takes up a portion of this sup plementary current, but owing to its own self device is branched. The other elements are the 46 same as before. induction it does not absorb it as completely as At the moment when the blade p is attracted a real resistance would do. Owing to the decrease of the current in said the supplementary current produced by the in winding or even to its total reduction resulting ductors is almost completely taken up by the noninductive resistance R. The electromotive 50 from the opening of the contact pieces, the at power produced at the terminals of the contacts traction caused by said winding decreases. is low and the spark is very quickly put out. The The voltage of the dynamo decreases simul taneously as well as the attraction caused by the current being annihilated in the circuit of the primary winding 61 and the blade rises again 5 m rapidly under the action of the spring r owing to contacts, the voltage of the dynamo decreases immediately, the current in the secondary wind 66 2 9,088,289 ing ‘e’ also decreases and the blade immediately armature and the inductor of a generator, said rises. This mode of coupling results therefore in re inductor having one end connected with one end of said armature; a contact comprising a sta duclng the amplitude of the mrvement oi the blade and in increasing the frequency of its vi brations. tionary member and a movable member adapted to vibrate against said stationary member, said stationary member being directly connected with This causes on the one part a reduction of the the opposite end of said inductor, said movable length oi’ the spark and on the other part, as seen in the diagram in Fig. 2, a reduction of the power 10 brought out in said spark, so that the oxidation oi’ the contacts and all the resulting incon veniences are almost completely avoided. This member being connected with the opposite end of allows of replacing ‘he carbon contacts by metal contacts. ‘ The secondary win ding e2 being moreover closed by a resistance, the current that passes through it is independent 0! the characteristic leatures of the dynamo in use so that the same regulating device is appropriate for all types of 20 dynamos. ‘ What I claim and desire to secure by Letters Patent oi the United States is: A voltage regulating device for electrical gen erators comprising in combination with the said armature, a non-inductive resistance con nected to the ?rst-mentioned end oi’ said inductor and connected to said stationary member, where by said non-inductive resistance is connected in parallel with‘said inductor and in series with said stationary member,‘ and an electro-magnet adapted to attract said movable contact member, whereby the current in the inductor is interrupted when said contact members are ‘separated from each other, said electro-magnet comprising a primary winding connected in parallel with said armature and a secondary winding connected in parallel with at least a portion of said non inductive resistance. PIERRE cnsns.