CN202196636U - Energy feedback reactor - Google Patents

Abstract

The utility model discloses an energy repayment reactor belongs to electrical equipment technical field, mainly by the iron core, the coil, the copper bar, vertical pull rod, horizontal pull rod, go up the holder, lower holder and channel-section steel seat constitute, the coil passes through the firm suit of impregnating varnish in the iron core, and on the iron core post was walked around, the copper bar welds in the coil, the iron core is left, the right side is respectively with vertical pull rod, horizontal pull rod is fixed, the iron core is upper and lower respectively with the holder, lower holder presss from both sides tightly, still install the ground connection sign on the lower holder, the iron core passes through the fastener to be fixed on the channel-section steel seat, the iron core adopts high-quality low-loss high-quality silicon steel sheet, the iron core post falls into even segment by a plurality of air gaps, the air gap adopts epoxy laminated glass cloth board to make the interval, coil and iron core adopt H level impregnating varnish to firmly combine together, stem part fastener adopts nonmagnetic, Light weight, low noise, good filtering effect, fast heat dissipation, low temperature rise, long service life and the like.

Description

Energy feedback reactor

technical field

The utility model relates to a reactor, in particular to an energy feedback reactor, and belongs to the technical field of electrical equipment.

Background technique

Reactor is an electrical device wound by metal wires with reactance to reduce short-circuit current. The reactor used in the power network is essentially an air-core coil without magnetic material; when a short circuit occurs in the power system, A large short-circuit current will be generated. If it is not limited, it is very difficult to maintain the dynamic stability and thermal stability of electrical equipment. Therefore, in order to meet the requirements of the breaking capacity of some circuit breakers, a series reactance is often placed at the outlet circuit breaker. To increase the short-circuit impedance and limit the short-circuit current.

The same kind of reactors currently used in the market usually use copper wires wound on the insulating cylinder as a coil, and the upper and lower channel steels are fastened to the iron core column to form the main structure of the reactor. The wires are transposed multiple times during the winding process. , the surface is covered with a layer of insulating layer, which affects the heat dissipation effect. There are many problems such as poor filtering effect, high temperature and high noise. In addition, the lead terminals are easy to corrode, which affects its normal operation, and the service life of the reactor is short.

Contents of the invention

In order to solve the deficiencies in the prior art, the utility model provides an energy feedback reactor, which has the advantages of small size, light weight, low noise, good filtering effect, fast heat dissipation and low temperature rise, and long life.

The purpose of this utility model is achieved by the following technical solutions

The energy feedback reactor is mainly composed of iron core, coil, copper bar, longitudinal tie rod, transverse tie rod, upper clamp frame, lower clamp frame and channel steel seat. On the core column, the copper bars are welded in the coil, the left and right sides of the iron core are respectively fixed by longitudinal tie rods and transverse tie rods, the upper and lower sides of the iron core are respectively clamped by the upper clamp frame and the lower clamp frame, and the lower clamp frame is also equipped with a grounding Logo, the iron core is fixed on the channel steel seat by fasteners.

The iron core is a low-loss high-quality silicon steel sheet, and the iron core column is divided into uniform small sections by a plurality of air gaps, and epoxy laminated glass cloth boards are arranged in the air gaps to ensure that the reactance air gap does not change during operation.

The coils are wound by high-quality wires, arranged closely and evenly, without an insulating layer on the outside, and have excellent aesthetics and good heat dissipation performance.

The coil and iron core are firmly combined with H-grade impregnating paint, which not only greatly reduces the noise during operation, but also has a very high heat resistance level, which can ensure that the reactor can be safely and noise-free even at high temperatures to run.

The fasteners of the core column of the reactor are made of non-magnetic materials to ensure that the reactor has a high quality factor and a low temperature rise, thereby ensuring a good filtering effect.

The exposed parts are treated with anti-corrosion treatment, and the lead-out terminals are tinned copper tube terminals.

The utility model is usually installed in the input of the front end of the rectifier of the frequency conversion circuit, which can resist the transmission of the harmonics generated by the frequency converter to the power grid, reduce the interference of the harmonics generated by the frequency conversion to other components, improve the quality of the power grid, increase the power factor and limit the abnormality of the power grid voltage Fluctuation and inrush current on the grid, smooth waveform, and reduce the impact on the inverter.

