CN216959433U

CN216959433U - Protection control equipment for safe operation of transformer

Info

Publication number: CN216959433U
Application number: CN202221253627.4U
Authority: CN
Inventors: 刘建; 郑洪洋; 荆庆辉
Original assignee: Henan Zhongzhi Tiancheng Power Technology Co ltd
Current assignee: Henan Zhongzhi Tiancheng Power Technology Co ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-07-12
Anticipated expiration: 2032-05-24

Abstract

The utility model relates to the technical field of voltage protection, in particular to a protection control device for safe operation of a transformer, wherein a CPU logic control module also controls an external communication interface module, the CPU logic control module is connected with a control data storage module, the external communication interface module feeds back information to the CPU logic control module, the data storage module feeds back information to the CPU logic control module, the CPU logic control module is connected with a control state indication module, the CPU logic control module is connected with an A/B/C three-phase temperature real-time detection module, the CPU control module controls a transformer chamber door state detection module, the CPU logic control module is connected with a control transmission conversion output, a CPU controls a corresponding relay to execute a corresponding protection function output through 3 temperature sensors pre-installed in a transformer coil, the transformer is prevented from being burnt out due to overhigh temperature, and economic loss is avoided.

Description

Protection control equipment for safe operation of transformer

Technical Field

The utility model relates to the technical field of voltage protection, in particular to protection control equipment for safe operation of a transformer.

Background

The power transformer is a vital device in a power supply system, and converts high voltage (10 kv and 35 kv) transmitted to a user from a transformer substation into low voltage of 0.4kv or low voltage required by the user (industrial user) for use by electric equipment. The power transformer is divided into an oil type transformer and a dry type transformer, the two transformers are in use, eddy currents can be generated by the iron core, the heat of the iron core is generated, the load is larger (namely, the current is larger), the eddy currents generated by the iron core are larger, the eddy currents are larger, the heat productivity of the iron core is larger, if the heat is not dissipated, the insulation aging of a transformer coil can be caused, even the coil is directly burnt out, namely, the transformer is directly burnt out, electric equipment of a user is caused, the production equipment of a factory is damaged, defective products are generated, and serious economic loss is caused.

The problems caused are as follows:

firstly, the operating temperature of the transformer cannot be too high, namely the temperature of the coil cannot be too high, namely the heat generated by the transformer must be quickly and effectively dissipated.

Secondly, the traditional human-computer interface is usually communicated by adopting a professional code, and can not be clearly displayed for people who do not know the outside to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a protection control device for safe operation of a transformer, which solves the above-mentioned problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a protection control equipment of transformer safe operation, includes human-computer interface module, CPU logic control module, logic execution control module, power supply management module, human-computer interface module connects on power supply management module, human-computer interface module exchanges information with CPU logic control module each other, power supply management module connect respectively with CPU logic control module and logic execution control module on, can make its user predetermine required each protection definite value inside CPU in advance through human-computer interface, convenience of customers uses.

Further, the CPU logic control module also controls an external communication interface module, the CPU logic control module is connected with a control data storage module, the external communication interface module feeds back information to the CPU logic control module, the data storage module feeds back information to the CPU logic control module, the CPU logic control module is connected with a control state indicating module, the CPU logic control module is connected with an A/B/C three-phase temperature real-time detection module, the CPU logic control module controls a transformer room door state detection module, the CPU logic control module is connected with a transformer room door state control conversion output, the CPU logic control module monitors the temperatures of three coils in real time through 3 temperature sensors pre-installed in the transformer coils, operates according to the temperature change, and then sends a command to a logic execution module according to the preset temperature range definition, the logic execution module controls the corresponding relay to execute the corresponding protection function output, and therefore the situation that the transformer is burnt out due to overhigh temperature of the transformer and economic loss is caused is avoided.

Furthermore, logic execution control module connection control fan control module, logic control execution control module connection control fault alarm module, logic execution control module connection control overtemperature tripping module, logic execution control module connection junction control transformer room door state detection module, logic execution control module connection control iron core alarm module, logic execution control module connection control standby module, execution module connects each control, makes things convenient for execution module to control its controller in real time, and convenience of customers uses.

Furthermore, the power supply management module and the human-computer interface module are connected with an external communication interface module, the power supply management module and the human-computer interface module are connected with a control data storage module, the power supply management module and the human-computer interface module are connected with a state indication module, the power supply management module and the human-computer interface module are connected with an A/B/C three-phase temperature real-time detection module, the CPU logic control module is connected with a transformer room door state detection module, the power supply management module and the human-computer interface module are connected with a transmission conversion output, the CPU logic control module monitors the state of the transformer room door in real time, when the door is opened (when the transformer is electrified, people are not allowed to approach), the CPU logic control module sends an instruction to the logic execution module to control the fault alarm module to disconnect the 10kv high voltage electricity, and the purpose that the transformer has power failure is achieved, avoiding casualties.

