CN211830230U

CN211830230U - Intelligent load balancing device of low-voltage distribution transformer

Info

Publication number: CN211830230U
Application number: CN202020056706.0U
Authority: CN
Inventors: 张磊磊
Original assignee: Nantong Cosco Power Engineering Design Co ltd
Current assignee: Nantong Cosco Power Engineering Design Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-10-30
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a low voltage distribution transformer's intelligent load balancing unit relates to the voltage protection field, and for solving current load balancing unit output mode defect among the prior art, be unfavorable for the problem of long-term use. The utility model discloses a high-voltage transformer, including transformer, device shell, display screen, louvre, photoelectric switch, motor safety cover, servo motor, low-voltage sleeve pipe, bottom plate, support are installed to the lower extreme of transformer, and the lower extreme of bottom plate installs the device shell, and the mounting panel is all installed to the lower terminal surface of bottom plate, the preceding terminal surface of device shell is provided with display screen and louvre, the internally mounted of device shell has the detector, and the up end of detector is provided with the wiring mouth, the below of detector is provided with the connecting plate, and the preceding terminal surface of connecting plate is provided with the singlechip, the inside one side of device shell is provided with connecting wire, and photoelectric switch is installed to one.

Description

Intelligent load balancing device of low-voltage distribution transformer

Technical Field

The utility model relates to a voltage protection technical field specifically is low voltage distribution transformer's intelligent load balancing unit.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and main components are a primary coil, a secondary coil and an iron core (magnetic core), and the transformer has the main functions of: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), and the like, and can be classified into: the power transformer and the special transformer (electric furnace transformer, rectification transformer, power frequency test transformer, voltage regulator, mining transformer, audio transformer, intermediate frequency transformer, high frequency transformer, impact transformer, instrument transformer, electronic transformer, reactor, mutual inductor, etc.), the circuit symbol is usually T as the beginning of the serial number, for example, T01, T201, etc., with the continuous improvement of the electricity demand of our country, the load change of the power grid is more and more big, the quality of the electric energy in the distribution network can not be effectively guaranteed, in the urban and rural power grid of our country, a three-phase four-wire system distribution mode is largely adopted, and the distribution transformer Y/yn0 is wired.

Along with the rapid development of national economy of China, the industrial production scale is continuously enlarged, high-capacity fluctuating electric loads appear in succession, which puts higher requirements on the bearing capacity of a power grid, the difference between the output currents of windings of a low-voltage distribution transformer can be increased after the load of the transformer is loaded, the transformer fault caused by serious unbalance of the output currents is not facilitated due to the long-term stable operation of the low-voltage distribution transformer, and the conventional load balancing device has a defect in output mode and is not beneficial to long-term use; therefore, the market urgently needs to develop an intelligent load balancing device of a low-voltage distribution transformer to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low voltage distribution transformer's intelligent load balancing unit to current load balancing unit output mode who proposes in solving above-mentioned background art is defective, is unfavorable for the problem of long-term use.

In order to achieve the above object, the utility model provides a following technical scheme: low voltage distribution transformer's intelligent load balancing unit, including transformer and power, the low pressure sleeve pipe is installed to the top of transformer, and the bottom plate is installed to the lower extreme of transformer, and bottom plate and transformer welded connection, the support is installed to the lower extreme of bottom plate, and the support passes through the set screw to be connected with the bottom plate.

Preferably, the lower terminal surface of bottom plate installs the device shell, and the mounting panel is all installed to the both sides of device shell, and mounting panel and device shell welded connection, and the inside of mounting panel is provided with fastening screw, and the mounting panel passes through fastening screw and bottom plate fixed connection.

Preferably, the front end face of the device shell is provided with a display screen and a heat dissipation hole, the display screen extends into the device shell and is connected with the device shell through a fixing screw, and the heat dissipation hole and the device shell are arranged into a whole.

Preferably, the internally mounted of device shell has the detector, and the detector passes through the fixed screw to be connected with the device shell, and the up end of detector is provided with the wiring mouth, and the detector passes through wiring mouth and transformer electric connection, the below of detector is provided with the connecting plate, and the preceding terminal surface of connecting plate is provided with the singlechip, and the connecting plate passes through the fixed screw with the device shell to be connected, and the singlechip passes through the fixed screw to be connected with the device shell.

Preferably, one side of the inside of the device shell is provided with a connecting wire, one side of the connecting wire is provided with a photoelectric switch, one side of the photoelectric switch is provided with a motor protective cover, the inside of the motor protective cover is provided with a servo motor, the connecting wire is respectively electrically connected with the photoelectric switch and the single chip microcomputer, the upper end of the servo motor is provided with a cooling fan, and the cooling fan is fixedly connected with the servo motor.

