CN215870478U - New forms of energy box-type substation - Google Patents

Abstract

The utility model discloses a new energy box type transformer substation, which comprises: the oil-immersed transformer is internally filled with a transformer oil layer and an air layer, and the air layer is positioned above the transformer oil layer; the high-voltage cable chamber is provided with a high-voltage bushing and is connected with the oil-immersed transformer through the high-voltage bushing; the low-voltage control room is provided with a low-voltage sleeve, a tapping switch, a pressure gauge, a pressure release valve, an oil level gauge and an oil filler hole, and is connected with the oil-immersed transformer through the low-voltage sleeve. By using the new energy box type transformer substation, the oil-immersed transformer can also cope with the volume change situation of expansion caused by heat and contraction caused by cold of transformer oil in the working process without an oil conservator, so that parts such as a pressure release valve, an oil level gauge and the like are prevented from being exposed outdoors, the sealing failure probability of the parts is reduced, and the service life of the transformer substation is prolonged.

Description

New forms of energy box-type substation

Technical Field

The utility model relates to the field of power equipment, in particular to a new energy box type transformer substation.

Background

Transformers matched with the existing new energy box type transformer substation are most commonly Chinese type box type transformer substations and American type box type transformer substations.

The traditional structure of the Hua-type box-type substation is provided with an oil conservator, sleeves are arranged on the side face of an oil tank, and parts such as a tap switch, a pressure release valve and the oil conservator are uniformly distributed on a cover. The new energy box type transformer substation has severe service environment, and generally has high illumination intensity or serious salt fog. Because fittings such as tap changers, pressure relief valves, oil conservators and the like are exposed in the air, the sealing rubber ring is easy to age, and the sealing failure is caused. And the failure of sealing can lead to the fault of oil leakage of the outgoing line of the transformer, and when the condition is serious, moisture enters the transformer from the failed sealing surface to cause the failure of internal insulation, thus leading to the fault of burning the transformer.

The American case becomes and embeds load switch, fuse, and the sealed type structure that is filled with gas is inside the oil tank. An oil storage cabinet and a gas relay are not configured, and fittings such as a tap switch, a pressure relief valve and the like are arranged in the low-pressure chamber, so that the problem of oil leakage is solved. But because load switch, fuse set up inside the transformer tank, simplified the high-pressure chamber simultaneously, complicated transformer chamber, and pollute transformer oil easily, factor of safety does not have the hua style case and uprises.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the new energy box type transformer substation provided by the utility model can prevent parts from being exposed outdoors, so that the sealing failure probability of the parts is reduced, and the service life of the transformer substation is prolonged.

The embodiment of the utility model provides a new energy box type transformer substation, which comprises: the oil-immersed transformer is internally filled with a transformer oil layer and an air layer, and the air layer is positioned above the transformer oil layer; the high-voltage cable chamber is provided with a high-voltage bushing and is connected with the oil-immersed transformer through the high-voltage bushing; the low-voltage control room is provided with a low-voltage sleeve, a tapping switch, a pressure gauge, a pressure release valve, an oil level gauge and an oil filler hole, and is connected with the oil-immersed transformer through the low-voltage sleeve.

The new energy box type transformer substation provided by the embodiment of the utility model at least has the following beneficial effects:

when the new energy box type transformer substation is used, the transformer oil layer and the air layer filled in the oil-immersed transformer enable the oil-immersed transformer to be capable of coping with the volume change situation of expansion with heat and contraction with cold of the transformer oil in the working process without an oil conservator. In addition, since the position of the oil conservator is usually arranged outside the oil-immersed transformer, the connection position of the oil conservator and the oil-immersed transformer and the parts such as a gas relay, a pressure relief valve, an oil level gauge and the like are exposed to the air, thereby leading to the risk that these parts are susceptible to water ingress due to seal aging resulting in insulation failure within the transformer, therefore, the oil layer and the air layer of the transformer arranged inside ensure that the oil-immersed transformer can work normally without an oil conservator, meanwhile, in the embodiment of the utility model, parts such as a tap switch, a pressure gauge, a pressure release valve, an oil level indicator and the like are arranged in the low-voltage control chamber to ensure that a user can normally control the oil-immersed transformer, therefore, the problem that the parts are exposed to outdoor air is avoided, the probability of oil leakage and water inflow of the parts caused by aging of sealing parts of the parts is reduced, and the risk of insulation failure in the transformer is reduced. Meanwhile, a load switch and a fuse are not required to be arranged inside the oil tank, so that the safety factor of the new energy box type transformer substation can be improved.

