SU1455366A1 - Double-wound electromagnet - Google Patents

Abstract

The invention relates to electromagnets of alternating current and can be widely used in power supply circuits and control to electric drives. The aim of the invention is to reduce energy losses. When an alternating voltage is applied to the electromagnet, windings I and 2 and capacitors 4 and 5 flow currents. When the inductive resistance of the windings is partially or fully compensated by the capacitance of the capacitors, the currents in the branches x increase to a value sufficient to force the electromagnet to turn on. Contact 3 is closed. Capacitors 4 and 5 are connected in parallel with windings 2 and 1. The current in windings 1 and 2 decreases to the magnitude of the holding current. In addition, parallel connection of capacitors allows compensation of reactive power and reduces energy losses in the supply circuit. 1 il.

Description

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The invention relates to alternating current electromagnets and may be widely used in circuits. power supply and control wiring amiv

The purpose of the invention is to reduce the loss of electricity.

The drawing shows the electrical circuit of the proposed electromagnet.

The electromagnet contains two windings 1 and 2.E included in the opposite

five

The bridge bridge 5 connects a contact controlled by an electromagnet, capacitors 4 and 5 j placed in the bridge diagonal included in the two other arms of the bridge. Output slots 6 and 7 can be connected to a ground current source.

The device works as follows

In the initial state, the shoulders 1 4 and 5 5 of the bridge form parallel 1 etvi. When a voltage is applied to the Sheremennog electromagnet, currents flow through both 1 etv m, which create magnetic currents in the windings 1JOT. When the inductive resistance of the windings is partially or fully compensated by the capacitance of the capacitors, the currents in the branches x increase to iHHbSj large enough to force the electromagnet to turn on. The armature of the electromagnet makes a working stroke and removes the contact Ze. In this case, capacitors 4 and 5 are connected in parallel with the windings 2 and 1, respectively; the windings are designed so that

1455366. 2

hold cor. Parallel polarization of capacitors and windings allows the combination of reactive (inductive) power and the current in the external circuit all the way from the electromagnet to the generator of the power plant decreases. This CHi-shat power losses in the mains, including the intermediate elements - increasing and supporting transformers. Power losses depend on the amount of current in the square, therefore, the current decrease in the external circuit by 2 times, which is easily achieved, reduces the power loss and power consumption 4 times.

Thus, the electric power losses in the proposed device are reduced both by reducing the current in the windings and by reducing the current in the unbranched part of the circuit.

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Claims (1)

Invention Formula A two-winding electromagnet, designed to be powered by an alternating current network, contains two windings and a contact associated with the moving part of an electromagnet, about one l and -. In order to reduce energy losses, two capacitors are introduced into it, the windings and capacitors are connected so that they form a bridge circuit in which the windings are connected to the opposite shoulders of the bridge, as a contact connected to the moving part of the electromagnet, a closing in the conductor mode, the current through the windings is dd cycle, and the specified küntact is included ..... ...... ritTaT maTTT ll f was minimal, but sufficient for Chen to the diagonal of the bridge. Invention Formula A two-winding electromagnet, designed to be powered by an alternating current network, contains two windings and a contact associated with the moving part of an electromagnet, about one l and -. In order to reduce energy losses, two capacitors are introduced into it, the windings and capacitors are connected so that they form a bridge circuit in which the windings are connected to the opposite shoulders of the bridge, as a contact connected to the moving part of the electromagnet, a closing contact specified  ritTaT maTTT ll f chen to the diagonal of the bridge.