CN109683074A - A kind of high-tension switch cabinet partial discharge monitoring early warning system and method - Google Patents
A kind of high-tension switch cabinet partial discharge monitoring early warning system and method Download PDFInfo
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- CN109683074A CN109683074A CN201910165050.8A CN201910165050A CN109683074A CN 109683074 A CN109683074 A CN 109683074A CN 201910165050 A CN201910165050 A CN 201910165050A CN 109683074 A CN109683074 A CN 109683074A
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- tension switch
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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
- G01R31/1218—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 using optical methods; using charged particle, e.g. electron, beams or X-rays
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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
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- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
A kind of high-tension switch cabinet partial discharge monitoring early warning system and method disclosed in the present application, system includes: the ozone monitoring sensor and server of communication network connection, wherein, ozone monitoring sensor is multiple, and multiple ozone monitoring sensors are separately positioned on different location in high-tension switch cabinet；Ozone monitoring sensor includes: monitoring device and communication module；Monitoring device is used to monitor the ozone content in high-tension switch cabinet, and converts corresponding electric signal for ozone content, electric signal is exported to communication module, communication module is used to the electric signal received being sent to server；The electric signal that server is used to send multiple ozone monitoring sensors is handled, and is obtained the average value of the ozone content of each oxygen monitoring sensor monitoring, is realized high-tension switch cabinet partial discharge monitoring and early warning according to the average value of ozone content.Using system above-mentioned, it can be achieved that improving detection accuracy because of the ozone that shelf depreciation generates in comprehensive monitoring high-tension switch cabinet.
Description
Technical field
This application involves partial discharge monitoring technical field inside gas-insulated high-voltage system more particularly to a kind of high press off
Close cabinet partial discharge monitoring early warning system and method.
Background technique
High-tension switch cabinet is a kind of high voltage electric equipment that multiple equipment is centrally placed together, effect be receive and
Distribute the electric energy of power grid.It is mainly insulated using air insulation and solid insulating material inside high-tension switch cabinet.For high-voltage switch gear
The chemically-reactive substance for for insulation in cabinet, generating heat caused by shelf depreciation, being generated in charged particle shock and discharge process
Matter and all kinds of rays are all to have destructive to the solid insulating material in high-tension switch cabinet, or even seriously threaten high-voltage switch gear
Cabinet safety.Therefore, it is necessary to realize on-line monitoring and early warning to high-tension switch cabinet inside shelf depreciation, when partial discharge quantity is more than
When to a certain degree, it should overhaul or replace in time.
Currently, the on-line monitoring early warning of shelf depreciation is by electrical measuring method monitoring and warning, in the party inside high-tension switch cabinet
In method, by, because of ultrasonic wave or electromagnetic wave that shelf depreciation generates, being pressed off in detector monitors high-tension switch cabinet to monitor height
Cabinet shelf depreciation situation is closed, by the intensity of analysis ultrasonic wave or electromagnetic wave, realizes that high-tension switch cabinet shelf depreciation is supervised online
Survey early warning.
But inventor has found in the research process of the application, existing high-tension switch cabinet partial discharge monitoring
In method, since the internal structure of high-tension switch cabinet is complex, ultrasonic wave or electromagnetic wave occur more in high-tension switch cabinet
It can decay after secondary catadioptric, therefore, to different location in high-tension switch cabinet or different types of high-tension switch cabinet part
The monitoring sensitivity of electric discharge is different, and then causes the early warning of high-tension switch cabinet partial discharge monitoring inaccurate.
Summary of the invention
This application provides a kind of high-tension switch cabinet partial discharge monitoring early warning system and methods, to solve existing skill
In art, using ultrasonic wave perhaps electromagnetic wave monitoring high-tension switch cabinet shelf depreciation when to different location in high-tension switch cabinet or
The monitoring sensitivity of different types of high-tension switch cabinet shelf depreciation is different, and then high-tension switch cabinet shelf depreciation is caused to be supervised online
Survey the problem of early warning inaccuracy.
