CN214705622U

CN214705622U - Transformer for prepackage type transformer substation

Info

Publication number: CN214705622U
Application number: CN202120463350.7U
Authority: CN
Inventors: 张太平; 黄宁宇
Original assignee: Shanghai Youbian Power Technology Co ltd
Current assignee: Shanghai Youbian Power Technology Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-11-12
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses a prepackage type transformer substation uses transformer, it relates to transformer technical field. The transformer body has been placed in the oil tank, the oil tank intussuseption is filled with transformer insulating oil, install the case lid on the oil tank, install multi-functional protector on the case lid respectively, the elbow type cable head, low pressure integral type sleeve pipe, the oil level gaugember, high-pressure full skirt integral type sleeve pipe and tap switch, the transformer body is connected fixedly through connecting plate and case lid, the transformer body is by the iron core, the folder, low-voltage coil and high-voltage coil constitute, be equipped with voltage regulation on the high-voltage coil and use the branch coil, low-voltage coil, high-voltage coil is connected to low pressure integral type sleeve pipe through the lead wire respectively, high-pressure full skirt integral type sleeve pipe, the branch coil on the high-voltage coil is connected to tap switch. The utility model discloses collect multiple device, function in an organic whole, simple to operate effectively promotes the reliability of prepackage type transformer substation operation, avoids the potential safety hazard, ensures product safe operation, and application prospect is wide.

Description

Transformer for prepackage type transformer substation

Technical Field

The utility model relates to a transformer technical field, concretely relates to prepackage type transformer for transformer substation.

Background

The prefabricated transformer substation is a brand-new transformer substation which is built up after civil engineering transformer substations, and is especially suitable for urban network construction and transformation.

The transformer is used as a main component of a prefabricated substation, a conventional distribution transformer is directly installed in a transformer room for connection, high-voltage and low-voltage conductive terminals of the conventional transformer are all exposed structures, the prefabricated substation is usually used as outdoor mobile power supply equipment, particularly, potential safety hazards such as oxidation loosening, moisture leakage and the like exist in the high-voltage exposed structures, and the conventional transformer prefabricated substation cannot acquire data or needs to additionally pretend a related data acquisition device, so that the conventional transformer prefabricated substation is troublesome.

In order to solve the above problems, it is particularly necessary to design a novel transformer for a pre-installed substation.

Disclosure of Invention

The utility model aims at providing a transformer for prepackage type transformer substation, simple structure, reasonable in design, simple to operate effectively promotes the reliability of prepackage type transformer substation operation, avoids the potential safety hazard, ensures product safe operation, and the practicality is strong, easily uses widely.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a transformer for a pre-installed transformer substation comprises an oil tank, a multifunctional protector, an elbow-shaped cable head, a low-voltage integrated sleeve, a tank cover, an oil level gauge, a high-voltage umbrella skirt integrated sleeve, transformer insulating oil, a tap switch and a transformer body, wherein the transformer body is placed in the oil tank, the transformer insulating oil is filled in the oil tank, the tank cover is installed on the oil tank, the multifunctional protector, the elbow-shaped cable head, the low-voltage integrated sleeve, the oil level gauge, the high-voltage umbrella skirt integrated sleeve and the tap switch are respectively installed on the tank cover, the transformer body is fixedly connected with the tank cover through a connecting plate, the transformer body comprises an iron core, a clamping piece, a low-voltage coil and a high-voltage coil, the high-voltage coil is provided with the tap coil for voltage regulation, and the low-voltage coil and the high-voltage coil are respectively connected to the low-voltage integrated sleeve and the high-voltage umbrella skirt integrated sleeve through leads, the tap coil on the high-voltage coil is connected to a tap switch.

Preferably, the lower end of the high-voltage shed integrated sleeve is connected with the high-voltage coil outgoing line and sealed in the oil tank, the high-voltage shed integrated sleeve is insulated and protected by transformer insulating oil, and the upper end of the high-voltage shed integrated sleeve is connected with the elbow-shaped cable head in a plugging and pulling mode.

