CN212779366U - Transformer substation power failure maintenance anti-induction electric accident early warning device - Google Patents
Transformer substation power failure maintenance anti-induction electric accident early warning device Download PDFInfo
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- CN212779366U CN212779366U CN202021991985.6U CN202021991985U CN212779366U CN 212779366 U CN212779366 U CN 212779366U CN 202021991985 U CN202021991985 U CN 202021991985U CN 212779366 U CN212779366 U CN 212779366U
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Abstract
The utility model provides a transformer substation has a power failure and overhauls anti-induction electric accident early warning device, include: a signal acquisition module; the signal processing module is electrically connected with the signal acquisition module; the judging module is electrically connected with the signal processing module and is used for sending a signal to the controller when the electric field signal detection sensor is larger than a threshold value, the infrared detector detects that a person approaches and the sound sensor detects sound; the controller is electrically connected with the judging module; the wired communication module is electrically connected with the controller; the microprocessor is electrically connected with the wired communication module; and the alarm module is electrically connected with the microprocessor. The utility model discloses can realize the real time monitoring of circuit discharge range automatically, in time respond, improve the transformer substation and have a power failure and overhaul the security.
Description
Technical Field
The utility model relates to a power system electron technical field, concretely relates to transformer substation has a power failure and overhauls anti-induction electric accident early warning device.
Background
The power system power supply is a single-phase asymmetric power supply system, and when the power supply is carried out, a high-voltage electric field is generated in an adjacent space by a high-voltage power transmission line. At the same time, the alternating current will generate a strong unbalanced alternating magnetic field in the space surrounding it. Therefore, the line or the long conductor under the extra-high voltage transmission line can generate electrostatic induction and electromagnetic induction phenomena. Induced electricity exists in locations adjacent to parallel, cross-over live or co-tower line sections, as well as line spacing isolation switches, door frames, and the like. According to the previous induced voltage measurement test conditions, when the ground wire is not connected after power failure, the maximum induced voltage of a 500-kilovolt bus can reach 17.7 kilovolts, the maximum induced voltage of a 220-kilovolt line can reach 10.8 kilovolts, and the maximum induced voltage of a 66-kilovolt line can reach 2.9 kilovolts. The induction voltage is very high under the condition of not being grounded, and if the operator contacts the induction voltage with the high induction voltage, personal accidents are caused.
The danger points present at the work site can be divided into two categories: one category is the point of danger that appears and can be discovered by field inspection or careful anticipation. The other is a potential danger point which is difficult to judge accurately only by experience or imagination, so that corresponding countermeasures need to be analyzed and worked out scientifically. The induced electric influence generated by the same-tower parallel operation line and the removal of the ground wire protection at the line side easily cause electric shock risks.
The prior art does not have a device which can monitor the condition of a grounding system in real time and provide induced electricity early warning information when a maintainer enters a power failure site, and the personal safety of the maintainer cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is directed to solving the above-described problems. An object of the utility model is to provide a transformer substation has a power failure and overhauls anti-induction electric accident early warning device in solving above problem.
The utility model provides a transformer substation has a power failure and overhauls anti-induction electric accident early warning device, can include:
the signal acquisition module comprises an electric field signal detection sensor, an infrared detector and a sound sensor; the signal processing module is electrically connected with the signal acquisition module and comprises a signal amplification module, a rectification module, a filtering module and an analog-to-digital conversion module which are electrically connected in sequence; the judging module is electrically connected with the signal processing module and is used for sending a signal to the controller when the electric field signal detection sensor is larger than a threshold value, the infrared detector detects that a person approaches and the sound sensor detects sound; the controller is electrically connected with the judging module; the wired communication module is electrically connected with the controller; the microprocessor is electrically connected with the wired communication module; and the alarm module is electrically connected with the microprocessor.
Preferably, the transformer substation power failure overhaul induced electricity accident prevention early warning device can also include: and the grounding system monitor is electrically connected with the controller.