According to some embodiments of the utility model, the oil-filled transformer comprises a first side, a second side, a third side and a fourth side, the high-voltage cable chamber is located at the first side, the low-voltage control chamber is located at the second side, and a heat sink is connected to the third side and/or the fourth side.

According to some embodiments of the utility model, the heat dissipation device is a transformer heat sink.

According to some embodiments of the utility model, the high voltage cable compartment comprises a high voltage panel, the high voltage bushing is arranged through the high voltage panel; the low-pressure control chamber comprises a low-pressure panel, the low-pressure sleeve is arranged in the low-pressure panel in a penetrating mode, and the tap changer, the pressure gauge, the pressure release valve, the oil level indicator and the oil injection hole are arranged on the low-pressure panel.

According to some embodiments of the utility model, a thermometer tube is also disposed on the low pressure panel.

According to some embodiments of the utility model, the high voltage bushing and/or the low voltage bushing is a dry bushing.

According to some embodiments of the utility model, the surfaces of the oil-filled transformer, the high-voltage cable compartment and the low-voltage control compartment are coated with a thermal insulation coating.

According to some embodiments of the utility model, the transformer further comprises a base, the oil-immersed transformer, the high-voltage cable chamber and the low-voltage control chamber are located above the base, and the base is provided with a hanging shaft used for carrying the transformer substation.

According to some embodiments of the utility model, the high voltage cable compartment and the low voltage control compartment are further provided with louvers.

According to some embodiments of the utility model, the high voltage cable compartment and the low voltage control compartment are further provided with waterproof eaves.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a front view of a new energy box substation according to an embodiment of the present invention;

fig. 2 is a top view of a new energy box-type substation according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an oil-immersed transformer according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a high-voltage panel according to an embodiment of the utility model;

fig. 5 is a schematic structural diagram of a low voltage panel according to an embodiment of the utility model.

Reference numerals:

an oil-immersed transformer 100; a high-voltage cable chamber 200; a low pressure control chamber 300; a base 400;

a first side 110; a second side 120; a third side 130; a fourth side 140; a heat sink 150; a high voltage bushing 210; a high voltage panel 220; a low-pressure bushing 310; a low voltage panel 320; a hanger shaft 410; a blind 420; a waterproof brim 430;

a tap changer 321; a pressure gauge 322; a pressure relief valve 323; an oil level gauge 324; an oil filler hole 325; a thermometer tube 326.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.

In the description of the present invention, unless otherwise explicitly defined, terms such as arrangement, installation, connection and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.

In the description of embodiments of the utility model, reference to the description of the term "one embodiment/implementation," "another embodiment/implementation," or "some embodiments/implementations," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least two embodiments or implementations of the disclosure, and the schematic representation of the term above does not necessarily refer to the same example embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiments of the present invention will be further explained with reference to the drawings.

Referring to fig. 1, the new energy box-type substation includes, but is not limited to, an oil-immersed transformer 100, a high-voltage cable chamber 200, and a low-voltage control chamber 300. Specifically, the oil-immersed transformer 100 is filled with a transformer oil layer (not shown in the figure) and an air layer (not shown in the figure), and the air layer is located above the transformer oil layer; the high-voltage cable chamber 200 is provided with a high-voltage bushing 210, and the high-voltage cable chamber 200 is connected with the oil-immersed transformer 100 through the high-voltage bushing 210; the low-pressure control chamber 300 is provided with a low-pressure sleeve 310, a tap switch 321, a pressure gauge 322, a pressure relief valve 323, an oil level gauge 324 and an oil filling hole 325, and the low-pressure control chamber 300 is connected with the oil-immersed transformer 100 through the low-pressure sleeve 310.

