CN115585844A - Visual intelligent monitoring system for cable well data of medium-low voltage power distribution room - Google Patents
Visual intelligent monitoring system for cable well data of medium-low voltage power distribution room Download PDFInfo
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- CN115585844A CN115585844A CN202211235058.5A CN202211235058A CN115585844A CN 115585844 A CN115585844 A CN 115585844A CN 202211235058 A CN202211235058 A CN 202211235058A CN 115585844 A CN115585844 A CN 115585844A
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- cable
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- partial discharge
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention belongs to the technical field of electric power. Visual intelligent monitoring system of well low voltage distribution room cable shaft data, its characterized in that: the system comprises a temperature and humidity sensor, a water level sensor, a cable partial discharge monitoring device, a visual cover plate, an LED waterproof lamp and an intelligent environment comprehensive monitoring device; the visual cover plate comprises a cover plate and a display, the display is arranged on the upper surface of the cover plate, and the cover plate covers the upper end of a wellhead of the cable well; the temperature and humidity sensor, the water level sensor, the cable partial discharge monitoring device, the display and the LED waterproof lamp are respectively connected with the intelligent environment comprehensive monitoring device through data lines, and the temperature and humidity sensor, the water level sensor, the cable partial discharge monitoring device and the LED waterproof lamp are respectively arranged on a well wall of the cable well; the power input end of the intelligent environment comprehensive monitoring device is connected with a power line laid in the cable trench through a wire. The monitoring system has the functions of water level monitoring, temperature monitoring, humidity monitoring and cable partial discharge monitoring.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a visual intelligent monitoring system for cable well data of a medium and low voltage distribution room.
Background
The cable trench is an underground pipeline used for laying and replacing electric power or telecommunication cable facilities, as shown in fig. 1 and fig. 2, a plurality of support frames are arranged at intervals in the extending direction in the cable trench and used for supporting cables, a cable well (inspection well) is arranged at the cable trench with a certain distance (50-100 meters long), and a well cover is covered at the well mouth of the cable well. The power distribution room is provided with a cable well which is communicated with the cable trench.
The problems that exist in the current cable well (cable trench): the system comprises a cable well (cable trench) accumulated water lack monitoring device, a cable well temperature and humidity lack monitoring device and a cable well partial discharge lack monitoring device.
Chinese patent: 202220555681.8 discloses an intelligent cable temperature measuring device for a cable duct, which can monitor the temperature of a cable in real time. Chinese patent: CN202123205808 discloses a cable pit intelligence management and control system of transformer substation, accessible water level monitoring and suction pump linkage provide the guarantee for cable operational environment.
However, no monitoring system which has the functions of water level monitoring, temperature monitoring, humidity monitoring and cable partial discharge monitoring is available.
Disclosure of Invention
The invention aims to provide a visualized intelligent monitoring system for cable well data of a medium and low voltage power distribution room, which has the functions of water level monitoring, temperature monitoring, humidity monitoring and cable partial discharge monitoring.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: visual intelligent monitoring system of well low voltage distribution room cable shaft data, its characterized in that: the intelligent environment comprehensive monitoring system comprises a temperature and humidity sensor 6, a water level sensor 7, a cable partial discharge monitoring device, a visual cover plate, an LED waterproof lamp 11 and an intelligent environment comprehensive monitoring device 13; the visual cover plate comprises a cover plate 5 and a display 10, the display 10 is installed on the upper surface of the cover plate 5, a through hole for a data line to pass through is formed in the cover plate 5, and the cover plate 5 covers the upper end of a wellhead of the cable well; the temperature and humidity sensor 6, the water level sensor, the cable partial discharge monitoring device, the display 10 and the LED waterproof lamp 11 are respectively connected with the intelligent environment comprehensive monitoring device 13 through data lines, and the temperature and humidity sensor 6, the water level sensor, the cable partial discharge monitoring device and the LED waterproof lamp 11 are respectively arranged on a well wall of the cable well; the power input end of the intelligent environment comprehensive monitoring device 13 is connected with a power line laid in the cable trench through a wire.
