CN210182216U

CN210182216U - Large-capacity voltage transformer for living

Info

Publication number: CN210182216U
Application number: CN201921872658.6U
Authority: CN
Inventors: Feng Xu; 徐峰
Original assignee: Jiangsu Keyu Transformer Co Ltd
Current assignee: Jiangsu Keyu Transformer Co Ltd
Priority date: 2019-11-02
Filing date: 2019-11-02
Publication date: 2020-03-24
Anticipated expiration: 2029-11-02

Abstract

The utility model relates to a large capacity voltage transformer is used in residence. The novel transformer junction box is characterized by comprising a supporting base, wherein a first voltage transformer shell is arranged at the top of the supporting base, a second voltage transformer shell is installed on one side of the first voltage transformer shell through a screw, a threaded installation hole is formed in the surface of the supporting base, a junction box is arranged on one side of the first voltage transformer shell, and a first wiring terminal is arranged on the surface of the junction box. Through the first voltage transformer casing that sets up, can compare in current transformer casing, first voltage transformer casing more has characteristics small, holistic light in weight, and inside capacious, and insulating protective cover adopts insulating material such as tetrafluoroethylene to make simultaneously, has insulating reliably, and factor of safety is high.

Description

Large-capacity voltage transformer for living

Technical Field

The utility model belongs to the technical field of voltage transformer, concretely relates to large capacity voltage transformer is used in house.

Background

The voltage transformer is similar to a transformer and is an instrument for converting voltage, but the purpose of converting voltage of the transformer is to conveniently transmit electric energy, so that the capacity is very large, and usually, kilovolt-ampere or megavolt-ampere is taken as a calculation unit; the voltage transformer is mainly used for supplying power to a measuring instrument and a relay protection device, measuring the voltage, power and electric energy of a line, or protecting valuable equipment, a motor and a transformer in the line when the line fails, so that the capacity of the voltage transformer is small, generally only a few volt-amperes and dozens of volt-amperes, and not more than one thousand volt-amperes at most, and the basic structure, the working principle, the main type, the wiring mode, the notice, the abnormity, the processing, the ferromagnetic resonance and the like are introduced by the vocabulary.

The voltage transformer is used for measuring voltage in a power system or an electrical control system, the existing voltage transformer is complex and complicated in installation and maintenance, the requirements on size and capacity are low, the overall performance of the voltage transformer is directly influenced, at present, the existing voltage transformer has the leakage problem, important devices in a circuit are easily burnt, the safety coefficient is low, and meanwhile, due to the fact that the transformer is large in size, heavy in weight and small in capacity, the working condition requirements cannot be met in the using process, the transformer is difficult to install and the like.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a large capacity voltage transformer is used in residence has solved current voltage transformer, because the mutual-inductor is bulky, weight is big, capacious, leads to not reaching the operating mode demand in the use, causes the problem of the installation difficulty etc. of mutual-inductor.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a large capacity voltage transformer for living use, is including supporting the base, the top of supporting the base is equipped with first voltage transformer casing, there is the second voltage transformer casing one side of first voltage transformer casing through the mounting screw, the surface of supporting the base is equipped with the screw thread mounting hole, one side of first voltage transformer casing is equipped with the terminal box, the surface of terminal box is equipped with first binding post, the inside of first voltage transformer casing is equipped with the iron core, the one end winding of iron core has first winding, the other end winding of iron core has the second winding.

Preferably, the top of first voltage transformer casing is equipped with insulating protective cover, insulating protective cover's top is equipped with second binding post.

Preferably, the bottom end of the second connection terminal penetrates through the insulating protective cover and is connected with the second winding through a wire.

Preferably, one end of the first connection terminal is connected to the first winding through a wire.

Preferably, the surface of the first voltage transformer casing is provided with a protective cooling fin, and one end of the protective cooling fin penetrates through the first voltage transformer casing and extends to the inside of the first voltage transformer casing.

Compared with the prior art, the beneficial effects of the utility model are that:

through the first voltage transformer casing that sets up, can compare in current transformer casing, first voltage transformer casing more has small, holistic light in weight, the characteristics that inside capacity is big, insulating protective cover adopts insulating materials such as tetrafluoroethylene to make simultaneously, it is reliable to have insulation, factor of safety is high, all have the protection fin on the surface of first voltage transformer casing, can conduct the inside heat of first voltage transformer casing, increase insulating base's mechanical strength simultaneously, effectively reduce the potential safety hazard, guarantee to operate safelyr.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a three-dimensional structure of the present invention;

fig. 2 is a sectional view of a first three-dimensional structure of the present invention;

fig. 3 is a sectional view of a second three-dimensional structure of the present invention.

In the figure: 1 supporting a base; 2 a first voltage transformer housing; 3 a second voltage transformer housing; 4, mounting holes with threads; 5 protecting the radiating fins; 6, a junction box; 7 a first connection terminal; 8 insulating protective covers; 9 a second connection terminal; 10 iron cores; 11 a first winding; 12 second winding.

