CN210347843U - Alarm device is put in on-line monitoring office - Google Patents
Alarm device is put in on-line monitoring office Download PDFInfo
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- CN210347843U CN210347843U CN201921105391.8U CN201921105391U CN210347843U CN 210347843 U CN210347843 U CN 210347843U CN 201921105391 U CN201921105391 U CN 201921105391U CN 210347843 U CN210347843 U CN 210347843U
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Abstract
The utility model provides an on-line monitoring and partial discharge alarm device, which comprises an ultrahigh frequency sensor, a microprocessor, an alarm, a signal amplifier, an A/D converter, a state display lamp and a liquid crystal display; the ultrahigh frequency sensor, the signal amplifier, the A/D converter, the microprocessor and the liquid crystal display are sequentially connected through a circuit; the microprocessor is used for processing the digital signals sent by the A/D converter, and the liquid crystal display is used for displaying the processed data sent by the microprocessor in a map mode; the alarm and the state display lamp are respectively electrically connected with the microprocessor, and the state display lamp is used for displaying a state signal sent by the microprocessor; the alarm comprises a remote wireless alarm and a receiving terminal, the remote wireless alarm is electrically connected with the microprocessor, and the remote wireless alarm is wirelessly connected with the receiving terminal through a wireless signal; can send alarm signal to receiving terminal through wireless alarm and inform maintainer to the on-the-spot maintenance of very first time, improve the security.
Description
Technical Field
The utility model relates to an electrical equipment field especially relates to an alarm device is put in on-line monitoring office.
Background
In the operation of a Gas Insulated Switchgear (GIS) in electrical equipment, due to the existence of various defects inside the GIS, the GIS causes various types of partial discharge, such as corona, impurity discharge, and the like. Partial discharge inside the GIS can develop into an insulation breakdown fault after being continued for a period of time, so that a power failure accident is caused, the safe operation of a power system is influenced, and huge loss is caused to national economy. Therefore, the problem that the internal defects of the GIS are found in time and notified to maintenance personnel becomes an urgent need to be solved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: the on-line monitoring partial discharge alarm device can timely find the internal defects of the gas insulated switchgear and give an alarm to notify maintenance personnel.
In order to solve the technical problem, the utility model discloses a technical scheme be: an on-line monitoring partial discharge alarm device comprises an ultrahigh frequency sensor, a microprocessor, an alarm, a signal amplifier, an A/D converter, a state display lamp and a liquid crystal display;
the ultrahigh frequency sensor, the signal amplifier, the A/D converter, the microprocessor and the liquid crystal display are sequentially connected through a circuit;
the microprocessor is used for processing the digital signals sent by the A/D converter, and the liquid crystal display is used for displaying the processed data sent by the microprocessor in a map mode;
the alarm and the state display lamp are respectively electrically connected with the microprocessor, and the state display lamp is used for displaying a state signal sent by the microprocessor;
the alarm comprises a remote wireless alarm and a receiving terminal, the remote wireless alarm is electrically connected with the microprocessor, and the remote wireless alarm is wirelessly connected with the receiving terminal through a wireless signal.
Further, the alarm also comprises a voice player;
the voice player is electrically connected with the microprocessor;
the voice player is used for carrying out voice broadcast on the voice alarm instruction sent by the microprocessor.
Further, the alarm also comprises a voice player;
the voice player is used for carrying out voice alarm on the voice alarm instruction sent by the microprocessor.
Further, the state display lamp is an LED lamp.
Further, the device also comprises a memory;
the memory is respectively electrically connected with the microprocessor, the liquid crystal display and the A/D converter, and the memory is used for storing processing data sent by the microprocessor and digital signals sent by the A/D converter.
Further, the remote wireless alarm comprises a DW-M1F wireless data transceiver;
the interface of the DW-M1F wireless data transceiver supports RS232 and RS485 serial interface transmission standards.