In a first aspect, the embodiment of the present application provides a kind of high-tension switch cabinet partial discharge monitoring early warning system, comprising:
The ozone monitoring sensor and server of communication network connection, wherein the ozone monitoring sensor is multiple, multiple ozone prisons
It surveys sensor and is separately positioned on different location in high-tension switch cabinet；
The ozone monitoring sensor includes: monitoring device and communication module；
The monitoring device is used to monitor the ozone content in high-tension switch cabinet, and converts the ozone content to accordingly
Electric signal, the electric signal is exported to the communication module, wherein the electric signal be the electricity comprising the ozone content
Signal；
The communication module is used to the electric signal received being sent to the server；
The electric signal that the server is used to send the multiple ozone monitoring sensor is handled, and obtains each oxygen prison
The average value for surveying the ozone content of sensor monitoring realizes the high-tension switch cabinet part according to the average value of the ozone content
On-line Discharge monitoring and early warning.
With reference to first aspect, in one implementation, the monitoring device includes:
Measure gas chamber, ultraviolet source, the first light transmission quartz glass plate, the second light transmission quartz glass plate, optical filter, photoelectricity inspection
Survey device and control/signal processing module；
The measurement gas chamber is provided with air inlet and air outlet, and air pump, the air pump connection are provided at the gas outlet
Control/the signal processing module；
The ultraviolet source, the first light transmission quartz glass plate and the second light transmission quartz glass plate, optical filter and Photoelectric Detection
The center of device is located on the same line；
The ultraviolet source is arranged on the outside of the measurement gas chamber, the first light transmission quartz glass plate described in face, the purple
Outer light source is used to provide ultraviolet light for the measurement gas chamber；
It is opposite that the first light transmission quartz glass plate and the second light transmission quartz glass plate are separately positioned on the measurement gas chamber
Vertical both sides；The first light transmission quartz glass plate and the second light transmission quartz glass plate are used to provide disengaging institute for the ultraviolet light
State the channel of measurement gas chamber；
The optical filter is arranged between the second light transmission quartz glass plate and the photoelectric detector, the optical filter
For filtering ultraviolet light of the channel exit in addition to 254nm；
The photoelectric detector connects the control/signal processing module, and the photoelectric detector passes through institute for detecting
The ultraviolet light after optical filter filtering is stated, and is exported to the control/signal processing module；
The control/signal processing module connects the ultraviolet source, and the control/signal processing module is used for according to institute
The ultraviolet light of ultraviolet source and the Photoelectric Detection module transfer is stated, calculates the ozone content in the measurement gas chamber, and will meter
What is obtained is converted into electric signal transmission to the communication module to ozone content.
With reference to first aspect, in one implementation, the monitoring device further include: pressure sensor and temperature sensing
Device；
The bottom of the measurement gas chamber, the pressure sensor and temperature is arranged in the pressure sensor and temperature sensor
It spends sensor and connects the control/signal processing module；The pressure sensor is used to acquire the pressure in the measurement gas chamber
Signal, and it is transmitted to the control/signal processing module；The temperature sensor is used to acquire the temperature in the measurement gas chamber
Signal, and it is transmitted to the control/signal processing module；
Control/the signal processing module is used to the temperature signal received and pressure signal being transmitted to the communication mould
Block.
With reference to first aspect, in one implementation, the server is also used to:
According to the average value of the ozone content, determine ozone content in the high-tension switch cabinet be more than preset threshold or
Person's ozone content growth trend is abnormal, issues ozone concentration abnormity early warning information.
With reference to first aspect, in one implementation, the high-tension switch cabinet partial discharge monitoring early warning system
Further include: mobile terminal；
The mobile terminal be used to receive the high-tension switch cabinet partial discharge monitoring that the server is sent and
The information of early warning and guides maintenance work personnel to be repaired according to the information to high-tension switch cabinet.
With reference to first aspect, in one implementation, the measurement gas chamber by not with ozone reaction, and have good machine
The inert material of tool characteristic is made.
Second aspect, the embodiment of the present application part provide a kind of pre- police of high-tension switch cabinet partial discharge monitoring
Method, the high-tension switch cabinet partial discharge monitoring method for early warning are applied to the described in any item high-tension switch cabinets of first aspect
Partial discharge monitoring early warning system, the high-tension switch cabinet partial discharge monitoring method for early warning include:
Monitoring device monitors the ozone content in high-tension switch cabinet, and converts corresponding telecommunications for the ozone content
Number, the electric signal is exported to communication module, wherein the electric signal is the electric signal comprising the ozone content；
The electric signal received is sent to server by the communication module；
The electric signal that the server sends the multiple ozone monitoring sensor is handled, and is obtained each oxygen monitoring and is passed
The average value of the ozone content of sensor monitoring realizes the high-tension switch cabinet shelf depreciation according to the average value of the ozone content
On-line monitoring and early warning.