It can be understood that, when the new energy box-type substation is used, the transformer oil layer and the air layer filled in the oil-immersed transformer 100 enable the oil-immersed transformer 100 to cope with the volume change situation of the transformer oil expanding with heat and contracting with cold in the working process without an oil conservator. In addition, since the oil conservator is usually disposed outside the oil-immersed transformer 100, the connection position between the oil conservator and the oil-immersed transformer 100, and the parts such as the gas relay, the pressure release valve 323, and the oil level gauge 324 are exposed to the air, so that the parts are prone to water inflow due to aging of the sealing member and generate a risk of insulation failure inside the transformer, therefore, the oil layer and the air layer of the transformer disposed inside enable the oil-immersed transformer 100 to work normally without the oil conservator, meanwhile, the embodiments of the present invention dispose the parts such as the tap switch 321, the pressure gauge 322, the pressure release valve 323, and the oil level gauge 324 inside the low-voltage control chamber 300 to ensure normal operation of the oil-immersed transformer 100 by the user, thereby avoiding the problem of exposure of the parts to the outdoor air, and reducing the probability of oil leakage and water inflow of the parts due to aging of the sealing member, thereby reducing the risk of insulation failure inside the transformer.

The air layer is an air layer containing no moisture, so that the air layer can ensure the normal operation of the oil-immersed transformer 100 without affecting the insulation effect of the transformer oil layer.

Illustratively, as shown in fig. 3, the oil-filled transformer 100 includes a first side 110, a second side 120, a third side 130, and a fourth side 140, the high-voltage cable chamber 200 is located on the first side 110, the low-voltage control chamber 300 is located on the second side 120, and the heat sink 150 is connected to the third side 130 and/or the fourth side 140.

It is understood that the oil-filled transformer 100 generates heat during operation, the heat accumulation accelerates the aging of the insulation material inside the transformer, and the heat dissipation in the case of an air-cooled transformer is only due to the heat conduction from the surface of the transformer. However, the efficiency of heat dissipation by the heat dissipation area on the surface of the transformer is low, so the heat dissipation device 150 is provided to accelerate heat dissipation, thereby effectively controlling the temperature of the transformer, reducing the aging probability of the insulating material inside the transformer, and prolonging the service life of the oil-immersed transformer 100.

Illustratively, the heat sink 150 is a transformer heat sink. It can be understood that the transformer heat sink can effectively increase the heat dissipation area, thereby controlling the temperature of the transformer and prolonging the service life of the oil-immersed transformer 100. The transformer heat sink may be a high-quality cold-rolled steel sheet or a 08AL steel sheet, and this embodiment does not limit this.

Referring to fig. 1 to 5, exemplarily, the high voltage cable compartment 200 includes a high voltage panel 220, and the high voltage bushing 210 is inserted into the high voltage panel 220; the low pressure control chamber 300 includes a low pressure panel 320, a low pressure bushing 310 is inserted into the low pressure panel 320, and a tap switch 321, a pressure gauge 322, a pressure relief valve 323, an oil level gauge 324, and an oil filler hole 325 are disposed on the low pressure panel 320.

It can be understood that the parts such as the tap switch 321, the pressure gauge 322, the pressure release valve 323, the oil level gauge 324 and the oil filling hole 325 are arranged on the low-pressure panel 320 of the low-pressure control chamber 300, so that the parts can be prevented from being exposed to outdoor air, the condition that oil leakage and water inflow of the parts affect the internal insulation effect of the transformer due to aging of sealing parts of the parts can be reduced, in addition, the parts are uniformly distributed on the low-pressure panel 320, the operation of a user can be facilitated, the distribution of internal wires of the transformer substation can be simplified, and the use convenience of the device can be improved.

Illustratively, as shown in FIG. 5, a thermometer tube 326 is also provided on the low pressure panel 320. It can be understood that the working process of the oil-filled transformer 100 may affect the temperature of the oil-filled transformer itself, and the aging of the insulating material inside the transformer may be accelerated by the excessively high temperature, so that the arrangement of the thermometer tube 326 may facilitate the observation of the internal temperature of the oil-filled transformer 100, thereby controlling the execution of the heat dissipation operation and prolonging the service life of the transformer substation.

Illustratively, high voltage bushing 210 and/or low voltage bushing 310 are dry bushings. The transformer bushing is used for leading high-voltage and low-voltage leads inside a transformer to the outside of an oil tank, is used as a lead wire for insulation against the ground, plays a role of a fixed lead wire and is one of important current-carrying elements of the transformer. The dry type sleeve pipe generally refers to a glass fiber reinforced plastic dry type transformer sleeve pipe, and the glass fiber reinforced plastic dry type transformer sleeve pipe adopts a glass fiber reinforced plastic composite material as internal insulation and a silicon rubber composite material as external insulation, so that compared with the traditional sleeve pipe, the dry type transformer sleeve pipe has the advantages of oil free, air free, porcelain free, explosion-proof, environment-friendly, maintenance-free, strong pollution flashover resistance, long service life and the like, and therefore, the service life of a transformer substation can be effectively prolonged by using the dry type sleeve pipe, and the maintenance cost of the new energy source box type transformer substation is reduced.