Furthermore, the ultrahigh frequency sensor comprises an anti-interference outer shell, an anti-interference inner shell, a reflecting plate, an antenna and a baffle;
the anti-interference inner shell is arranged at the upper half part in the anti-interference outer shell, the reflecting plate, the antenna and the baffle are arranged in the anti-interference outer shell and located below the anti-interference inner shell, the baffle is arranged at the bottom of the anti-interference outer shell, the reflecting plate is arranged above the baffle, and the antenna is arranged between the reflecting plate and the baffle;
the anti-interference inner shell is of a multi-cavity structure.
The beneficial effects of the utility model reside in that: the ultrahigh frequency sensor has good anti-interference capability and can accurately position the partial discharge position, the ultrahigh frequency signal is amplified by the signal amplifier and converted into a digital signal by the A/D converter, the digital signal is received by the microprocessor and processed, and the digital signal is visually displayed on the liquid crystal display in a map form according to the processed result so as to identify different insulation defect types and carry out online monitoring for a long time; and the state display lamp is used for displaying the partial discharge state, so that the maintenance personnel can conveniently detect and analyze, and can send an alarm signal to the receiving terminal through the wireless alarm to inform the maintenance personnel in the first time when the maintenance personnel are not on the spot, so that the maintenance personnel can arrive at the site for maintenance in the first time, the power failure accident is prevented from influencing the safe operation of the power system, and the safety is improved.
Drawings
Fig. 1 is a schematic diagram showing a connection relationship between components of an online monitoring partial discharge alarm device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an ultrahigh frequency sensor of an online monitoring partial discharge alarm device according to an embodiment of the present invention;
description of reference numerals:
1. an anti-interference housing; 2. an anti-interference inner shell; 3. a reflective plate; 4. an antenna; 5. and a baffle plate.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, an on-line monitoring partial discharge alarm device includes an ultrahigh frequency sensor, a microprocessor, an alarm, a signal amplifier, an a/D converter, a status display lamp and a liquid crystal display;
the ultrahigh frequency sensor, the signal amplifier, the A/D converter, the microprocessor and the liquid crystal display are sequentially connected through a circuit;
the microprocessor is used for processing the digital signals sent by the A/D converter, and the liquid crystal display is used for displaying the processed data sent by the microprocessor in a map mode;
the alarm and the state display lamp are respectively electrically connected with the microprocessor, and the state display lamp is used for displaying a state signal sent by the microprocessor;
the alarm comprises a remote wireless alarm and a receiving terminal, the remote wireless alarm is electrically connected with the microprocessor, and the remote wireless alarm is wirelessly connected with the receiving terminal through a wireless signal.
From the above description, the beneficial effects of the present invention are: the ultrahigh frequency sensor has good anti-interference capability and can accurately position the partial discharge position, the ultrahigh frequency signal is amplified by the signal amplifier and converted into a digital signal by the A/D converter, the digital signal is received by the microprocessor and processed, and the digital signal is visually displayed on the liquid crystal display in a map form according to the processed result so as to identify different insulation defect types and carry out online monitoring for a long time; and the state display lamp is used for displaying the partial discharge state, so that the maintenance personnel can conveniently detect and analyze, and can send an alarm signal to the receiving terminal through the wireless alarm to inform the maintenance personnel in the first time when the maintenance personnel are not on the spot, so that the maintenance personnel can arrive at the site for maintenance in the first time, the power failure accident is prevented from influencing the safe operation of the power system, and the safety is improved.
Further, the alarm also comprises a voice player;
the voice player is electrically connected with the microprocessor;
the voice player is used for carrying out voice alarm on the voice alarm instruction sent by the microprocessor.
From the above description, the voice alarm is used for giving a voice alarm to the voice alarm instruction, so that a maintainer does not need to look at the liquid crystal display to observe the partial discharge state all the time during maintenance, and further the maintenance work of the maintainer is facilitated.
Further, the state display lamp is an LED lamp.
As can be known from the above description, the state display lamp is an LED lamp, which has good energy-saving effect and high illumination efficiency.
Further, the device also comprises a memory;
the memory is respectively electrically connected with the microprocessor, the liquid crystal display and the A/D converter, and the memory is used for storing processing data sent by the microprocessor and digital signals sent by the A/D converter.
As can be seen from the above description, the memory can store the high frequency signal data sent by the a/D converter and the digital signal data sent by the microprocessor, so that the maintainer can conveniently search the historical data for targeted maintenance.
