KR20100125565A - State information saving distribute transformer, display device thereof and control method thereof - Google Patents

Abstract

PURPOSE: A distribution transformer, a display device thereof, and a control method thereof are provided to prevent an accident in a transformer by periodically storing the status information of the transformer in a memory. CONSTITUTION: A distribution transformer comprises an input unit(10), a timer(11), a memory(44), a status sensor(6), and a control module(4). The input unit receives condition information for sensing the status of the transformer from a user. The memory stores period and time information for sensing the status of the transformer. The status sensor senses the status of the transformer and is comprised of a temperature sensor, a current sensor, and a voltage sensor. The control module stores the status information of the transformer.

Description

Power distribution transformer for storing state information, display device thereof and control method thereof

The present invention relates to a transformer, and in particular, the overall operation of the transformer, such as transformer operation status, load, temperature, data transmission, insulation oil status, such as not only make it possible to visually check, but also stores such information, and checks the information stored in the usual The present invention relates to a distribution transformer, a display device thereof, and a control method thereof for storing state information.

In general, with the increase of the power demand, the transformer has become larger and ultra high pressure. When an accident occurs in such a large-capacity transformer, its ripple effect is widespread, economic losses and psychological anxiety are enormous, and the necessity for preventing the accident of the transformer is increasing.

Conventionally, in order to check the load state of a power distribution transformer, a separate switchboard was installed and a voltmeter, an ammeter, and a power meter were attached thereto to check the state of the transformer. In most cases, for safety and operational reasons, transformers are used separately from switchboards. Therefore, when the number of transformers used is many, it is difficult to check the details of each transformer, that is, the status information individually, and the complexity and the large additional cost are generated even when constructing a system such as a switchboard. In addition, there are many transformers that are difficult to check with a measuring device due to narrow location, etc., so that they are not easily identified with the naked eye.

Recently, in order to secure the reliability of the transformer and to supply the power stably, the development of a device for constantly measuring the signs of the internal defects that cause the accident in the operating state of the transformer is urgently needed.

In addition, it is difficult to find the cause when an accident occurs because the state information of the transformer is not stored in all, and there is a limit in preventing an accident in advance.

The technical problem to be solved by the present invention is derived to solve the above problems, it can be implemented at a low cost, and can quickly and easily check the transformer state, such as load, temperature, current, voltage of the transformer with the naked eye In addition, the internal state of the transformer can be stored in the memory at a period and interval desired by the user, and the transformer accident can be prevented by using it in the event of a transformer accident or at ordinary times.In the event of an accident, the status of the transformer can be known. will be.

The transformer for load display according to the characteristics of the present invention for solving the technical problem,

A power distribution transformer having a primary winding and a secondary winding, and detaching an external memory for storing period and time information for detecting a state of a transformer.

A state detecting unit detecting a state inside the transformer;

When the period and time stored in the external memory, the control module for storing the state information of the transformer received from the state sensing unit in the memory.

According to another aspect of the present invention for solving the technical problem is a transformer for load display,

A transformer for distribution having a primary winding and a secondary winding,

An input unit for receiving condition information for detecting a state of a transformer from a user;

A memory for storing information;

A state detecting unit detecting a state inside the transformer;

And a control module that stores the condition information in the memory according to the input of the input unit and stores the state information of the transformer received from the state sensing unit in the memory if the condition is met.

Distribution transformer according to another feature of the present invention for solving the technical problem,

A transformer for distribution having a primary winding and a secondary winding,

An input unit for receiving period and time information for detecting a state of a transformer from a user;

A timer for checking the time;

A memory for storing information;

A state detecting unit detecting a state inside the transformer;

Storing the period and the time information in the memory according to the input of the input unit, and storing the state information of the transformer received from the state sensing unit in the memory when the corresponding time of the period is reached with reference to the timer. Contains modules

The state detection unit,

A temperature sensor unit for outputting an electrical signal using a thermocouple element to display the internal temperature as a digital value;

A current sensor unit sensing a current of the transformer;

It characterized in that it comprises a voltage sensor for detecting the transformer.

The transformer

The display module may further include a display unit configured to display information, wherein the control module displays the temperature, current, and voltage of the transformer on the display unit by using electrical signals received from the temperature sensor unit, the current sensor unit, and the voltage sensor unit. It features.