In conjunction with second aspect, in one implementation, the ozone content in the monitoring device monitoring high-tension switch cabinet,
And corresponding electric signal is converted by the ozone content, the electric signal is exported to communication module, comprising:
Ultraviolet source provides ultraviolet light for measurement gas chamber；
First light transmission quartz glass plate and the second light transmission quartz glass plate provide for the ultraviolet light passes in and out the measurement gas
The channel of room；
Optical filter filters ultraviolet light of the channel exit in addition to 254nm；
Ultraviolet light of the photoelectric detector detection after optical filter filtering, and export to control/signal processing mould
Block；
The ultraviolet light and the Photoelectric Detection module that the control/signal processing module is generated according to the ultraviolet source pass
The content of defeated ultraviolet light calculates the ozone content in the measurement gas chamber, and is converted into what is be calculated to ozone content
Electric signal transmission is to the communication module.
In conjunction with second aspect, in one implementation, the ozone content in the monitoring device monitoring high-tension switch cabinet,
And corresponding electric signal is converted by the ozone content, the electric signal is exported to communication module, further includes:
Pressure sensor acquires the pressure signal in the measurement gas chamber, and is transmitted to the control/signal processing module；
Temperature sensor acquires the temperature signal in the measurement gas chamber, and is transmitted to the control/signal processing module；
The temperature signal received and pressure signal are transmitted to the communication module by the control/signal processing module.
In conjunction with second aspect, in one implementation, the electric signal received is sent to service by the communication module
Device, further includes:
Server determines that the ozone content in the high-tension switch cabinet is more than default according to the average value of the ozone content
Threshold value or ozone content growth trend are abnormal, issue ozone concentration abnormity early warning information.
A kind of high-tension switch cabinet partial discharge monitoring early warning system and method disclosed in the embodiment of the present application, the system
System include: communication network connection ozone monitoring sensor and server, wherein the ozone monitoring sensor be it is multiple, it is more
A ozone monitoring sensor is separately positioned on different location in high-tension switch cabinet；The ozone monitoring sensor includes: monitoring dress
It sets and communication module；The monitoring device is used to monitor the ozone content in high-tension switch cabinet, and the ozone content is converted
For corresponding electric signal, the electric signal is exported to the communication module, the communication module is used for the telecommunications that will be received
Number it is sent to the server；At the electric signal that the server is used to send the multiple ozone monitoring sensor
Reason obtains the average value of the ozone content of each oxygen monitoring sensor monitoring, according to the realization of the average value of the ozone content
High-tension switch cabinet partial discharge monitoring and early warning.Using system above-mentioned, it can be achieved that comprehensive monitoring high-tension switch cabinet
The middle ozone generated by shelf depreciation improves monitoring accuracy, further, ozone monitoring sensor is realized in the system
It is interacted with remote server, improves intelligent level height, realize the long-range monitoring and warning of high-tension switch cabinet shelf depreciation situation.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is that a kind of structure of high-tension switch cabinet partial discharge monitoring early warning system provided by the embodiments of the present application is shown
It is intended to；
Fig. 2 is ozone monitoring sensor distribution schematic diagram in the application one embodiment；
Fig. 3 is the structure chart of monitoring device in the application one embodiment；
Fig. 4 is a kind of applied field of high-tension switch cabinet partial discharge monitoring early warning system provided by the embodiments of the present application
Jing Tu；
Fig. 5 is that a kind of process of high-tension switch cabinet partial discharge monitoring method for early warning provided by the embodiments of the present application is shown
It is intended to.
Wherein, 301- measures gas chamber；3011- air inlet；The gas outlet 3012-；3013- air pump；302- ultraviolet source；303-
First light transmission quartz glass plate；304- the second light transmission quartz glass plate；305- optical filter；306- photoelectric detector；307- control/
Signal processing module；308- pressure sensor；309- temperature sensor.
Specific embodiment
In order to make the above objects, features, and advantages of the present application more apparent, with reference to the accompanying drawing and it is specific real
Applying mode, the present application will be further described in detail.
