CN211014555U

CN211014555U - Transformer on-load switch monitoring device

Info

Publication number: CN211014555U
Application number: CN201921944670.3U
Authority: CN
Inventors: 刘晓巍; 尚光伟; 张静; 苏长宝; 龚正国; 惠峥; 李婷婷; 顾瑛; 梁伟; 张海栋; 常悦
Original assignee: Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-14
Anticipated expiration: 2029-11-12

Abstract

The utility model discloses a transformer has load switch monitoring devices, include: the device comprises a data acquisition unit, a data analysis unit, a judgment unit, an output unit and a display unit. The data acquisition unit acquires abnormal data of the on-load switch; the data analysis unit is used for analyzing abnormal data; the judging unit is used for judging whether the abnormal data meet a preset abnormal threshold value; the output unit is in communication connection with the judgment unit to output a judgment result; the display unit is in communication connection with the judging unit to display the judging result. On one hand, the monitoring device of the on-load switch of the transformer accurately judges the abnormal state of the on-load switch of the transformer by combining a preset abnormal state threshold through the data acquisition unit, the data analysis unit and the judgment unit. On the other hand, the judgment result of the judgment unit is timely output to the display unit to remind the worker that the on-load switch is abnormal, and the worker can timely adopt a corresponding scheme aiming at the abnormal state to avoid causing greater loss.

Description

Transformer on-load switch monitoring device

Technical Field

The utility model relates to an electric power system monitoring technology field specifically is a transformer has load switch monitoring devices.

Background

The On-load switch (On-L ad Tap Changer, O L TC) is a component used by the transformer for regulating voltage, and the On-load switch can basically ensure the stability of the system voltage and provide better service for power users by virtue of the regulation of O L TC.

Generally, the fault types of the transformer on-load switch mainly include: the phenomena of jamming, breakage, sliding gear, failure of a limit switch, internal leakage and the like of the transmission shaft occur. Therefore, the abnormal state of the on-load switch is automatically monitored, the fault state and the overhauling efficiency of the transformer can be effectively improved, the transformer is suitable for the new situation that national economy requires high power quality and high reliability, and the transformer has very important practical significance.

In the monitoring and diagnosing device for the on-load switch of the transformer disclosed in the prior art, the state of the on-load switch of the transformer is monitored by utilizing a sensor, a data collector and a microprocessor, so that the monitoring result is low in accuracy and serious in time delay.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a transformer has load switch monitoring devices is provided, accurately and judge the abnormal state that has load switch to appear in time, improve the reliability of on-load tap changing transformer and power system's safety and stability operation.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a transformer on-load switch monitoring device, the monitoring device comprising: the data acquisition unit is electrically connected with the on-load switch to acquire abnormal data of the on-load switch; the data analysis unit is in communication connection with the data acquisition unit to analyze the abnormal data; the judging unit is in communication connection with the data analyzing unit to judge whether the abnormal data meets a preset abnormal threshold value; the output unit is in communication connection with the judgment unit to output a judgment result; and the display unit is in communication connection with the judgment unit to display the judgment result.

Preferably, the monitoring device further comprises a database, and the database is in communication connection with the data acquisition unit to store the abnormal data acquired by the data acquisition unit.

Preferably, the monitoring device further comprises a data server, and the data server is in communication connection with the data analysis unit, the judgment unit and the display unit respectively; the data server is used for managing the data information and the judgment information of the data analysis unit and providing the data information and the judgment information of the judgment unit for the display unit.

Preferably, the data acquisition unit comprises one or more of a vibration sensor, a current sensor, an angle sensor and a decibel sensor.

Preferably, the display unit includes a mobile terminal and/or an industrial personal computer.

Preferably, the angle sensor detects the torque and/or the angle of rotation of the load switch.

Preferably, the monitoring device is used for monitoring abnormal conditions of the load switch, wherein the abnormal conditions comprise one or more of jamming, fracture, sliding gear, failure of the limit switch and internal leakage of a transmission shaft.

