RU73563U1 - DEVICE FOR REGULATING ELECTRIC POWER CONSUMER ELECTRIC NETWORK - Google Patents

Abstract

The device for controlling the parameters of the electric network of the energy consumer is intended to increase the current strength and / or reduce the voltage of the electric consumer network. The device consists of a capacitor unit (1) installed in series with respect to the current source (2) and the connected consumer of electric energy (3). 2 s.p. f-ly, 2 ill.

Description

The utility model relates to the field of electrical engineering, in particular to devices that allow lowering the voltage and increasing the current strength of the consumer of electrical energy.

A known capacitor installation for compensating reactive power in networks, comprising a capacitor block formed of parallel-connected three-phase, three-wire capacitor coils (RU 44204, U1, H01G 15 / 00,2005.02.27).

This installation solves the problem of overvoltage and inrush currents, but does not allow to increase the current strength of the consumer.

A device is known for increasing the active power of an active-inductive consumer of electric energy, comprising an inductive element made in the form of a choke, and a capacitor bank, with the device being separate (RU No. 8535, U1, Н02К 17/04, 1998.11.16).

The device can be used for various consumers, while the growth of active power occurs due to an increase in the active component of the consumer voltage. In addition, the device is configured to connect only one consumer and only active-inductive.

The task that the claimed utility model solves is to expand the functionality of the device - the ability to connect one or more consumers of electricity to it, any, not just inductive, increase the current and / or reduce the voltage supplied to the consumer of electricity.

The present problem is solved in that in the device for controlling the parameters of the electric network of the consumer of electric energy containing a capacitor unit, according to a utility model, the capacitor unit is installed in series with respect to the current source and the connected consumer of electrical energy (active resistance).

The device can be made with a switch mounted in parallel.

The capacitor unit of the device can be made with electrolytic capacitors.

The inventive device is illustrated by drawings. Figure 1 presents the electrical diagram of the device, figure 1 is an electrical diagram of the device with a switch.

A device for controlling the parameters of the electric network of an electric energy consumer consists of a capacitor block 1, an electric power source 2, an electric power consumer 3, a switch 4.

A device for controlling the parameters of the electric network of the consumer of electric energy works as follows. When you turn on the device in the network, the voltage is divided between the capacitor unit 1 and the consumer of electric energy 3, which is an active resistance, which can consist of many parallel connected resistances. This makes it possible to obtain a large current at a low voltage on the resistance block. Moreover, this current is active and it cannot propagate outside this resistance block.

With large fluctuations in the magnitude of the voltage of the source of electricity and the voltage consumed by the consumer of electricity, at the time the device is connected to the network, a pulse increase in power occurs, which can lead to failure of the electricity consumer. In this case, it is necessary to use the inventive device with a switch 4 installed in the circuit in parallel.

When using electrolytic capacitors in the capacitor block, the latter are installed as standard with diodes.

Devices designed to solve a specific problem - increasing the current and / or lowering the voltage are performed with the capacitor unit of the specified parameters.

The operation of the device is illustrated by the following examples of its use in household electrical circuits.

Example 1. In a circuit with an alternating voltage of 220 V, protected by a 2 A fuse, an incandescent lamp with characteristics: 220 V, 150 W. When three lamps are connected in parallel to each other, the current in the circuit (determined by the formula: I = P: U, is (I = 150 W: 220 V = ~ 0.68 A, then 0.68 A * 3 = ~ 2.05 A )> 2 A) exceeded 2 A and the circuit breaker tripped, disconnecting the circuit (when one or two lamps were turned on, they burned in normal mode). If in the same circuit these same lamps were turned on through the inventive device, then when you turn on up to five lamps they burned in normal mode, without “knocking out” the machine; while the total current on the lamps was (I = 150 W: 220 V * 5) ~ 3.41 A. That is, when consumers are turned on

through the inventive device inside the resistance block - in this case, it is an incandescent lamp - the current increased.

Example 2. When the incandescent lamp with a nominal voltage of 4.8 V is connected to the 220 V network, the lamp burns out. When you turn on this lamp in the 220 V network through the inventive device (with a closed switch), the lamp burns in the normal mode. The lamp ignites when the circuit breaker opens. That is, when the consumer was turned on through the inventive device, the voltage decreased without the transformer power supply usually used in these cases.

Claims (3)

1. A device for controlling the parameters of the electric network of an electric energy consumer, comprising a capacitor unit, characterized in that the capacitor unit is installed in series with respect to the electric energy source and the connected electric energy consumer (active resistance). 2. The device according to claim 1, characterized in that it is made with a switch mounted in parallel. 3. The device according to claim 1, characterized in that the capacitor unit is made with electrolytic capacitors.