CN216560812U

CN216560812U - Distribution transformer maintains monitoring devices

Info

Publication number: CN216560812U
Application number: CN202122933553.0U
Authority: CN
Inventors: 任杰; 官鑫海
Original assignee: Ningxia Huaruijie Electric Power Co ltd
Current assignee: Ningxia Huaruijie Electric Power Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-17
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a maintenance monitoring device of a distribution transformer, which comprises a distribution box, a transformer, a monitoring assembly and a stabilizing assembly, wherein the transformer is arranged in the distribution box, the monitoring assembly is arranged at the outer side of the distribution box, and the monitoring assembly is used for monitoring the environment in the distribution box and the state of the transformer, wherein the stabilizing assembly comprises two winding limiting plates which are arranged at two ends of an iron core in the transformer, and the winding limiting plates are used for fixing the iron core in the transformer. According to the utility model, each iron core is stabilized through the stabilizing assembly, so that the distortion and damage of the internal structure of the transformer caused by short circuit are effectively prevented; and through setting up erection support, increased the stability of block terminal.

Description

Distribution transformer maintains monitoring devices

Technical Field

The utility model relates to the field of maintenance and monitoring of distribution transformers, in particular to a maintenance and monitoring device of a distribution transformer.

Background

A transformer is a device capable of changing an alternating voltage. Transformers are also used to transform alternating current, transform impedance, and change phase, among other things, and power transformers include step-up transformers, step-down transformers, and distribution transformers.

According to the national standard GB1094.5 national standard regulation: the power transformer has no damage under the action of over-current caused by external short circuit. That is, the power transformer and its electrical components and accessories must be designed and manufactured to withstand the thermal and dynamic stabilization effects of external short circuits, ensuring no damage, i.e., the ability of the power transformer to withstand short circuits.

The existing industry aims at that the iron core structure of the amorphous transformer is four-frame five-column, two side columns are attached to the outer side of an A, C-phase coil, epoxy plates with larger thickness are added on the iron core side columns and the coil, and side clamping pieces are utilized to block radial electromotive force generated when the transformer is in short circuit. But the instant impact force can also act on the iron core, so that the lap joint of the iron core is easy to be pulled apart, and a large amount of amorphous fragments are generated and enter the coil.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a maintenance monitoring device for a distribution transformer, which is used for the above problems.

The utility model is realized by the following technical scheme:

the utility model provides a distribution transformer's maintenance monitoring devices, includes block terminal, transformer, monitoring subassembly and stabilizes the subassembly, the transformer is installed in the block terminal, monitoring unit mount is in the outside of block terminal, monitoring unit is used for monitoring the state of environment, transformer in the block terminal, wherein, it includes two winding limiting plates to stabilize the subassembly, the winding limiting plate sets up the both ends of the iron core in the transformer, the winding limiting plate is used for the iron core in the fixed transformer.

Further, the block terminal includes box and erection support, the bottom of box is provided with second thread tightening hole and spout, the erection support is fixed through the thread tightening hole to go up and down along the axial through the spout.

Further, the installation support comprises a first installation frame and a second installation frame, the first installation frame and the second installation frame are matched in a mutually staggered mode, the first installation frame and the second installation frame are connected with the bottom of the box body through sliding grooves and are fixed with the bottom of the box body through first threaded fixing holes.

Further, a second thread fixing hole is formed in one side, close to the box body, of each of the first mounting frame and the second mounting frame, the first thread fixing hole and the second thread fixing hole are matched with each other, and the first mounting frame and the second mounting frame are fixed to the bottom of the box body through the first thread fixing hole and the second thread fixing hole.

Further, the winding limiting plate is including the plate body and a plurality of connecting hole that open and shut, turn right from a left side and set gradually on the plate body that opens and shuts, the centre of a circle of connecting hole sets up on the central line of the plate body that opens and shuts, the plate body that opens and shuts along the central line, the connecting hole corresponds the both ends of installing in the iron core respectively.

Furthermore, the aperture of the connecting hole is slightly smaller than the diameter of the iron core, and the connecting hole is matched with the iron core.