The control module,

An energy measuring unit calculating power from the current and the voltage output from the current sensor unit and the voltage sensor unit;

The period and the time information are stored in the memory according to the input of the input unit, and when the corresponding time of the period is reached with reference to the timer, the state information of the transformer received from the temperature sensor unit and the energy measuring unit is stored in the memory. Stored in the controller, and control the display unit to display a state of the transformer including the temperature, current, voltage, and power of the transformer, and display a warning on the display device when at least one of the voltage, current, and power is equal to or greater than a reference value. Central control unit for controlling;

And a display driver configured to display information on the display device under the control of the central controller.

The control module is characterized in that to provide the status information of the transformer in response to an external request.

The memory may use an external memory as needed, or may be connected to the outside through various interface methods.

The display device of the transformer according to the characteristics of the present invention for solving the technical problem,

A display device of a power distribution transformer that receives state information of a transformer from a state detection unit inside a transformer,

A display unit for displaying information;

An input unit for receiving period and time information for detecting a state of a transformer from a user;

A timer for checking the time;

A memory for storing information;

A state detecting unit detecting a state inside the transformer;

Storing the period and the time information in the memory according to an input of the input unit, and when the corresponding time of the period is reached with reference to the timer, storing the state information of the transformer received from the state sensing unit in the memory, And a control module for controlling to display state information of the transformer on the display unit.

The control method of the power distribution transformer according to the characteristics of the present invention for solving the technical problem,

As a control method of a power distribution transformer having a primary winding and a secondary winding,

Receiving and storing period and time information for detecting a state of a transformer from a user;

Detecting a state inside the transformer;

Determining whether it is a period and time for detecting a state of the transformer;

Storing state information of the sensed transformer if a period and time corresponding to detecting the state of the transformer correspond;

If it does not correspond to the period and time for detecting the state of the transformer, displaying the state information of the detected transformer.

In the embodiment of the present invention, it is possible to easily check the transformer state with the naked eye without installing a separate switchboard installation cost, it is possible to ensure the safety of the work processing, it is also possible to quickly check daily. In addition, it is possible to easily identify the load on the transformer by daily inspection of the state of each transformer, which enables efficient electricity management to be seen.

In addition, it is possible to quickly and safely check transformers installed in nearby places or telephone poles, which are difficult to access, and thus have an accident prevention dimension and high work efficiency.

In addition, the present invention can store the overall state of the transformer, such as the state of the transformer, such as the load, current, temperature, insulation oil acid value state in the memory for a user's desired period and time, and can use the recorded information of the past state in the event of a transformer accident or usual times. Therefore, a transformer accident can be prevented in advance, and in the event of an accident, a secondary accident can be prevented by detecting a transformer state at the time of the accident.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

1 is a distribution transformer according to an embodiment of the present invention,

An input unit 10 for receiving condition information for detecting a state of a transformer from a user;

A timer 11 for checking the time;

A memory 44 for storing information;

A state detecting unit 6 detecting a state inside the transformer;

Storing the period and the time information in the memory according to the input of the input unit, and storing the state information of the transformer received from the state sensing unit in the memory when the corresponding time of the period is reached with reference to the timer. Module 4.

The state detection unit 6,

A temperature sensor unit (7) for outputting an electrical signal using a thermocouple element so as to display the temperature inside the digital value;

A current sensor unit 8 for sensing a current of the transformer;

It characterized in that it comprises a voltage sensor 9 for detecting the transformer.

The transformer

The display module may further include a display unit 1 for displaying information, and the control module may display the temperature, current, and voltage of the transformer on the display unit by using electrical signals received from the temperature sensor unit, the current sensor unit, and the voltage sensor unit. It is characterized by displaying.

The control module 4,

An energy measuring unit 43 for calculating electric power from the current and the voltage output from the current sensor unit and the voltage sensor unit;

The period and the time information are stored in the memory according to the input of the input unit, and when the corresponding time of the period is reached with reference to the timer, the state information of the transformer received from the temperature sensor unit and the energy measuring unit is stored in the memory. Stored in the controller, and control the display unit to display a state of the transformer including the temperature, current, voltage, and power of the transformer, and display a warning on the display device when at least one of the voltage, current, and power is equal to or greater than a reference value. A central control unit 41 for controlling;

And a display driver 42 for displaying information on the display device under the control of the central controller.