Furthermore, power supply management module and human-computer interface module connect fan control module, logic control execution control module connects fault alarm module, logic execution control module connects overtemperature alarm module, power supply management module and human-computer interface module connect overtemperature tripping operation module, power supply management module and human-computer interface module connect transformer room door state detection module, power supply management module and human-computer interface module connect iron core alarm module, power supply management module and human-computer interface module connect standby module, carry out power supply side controlgear through power supply management module to each module and can the safe operation.

Furthermore, the CPU logic control module controls the logic execution control module, so that the CPU logic control module can conveniently control the execution module.

The utility model has the technical effects and advantages that:

1. the utility model is beneficial to the user to preset each required protection constant value in the CPU in advance through the human-computer interface by arranging the human-computer interface module, uses the Chinese character interface and adopts Chinese character liquid crystal display, is concise and clear, and is convenient for the user to use and operate.

2. The utility model is beneficial to the automatic starting of the fan when the temperature of one phase in the three-phase coil winding reaches the set fan starting temperature value by arranging the CPU logic control module, and the fan indicator light is on when the fan is started. And when the temperature of one phase in the three-phase wire winding group is not greater than the set fan shutdown temperature value, the fan is automatically shut down.

Drawings

Fig. 1 is a schematic diagram of an automatic detection protection circuit for the safe operation temperature of a transformer.

FIG. 2 is a schematic diagram of the CPU logic script definition of the present invention.

FIG. 3 is a schematic diagram of a power management module of the present invention.

FIG. 4 is a schematic diagram of the logic execution and output modules of the present invention.

FIG. 5 is a schematic diagram of a transmit-to-convert output module of the present invention.

Fig. 6 is a schematic diagram of the transformer chamber door state detection of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the configurations of the respective structures described in the following embodiments are merely examples, and the protection control device for safe operation of a transformer according to the present invention is not limited to the respective structures described in the following embodiments, and all other embodiments obtained by a person skilled in the art without creative efforts belong to the scope of protection of the present invention.

Referring to fig. 1-6, the utility model provides a protection control device for safe operation of a transformer, which comprises a human-computer interface module, a CPU logic control module, a logic execution control module and a power supply management module, wherein the human-computer interface module is connected to the power supply management module, the human-computer interface module exchanges information with the CPU logic control module, the power supply management module is respectively connected to the CPU logic control module and the logic execution control module, and the protection control device for safe operation of the transformer can stably operate and ensure safe use through mutual matching and connection control between the modules.

In a preferred embodiment, the CPU logic control module further controls an external communication interface module, the CPU logic control module is connected with and controls the data storage module, the external communication interface module feeds back information to the CPU logic control module, the data storage module feeds back information to the CPU logic control module, the CPU logic control module is connected with and controls the state indication module, the CPU logic control module is connected with and controls the a/B/C three-phase temperature real-time detection module, the CPU logic control module is connected with and controls the transformer room door state detection module, the CPU logic control module is connected with and controls the transmission and conversion output, and each module is controlled by the CPU logic control module, so that the modules can work in a range set by a user, and the power utilization safety is ensured.

In a preferred embodiment, the logic execution control module is connected with the control fan control module, the logic control execution control module is connected with the control fault alarm module, the logic execution control module is connected with the control overtemperature trip module, the logic execution control module is connected with the control transformer chamber door state detection module, the logic execution control module is connected with the control iron core alarm module, the logic execution control module is connected with the control standby module, and the execution module executes commands of the logic execution control module, so that the commands of an execution user of equipment can be accurately executed, and the power utilization safety is ensured.

In a preferred embodiment, the power supply management module and the human-computer interface module are connected with an external communication interface module, the power supply management module and the human-computer interface module are connected with the control data storage module, the power supply management module and the human-computer interface module are connected with the state indication module, the power supply management module and the human-computer interface module are connected with the A/B/C three-phase temperature real-time detection module, the CPU logic control module is a transformer room door state detection module, the power supply management module and the human-computer interface module are connected with the transmission conversion output, the CPU monitors the state of the transformer room door in real time, when the door is opened (when the transformer is electrified, people are not allowed to approach the door), the CPU sends a logic execution module instruction to control the fault alarm module to cut off the 10kv high-voltage electricity, so that the purpose of power failure of the transformer is achieved, and casualties are avoided.