The intelligent environment comprehensive monitoring device 13 is internally provided with a wireless communication module, and the intelligent environment comprehensive monitoring device 13 is in wireless communication connection with the first server 16, the second server 17, the client 18 and the workstation 19 through the wireless communication module by the network 15.
The cable partial discharge monitoring device comprises a cable partial discharge host 8 and a cable partial discharge sensor 21, wherein the cable partial discharge sensor 21 comprises a high-frequency current large sensor and a high-frequency current small sensor, the high-frequency current large sensor and the high-frequency current small sensor are respectively connected with the cable partial discharge host 8 through data lines, and the cable partial discharge host 8 is connected with the intelligent environment comprehensive monitoring device 13 through the data lines.
The visualized intelligent monitoring system for the medium and low voltage distribution room cable well data further comprises a water pump 20, the water pump 20 is located at the bottom of the cable well, a power line of the water pump 20 is connected with the intelligent environment comprehensive monitoring device 13, a water outlet pipe of the water pump 20 is connected with an input interface of a pre-buried water pipe 22, and an output interface of the water pipe 22 is located on the ground.
The visualized intelligent monitoring system for the medium-low voltage power distribution room cable well data further comprises a pressure monitoring device, the pressure monitoring device is connected with the intelligent environment comprehensive monitoring device 13 through a data line, and the pressure monitoring device is installed on the wall of the cable well.
The pressure monitoring device comprises a pressure collector and a pressure sensor 9, the pressure sensor is positioned below the cover plate, the pressure sensor is connected with the pressure collector through a data line, and the pressure collector is connected with the intelligent environment comprehensive monitoring device 13 through the data line.
The visual intelligent monitoring system of medium and low voltage distribution room cable shaft data still includes reputation alarm lamp 23, and the reputation alarm lamp is installed on the upper surface of apron 5, and the reputation alarm lamp is put the host computer 8 by data line and cable office and is linked to each other.
The beneficial effects of the invention are: the monitoring system has the functions of water level monitoring, temperature monitoring, humidity monitoring and cable partial discharge monitoring.
Drawings
Fig. 1 is a transverse sectional view of a conventional cable trench.
Fig. 2 is a longitudinal sectional view of a conventional cable trench.
Fig. 3 is a structural block diagram of a cable well data visualization intelligent monitoring system of a medium and low voltage distribution room of the invention.
Fig. 4 is a schematic view of installation positions of the temperature and humidity sensor, the water level sensor, the cable partial discharge host, the visual cover plate and the LED waterproof lamp according to the present invention.
In the figure: the system comprises a cable trench body, a support frame 2, a cable 3, a cable 4, a wellhead of a cable well 5, a cover plate 6, a temperature and humidity sensor 7, a water level sensor 8, a cable partial discharge host machine 9, a pressure sensor 10, a display 11, an LED waterproof lamp 12, a data line 13, an intelligent environment comprehensive monitoring device 14, a router 15, a network 16, a first server 17, a second server 18, a client 18, a workstation 19, a water pump 20, a cable partial discharge sensor 21, a water pipe 22 and an acousto-optic alarm lamp 23.
Detailed Description
For a better understanding of the present invention, the technical solutions of the present invention will be further described below with reference to the following examples and accompanying drawings.
