SU1352548A1 - Actuator of swift-acting switching device - Google Patents

Abstract

The invention relates to electrical engineering, in particular, to drives of an induction-dynamic type of high-speed switching devices. The purpose of the invention is to increase the efficiency of the drive. The thyristor 7 commutes the current of the accelerating inductor 1 thyristor 8- braking inductor 2. The presence of diode 9 in the circuit of the control electrode of the thyristor 8 and the peak transformer 10 allows switching on the indicated thyristor only after disconnecting the thyristor 7. This achieves separate switching of the accelerating and brake inductors 7 and 8 and, consequently, drive efficiency increases. 2 Il. i (L With con ate SP 4; 00 qjue.i

Description

The invention relates to electrical engineering, in particular, to drives of an induction-dynamic type of high-speed switching devices.

The purpose of the invention is to increase the efficiency of the drive 5.

Fig. 1 schematically shows the structure of the proposed drive; 2 is a control circuit.

The drive contains an acceleration inductor-torus 1 and a brake inductor 2, a disk 3 of electrically conductive material fixed on a brush 4 connected to the moving contact 5 of an electrical apparatus. A capacitor drive 6, thyristors 7 and 8 are connected to the inductors. To the control electrode of the thyristor 8 is connected a diode 9, connected to the winding of the peak transformer 10, through which the bus passes the bus connected in series with the inductor 1.

The device works as follows

that when the accumulator 6 is discharged per ton, the brain inductor 2 finds the disk 3 at such a distance from the inductor that this ensures efficient operation of the moving parts of the drive. At the same time, the discharge current flows to the braking inductor 2, which increases the braking efficiency in comparison with the prototype.

In the open position, the rod fies any of the known latches (not shown in Fig. 1). Any of the known drives may be used for switching on (in FIG. 1 it is not a matter of 5).

 The proposed drive is characterized by a low level of shock loads, simplicity and high efficiency.

20 f

formula invented

The drive of the high-speed connection device containing spiral inductors, one of which

When opened, a pulse is accelerated, and the other is braking.

At the beginning of the discharge process, a voltage pulse is generated in the peak transformer 10 winding, however the peak transformer winding is connected in such a way that the field This pulse does not coincide with the polarity of diode 9. When accumulator 6 is discharged, the entire current of the first half-wave flows through the disconnecting inductor 1, which provides a higher CCW than in the prototype.

When the discharge current approaches zero, a voltage pulse is generated in the winding of the peak transformer 10, the polarity of which coincides with the polarity of diode 9. At this time, the capacitive drive 6 is recharged, so the thyristor 8 is unlocked and the capacitive drive 6 is discharged on the braking inductor 2. The drive parameters are selected in this way.

that when the accumulator 6 is discharged onto the braking inductor 2, the disk 3 is at such a distance from the inductor 2 that it provides effective braking of the moving parts of the drive. In this case, the discharge current flows only along the braking inductor 2, which increases the braking efficiency as compared to the prototype.

In the open position, the stem is fixed by any of the known latches (not shown in Fig. 1). Any of the known drives can be used for switching on (not shown in FIG. 1).

 The proposed drive is characterized by a low level of shock loads, simplicity and high efficiency.

 ABOUT

20 f

formula of invention

The drive of the high-speed switching device containing spiral inductors, one of which

thirty

a disk made of electrically conductive material mounted on a rod and installed between the said inductors, a capacitor, one plate of which is connected to one of the terminals of each inductor, characterized in that, in order to increase efficiency, a peak transformer is inserted in It and

35 diode, a positive capacitor plate is connected to one of the outputs of each inductor, the other winding terminal of the accelerating inductor is connected to the anode of the first thyristor, the cathode of which is connected to the negative side of the capacitor through the primary winding of the peak capacitor thyristor 45, the anode of which is connected to the minus plate of the capacitor, and the control; second electrode of the thyristor through a diode connected to the first output of the secondary winding peak-transform ora, the second terminal of which is connected to the cathode of the second thyristor.

40

50

Yu

Editor M. Andrushenko

Compiled by G. Korsakov

Tehred L. Serdyukova. Proof-reader I.Erdeyi

Order 5571/52 Circulation 697 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

cpue.Z

Claims (1)

Claim A drive of a high-speed switching device containing spiral inductors, one of which is accelerating and the other is braking, a disk of electrically conductive material mounted on a rod and installed between the indicated inductors, a capacitor, one lining of which is connected to one of the terminals of each inductor, characterized in that , in order to increase the efficiency, a peak transformer, first and second thyristors and a diode are introduced into it, a positive capacitor plate is connected to one of the outputs of each inductor, the other conclusion about the windings of the accelerating inductor are connected to the anode of the first thyristor, the cathode of which is connected to the negative side of the capacitor through the primary winding of the peak transformer, the other terminal of the winding of the braking inductor is connected to the cathode of the second thyristor, the anode of which is connected to the negative side of the capacitor, and the control electrode of the second thyristor through a diode connected to the first terminal of the secondary winding of the peak transformer, the second terminal of which is connected to the cathode of the second thyristor. fie. 2