The utility model has the advantages that:

the utility model provides a monitoring devices of transformer on-load switch on the one hand passes through data acquisition unit, data analysis unit and judgement unit, combines predetermined abnormal state threshold value, accurately judges the abnormal state that the transformer has on-load switch. On the other hand, the judgment result of the judgment unit is timely output to the display unit to remind the worker that the on-load switch is abnormal, and the worker can timely adopt a corresponding scheme aiming at the abnormal state to avoid causing greater loss.

Further, the utility model discloses can monitor the transformer more accurately and have the state of load switch, for improving transformer safety and stability operation level provides effectual solution, be favorable to the guarantee and improve the stability of system voltage, it is significant to guarantee and improve power system's safety, and simultaneously, the maintenance plan of scientific and reasonable is made according to the running state that has the load switch to the power operation department of being more convenient for, in time accurate maintenance has the load switch, adapt to the new trend of national economy to electric power high quality, high reliability requirement, avoid unnecessary maintenance inspection and a large amount of manpower and material resources extravagant, have fine economic benefits and social, be worth extensively popularizing and applying.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a block diagram of the structure of an embodiment of the present invention.

Fig. 2 is a block diagram showing the structure of the data acquisition unit shown in fig. 1.

Fig. 3 is a block diagram of another embodiment of the present invention.

Fig. 4 is a block diagram of a structure of another embodiment of the present invention.

In the figure: 100. the device comprises a monitoring device, 110, a data acquisition unit, 111, a vibration sensor, 112, a current sensor, 113, an angle sensor, 114, a decibel sensor, 120, a data analysis unit, 130, a judgment unit, 140, an output unit, 150, a display unit, 160, a database, 170 and a data server.

Detailed Description

The present invention will be further described with reference to the following examples. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment, the present invention provides a transformer on-load switch monitoring device 100, where the monitoring device 100 includes a data acquisition unit 110, a data analysis unit 120, a determination unit 130, an output unit 140, and a display unit 150. The data acquisition unit 110 is electrically connected with the on-load switch to acquire abnormal data of the on-load switch; the data analysis unit 120 is in communication connection with the data acquisition unit 110 to analyze abnormal data; the judging unit 130 is in communication connection with the data analyzing unit 120 to judge whether the abnormal data meets a preset abnormal threshold; the output unit 140 is in communication connection with the judgment unit 130 to output a judgment result; the display unit 150 is communicatively connected to the determination unit 130 to display the determination result.

Specifically, referring to fig. 2, the data acquisition unit 110 includes one or more of a vibration sensor 111, a current sensor 112, an angle sensor 113, and a decibel sensor 114. The sensor is used for monitoring the abnormal state of the on-load switch, and the abnormal state comprises one or more of jamming, fracture, sliding gear of a transmission shaft, failure of a limit switch and internal leakage. In a specific embodiment, if a transmission shaft is jammed, broken or slides, the signals received by the vibration sensor 111, the current sensor 112, the angle sensor 113 and the decibel sensor 114 are abnormal, wherein the vibration sensor 111 acquires the vibration amplitude of the on-load switch, the current sensor 112 acquires the current value passing through the on-load switch, the decibel sensor 114 acquires the decibel value of the on-load switch during operation, and the angle sensor 113 can acquire the torque and the rotation angle of the on-load switch; if the limit switch fails, the signal received by the current sensor 112 is abnormal; if the internal leakage occurs, the signal received by the current sensor 112 may be abnormal.

The data analysis Unit 120 includes, but is not limited to, a Central Processing Unit (CPU), a Micro Control Unit (MCU), and other devices for interpreting a computer and Processing data in computer software.