Detailed Description

The present invention will be further explained with reference to the attached drawings in the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a large-capacity voltage transformer for living comprises a supporting base 1, wherein the supporting base 1 is used for supporting a transformer and plays a role of fixed installation, a first voltage transformer shell 2 is fixedly installed at the top of the supporting base 1, the first voltage transformer shell 2 is arranged, compared with the existing transformer shell, the first voltage transformer shell 2 has the characteristics of small size, light weight and large internal capacity, a second voltage transformer shell 3 is installed on one side of the first voltage transformer shell 2 through a screw, a threaded installation hole 4 is formed in the surface of the supporting base 1, a junction box 6 is fixedly installed on one side of the first voltage transformer shell 2, a first wiring terminal 7 is arranged on the surface of the junction box 6, the junction box 6 can protect the first wiring terminal 7 placed outside, and the service life of the first wiring terminal 7 is prolonged, an iron core 10 is installed inside the first voltage transformer casing 2, a first winding 11 is wound on one end of the iron core 10, and a second winding 12 is wound on the other end of the iron core 10.

Specifically, the top of first voltage transformer casing 2 is equipped with insulating protective cover 8, and insulating protective cover 8's top is equipped with second binding post 9, through insulating protective cover 8, can improve the holistic anticreep of mutual-inductor, improves the factor of safety of mutual-inductor.

Specifically, insulating protective cover 8 is passed to second binding post 9's bottom to be connected with second winding 12 through the wire, through the second binding post 9 that sets up, can be convenient for be connected with external equipment, make the installation of mutual-inductor convenient more and swift.

Specifically, one end of the first connection terminal 7 is connected with the first winding 11 through a wire, and the transformer can achieve the function of converting high voltage or large current into standard low voltage in proportion through the arranged first winding 11.

Specifically, the surface of first voltage transformer casing 2 is equipped with protection fin 5, and the one end of protection fin 5 passes first voltage transformer casing 2 and extends to the inside of first voltage transformer casing 2, through protection fin 5, can all have protection fin 5 on the surface of first voltage transformer casing 2, can conduct the inside heat of first voltage transformer casing 2, increase insulating base's mechanical strength simultaneously, effectively reduce the potential safety hazard, guarantee to operate safelyr.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back, install voltage transformer through the screw thread mounting hole 4 that supports 1 surface of base, be connected second binding post 9 with second winding 12 through the wire simultaneously, first binding post 7 advances to be connected with first winding 11, be connected with measuring apparatu and relay protection device after connecting well again and supply power, current transformer's structure is comparatively simple, by mutual insulation's first winding 11, second winding 12, iron core 10 and framework, first voltage transformer casing 2, constitute such as second binding post 9. The working principle of the transformer is the same as that of a transformer, and the transformer is characterized in that the capacity is small and relatively constant, the transformer is close to an idle state in normal operation, two windings are arranged on or wound on an iron core 10, and insulation is arranged between the two windings and between the windings and the iron core 10, so that the two windings and between the windings and the iron core 10 are electrically isolated.

The impedance of the voltage transformer is very small, and once the secondary side is short-circuited, the current rapidly increases to burn the coil. Therefore, the primary side of the voltage transformer is connected with a fuse, and the secondary side is reliably grounded, so that personal and equipment accidents caused by high potential to the ground of the secondary side when the primary side and the secondary side are damaged in an insulation way are avoided.

Claims

1. The utility model provides a large capacity voltage transformer is used in residence, includes support base (1), its characterized in that: the top of supporting base (1) is equipped with first voltage transformer casing (2), there is second voltage transformer casing (3) one side of first voltage transformer casing (2) through the screw mounting, the surface of supporting base (1) is equipped with threaded mounting hole (4), one side of first voltage transformer casing (2) is equipped with terminal box (6), the surface of terminal box (6) is equipped with first binding post (7), the inside of first voltage transformer casing (2) is equipped with iron core (10), the one end winding of iron core (10) has first winding (11), the other end winding of iron core (10) has second winding (12).

2. An occupied high-capacity voltage transformer according to claim 1, characterized in that: the top of first voltage transformer casing (2) is equipped with insulating protective cover (8), the top of insulating protective cover (8) is equipped with second binding post (9).

3. An occupied high-capacity voltage transformer according to claim 2, characterized in that: the bottom end of the second wiring terminal (9) penetrates through the insulating protective cover (8) and is connected with the second winding (12) through a wire.

4. An occupied high-capacity voltage transformer according to claim 1, characterized in that: one end of the first connecting terminal (7) is connected with the first winding (11) through a lead.

5. An occupied high-capacity voltage transformer according to claim 1, characterized in that: the surface of the first voltage transformer shell (2) is provided with a protective cooling fin (5), and one end of the protective cooling fin (5) penetrates through the first voltage transformer shell (2) and extends into the first voltage transformer shell (2).