The control module 4 is characterized in that to provide the status information of the transformer in response to an external request.

The memory 44 may use an external memory as needed, or may be connected to the outside through various interface methods.

The input unit 10 may be omitted if necessary, and may store a period and time for storing state information in the memory 44.

Then, the operation of the transformer and its display device having such a configuration will be described.

First, a user inputs a period and time for storing state information of a transformer using a keypad of the input unit 10. For example, the period and time may be set from 5 to 23 o'clock from May to August 2009, or the period and time of 24 hours, etc., 365 days a day.

Then, the central control unit 41 stores the input period and time in the memory 44.

When driving the transformer according to an embodiment of the present invention after the period and time for storing the state information is stored, the temperature sensor 7 uses an thermocouple element to display the temperature inside the transformer as a digital value. To the central control unit 41. In this case, a plurality of temperature sensors may be installed to measure the temperature of the insulating oil and the temperature of the winding.

In addition, the current sensor unit 8 passes the transformer secondary winding through a current transformer (C.T) to convert a large current value into a small current value and transmit the signal to the energy measuring unit 41.

The voltage sensor unit 9 connects the transformer secondary voltage to a Potential Transformer (P.T), converts the large voltage into a small voltage, and transmits the signal to the energy measuring unit 43. In this case, when there is no need to convert the secondary voltage, connect directly without using P.T. The internal structure of the transformer and the current and voltage monitoring methods are well known in the art, and thus detailed descriptions are omitted.

Then, the energy measuring unit 43 calculates the power by multiplying the current and the voltage.

Then, the energy measuring unit 43 outputs the voltage, current and power of the transformer to the central control unit 41 (S220).

Next, the central controller 41 refers to the timer 11 and determines whether the current date and time correspond to the period and time stored in the memory 44 (S230).

If the current date and time correspond to the period and time stored in the memory 44, the central control unit 41 displays the received transformer temperature (oil temperature, winding temperature, winding specific connection part, etc.), current, voltage and power used. It stores in the memory 44.

Here, the central controller 41 stores the state of the transformer in the memory 44 for a corresponding period and time by an iterative process.

The central controller 41 drives the display driver 42 to display the received temperature (oil temperature, winding temperature, winding specific connection portion), current, voltage, and power of the transformer on the display unit 1. In addition, the central controller 41 sets a current, voltage, or power value that is a reference value according to the type, type, or capacity of the transformer in advance, and compares the measured value with the reference value to determine any one of the current, voltage, or power. If the value is more than the reference value, the warning lamp is turned on in the display unit 1.

3 shows an example of display of the display unit 1. Referring to FIG. 3, the safety light and the warning light of the display unit may be implemented by light emitting diodes to facilitate identification from a distance.

The oil temperature, current, voltage, and power values are implemented in segments.

However, such an example may be variously implemented in other forms as well as embodiments, and may be displayed only by the light emitting diodes.

In addition, the memory 44 may be implemented as an SD card so that historical data on temperature, voltage, current, and power may be periodically stored, and may be separated and used as transformer analysis data as necessary. That is, the operation history of the transformer can be checked.

This embodiment of the present invention allows the user to easily store the overall state of the transformer, such as the transformer operation status, load, temperature, data transmission, insulation oil price, etc. for the period and time desired by the user, and display the state information of the transformer in real time. Make it possible to check. In addition, by using electronic components such as LEDs, LCDs, back-lights, and segments on the display unit, the transformer can be easily diagnosed during the day and night.

The present invention can be used in a variety of transformers, such as load, power distribution transformer, power transformer, functional transformer, display transformer, load display transformer, LED display transformer, LCD display transformer, operation status display transformer, power display transformer. .

In such a transformer, a display device and a sensor unit may be separately configured and applied to an existing transformer. Such a display device is illustrated in FIG. 4.

4 is a perspective view of a display device according to an exemplary embodiment of the present invention.

Referring to FIG. 4, a display device according to an exemplary embodiment of the present invention includes a display unit 1, an input unit 10, a timer 11, a cable 2, and a sealing member 3 for displaying a load state and a transformer state. , The control module 4 is provided, and the display unit 1 may include an LCD, an LED, a segment, and the like. The cable 2 enables signal transmission and reception between the display unit 1 and the control module 4 and allows the display unit 1 to move freely. In addition, the sealing member 3 serves to seal the oil inside the transformer so that it does not leak out when the display device is installed.