The determination unit 130 includes, but is not limited to, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, a discrete hardware component, and other devices for abnormal condition determination logic. Further, the determining unit 130 is preset with an abnormal threshold, which specifically includes a vibration abnormal threshold, a current abnormal threshold, an angle abnormal threshold, and a decibel abnormal threshold. When the data information detected by each detector exceeds an abnormal threshold, the judgment module can make an abnormal judgment result.

The output unit 140 is a commonly used output module, and includes a wired output and a wireless output, such as a USB interface, a cellular interface, and the like. The output unit 140 is used for outputting the above judgment result.

The display unit 150 is one or more of a mobile terminal and an industrial personal computer. The determining unit 130 is communicatively connected to a plurality of display units 150, which may be a mobile phone terminal, a PC terminal, a work console, and the like.

On one hand, the monitoring device 100 for the on-load switch of the transformer accurately judges the abnormal state of the on-load switch of the transformer by combining the preset abnormal state threshold value through the data acquisition unit 110, the data analysis unit 120 and the judgment unit 130. On the other hand, the judgment result of the judgment unit 130 is timely output to the display unit 150 to remind the worker that the on-load switch is abnormal, and the worker can timely adopt a corresponding scheme aiming at the abnormal state so as to avoid causing greater loss.

Referring to fig. 3, in a preferred embodiment, the monitoring device 100 further includes a database 160, the database 160 is communicatively connected to the data acquisition unit 110 for storing the abnormal data acquired by the data acquisition unit 110. specifically, the type of the database 160 may be MySQ L, Oracle, MongoDb or other database types.

Referring to fig. 4, in another preferred embodiment, the monitoring device 100 further includes a data server 170. The data server 170 is respectively connected with the data analysis unit 120, the judgment unit 130 and the display unit 150 in a communication way; the data server 170 serves to manage the data information of the data analysis unit 120 and the judgment information of the judgment unit 130, and provides the data information and the judgment information to the display unit 150. The data server 170 manages data information and judgment information, and is helpful to provide reliable data of the abnormal state of the on-load switch for subsequent work, and is beneficial to standardizing the abnormal state of the on-load switch. Those skilled in the art will readily appreciate that the database 160 in this embodiment may be omitted.

Technical scheme of the utility model not be restricted to the utility model the within range of embodiment. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a transformer on-load switch monitoring devices which characterized in that: the monitoring device includes:

the data acquisition unit is electrically connected with the on-load switch to acquire abnormal data of the on-load switch;

the data analysis unit is in communication connection with the data acquisition unit so as to analyze the abnormal data;

the judging unit is in communication connection with the data analyzing unit to judge whether the abnormal data meets a preset abnormal threshold value;

the output unit is in communication connection with the judgment unit to output a judgment result; and

and the display unit is in communication connection with the judgment unit to display the judgment result.

2. The transformer on-load switch monitoring device of claim 1, wherein: the monitoring device further comprises a database which is in communication connection with the data acquisition unit so as to store the abnormal data acquired by the data acquisition unit.

3. The transformer on-load switch monitoring device of claim 1, wherein: the monitoring device also comprises a data server which is respectively in communication connection with the data analysis unit, the judgment unit and the display unit; the data server is used for managing the data information of the data analysis unit and the judgment information of the judgment unit and providing the data information and the judgment information to the display unit.

4. The transformer on-load switch monitoring device of claim 1, wherein: the data acquisition unit comprises one or more of a vibration sensor, a current sensor, an angle sensor and a decibel sensor.

5. The transformer on-load switch monitoring device of claim 1, wherein: the display unit comprises a mobile terminal and/or an industrial personal computer.

6. The transformer on-load switch monitoring device of claim 4, wherein: the angle sensor collects the torque and/or the rotation angle of the on-load switch.

7. The transformer on-load switch monitoring device of claim 1, wherein: the monitoring device is used for monitoring the abnormal state of the on-load switch, and the abnormal state comprises one or more of jamming, breakage, sliding gear, failure of a limit switch and internal leakage of a transmission shaft.