Further, the monitoring assembly comprises a temperature and humidity sensor, an inclination angle sensor, a vibration sensor and a short-circuit early warning monitoring device, wherein the temperature and humidity sensor, the inclination angle sensor and the vibration sensor are respectively arranged in the distribution box, and the short-circuit early warning monitoring device is connected to a power supply circuit of the power converter in parallel.

Further, the monitoring assembly further comprises a controller, the controller is respectively connected with the temperature and humidity sensor, the inclination angle sensor, the vibration sensor and the short-circuit early warning monitoring device and is connected with the wireless communication equipment, and the wireless communication equipment is connected with an external monitoring terminal.

The utility model has the beneficial effects that:

(1) according to the utility model, each iron core is stabilized through the stabilizing assembly, so that the distortion and damage of the internal structure of the transformer caused by short circuit are effectively prevented;

(2) the mounting support is arranged, so that the stability of the distribution box is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a transformer core of a maintenance monitoring device for a distribution transformer according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a mounting bracket of a maintenance monitoring device for a distribution transformer according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a device swap \ merge formeformemat of a stabilizing component of a maintenance monitoring device of a distribution transformer according to an embodiment of the present invention;

in the figure: 1-distribution box, 2-transformer, 3-iron core, 4-opening and closing plate, 5-connecting hole, 6-chute, 7-first mounting frame, 8-second mounting frame, 9-first thread fixing hole and 10-second thread fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.

Example 1

If fig. 1, this embodiment provides a distribution transformer's maintenance monitoring devices, including block terminal 1, transformer 2, monitoring components and stabilizing assembly, transformer 2 installs in block terminal 1, monitoring components installs in block terminal 1's the outside, monitoring components is used for monitoring environment, transformer 2's the state in block terminal 1, wherein, if fig. 3, stabilizing assembly includes two winding limiting plates, the winding limiting plate sets up the both ends of iron core 3 in transformer 2, the winding limiting plate is used for fixing iron core 3 in transformer 2.

Example 2

On the basis of embodiment 1, this embodiment further provides a distribution transformer's maintenance monitoring devices's specific structure, wherein, block terminal 1 includes box and erection support, the bottom of box is provided with second thread tightening hole 10 and spout 6, the erection support is fixed through the thread tightening hole to go up and down along the axial through spout 6.

Further, as shown in fig. 3, the mounting support includes a first mounting frame 7 and a second mounting frame 8, the first mounting frame 7 and the second mounting frame 8 are in a mutually staggered fit, and the first mounting frame 7 and the second mounting frame 8 are connected to the bottom of the box body through a sliding groove 6 and fixed to the bottom of the box body through a first threaded fixing hole 9.

Further, a second screw fixing hole 10 is provided on a side of the first mounting frame 7 and a side of the second mounting frame 8 adjacent to the box, the first screw fixing hole 9 and the second screw fixing hole 10 are matched with each other, and the first mounting frame 7 and the second mounting frame 8 are fixed to the bottom of the box through the first screw fixing hole 9 and the second screw fixing hole 10.

Wherein, through above-mentioned embodiment, the erection support can be adjusted, realizes going up and down through adjusting. In addition, in another embodiment, the first mounting frame 7 and the second mounting frame 8 can be mounted on a rod body, and cooperate with each other to achieve the stability of the distribution box 1.

Example 3

On embodiment 1's basis, this embodiment further provides a distribution transformer's maintenance monitoring devices's concrete structure, wherein, the winding limiting plate is including opening and shutting plate body 4 and a plurality of connecting hole 5, connecting hole 5 turns right from a left side and sets gradually on opening and shutting plate body 4, the centre of a circle of connecting hole 5 sets up on opening and shutting plate body 4's central line, opening and shutting plate body 4 opens and shuts along the central line, connecting hole 5 corresponds the both ends of installing in iron core 3 respectively.

Furthermore, the aperture of the connecting hole 5 is slightly smaller than the diameter of the iron core 3, and the connecting hole 5 is matched with the iron core 3.