The control module 4 is connected to the temperature sensor unit 7, the voltage sensor unit 9, and the current sensor unit 8 in the transformer.

In addition, the input unit 10 (not shown) may be installed on the back or front of the display unit 1, and the timer 11 (not shown) may be built in the control module 4.

Such a display device has an advantage that can be applied to a conventional transformer.

In addition, the transformer and the display device of the embodiment can be waterproofed so that there is no problem in operation even in rainy weather.

The embodiments of the present invention described above are not only implemented through the apparatus and the method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium on which the program is recorded. Implementation can be easily implemented by those skilled in the art from the description of the embodiments described above.

It will be appreciated that various changes and modifications can be made by those skilled in the art to which the present invention pertains without departing from the technical spirit of the present invention. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

1 is an internal configuration diagram of a power distribution transformer according to an embodiment of the present invention.

2 is a flowchart illustrating a control method of a distribution transformer according to an exemplary embodiment of the present invention.

3 is a view showing a display example of a display unit of a power distribution transformer according to an embodiment of the present invention.

4 is a diagram illustrating an appearance of a display device according to an exemplary embodiment of the present invention.

Claims (7)

A transformer for distribution having a primary winding and a secondary winding, A memory for storing period and time information for detecting a state of a transformer; A state detecting unit detecting a state inside the transformer; And a control module for storing the state information of the transformer received from the state detecting unit in the memory when the period and time stored in the memory are reached. A transformer for distribution having a primary winding and a secondary winding, An input unit for receiving period and time information for detecting a state of a transformer from a user; A timer for checking the time; A memory for storing information; A state detecting unit detecting a state inside the transformer; Storing the period and the time information in the memory according to the input of the input unit, and storing the state information of the transformer received from the state sensing unit in the memory when the corresponding time of the period is reached with reference to the timer. Distribution transformer comprising a module. The method of claim 2, It further includes a display unit for displaying information, The state detection unit, A temperature sensor unit for outputting an electrical signal using a thermocouple element to display the internal temperature as a digital value; A current sensor unit sensing a current of the transformer; Including a voltage sensor for sensing the transformer,  The control module is a distribution transformer, characterized in that for displaying the temperature, current, voltage of the transformer on the display using the electrical signals received from the temperature sensor, the current sensor, the voltage sensor. The method of claim 3, The control module, An energy measuring unit calculating power from the current and the voltage output from the current sensor unit and the voltage sensor unit; The period and the time information are stored in the memory according to the input of the input unit, and when the corresponding time of the period is reached with reference to the timer, the state information of the transformer received from the temperature sensor unit and the energy measuring unit is stored in the memory. Stored in the controller, and control the display unit to display a state of the transformer including the temperature, current, voltage, and power of the transformer, and display a warning on the display device when at least one of the voltage, current, and power is equal to or greater than a reference value. Central control unit for controlling; And a display driver configured to display information on the display device under the control of the central controller. A power distribution transformer having a primary winding and a secondary winding, and detaching an external memory for storing period and time information for detecting a state of a transformer. A state detecting unit detecting a state inside the transformer; And a control module configured to store state information of the transformer received from the state detecting unit in the memory when a period and time stored in the external memory are reached. A display device of a power distribution transformer that receives state information of a transformer from a state detection unit inside a transformer, A display unit for displaying information; An input unit for receiving period and time information for detecting a state of a transformer from a user; A timer for checking the time; A memory for storing information; A state detecting unit detecting a state inside the transformer; Storing the period and the time information in the memory according to the input of the input unit, and when the corresponding time of the period is reached with reference to the timer, storing the state information of the transformer received from the state sensing unit in the memory, And a control module for controlling to display state information of the transformer on the display unit. As a control method of a power distribution transformer having a primary winding and a secondary winding, Receiving and storing period and time information for detecting a state of a transformer from a user; Detecting a state inside the transformer; Determining whether it is a period and time for detecting a state of the transformer; Storing state information of the sensed transformer if a period and time corresponding to detecting the state of the transformer correspond; If it does not correspond to the period and time for detecting the state of the transformer, displaying the detected state information of the transformer.

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