Preferably, the output end of the power supply is connected with the input end of the transformer, the output end of the transformer is connected with the input end of the detector, the output end of the detector is respectively connected with the display screen and the input end of the single chip microcomputer, the output end of the single chip microcomputer is connected with the input end of the photoelectric switch, and the output end of the photoelectric switch is connected with the input end of the servo motor.

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

the utility model can detect the transformer current through the detector inside the device shell through the servo motor, when the transformer works, the photoelectric switch is opened through the singlechip, the transformer current is transferred to the servo motor circuit through the connecting wire, the rotating speed of the servo motor can be changed through the load current, thereby the transformer overload load is detected, the current with different load degrees is suitable for effectively reducing the voltage fluctuation caused by load impact, the safe and reliable operation of the transformer and the electric equipment is ensured, the electric energy quality of the system operation is improved, the heat dissipation fan is driven by the servo motor to rotate, the heat dissipation is carried out on the transformer and the device shell, the device is effectively protected, not only the energy is utilized, but also the service life of the electric equipment is prolonged, the energy conservation and environmental protection are realized, while reducing equipment costs.

Drawings

Fig. 1 is a front view of the intelligent load balancing device of the low-voltage distribution transformer of the present invention;

fig. 2 is an internal structure diagram of the intelligent load balancing device of the low-voltage distribution transformer of the present invention;

fig. 3 is the utility model discloses a low voltage distribution transformer's intelligent load balancing unit's principle schematic diagram.

In the figure: 1. a transformer; 2. a low-pressure bushing; 3. a base plate; 4. a support; 5. a device housing; 6. A display screen; 7. heat dissipation holes; 8. mounting a plate; 9. fastening screws; 10. a detector; 11. a wiring port; 12. a connecting plate; 13. a single chip microcomputer; 14. connecting a lead; 15. a photoelectric switch; 16. a motor protection cover; 17. a heat radiation fan; 18. a power source; 19. a servo motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: low voltage distribution transformer's intelligent load balancing unit, including transformer 1 and power 18, low-voltage bushing 2 is installed to transformer 1's top, and bottom plate 3 is installed to transformer 1's lower extreme, and bottom plate 3 and transformer 1 welded connection, support 4 is installed to the lower extreme of bottom plate 3, and support 4 is connected with bottom plate 3 through the set screw, supports transformer 1 through support 4, makes to have the certain distance between device shell 5 and the ground.

Further, device shell 5 is installed to the lower terminal surface of bottom plate 3, and mounting panel 8 is all installed to the both sides of device shell 5, and mounting panel 8 and device shell 5 welded connection, and the inside of mounting panel 8 is provided with fastening screw 9, and mounting panel 8 passes through fastening screw 9 and bottom plate 3 fixed connection, will install shell 5 and transformer 1 fixed connection through mounting panel 8.

Further, the preceding terminal surface of device shell 5 is provided with display screen 6 and louvre 7, and display screen 6 extends to the inside of device shell 5 and passes through fixed screw with device shell 5 and be connected, and louvre 7 sets up structure as an organic whole with device shell 5, shows transformer 1 electric current through display screen 6.

Further, the internally mounted of device shell 5 has detector 10, detector 10 is connected with device shell 5 through the set screw, and the up end of detector 10 is provided with wiring mouth 11, and detector 10 is through wiring mouth 11 and transformer 1 electric connection, the below of detector 10 is provided with connecting plate 12, the preceding terminal surface of connecting plate 12 is provided with singlechip 13, and connecting plate 12 and device shell 5 are through the set screw connection, singlechip 13 is connected with device shell 5 through the set screw, singlechip 13 adopts the model to be AT91M singlechip 13, detector 10 adopts TG76000 contact current tester.

Further, one side of the inside of the device shell 5 is provided with a connecting wire 14, a photoelectric switch 15 is installed on one side of the connecting wire 14, a motor protective cover 16 is installed on one side of the photoelectric switch 15, a servo motor 19 is arranged inside the motor protective cover 16, the connecting wire 14 is respectively electrically connected with the photoelectric switch 15 and the single chip microcomputer 13, a heat dissipation fan 17 is installed at the upper end of the servo motor 19, the heat dissipation fan 17 is fixedly connected with the servo motor 19, the heat dissipation fan 17 is driven to rotate through the servo motor 19, heat dissipation is carried out on the transformer 1 and the device shell 5, and the device is effectively protected.