Illustratively, the surfaces of the oil-filled transformer 100, the high-voltage cable compartment 200 and the low-voltage control compartment 300 are coated with thermal insulation coatings. It can be understood that the transformer substation can generate heat in normal operation, and the coated heat insulation coating can avoid the user from being scalded by overhigh temperature, thereby improving the safety of the transformer substation in use.

Referring to fig. 1, the new energy box-type substation further includes a base 400, where the oil-immersed transformer 100, the high-voltage cable chamber 200, and the low-voltage control chamber 300 are located above the base 400, and the base 400 is provided with a hanging shaft 410, where the hanging shaft 410 is used for carrying the substation. It can be understood that the transformer substation is large in size, and the transformer substation is usually located in a remote place, and the suspension shaft 410 can be conveniently carried by a user, so that the convenience in use of the transformer substation is improved.

Illustratively, as shown in fig. 1, the high-voltage cable compartment 200 and the low-voltage control compartment 300 are further provided with louvers 420. It can be understood that, because the working process of transformer substation can generate heat, consequently, set up shutter 420 and be favorable to inside hot-air and outside air's circulation to improve the radiating effect of transformer substation, improve the life of transformer substation.

Illustratively, as shown in fig. 1, the high-voltage cable chamber 200 and the low-voltage control chamber 300 are further provided with a waterproof eaves 430. It can be understood that the waterproof eaves 430 can reduce water inflow inside the transformer substation in rainy days and other situations, so that the situation that external moisture enters the oil-immersed transformer 100 from the sealing position of the internal part after the internal part sealing element is aged is reduced, the service life of the new energy box-type transformer substation is prolonged, and the maintenance cost of the new energy box-type transformer substation is reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims (10)

1. A new energy box-type substation is characterized by comprising:

the oil-immersed transformer is internally filled with a transformer oil layer and an air layer, and the air layer is positioned above the transformer oil layer;

the high-voltage cable chamber is provided with a high-voltage bushing and is connected with the oil-immersed transformer through the high-voltage bushing;

the low-voltage control room is provided with a low-voltage sleeve, a tapping switch, a pressure gauge, a pressure release valve, an oil level gauge and an oil filler hole, and is connected with the oil-immersed transformer through the low-voltage sleeve.

2. The new energy box substation of claim 1, characterized in that: the oil-immersed transformer comprises a first side, a second side, a third side and a fourth side, the high-voltage cable chamber is located on the first side, the low-voltage control chamber is located on the second side, and the third side and/or the fourth side are/is connected with a heat dissipation device.

3. The new energy box substation of claim 2, characterized in that: the heat dissipation device is a transformer heat dissipation fin.

4. The new energy box substation of claim 1, characterized in that: the high-voltage cable chamber comprises a high-voltage panel, and the high-voltage bushing is arranged in the high-voltage panel in a penetrating manner; the low-pressure control chamber comprises a low-pressure panel, the low-pressure sleeve is arranged in the low-pressure panel in a penetrating mode, and the tap changer, the pressure gauge, the pressure release valve, the oil level indicator and the oil injection hole are arranged on the low-pressure panel.

5. The new energy box substation of claim 4, characterized in that: and the low-pressure panel is also provided with a thermometer tube.

6. The new energy box substation of claim 1, characterized in that: the high voltage bushing and/or the low voltage bushing are dry bushings.

7. The new energy box substation of claim 1, characterized in that: and heat insulation coatings are coated on the surfaces of the oil-immersed transformer, the high-voltage cable chamber and the low-voltage control chamber.

8. The new energy box substation of claim 1, characterized in that: the transformer substation comprises an oil-immersed transformer, a high-voltage cable chamber and a low-voltage control chamber, and is characterized by further comprising a base, wherein the oil-immersed transformer, the high-voltage cable chamber and the low-voltage control chamber are located above the base, the base is provided with a hanging shaft, and the hanging shaft is used for carrying the transformer substation.

9. The new energy box substation of claim 1, characterized in that: the high-voltage cable chamber and/or the low-voltage control chamber are/is also provided with a shutter.

10. The new energy box substation of claim 1, characterized in that: and the high-voltage cable chamber and/or the low-voltage control chamber are/is also provided with a waterproof eaves.

Images