Preferably, the grounding system monitor can adopt an SL-038 grounding system monitor.
Preferably, the transformer substation power failure overhaul induced electricity accident prevention early warning device can also include: the wireless communication module comprises one of a WiFi wireless communication module, a Zigbee wireless communication module, a GSM/GPRS communication module and a 4G/5G communication module.
Preferably, the transformer substation power failure overhaul induced electricity accident prevention early warning device can also include: and the display is electrically connected with the microprocessor.
Preferably, the alarm module may include one or more of a voice alarm unit, a buzzer, and an alarm lamp.
Preferably, the transformer substation power failure overhaul induced electricity accident prevention early warning device can also include: the solar cell panel is electrically connected with the alarm module.
The utility model discloses transformer substation has a power failure to overhaul and prevents induced electric accident early warning device has following technological effect:
the application relates to an induced electricity accident prevention early warning device for power failure maintenance of a transformer substation; through the electric field signal detection sensor, the infrared detector and the sound sensor, automatic early warning prompt is realized, animals and irrelevant personnel are prevented from entering the inductance range of the transformer substation, and the power failure maintenance safety of the transformer substation is improved; meanwhile, real-time monitoring of the line discharge range can be automatically realized, timely response is realized, and the workload of managers is reduced.
Other characteristic features and advantages of the invention will become apparent from the following description of exemplary embodiments, which is to be read in connection with the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to indicate like elements. The drawings in the following description are directed to some, but not all embodiments of the invention. For a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1 exemplarily shows a structure diagram of the anti-induction electric accident early warning device for power failure maintenance of the transformer substation;
fig. 2 exemplarily shows a structure diagram of the signal processing module of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The transformer substation power failure maintenance induced electricity accident prevention early warning device is described in detail below with reference to the accompanying drawings and embodiments.
Examples
As shown in fig. 1-2, an object of the utility model is to provide a transformer substation has a power failure and overhauls anti-induction electric accident early warning device, can include:
the signal acquisition module comprises an electric field signal detection sensor, an infrared detector and a sound sensor; the signal processing module is electrically connected with the signal acquisition module and comprises a signal amplification module, a rectification module, a filtering module and an analog-to-digital conversion module which are electrically connected in sequence; the judging module is electrically connected with the signal processing module and is used for sending a signal to the controller when the electric field signal detection sensor is larger than a threshold value, the infrared detector detects that a person approaches and the sound sensor detects sound; the controller is electrically connected with the judging module; the wired communication module is electrically connected with the controller; the microprocessor is electrically connected with the wired communication module; and the alarm module is electrically connected with the microprocessor.
Through the combination of electric field signal detection sensor, infrared detector, sound sensor, in time provide response electricity early warning information when the staff gets into the power failure and overhauls the scene, be of value to and guarantee staff's personal safety.
In order to further improve the transformer substation and have a power failure and overhaul the security, transformer substation has a power failure and overhauls anti-induction electric accident early warning device and can also include: and the grounding system monitor is electrically connected with the controller.
The SL-038 grounding system monitor is used for monitoring the condition of the grounding system in real time, and once the grounding system fails or a grounding wire is manually removed, a signal is rapidly provided for an alarm system.
Generally, the grounding system monitor can adopt an SL-038 grounding system monitor. The SL-038 system monitoring resistance value is adjustable (0-500 omega), the ground system condition can be monitored in real time, the ground monitoring resistance value can be set according to the requirement of the working ground resistance value, and an alarm is given when the ground monitoring resistance value exceeds the set resistance value or the ground system is disconnected; the reliability of the grounding system is effectively improved. The main function is to monitor whether the ground wire is firm in the power failure maintenance process, and to provide signals to the alarm system once the grounding system fails or the grounding wire is manually removed.
