CN210778227U

CN210778227U - Intelligent distribution transformer

Info

Publication number: CN210778227U
Application number: CN201921961956.2U
Authority: CN
Inventors: 袁文应
Original assignee: Shanghai Shen Yu Power System Control Co ltd
Current assignee: Shanghai Shen Yu Power System Control Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-06-16
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses an intelligent distribution transformer, which comprises a transformer body, wherein a three-phase winding is arranged in the transformer body, an embedded intelligent unit is arranged on the side surface of the body, and an environment temperature sensor, a position sensor and a sunshine sensor are arranged on the top surface of the body; the three-phase winding is provided with a winding temperature sensor; a high-voltage side current transformer is arranged on the high-voltage side of the three-phase winding, and a low-voltage side current transformer and a low-voltage side voltage transformer are arranged on the low-voltage side; the embedded intelligent unit comprises a box body, and a DSP development board, a central control board and an execution board which are connected in the box body in a bidirectional way in sequence; the G end on the DSP development board is connected with a position sensor, the L end is connected with a sunshine sensor, the Th end is connected with an environment temperature sensor, the Tr end is connected with a winding temperature sensor, the u end is connected with a low-voltage side voltage transformer, the I end is connected with a low-voltage side current transformer, and the I end is connected with a high-voltage side current transformer. The utility model discloses reasonable design makes the assembly connection between transformer body and the embedded intelligent unit.

Description

Intelligent distribution transformer

Technical Field

The utility model relates to an electrical equipment technical field, more specifically say, relate to an intelligent distribution transformer.

Background

The biggest difference between the intelligent distribution transformer and the traditional distribution transformer is that the running state and the equipment information can be fed back to a monitoring system (distribution network automation system) in real time through an intelligent unit in the running process except that all signals adopt the digital transmission of the unified standard.

In order to monitor (monitor) the conventional distribution transformer, a measurement and control device (such as a TTU device) is usually installed on the conventional distribution transformer. Sometimes, in order to complete effective measurement and control of a traditional distribution transformer, various measurement and control devices need to be externally hung on the periphery of the distribution transformer.

These devices can only complete some single function measurement and control of the traditional distribution transformer, so they can not complete the comprehensive and complete measurement and control and management of the traditional distribution transformer.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that exists among the prior art, the utility model aims at providing an intelligent distribution transformer, reasonable design makes the assembly connection between transformer body and the embedded intelligent unit, makes it form the intelligent distribution transformer that has the thing and allies oneself with the function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent distribution transformer comprises a transformer body, wherein a three-phase winding is arranged in the transformer body;

an embedded intelligent unit is arranged on the side face of the transformer body, and an ambient temperature sensor, a position sensor and a sunshine sensor are arranged on the transformer body;

winding temperature sensors are respectively arranged in the three-phase windings;

the high-voltage sides of the three-phase windings are respectively provided with a high-voltage side current transformer, and the low-voltage sides of the three-phase windings are respectively provided with a low-voltage side current transformer and a low-voltage side voltage transformer;

the embedded intelligent unit comprises a box body, and a DSP development board, a central control board, an execution board and a communication board which are arranged in the box body and are connected in a bidirectional mode in sequence;

the last G end of DSP development board with position sensor links to each other, the L end with sunshine sensor links to each other, the Th end with ambient temperature sensor links to each other, the Tr end with winding temperature sensor links to each other, the u end with low pressure side voltage transformer links to each other, the I end with low pressure side current transformer links to each other, the I end with high pressure side current transformer links to each other.

The box body is connected to the side face of the transformer body.

The environment temperature sensor, the position sensor and the sunshine sensor are located on the top surface of the transformer body.

The communication board has several pieces, realizes the communication with multiple equipment according to the difference of the protocols carried on the board.

The execution board is provided with a plurality of blocks, and different functions are realized according to different software loaded on the board.

The utility model provides an intelligent distribution transformer with various sensors, executor, intelligent unit is all concentrated and is embedded into the transformer body, has realized all-round, multi-functional effectual observing and controlling of distribution transformer, guarantees that the transformer moves under safe, reliable, economic condition, improves the utilization ratio of transformer simultaneously.

Drawings

Fig. 1 is a front view of the intelligent distribution transformer of the present invention;

FIG. 2 is a side view of the intelligent distribution transformer of FIG. 1;

FIG. 3 is a top view of the intelligent distribution transformer of FIG. 1;

fig. 4 is a schematic diagram of three-phase windings inside the transformer body in the intelligent distribution transformer of the present invention;

FIG. 5 is a top view of the interior of the transformer body of FIG. 4;

fig. 6 is the utility model discloses intelligent distribution transformer's electrical connection picture.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and examples.