In the preferred embodiment, power supply management module and human-computer interface module connect fan control module, logic control execution control module connects fault alarm module, logic execution control module connects overtemperature alarm module, power supply management module and human-computer interface module connect overtemperature trip module, power supply management module and human-computer interface module connect junction transformer room door state detection module, power supply management module and human-computer interface module connect iron core alarm module, power supply management module and human-computer interface module connect standby module, carry out power supply side controlgear through power supply management module to each module and can the safe operation.

In a preferred embodiment, the CPU logic control module controls the logic execution control module, so that the CPU can control the execution module conveniently.

The working principle of the utility model is as follows: and the user presets each required protection fixed value into the CPU in advance through a human-computer interface.

The CPU monitors the temperatures of the three coils in real time through 3 temperature sensors (one temperature sensor can be pre-installed on an iron core according to the needs of a user) pre-installed in the transformer coil, carries out operation according to the temperature change, then sends a command to the logic execution module according to the preset temperature range definition, and the logic execution module controls the corresponding relay to execute corresponding protection function output, so that the transformer is prevented from being burnt due to overhigh temperature of the transformer, and economic loss is avoided.

The CPU monitors the temperature condition of each coil in real time, and stores the temperature condition into the storage module when abnormality occurs so as to be called by a user when the fault is eliminated.

The CPU monitors the state of the door of the transformer chamber in real time, when the door is opened, the transformer is electrified, people are not allowed to approach the door, the CPU sends a logic execution module instruction to control the fault alarm module, and 10kv high-voltage electricity is cut off, so that the purpose of power failure of the transformer is achieved, and casualties are avoided.

The CPU outputs the temperature values of the coil temperature and the iron core temperature which are monitored in real time to industrial control equipment through the transmitting and converting module so as to be used for detecting the temperature of the transformer by other equipment. The CPU can also transmit the running state of the transformer to background monitoring software or a centralized control center through the communication module so that a user can check the running condition of the transformer conveniently.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the utility model, only the structures related to the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the utility model can be combined mutually under the condition of no conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The protection control equipment for the safe operation of the transformer comprises a human-computer interface module, a CPU logic control module, a logic execution control module and a power supply management module, and is characterized in that: the human-computer interface module is connected to the power supply management module, the human-computer interface module exchanges information with the CPU logic control module, and the power supply management module is respectively connected to the CPU logic control module and the logic execution control module.

2. The protection control device for safe operation of transformer according to claim 1, characterized in that: the CPU logic control module also controls an external communication interface module, the CPU logic control module is connected with a control data storage module, the external communication interface module feeds back information to the CPU logic control module, the data storage module feeds back information to the CPU logic control module, the CPU logic control module is connected with a control state indicating module, the CPU logic control module is connected with and controls an A/B/C three-phase temperature real-time detection module, the CPU logic control module controls a transformer chamber door state detection module, and the CPU logic control module is connected with and controls transmission conversion output.

3. The protection control device for safe operation of transformer according to claim 1, characterized in that: the logic execution control module is connected with the control fan control module, the logic execution control module is connected with the control fault alarm module, the logic execution control module is connected with the control overtemperature trip module, the logic execution control module is connected with the control transformer room door state detection module, the logic execution control module is connected with the control iron core alarm module, and the logic execution control module is connected with the control standby module.

4. The protection control device for safe operation of transformer according to claim 1, characterized in that: the power supply management module and the human-computer interface module are connected with an external communication interface module, the power supply management module and the human-computer interface module are connected with a control data storage module, the power supply management module and the human-computer interface module are connected with a state indication module, the power supply management module and the human-computer interface module are connected with an A/B/C three-phase temperature real-time detection module, the CPU logic control module controls a transformer room door state detection module, and the power supply management module and the human-computer interface module are connected with a transmission conversion output.

5. The protection control device for safe operation of transformer according to claim 1, characterized in that: the power supply management module and the human-computer interface module are connected with the fan control module, the logic control execution control module is connected with the fault alarm module, the logic execution control module is connected with the overtemperature alarm module, the power supply management module and the human-computer interface module are connected with the overtemperature trip module, the power supply management module and the human-computer interface module are connected with the transformer room door state detection module, the power supply management module and the human-computer interface module are connected with the iron core alarm module, and the power supply management module and the human-computer interface module are connected with the standby module.

6. The protection control device for safe operation of transformer according to claim 1, characterized in that: the CPU logic control module controls the logic execution control module.