Preferably, the lower end of the low-voltage integrated sleeve is connected with a low-voltage coil lead and sealed in an oil tank, the low-voltage integrated sleeve is insulated and protected by transformer insulating oil, and the upper end of the low-voltage integrated sleeve is directly connected with a cable or copper bar of a pre-installed transformer substation; the low-voltage integrated sleeve is provided with a protective cover, so that electric shock can be prevented and oxidation can be slowed down.

Preferably, the live conversion part of the tap switch is connected with a tap voltage regulating coil of the high-voltage coil inside the oil tank, and the requirements for different voltages can be met through adjustment of an external knob.

Preferably, the inside of the multifunctional protector is communicated with the inside of the transformer oil tank, so that the information such as the oil level, the temperature, the fault and the like in the transformer is collected, signals are output to the prefabricated substation, and the running condition of the transformer is monitored in real time.

Preferably, the box cover is connected and sealed with the oil tank through bolts, and a corrosion-resistant and weather-resistant sealing rubber strip is arranged between the oil tank and the box cover.

The utility model has the advantages that: the device is compact in structure, integrates multiple devices and functions, is convenient to install, can effectively improve the running reliability of the prefabricated substation, avoids potential safety hazards, ensures the safe running of products, and has wide application prospect.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a top view of fig. 1.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 3, the following technical solutions are adopted in the present embodiment: the utility model provides a prepackage type transformer for transformer substation, includes oil tank 1, multi-functional protector 2, elbow type cable head 3, low pressure integral type sleeve pipe 4, case lid 5, oil level gaugember 6, high-pressure full skirt integral type sleeve pipe 7, transformer insulating oil 12, tap changer 13 and transformer ware body, installs case lid 5 on the oil tank 1, and case lid 5 is connected sealedly through bolt and oil tank 1, is equipped with corrosion-resistant, resistant joint strip between oil tank 1 and the case lid 5, case lid 5 on install multi-functional protector 2, elbow type cable head 3, low pressure integral type sleeve pipe 4, oil level gaugember 6, high-pressure full skirt integral type sleeve pipe 7 and tap changer 13 respectively, transformer ware body pass through the connecting plate and be connected fixedly with case lid 5, transformer ware body is placed in oil tank 1 to fill transformer insulating oil 12.

The transformer body comprises an iron core 8, a clamping piece 9, a low-voltage coil 10 and a high-voltage coil 11, a tapping coil for voltage regulation is arranged on the high-voltage coil 11, the low-voltage coil 10 and the high-voltage coil 11 are respectively connected to a low-voltage integrated sleeve 4 and a high-voltage umbrella skirt integrated sleeve 7 through lead wires and led out, and the tapping coil on the high-voltage coil 11 is connected to a tapping switch 13.

The specific embodiment is a plug-in type full-sealed oil-immersed structure, wherein the lower end of a high-voltage shed integrated sleeve 7 and a lead-out wire of a high-voltage coil 11 are connected and sealed inside an oil tank 1 and are insulated and protected by transformer insulating oil 12, and the upper end of the high-voltage shed integrated sleeve 7 is connected with an elbow-shaped cable head 3 in a plug-in manner; the lower end of the low-voltage integrated sleeve 4 is connected with a low-voltage coil 10 through a lead wire and sealed in the oil tank 1, the low-voltage integrated sleeve is insulated and protected by transformer insulating oil 12, and the upper end of the low-voltage integrated sleeve 4 is directly connected with a cable or copper bar of a pre-installed transformer substation; the low-voltage integrated sleeve 4 is provided with a protective cover which can prevent electric shock and slow down oxidation; the live conversion part of the tap switch 13 is connected with the tap voltage regulating coil of the high-voltage coil 11 in the oil tank 1, and the requirements for different voltages can be met through external knob adjustment. Meanwhile, the inside of the multifunctional protector 2 is communicated with the inside of a transformer oil tank, so that the information such as the oil level, the temperature and the fault inside the transformer can be collected, signals are output to a pre-installed transformer substation, and the running condition of the transformer is monitored in real time.