Owing to adopting above technical scheme, the utility model has following beneficial effect:

1) Epoxy laminated glass cloth boards are used as intervals to ensure that the reactance air gap does not change during operation;

2) It is wound with high-quality wires, arranged tightly and evenly, without an insulating layer on the outside, with excellent aesthetics and good heat dissipation performance;

3) The noise during operation is greatly reduced, and it has a very high heat resistance level, which can ensure that the reactor can operate safely and without noise at high temperature;

4) The fasteners of the core column are made of non-magnetic materials to ensure that the reactor has a high quality factor and a low temperature rise to ensure a good filtering effect;

5) The wiring terminals and exposed parts are treated with anti-corrosion treatment, which ensures the normal operation of the reactor and prolongs the service life of the reactor;

6) It also has the characteristics of small size and low temperature rise.

Description of drawings

Fig. 1 is the structural representation of an embodiment of the utility model

Figure 2 is a schematic diagram of the side structure of Figure 1

In the figure: 1-iron core, 2-coil, 3-copper bar, 4-longitudinal tie rod, 5-transverse tie rod, 6-upper clamp, 7-lower clamp, 8-grounding mark, 9-epoxy lamination Glass cloth plate, 10-iron core column, 11-channel steel seat, 12-fastener.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described

As shown in Figure 1 and Figure 2, the energy feedback reactor is mainly composed of iron core, coil, copper bar, longitudinal tie rod, transverse tie rod, upper clamp frame, lower clamp frame and channel steel seat. In the iron core and wound on the iron core column, the copper bar is welded in the coil, the left and right sides of the iron core are respectively fixed by longitudinal tie rods and transverse tie rods, and the top and bottom of the iron core are respectively clamped by upper and lower clamps , The grounding mark is also installed on the lower clamp frame, and the iron core is fixed on the channel steel seat through fasteners.

Further, the iron core is a low-loss high-quality silicon steel sheet, and the iron core column is divided into uniform small sections by a plurality of air gaps, and epoxy laminated glass cloth boards are arranged in the air gaps to ensure that the reactance air gap does not change.

Further, the coils are wound by high-quality wires, arranged tightly and evenly, without an insulating layer on the outside, and have excellent aesthetics and good heat dissipation performance.

Further, the coil and the iron core are firmly combined with H-grade impregnating varnish.

Further, the fasteners of the core column of the reactor are made of non-magnetic materials, so as to ensure that the reactor has a high quality factor and low temperature rise, thereby ensuring a good filtering effect.

The utility model adopts high-quality silicon steel sheets and wires refined by advanced technology, and is usually installed in the input of the front end of the rectifier of the frequency conversion circuit, which can resist the transmission of the harmonics generated by the frequency converter to the power grid, and reduce the impact of the harmonics generated by the frequency conversion on other components. Interference, improve the quality of the grid, increase the power factor and limit the abnormal fluctuation of the grid voltage and the impact current on the grid, smooth the waveform, and reduce the impact on the inverter.

Claims (5)

1. The energy feedback reactor is mainly composed of iron core, coil, copper bar, longitudinal tie rod, transverse tie rod, upper clamp frame, lower clamp frame and channel steel seat. It is characterized in that the coil is firmly set on the iron core by impregnating paint Inside, and wound on the iron core column, the copper bar is welded in the coil, the left and right sides of the iron core are respectively fixed by longitudinal tie rods and transverse tie rods, the upper and lower sides of the iron core are respectively clamped by the upper clamp frame and the lower clamp frame, and the lower clamp frame There is also a grounding mark installed on the frame, and the iron core is fixed on the channel steel seat through fasteners. 2. The energy feedback reactor according to claim 1, characterized in that, the iron core is a low-loss high-quality silicon steel sheet, and the iron core column is divided into uniform small sections by a plurality of air gaps, and an epoxy layer is arranged in the air gaps Pressed glass cloth. 3. The energy feedback reactor according to claim 1, characterized in that, the coil is wound with high-quality wire. 4. The energy feedback reactor according to claim 1, characterized in that, said coil and iron core are firmly combined with H-grade impregnating varnish. 5. The energy feedback reactor according to claim 1, characterized in that said fasteners are made of non-magnetic materials.

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