Further, the output end of the power supply 18 is connected with the input end of the transformer 1, the output end of the transformer 1 is connected with the input end of the detector 10, the output end of the detector 10 is respectively connected with the input ends of the display screen 6 and the single chip microcomputer 13, the output end of the single chip microcomputer 13 is connected with the input end of the photoelectric switch 15, the output end of the photoelectric switch 15 is connected with the input end of the servo motor 19, the photoelectric switch 15 is turned on through the single chip microcomputer 13, the current of the transformer 1 is switched to the circuit of the servo motor 19 through the connecting lead 14, and the rotating speed of the servo motor 19 can be changed through the load current.

The working principle is as follows: when the device is used, the wiring port 11 is connected with an output circuit of the transformer 1, when the transformer 1 works, the bracket 4 supports the transformer 1, a certain distance is reserved between the device shell 5 and the ground, so that the device shell 5 can be fixedly installed, the current of the transformer 1 is displayed through the display screen 6, the current of the transformer 1 can be detected through the detector 10 in the device shell 5, so that overload of a transformer 1 worker is detected, when the transformer is loaded, the photoelectric switch 15 is switched on through the singlechip 13, the current of the transformer 1 is switched to a circuit of the servo motor 19 through the connecting lead 14, the rotating speed of the servo motor 19 can be changed through the magnitude of the load current, so that the device is suitable for currents with different load degrees, voltage fluctuation caused by load impact is effectively reduced, the safe and reliable operation of the transformer 1 and electric equipment is ensured, and the electric energy quality of system operation is improved, and the servo motor 19 drives the cooling fan 17 to rotate, and the transformer 1 and the device shell 5 are cooled by matching with the cooling holes 7, so that the device is effectively protected.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Low voltage distribution transformer's intelligent load balancing unit, including transformer (1) and power (18), its characterized in that: low-voltage bushing (2) are installed to the top of transformer (1), and bottom plate (3) are installed to the lower extreme of transformer (1), and bottom plate (3) and transformer (1) welded connection, support (4) are installed to the lower extreme of bottom plate (3), and support (4) are connected with bottom plate (3) through the set screw.

2. The intelligent load balancing device of low voltage distribution transformers according to claim 1, characterized in that: device shell (5) are installed to the lower terminal surface of bottom plate (3), and mounting panel (8) are all installed to the both sides of device shell (5), and mounting panel (8) and device shell (5) welded connection, and the inside of mounting panel (8) is provided with fastening screw (9), and mounting panel (8) are through fastening screw (9) and bottom plate (3) fixed connection.

3. The intelligent load balancing device of low voltage distribution transformers according to claim 2, characterized in that: the front end face of the device shell (5) is provided with a display screen (6) and heat dissipation holes (7), the display screen (6) extends to the inside of the device shell (5) and is connected with the device shell (5) through fixing screws, and the heat dissipation holes (7) and the device shell (5) are arranged into an integral structure.

4. The intelligent load balancing device of low voltage distribution transformers according to claim 3, characterized in that: the utility model discloses a transformer detection device, including device shell (5), the internally mounted of device shell (5) has detector (10), and detector (10) are connected with device shell (5) through the fixed screw, and the up end of detector (10) is provided with wiring mouth (11), and detector (10) are through wiring mouth (11) and transformer (1) electric connection, the below of detector (10) is provided with connecting plate (12), and the preceding terminal surface of connecting plate (12) is provided with singlechip (13), and connecting plate (12) and device shell (5) are through fixed screw connection, and singlechip (13) are connected with device shell (5) through the fixed screw.

5. The intelligent load balancing device of low voltage distribution transformers according to claim 4, characterized in that: the device is characterized in that a connecting wire (14) is arranged on one side inside a shell (5), a photoelectric switch (15) is installed on one side of the connecting wire (14), a motor protection cover (16) is installed on one side of the photoelectric switch (15), a servo motor (19) is arranged inside the motor protection cover (16), the connecting wire (14) is respectively electrically connected with the photoelectric switch (15) and a single chip microcomputer (13), a cooling fan (17) is installed at the upper end of the servo motor (19), and the cooling fan (17) is fixedly connected with the servo motor (19).

6. The intelligent load balancing device of low voltage distribution transformers according to claim 1, characterized in that: the output end of the power supply (18) is connected with the input end of the transformer (1), the output end of the transformer (1) is connected with the input end of the detector (10), the output end of the detector (10) is respectively connected with the input ends of the display screen (6) and the single chip microcomputer (13), the output end of the single chip microcomputer (13) is connected with the input end of the photoelectric switch (15), and the output end of the photoelectric switch (15) is connected with the input end of the servo motor (19).