As shown in fig. 3 and 4, the visualized intelligent monitoring system for cable well data of the medium and low voltage distribution room comprises a temperature and humidity sensor 6, a water level sensor 7, a cable partial discharge monitoring device, a visualized cover plate, an LED waterproof lamp 11 and an intelligent environment comprehensive monitoring device 13; the visual cover plate comprises a cover plate 5 and a display 10, wherein the display 10 is installed on the upper surface of the cover plate 5 (the cover plate 5 is provided with a through hole for a data line to pass through), the cover plate 5 is provided with a through hole for a data line to pass through, and the cover plate 5 covers the upper end of the wellhead of the cable well (namely, the cover plate 5 is placed on the upper end of the wellhead of the cable well); the temperature and humidity sensor 6, the water level sensor, the cable partial discharge monitoring device, the display 10 and the LED waterproof lamp 11 are respectively connected with the intelligent environment comprehensive monitoring device 13 through data lines, and the temperature and humidity sensor 6, the water level sensor, the cable partial discharge monitoring device and the LED waterproof lamp 11 are respectively arranged on a well wall of the cable well; the power input end of the intelligent environment comprehensive monitoring device 13 is connected with a power line laid in the cable trench by a lead (power supply).
The intelligent environment comprehensive monitoring device 13 is internally provided with a wireless communication module, and the intelligent environment comprehensive monitoring device 13 is in wireless communication connection with a first server 16, a second server 17, a client 18 and a workstation (or called an operation and maintenance center) 19 through a network 15 through the wireless communication module.
The cable partial discharge monitoring device comprises a cable partial discharge host machine 8 and a cable partial discharge sensor 21, wherein the cable partial discharge sensor 21 comprises a high-frequency current large sensor and a high-frequency current small sensor, the high-frequency current large sensor and the high-frequency current small sensor are respectively connected with the cable partial discharge host machine 8 through data lines, and the cable partial discharge host machine 8 is connected with the intelligent environment comprehensive monitoring device 13 through the data lines.
The visualized intelligent monitoring system for the medium and low voltage distribution room cable well data further comprises a water pump 20, the water pump 20 is located at the bottom of the cable well, a power line of the water pump 20 is connected with the intelligent environment comprehensive monitoring device 13 (the intelligent environment comprehensive monitoring device 13 controls the on and off of the water pump 20), a water outlet pipe of the water pump 20 is connected with an input interface of a pre-buried water pipe 22, and an output interface of the water pipe 22 is located on the ground.
The visualized intelligent monitoring system for the medium-low voltage power distribution room cable well data further comprises a pressure monitoring device, the pressure monitoring device is connected with the intelligent environment comprehensive monitoring device 13 through a data line, and the pressure monitoring device is installed on the wall of the cable well.
The pressure monitoring device comprises a pressure collector and a pressure sensor 9, the pressure sensor is positioned below the cover plate, the pressure sensor is connected with the pressure collector through a data line, and the pressure collector is connected with the intelligent environment comprehensive monitoring device 13 through the data line.
The visualized intelligent monitoring system for the medium and low voltage power distribution room cable well data further comprises an acousto-optic alarm lamp 23, wherein the acousto-optic alarm lamp is installed on the upper surface of the cover plate 5, and the acousto-optic alarm lamp is connected with the cable partial discharge host 8 through a data line.
The pressure monitoring device, the cable partial discharge monitoring device (or called as cable partial discharge on-line monitoring device), and the intelligent environment comprehensive monitoring device (such as a microprocessor, or an NPZ-DL-001 distribution transformer intelligent environment comprehensive monitoring device) 13 can all adopt the prior known technology.
The working principle is as follows:
1. temperature and humidity sensor
The temperature and humidity state of the underground cable of the cable trench is monitored in real time by adopting a high-precision temperature and humidity measuring unit, when the temperature and humidity of the environment of the underground cable are detected to be abnormal, the temperature and humidity state is uploaded to an intelligent environment comprehensive monitoring device 13, and the alarm information is pushed to a station end background (a first server 16, a second server 17 and a client 18) or a workstation (or called an operation and maintenance center) in a 4G transmission mode.
The temperature and humidity sensor is installed on the side wall of the cable well (cable trench) in a wall-mounted mode.