In order to improve the early warning ability, the transformer substation has a power failure and overhauls anti-induction electric accident early warning device and can also include: the wireless communication module comprises one of a WiFi wireless communication module, a Zigbee wireless communication module, a GSM/GPRS communication module and a 4G/5G communication module. Early warning information can be provided for detection personnel in real time in a wireless communication mode.
In order to realize real-time monitoring, the transformer substation power failure overhaul anti-induction electric accident early warning device can also comprise: and the display is electrically connected with the microprocessor.
When the alarm module is implemented specifically, the alarm module may include one or more of a voice alarm unit, a buzzer and an alarm lamp.
In order to improve alarm module's duration, the transformer substation has a power failure and overhauls anti-induction electric accident early warning device can also include: the solar cell panel is electrically connected with the alarm module.
The working principle of the transformer substation power failure maintenance induced electricity accident prevention early warning device is as follows:
when the device works, the alarm module can transmit information such as electric field intensity, images and sound of the transformer substation to the controller in real time, the controller transmits the information to the microprocessor through the communication module and displays the information through the display, the control center acquires and stores the received information such as the electric field intensity, the images and the sound in real time, the transformer substation is subjected to alarm in a voice alarm unit, a buzzer and an alarm lamp mode, operators are reminded of entering a dangerous area and surrounding operators are reminded of being in a dangerous state at the same time, and the device is high in use stability, high in anti-interference performance, simple and convenient.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of additional like elements in the article or device comprising the element.
The above embodiments are merely for illustrating the technical solutions of the present invention and are not to be construed as limiting, and the present invention is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that various modifications and equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all the modifications and equivalents should be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a transformer substation has a power failure and overhauls anti-induction electric accident early warning device which characterized in that includes:
the signal acquisition module comprises an electric field signal detection sensor, an infrared detector and a sound sensor;
the signal processing module is electrically connected with the signal acquisition module and comprises a signal amplification module, a rectification module, a filtering module and an analog-to-digital conversion module which are electrically connected in sequence;
the judgment module is electrically connected with the signal processing module and used for sending a signal to the controller when the electric field signal detection sensor is larger than a threshold value, the infrared detector detects that a person approaches, and the sound sensor detects sound;
the controller is electrically connected with the judging module;
the wired communication module is electrically connected with the controller;
the microprocessor is electrically connected with the wired communication module;
and the alarm module is electrically connected with the microprocessor.
2. The substation blackout overhaul induction-preventing electric accident early warning device according to claim 1, further comprising:
and the grounding system monitor is electrically connected with the controller.
3. The substation blackout overhaul induced electricity accident prevention early warning device as claimed in claim 2,
the grounding system monitor adopts an SL-038 grounding system monitor.
4. The substation blackout overhaul induction-preventing electric accident early warning device according to claim 1, further comprising:
the wireless communication module comprises one of a WiFi wireless communication module, a Zigbee wireless communication module, a GSM/GPRS communication module and a 4G/5G communication module.
5. The substation blackout overhaul induction-preventing electric accident early warning device according to claim 1, further comprising:
and the display is electrically connected with the microprocessor.
6. The substation blackout overhaul induced electricity accident prevention early warning device as claimed in claim 1,
the alarm module comprises one or more of a voice alarm unit, a buzzer and an alarm lamp.
7. The substation blackout overhaul induction-preventing electric accident early warning device according to claim 1, further comprising:
the solar cell panel is electrically connected with the alarm module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021991985.6U CN212779366U (en) | 2020-09-11 | 2020-09-11 | Transformer substation power failure maintenance anti-induction electric accident early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021991985.6U CN212779366U (en) | 2020-09-11 | 2020-09-11 | Transformer substation power failure maintenance anti-induction electric accident early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212779366U true CN212779366U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021991985.6U Active CN212779366U (en) | 2020-09-11 | 2020-09-11 | Transformer substation power failure maintenance anti-induction electric accident early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212779366U (en) |
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- 2020-09-11 CN CN202021991985.6U patent/CN212779366U/en active Active
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