Further, the remote wireless alarm comprises a DW-M1F wireless data transceiver;
the interface of the DW-M1F wireless data transceiver supports RS232 and RS485 serial interface transmission standards.
From the above description, the interface of the DW-M1F wireless data transceiver supports the RS232 and RS485 serial interface transmission standards, the use is simple and flexible, and the DW-M1F wireless data transceiver has strong electromagnetic interference resistance, is very suitable for long-distance data transmission, and improves the stability of remote wireless alarm.
Furthermore, the ultrahigh frequency sensor comprises an anti-interference outer shell, an anti-interference inner shell, a reflecting plate, an antenna and a baffle;
the anti-interference inner shell is arranged at the upper half part in the anti-interference outer shell, the reflecting plate, the antenna and the baffle are arranged in the anti-interference outer shell and located below the anti-interference inner shell, the baffle is arranged at the bottom of the anti-interference outer shell, the reflecting plate is arranged above the baffle, and the antenna is arranged between the reflecting plate and the baffle;
the anti-interference inner shell is of a multi-cavity structure.
According to the description, the anti-interference shell can effectively resist interference through the two anti-interference shells, so that ultrahigh frequency signals are efficiently collected, interference of low frequency signals is avoided, the anti-interference inner shell is of a multi-cavity structure, and crosstalk of internal circuit parts is avoided.
Example one
Referring to fig. 1 and 2, an on-line monitoring partial discharge alarm device includes an ultrahigh frequency sensor, a microprocessor, an alarm, a signal amplifier, an a/D converter, a status display lamp and a liquid crystal display;
the ultrahigh frequency sensor, the signal amplifier, the A/D converter, the microprocessor and the liquid crystal display are sequentially connected through a circuit;
the microprocessor is used for processing the digital signals sent by the A/D converter, and the liquid crystal display is used for displaying the processed data sent by the microprocessor in a map mode;
the alarm and the state display lamp are respectively electrically connected with the microprocessor, and the state display lamp is used for displaying a state signal sent by the microprocessor;
the alarm comprises a remote wireless alarm and a receiving terminal, the remote wireless alarm is electrically connected with the microprocessor, and the remote wireless alarm is wirelessly connected with the receiving terminal through a wireless signal.
Optionally, the ultrahigh frequency sensor can be replaced by a combined type TEV-AE sensor and a 700MHZ-3GHZ band-pass filter which are matched, the 700MHZ-3GHZ band-pass filter can filter signals outside the 700MHZ-3GHZ and meet the requirement for acquiring ultrahigh frequency signals, the TEV-AE sensor is TWTA-01, a TEV signal detector and an ultrasonic signal detector are integrated inside the TEV-AE sensor, and detection and positioning of local signals can be conveniently achieved.
Wherein, the alarm also comprises a voice player;
the voice player is used for voice broadcasting of voice alarm instructions sent by the microprocessor, for example, voice broadcasting of specific partial discharge states, partial discharge problems and safety prompts sent by the microprocessor.
Wherein, the status display lamp is an LED lamp.
Wherein, also include the memorizer;
the memory is respectively electrically connected with the microprocessor, the liquid crystal display and the A/D converter, and the memory is used for storing processing data sent by the microprocessor and digital signals sent by the A/D converter.
Wherein the remote wireless alarm comprises a DW-M1F wireless data transceiver;
the interface of the DW-M1F wireless data transceiver supports RS232 and RS485 serial interface transmission standards, and is simple and flexible to use.
Specifically, the DW-M1F wireless data transceiver adopts the metal casing, and transmitting power is 500mw, and communication distance can reach more than 2700 meters under the visual environment, and communication rate reaches 100kbps to can in time send alarm information in time to the maintainer.