2. Water level sensor
The built-in miniature signal processing circuit can carry out teletransmission, has good stability and reliability, but real-time supervision cable pit underground cable's water level height to can link the water pump and open and stop. When the water level of the underground cable of the cable trench is detected to be too high or exceed a threshold value, the water level is uploaded to the intelligent environment comprehensive monitoring device 13, the water pump is started to drain water in a linkage mode, and the alarm information and the water pump state are pushed to a station end background (a first server 16, a second server 17 and a client 18) or a workstation (or an operation and maintenance center).
The water level sensor is installed in a suspension mode and is vertically arranged at the bottom of the cable trench.
3. Cable partial discharge monitoring device
Pulse current signals at the cable joint are coupled through high-frequency current large sensors arranged on bodies at two ends of the cable joint and high-frequency current small sensors arranged on cross interconnection lines; the coupled pulse signal is transmitted to a cable partial discharge host (or front-end partial discharge host) through a coaxial cable, and the analog signal is amplified and converted into a data signal through analog-digital conversion. The method is used for monitoring the partial discharge value of the underground cable in real time. When the abnormal discharge value is detected, the abnormal discharge value is uploaded to the intelligent environment comprehensive monitoring device 13, and the partial discharge value and the discharge times are pushed to a station background (a first server 16, a second server 17 and a client 18) or a workstation (or an operation and maintenance center) in a 4G transmission mode.
The high-frequency current sensor is clamped on a cable cross interconnection grounding wire or a direct grounding wire, and is installed in a core-through mode, and the high-frequency current sensor is fixed.
The cable partial discharge host (or called front end partial discharge host) is arranged in the waterproof box and is arranged on the side wall of the cable well (cable trench) in a wall-mounted manner.
4. Pressure monitoring device
The pressure collector is made of stainless steel, has high comprehensive precision and good long-term stability, and conditions the output signal into a standard voltage or current signal and transmits the standard voltage or current signal to the pressure collector. When the data of the pressure sensor 9 below the cable trench cover plate is detected to be abnormal, the cover plate is judged or opened by someone, information is uploaded to the intelligent environment comprehensive monitoring device 13, and the alarm information and the water pump state are pushed to a station end background (a first server 16, a second server 17 and a client 18) or a workstation (or an operation and maintenance center).
The pressure sensors 9 are arranged at four corners or four sides of the cover plate, and the height of the sensors is slightly higher than the supporting surface of the cover plate. The pressure collector is arranged in a waterproof box, and the waterproof box is arranged on the side wall of the cable well (cable trench).
5. Visual apron
The visual cover plate comprises a cover plate 5 and a display 10, and data can be displayed on the display 10. The cover plate is made of silicon dioxide processed at high temperature, and is an anticorrosive stainless steel frame, customizable in size, safe and durable.
6. LED waterproof lamp
The surface is sealed by a waterproof silica gel layer, and the protection grade of IP67 is provided. Can link into room infrared detector, when will detecting that someone gets into the power distribution room, open the LED lamp through intelligent environment integrated monitoring device to last a period.
The LED waterproof lamp is arranged on the side wall of the cable well (cable trench).
7. Intelligent environment comprehensive monitoring device
The intelligent environment comprehensive monitoring device 13 is an intelligent monitoring device integrating the functions of switching value input, switching value output, downstream communication acquisition, background communication alarm and the like, covers the functions required by field acquisition of an industrial control and monitoring system, and can be an intelligent acquisition host which can be flexibly configured according to the specific requirements of various application occasions.
