SU1364119A1 - Electromagnet with built-in rectifier - Google Patents

Abstract

The invention relates to electrical engineering and can be used as an alternating current drive for various electromagnetic mechanisms, for example, a brake drive of lifting mechanisms and conveyors in mines. The aim of the invention is to improve the overall dimensions while maintaining power consumption. In the track mode, an electromagnet, the winding of which is divided into sections 1, 2 and 3, is rectified by a voltage applied from the output of the rectifier, made on tHpncTO-5, 6 and 7. When the electrically activated Mai Htira opens contact sensor KOHt- roll position cor. In this case, the power supply of the winding is realized by alternating current. I il. x about 4

Description

The invention relates to electrical engineering and can be used as a drive for alternating current for various electromagnetic mechanisms, such as a drive for the brakes of load-lifting mechanisms and conveyors in mines.

The aim of the invention is to improve the mass and size characteristics of the device while maintaining power consumption.

The drawing shows the electric

phases B and C. Similarly, when positive voltage half-waves pass through phases B and C, the current flows through the corresponding thyristor and winding sections of the electromagnet. At the same time, during the action of negative half-wave voltages of phases A, B and C, the current in the corresponding sections 1, 2 and 3 of the winding is maintained due to the emf of self-induction, which induces currents in the circuits

an electromagnet diagram with a built-in generator formed by sections U 2 and 3 by a driver, for example, powered by a source and shunting them from a three-phase voltage matching voltage generator. 5, 6 and 7: that the Electromagnet contains three sections I, 2, is a constant increase.

and 3 windings, one ends of which are connected and the reduction of magnetizing pulsations

are not connected to a common point, and the other are connected to the force, and therefore the increase is electromagnetic, respectively, to phases A, B, and. Sleepy effort. The proposed connection scheme for alternating voltage. Rectifier 4, made on thyristors 5, 6 and 7, connected by one electrodes (for example, cathodes) to a common point, which is connected to a common point of sections 1, 20 At the end of the course of the electromagnet core, 2 and 3 windings controlling the position of the straightener core 15 eliminates the need to create additional circuits for damping the magnetic field of sections 1, 2 and 3 of the electromagnet winding.

(anodes) connected to phases A, B, and C of the alternating voltage source. To the control electrodes of thyristors 5, 6, and 7, a control unit .8 is connected, which consists of current-limiting resistors 9, 10, and 11, one ends of which are connected to the control electrodes of thyristors 5, 6, and 7, while others are connected to a common point, and diodes 12, 13 and 14, cathodes

25

For example, the control circuit of the rectifier 4, the thyristors 5, 6 and 7 are locked and sections I, 2 and 3 of the electromagnet winding are switched to AC power. ELC-romagite remains on, since sections 1, 2 and 3 of the electromagnet windings are designed for holding force when supplied with alternating current. Depending on the initial effort

which are united in a common point, and, electromagnet, the proposed circuit rectifier anodes are connected to phases A, B, and C;

point of alternating voltage. In breaking one thyristor, the principle of a chain connection between the common connection point and the circuit bots will remain the same as described by the limiting resistors 9, 10 and. 11th.

and the common point of connection of the diodes 12, At the same time consumed by the electromagnet

13 and 14 is connected to the sensor control-5 power will be significantly less than when

core 15, which can serve as a direct current, as in this

The limit switch is live, the contacts to the co-case of decreasing the consumed current of the switch are opened at the end of the operating period. Large inductive resistance is applied to the sections 1, 2 and 3 of the winding, the re-Electromagnet works as the next current.

at once. In the initial state, the contact 40 When the condition of equality of the sensor of the control of the position of the core of 15 lock-required powers is fulfilled, the proposed installation is installed. When alternating voltage is applied to the control electrodes of the thyristors 5, 6, and 7, a positive voltage appears. In this case, the current passes through the Circuit: phases A, B, and C of the alternating voltage source — the corresponding diodes 12; Electromagnet with built-in rectifier — 13; and 14 — the sensor controlling the position of the transducer containing the winding, connected 15 — current-limiting resistive to a source of alternating voltage, ry 9, 10, and 11 — control electro-sensors for monitoring the position of the core and the voltage of thyristors 5, 6, and 7 — cathodes are a jagging power unit, characterized in that, from risistor 5, 6, and 7 - sections 1, 2 and 3, the purpose of improving the mass-abaritous indications are the windings and the corresponding phases A, B and Steles p In order to preserve the consumed power-source of alternating voltage. a sectionalized volume of the circulating moment of a positive winding was used, the rectifier unit was made on

The half-wave voltage in phase A is a thyristor 5 thyristors and contains a control unit, is unlocked and shunts section 1 of winding 55 performed on diodes and current limiting the electromagnet, and the current flows through the following circuit: resistors, and the number of thyristors

Phase A - thyristor 5 - sections 2 and 3 diodes and current-limiting resistors

windings of an electromagnet and, accordingly, the same number of winding sections, the first 45

Compared with the prototype, the performance has the best mass and weight characteristics.

Claims (1)

Invention Formula forces, and hence an increase in electromagnetic force. The proposed wiring diagram At the end of the course of the electromagnet core, the sensor for controlling the position of the ignitor core 15 rectifier eliminates the need for additional circuits for damping the magnetic field of sections 1, 2 and 3 of the electromagnet winding. For example, the control circuit of the rectifier 4, the thyristors 5, 6 and 7 are locked and sections I, 2 and 3 of the electromagnet winding are switched to AC power. ELC-romagite remains on, since sections 1, 2 and 3 of the electromagnet windings are designed for holding force when supplied with alternating current. Depending on the initial effort Electromagnet The proposed rectifier circuit. When the condition of equal power consumption is fulfilled, the proposed device is an Electromagnet with a built-in rectifier containing a winding connected to an alternating voltage source, a sensor for controlling the position of the core and an output unit, characterized in that In order to improve the mass-abaritious indices while maintaining the consumed power, a partitioned volume of Compared with the prototype, the performance has the best mass and weight characteristics. Invention Formula the water of the winding sections and the thyristor cathodes are interconnected, the second output of each winding section is connected to the anode of the corresponding thyristor, the anode of the corresponding diode and one of the terminals for connecting the alternating voltage source, the thyristor control electrodes are interconnected and through the position control sensor The core is connected to the integrated cathodes of the diodes of the control unit of the rectifier unit.