As shown in fig. 2, the ultrahigh frequency sensor includes an anti-interference outer shell 1, an anti-interference inner shell 2, a reflector plate 3, an antenna 4 and a baffle 5;
the anti-interference inner shell 2 is arranged at the upper half part in the anti-interference outer shell 1, the reflecting plate 3, the antenna 4 and the baffle 5 are arranged in the anti-interference outer shell 1 and located below the anti-interference inner shell 2, the baffle 5 is arranged at the bottom of the anti-interference outer shell 1, the reflecting plate 3 is arranged above the baffle 5, and the antenna 4 is arranged between the reflecting plate 3 and the baffle 5;
the anti-interference inner shell 2 is of a multi-cavity structure.
Specifically, the baffle 5 is of an arch structure and plays a role in stable support.
To sum up, the utility model provides an alarm device is put in on-line monitoring office that can directly show the office through the cooperation of hyperfrequency sensor, signal amplifier and treater on LCD with the atlas form to the data is put to the maintenance of maintainer, and dispose voice player, status display lamp and wireless alarm, voice player can play the voice prompt at the maintenance scene, the maintainer need not always close the LCD can know the office and put the developments, status display lamp also can show the office directly perceived in real time and put the state, has improved maintenance efficiency, and long-range wireless alarm includes DW-M1F wireless data transceiver, can stably, effectively send alarm information to the maintainer, the maintainer can arrive the scene at the very first time and examine and repair, avoid causing the power failure accident and influence the safe operation of electric power system, the safety is improved.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. An on-line monitoring partial discharge alarm device is characterized by comprising an ultrahigh frequency sensor, a microprocessor, an alarm, a signal amplifier, an A/D converter, a state display lamp and a liquid crystal display;
the ultrahigh frequency sensor, the external interference signal filter, the signal amplifier, the A/D converter, the microprocessor and the liquid crystal display are sequentially connected through a circuit;
the microprocessor is used for processing the digital signals sent by the A/D converter, and the liquid crystal display is used for displaying the processed data sent by the microprocessor in a map mode;
the alarm and the state display lamp are respectively electrically connected with the microprocessor, and the state display lamp is used for displaying a state signal sent by the microprocessor;
the alarm comprises a remote wireless alarm and a receiving terminal, the remote wireless alarm is electrically connected with the microprocessor, and the remote wireless alarm is wirelessly connected with the receiving terminal through a wireless signal.
2. The on-line monitoring partial discharge alarm device according to claim 1, wherein the alarm further comprises a voice player;
the voice player is electrically connected with the microprocessor;
the voice player is used for carrying out voice broadcast on the voice alarm instruction sent by the microprocessor.
3. The on-line monitoring partial discharge alarm device according to claim 1, wherein the status display lamp is an LED lamp.
4. The on-line monitoring partial discharge alarm device according to claim 1, further comprising a memory;
the memory is respectively electrically connected with the microprocessor, the liquid crystal display and the A/D converter, and the memory is used for storing processing data sent by the microprocessor and digital signals sent by the A/D converter.
5. The on-line monitoring partial discharge alarm device according to claim 1, wherein the remote wireless alarm comprises a DW-M1F wireless data transceiver;
the interface of the DW-M1F wireless data transceiver supports RS232 and RS485 serial interface transmission standards.
6. The on-line monitoring partial discharge alarm device according to claim 1, wherein the ultra-high frequency sensor comprises an anti-interference outer shell, an anti-interference inner shell, a reflecting plate, an antenna and a baffle;
the anti-interference inner shell is arranged at the upper half part in the anti-interference outer shell, the reflecting plate, the antenna and the baffle are arranged in the anti-interference outer shell and located below the anti-interference inner shell, the baffle is arranged at the bottom of the anti-interference outer shell, the reflecting plate is arranged above the baffle, and the antenna is arranged between the reflecting plate and the baffle;
the anti-interference inner shell is of a multi-cavity structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921105391.8U CN210347843U (en) | 2019-07-15 | 2019-07-15 | Alarm device is put in on-line monitoring office |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921105391.8U CN210347843U (en) | 2019-07-15 | 2019-07-15 | Alarm device is put in on-line monitoring office |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210347843U true CN210347843U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921105391.8U Active CN210347843U (en) | 2019-07-15 | 2019-07-15 | Alarm device is put in on-line monitoring office |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210347843U (en) |
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2019
- 2019-07-15 CN CN201921105391.8U patent/CN210347843U/en active Active
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