8. System master configuration list
The visualized intelligent monitoring system for the cable well data of the medium and low voltage power distribution room mainly comprises the following parts:
Claims (7)
1. visual intelligent monitoring system of well low voltage distribution room cable shaft data, its characterized in that: the intelligent environment monitoring system comprises a temperature and humidity sensor (6), a water level sensor (7), a cable partial discharge monitoring device, a visual cover plate, an LED waterproof lamp (11) and an intelligent environment comprehensive monitoring device (13); the visual cover plate comprises a cover plate (5) and a display (10), the display (10) is installed on the upper surface of the cover plate (5), a through hole for a data line to pass through is formed in the cover plate (5), and the cover plate (5) covers the upper end of a wellhead of the cable well; the temperature and humidity sensor (6), the water level sensor, the cable partial discharge monitoring device, the display (10) and the LED waterproof lamp (11) are respectively connected with the intelligent environment comprehensive monitoring device (13) through data lines, and the temperature and humidity sensor (6), the water level sensor, the cable partial discharge monitoring device and the LED waterproof lamp (11) are respectively arranged on a well wall of the cable well; the power input end of the intelligent environment comprehensive monitoring device (13) is connected with a power line laid in the cable trench through a lead.
2. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 1, characterized in that: the intelligent environment comprehensive monitoring device (13) is internally provided with a wireless communication module, and the intelligent environment comprehensive monitoring device (13) is in wireless communication connection with the first server (16), the second server (17), the client (18) and the workstation (19) through the wireless communication module by a network (15).
3. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 1, characterized in that: the cable partial discharge monitoring device comprises a cable partial discharge host (8) and a cable partial discharge sensor (21), wherein the cable partial discharge sensor (21) comprises a high-frequency current large sensor and a high-frequency current small sensor, the high-frequency current large sensor and the high-frequency current small sensor are respectively connected with the cable partial discharge host (8) through data lines, and the cable partial discharge host (8) is connected with the intelligent environment comprehensive monitoring device (13) through the data lines.
4. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 1, characterized in that: the visualized intelligent monitoring system for the medium and low voltage distribution room cable well data further comprises a water pump (20), wherein the water pump (20) is located at the bottom of the cable well, a power line of the water pump (20) is connected with the intelligent environment comprehensive monitoring device (13), a water outlet pipe of the water pump (20) is connected with an input interface of a pre-buried water pipe (22), and an output interface of the water pipe (22) is located on the ground.
5. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 1, characterized in that: the visualized intelligent monitoring system for the medium and low voltage distribution room cable well data further comprises a pressure monitoring device, wherein the pressure monitoring device is connected with the intelligent environment comprehensive monitoring device (13) through a data line, and the pressure monitoring device is installed on the wall of the cable well.
6. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 5, characterized in that: the pressure monitoring device comprises a pressure collector and a pressure sensor (9), the pressure sensor is positioned below the cover plate, the pressure sensor is connected with the pressure collector through a data line, and the pressure collector is connected with the intelligent environment comprehensive monitoring device (13) through the data line.
7. The medium and low voltage distribution room cable well data visualization intelligent monitoring system according to claim 1, characterized in that: the visual intelligent monitoring system of medium and low voltage distribution room cable shaft data still includes audible and visual alarm lamp (23), and the audible and visual alarm lamp is installed on the upper surface of apron (5), and the audible and visual alarm lamp is put host computer (8) by data line and cable office and is linked to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211235058.5A CN115585844A (en) | 2022-10-10 | 2022-10-10 | Visual intelligent monitoring system for cable well data of medium-low voltage power distribution room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211235058.5A CN115585844A (en) | 2022-10-10 | 2022-10-10 | Visual intelligent monitoring system for cable well data of medium-low voltage power distribution room |
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| Publication Number | Publication Date |
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| CN115585844A true CN115585844A (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211235058.5A Pending CN115585844A (en) | 2022-10-10 | 2022-10-10 | Visual intelligent monitoring system for cable well data of medium-low voltage power distribution room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107236A (en) * | 2017-12-06 | 2018-06-01 | 国网宁夏电力有限公司宁东供电公司 | A kind of cable duct intelligent acquisition unit protection babinet |
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2022
- 2022-10-10 CN CN202211235058.5A patent/CN115585844A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107236A (en) * | 2017-12-06 | 2018-06-01 | 国网宁夏电力有限公司宁东供电公司 | A kind of cable duct intelligent acquisition unit protection babinet |
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