Wherein, through above-mentioned embodiment, unify fixedly to transformer's iron core 3, prevent iron core 3 distortion through a plurality of connecting holes 5 and the plate body 4 that opens and shuts, in addition, in another kind of embodiment, the monitoring subassembly sets up apart from the inductor, detects the distance between the iron core 3.

Example 4

On the basis of embodiment 1, this embodiment further provides a distribution transformer's maintenance monitoring devices's concrete structure, wherein, the monitoring subassembly includes temperature and humidity sensor, inclination sensor, vibrations sensor and short-circuit early warning monitoring devices, temperature and humidity sensor, inclination sensor and vibrations sensor are installed respectively in block terminal 1, short-circuit early warning monitoring devices connects in parallel on the power supply circuit of transformer.

Wherein, above-mentioned embodiment is through multiple sensor, monitors the environment in block terminal 1 and the short circuit condition of transformer 2, and is further, the specific theory of operation of short circuit early warning monitoring devices is similar with the structure and the chinese utility model patent that application number is 201720434749, the temperature and humidity sensor model is MD-HT101, inclination sensor's model is BWK210, vibrations sensor is vibration displacement sensor. In addition, in another embodiment, the controller is also connected with an alarm device.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a distribution transformer's maintenance monitoring devices, a serial communication port, including block terminal, transformer, monitoring subassembly and stabilizing the subassembly, the transformer is installed in the block terminal, monitoring unit mount is in the outside of block terminal, monitoring unit is used for monitoring the state of environment, transformer in the block terminal, wherein, stabilizing the subassembly and including two winding limiting plates, the winding limiting plate sets up the both ends of the iron core in the transformer, the winding limiting plate is used for the iron core in the fixed transformer.

2. The maintenance monitoring device of a distribution transformer according to claim 1, wherein the distribution box comprises a box body and a mounting support, a second threaded fixing hole and a sliding groove are formed in the bottom of the box body, and the mounting support is fixed through the threaded fixing hole and can axially lift through the sliding groove.

3. The maintenance monitoring device of a distribution transformer of claim 2, wherein the mounting bracket comprises a first mounting frame and a second mounting frame, the first mounting frame and the second mounting frame are mutually matched in a staggered manner, and the first mounting frame and the second mounting frame are connected with the bottom of the box body through a sliding groove and fixed with the bottom of the box body through a first threaded fixing hole.

4. The maintenance monitoring device of a distribution transformer as claimed in claim 3, wherein the first and second mounting frames are provided with second screw fixing holes at sides close to the box body, the first and second screw fixing holes are matched with each other, and the first and second mounting frames are fixed at the bottom of the box body through the first and second screw fixing holes.

5. The distribution transformer's maintenance monitoring devices of claim 1, characterized in that, the winding limiting plate includes the plate body that opens and shuts and a plurality of connecting hole, the connecting hole sets gradually on the plate body that opens and shuts from a left side to the right side, the centre of a circle of connecting hole sets up on the central line of the plate body that opens and shuts, the plate body that opens and shuts along the central line, the connecting hole corresponds the both ends of installing in the iron core respectively.

6. The distribution transformer maintenance monitoring device of claim 5, wherein the aperture of the connection hole is slightly smaller than the diameter of the iron core, and the connection hole is matched with the iron core.

7. The distribution transformer maintenance monitoring device according to claim 1, wherein the monitoring assembly comprises a temperature and humidity sensor, an inclination sensor, a vibration sensor and a short-circuit early warning monitoring device, the temperature and humidity sensor, the inclination sensor and the vibration sensor are respectively installed in the distribution box, and the short-circuit early warning monitoring device is connected in parallel to a power supply circuit of the transformer.

8. The distribution transformer maintenance monitoring device according to claim 7, wherein the monitoring assembly further comprises a controller, the controller is respectively connected with the temperature and humidity sensor, the inclination angle sensor, the vibration sensor and the short-circuit early warning monitoring device, and is connected with a wireless communication device, and the wireless communication device is connected with an external monitoring terminal.