Please refer to fig. 1 to 6, the present invention provides an intelligent distribution transformer, which comprises a transformer body 1, wherein a three-phase winding 2 is disposed in the transformer body 1, and the above description is related to the prior art and is not repeated herein. Different from the prior art:

preferably, install embedded intelligent unit 3 on any side of transformer body 1, install ambient temperature sensor 4, position sensor 5 and sunshine sensor 6 on transformer body 1's the top surface, be used for acquireing transformer body 1's ambient temperature, GPS position and sunshine intensity's information.

Preferably, winding temperature sensors 7 are respectively disposed in the three-phase windings 2 to obtain temperature information of the three-phase windings 2.

Preferably, a high-voltage side current transformer 8 is respectively disposed on the high-voltage side of the three-phase winding 2 to obtain current information of the high-voltage side of the three-phase winding 2, and a low-voltage side current transformer 9 and a low-voltage side voltage transformer 10 are respectively disposed on the low-voltage side of the three-phase winding 2 to obtain current information of the low-voltage side of the three-phase winding 2 and voltage information of 220V/380V of the low-voltage side of the three-phase winding 2.

Preferably, the high-voltage side current transformer 8 is located in a high-voltage bushing 11 of the transformer body 1, and the low-voltage side current transformer 9 is located in a low-voltage bushing 12 of the transformer body 1. The high-voltage side current transformer 8 and the low-voltage side current transformer 9 can be installed on the top surface of the transformer body 1 in a centralized manner through the high-voltage bushing 11 and the low-voltage bushing 12.

Preferably, the embedded intelligent unit 3 includes a box 301, and a DSP development board 302, a central control board 303, an execution board 304 and a communication board 305, which are disposed in the box 301 and are connected in sequence in a bidirectional manner.

Preferably, the G end of the DSP development board 302 is connected to the position sensor 5, the L end is connected to the sunshine sensor 6, the Th end is connected to the ambient temperature sensor 4, the Tr end is connected to the winding temperature sensor 7, the u end is connected to the low-voltage side voltage transformer 10, the I end is connected to the low-voltage side current transformer 9, and the I end is connected to the high-voltage side current transformer 8.

The signals obtained by the sensors are directly sent to the DSP development board 302, and the DSP development board 302 performs the functions of measurement and calculation. And the data acquired and calculated by the DSP development board 302 is sent to the central control board 303, and the functions of data routing, transformer identification and transformer state evaluation are completed on the central control board 303. The execution board 304 has a plurality of blocks, adopts a unified design, realizes different functions according to different software loaded on the board, and can realize reactive power regulation, capacity regulation and voltage regulation, harmonic wave treatment and three-phase imbalance treatment. The communication board 305 also has a plurality of communication boards, adopts a unified design, realizes different functions according to different loaded protocols on the board, and can realize communication with a master station, a centralized meter reading device and an internet of things device.

The utility model discloses intelligent distribution transformer will embedded intelligent unit 3 is in with each sensor the reasonable setting of mounted position on the transformer body 1 reaches mutual correspondence and connects for each sensor can under embedded intelligent unit 3's management, make to operate under safe, reliable, economic condition with novel intelligent distribution transformer.

When leaving the factory, can with the utility model discloses intelligent distribution transformer's various characteristic parameter and mechanism information are implanted earlier embedded intelligent unit 3. Real-time information, automatic analysis are collected to each sensor to the operation in-process the utility model discloses intelligent distribution transformer's operating condition, with other system real-time interaction data information, the relevant data and the instruction of receiving main website system simultaneously, the operating condition of adjustment self.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The utility model provides an intelligent distribution transformer, includes the transformer body, this internal three-phase winding that has of transformer, its characterized in that:

2. The intelligent distribution transformer of claim 1, wherein: the box body is connected to the side face of the transformer body.

3. The intelligent distribution transformer of claim 1, wherein: the environment temperature sensor, the position sensor and the sunshine sensor are located on the top surface of the transformer body.

4. The intelligent distribution transformer of claim 3, wherein: the communication board has several pieces, realizes the communication with multiple equipment according to the difference of the protocols carried on the board.

5. The intelligent distribution transformer of claim 1, wherein: the execution board is provided with a plurality of blocks, and different functions are realized according to different software loaded on the board.