The technical advantages of this embodiment are: (1) the high-voltage outgoing line is of a plug-in connection structure, is plug-and-play, and is convenient and reliable; the elbow type cable head and umbrella skirt integrated sleeve has excellent insulativity and sealing property, is waterproof and moistureproof, can realize live-line operation in extreme conditions, and improves the operation reliability of the prefabricated substation;

(2) the low-voltage special integrated sleeve is conveniently connected with a cable or a copper bar of the prefabricated substation, and the protective cover can prevent electric shock and slow down oxidation, so that the safe operation of a product is guaranteed;

(3) the multifunctional protector can realize real-time monitoring of conditions such as the internal temperature, oil level and gas of the transformer, feed back the prefabricated substation, and the external part does not need to install a protection device additionally, can realize the alarm, the control such as excision of the transformer abnormal conditions, and guarantee product safe operation.

To sum up, this embodiment compact structure collects multiple device, function in an organic whole, and easy to assemble can practice thrift the space of prepackage type transformer substation simultaneously, and the transformer high-low voltage electricity of this structure allies oneself with the part all does not have the exposure, and high-pressure elbow type cable head and umbrella skirt integral type bushing can reach waterproof level, and is safe and reliable more, and the plug-in is more convenient, and product integrated multifunctional protector can be to the operation condition real-time detection of product, avoids the potential safety hazard, provides more reliable power supply guarantee, has wide market perspective.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transformer for prepackage type transformer substation, a serial communication port, including oil tank (1), multi-functional protector (2), elbow type cable head (3), low pressure integral type sleeve pipe (4), case lid (5), oil level gaugember (6), high-pressure full skirt integral type sleeve pipe (7), transformer insulating oil (12), tap switch (13) and transformer ware body, transformer ware body has been placed in oil tank (1), and oil tank (1) intussuseption is filled with transformer insulating oil (12), installs case lid (5) on oil tank (1), case lid (5) on install multi-functional protector (2), elbow type cable head (3), low pressure integral type sleeve pipe (4), oil level gaugember (6), high-pressure full skirt integral type sleeve pipe (7) and tap switch (13) respectively, transformer ware body pass through connecting plate and case lid (5) and be connected fixedly, transformer ware body is by iron core (8), The high-voltage transformer comprises a clamping piece (9), a low-voltage coil (10) and a high-voltage coil (11), wherein a tapping coil for voltage regulation is arranged on the high-voltage coil (11), the low-voltage coil (10) and the high-voltage coil (11) are respectively connected to a low-voltage integrated sleeve (4) and a high-voltage umbrella skirt integrated sleeve (7) through leads, and the tapping coil on the high-voltage coil (11) is connected to a tapping switch (13).

2. The transformer for the preassembled transformer substation of claim 1, wherein the lower end of the high-voltage shed integrated sleeve (7) is connected with a lead-out wire of a high-voltage coil (11) and sealed in the oil tank (1), and the upper end of the high-voltage shed integrated sleeve (7) is connected with the elbow-shaped cable head (3) in a plugging and unplugging manner.

3. The transformer for the preassembled transformer substation of claim 1, wherein the lower end of the low-voltage integrated bushing (4) is connected with the low-voltage coil (10) in a lead manner and sealed in the oil tank (1), and the upper end of the low-voltage integrated bushing (4) is connected with a cable or a copper bar of the preassembled transformer substation.

4. A transformer for a pre-assembled substation according to claim 1, characterized in that the low voltage integrated bushing (4) is provided with a protective shield against electric shock and oxidation.

5. A transformer for a pre-assembled substation according to claim 1, characterized in that the live conversion part of the tap changer (13) is connected to the tap regulator coil of the high voltage coil (11) inside the tank (1).

6. A transformer for a pre-assembled substation according to claim 1, characterized in that the inside of the multifunctional protector (2) is intercommunicated with the inside of the transformer tank.

7. The transformer for the preassembled transformer substation of claim 1, wherein the tank cover (5) is connected and sealed with the oil tank (1) through bolts, and a corrosion-resistant and weather-resistant sealing rubber strip is arranged between the oil tank (1) and the tank cover (5).