A kind of high-tension switch cabinet partial discharge monitoring early warning system and method disclosed in the embodiment of the present application, to solve
When in the prior art, using ultrasonic wave or electromagnetic wave monitoring high-tension switch cabinet shelf depreciation, to positions different in high-tension switch cabinet
It sets or the monitoring sensitivity of different types of high-tension switch cabinet shelf depreciation is different, and then lead to high-tension switch cabinet shelf depreciation
Monitor the problem of early warning inaccuracy on-line.
Studies have shown that air or oxygen is in discharging gap, oxygen molecule by electronics excitation and obtain energy, and send out mutually
Raw elastic collision, aggregates into ozone molecule, and the initial stage of shelf depreciation can generate a large amount of ozone in high-tension switch cabinet, therefore,
The application judges whether shelf depreciation has occurred in high-tension switch cabinet by the content of monitoring ozone.
In a first aspect, the embodiment of the present application discloses a kind of high-tension switch cabinet partial discharge monitoring early warning system, referring to
Fig. 1, Fig. 1 show a kind of structural block diagram of high-tension switch cabinet partial discharge monitoring early warning system based on ozone monitoring,
Include: communication network connection ozone monitoring sensor and server, wherein the ozone monitoring sensor be it is multiple, it is multiple
Ozone monitoring sensor is separately positioned on different location in high-tension switch cabinet.
Wherein, since the density of the mixed gas in high-tension switch cabinet is greater than oxygen, the ozone monitoring sensor
The position of distribution lower position in high-tension switch cabinet, multiple sensors, which are arranged, in the different location in high-tension switch cabinet to protect
Monitoring accuracy is demonstrate,proved, therefore, is shown as an example, the embodiment of the present application discloses ozone monitoring sensor distribution in a kind of high-tension switch cabinet
Be intended to, referring to fig. 2, in Fig. 2, a sensor is respectively set in the surrounding side of high-tension switch cabinet, marked as 1., 2., 3. and
4. the ozone content in monitoring high-tension switch cabinet that so can be more comprehensive, and then more accurately realize high-tension switch cabinet office
Portion's On-line Discharge monitoring and warning.
The ozone monitoring sensor includes: monitoring device and communication module；
The monitoring device is used to monitor the ozone content in high-tension switch cabinet, and converts the ozone content to accordingly
Electric signal, the electric signal is exported to the communication module, wherein the electric signal be the electricity comprising the ozone content
Signal；
Wherein, the monitoring principle of monitoring device is that have stronger absorptivity under the light source at 254nm using ozone, is passed through
Light source and the difference by the ultraviolet light after Ozone Absorption are compared, the amount for the ultraviolet light being relatively unabsorbed by ozone is calculated, recycles youth
Primary-Beer law, absorbed amount are proportional to the molecule amount for generating light absorption in light path, high-tension switch cabinet can be calculated
The content of middle ozone finally, converting corresponding electric signal for the ozone content being calculated, and is transmitted to communication module.
The communication module is used to the electric signal received being sent to the server；
The electric signal that the server is used to send the multiple ozone monitoring sensor is handled, and obtains each oxygen prison
The average value for surveying the ozone content of sensor monitoring realizes the high-tension switch cabinet part according to the average value of the ozone content
On-line Discharge monitoring and early warning.
Optionally, the server is also used to the average value according to the ozone content, determines in the high-tension switch cabinet
Ozone content be more than that preset threshold or ozone content growth trend are abnormal, issue ozone concentration abnormity early warning information.
Wherein, the electric signal containing ozone content that the server monitors multiple ozone monitoring sensors is averaged,
And Threshold Analysis is carried out to the average value, if it exceeds preset threshold, then issue warning information, alternatively, server is according to more
Secondary average value carries out trend analysis, same to issue warning information if ozone content growth trend is too fast.
A kind of high-tension switch cabinet partial discharge monitoring early warning system disclosed in the embodiment of the present application, comprising: communication network
The ozone monitoring sensor and server of network connection, wherein the ozone monitoring sensor is multiple, multiple ozone monitoring sensings
Device is separately positioned on different location in high-tension switch cabinet；The ozone monitoring sensor includes: monitoring device and communication module；Institute
Monitoring device is stated for monitoring the ozone content in high-tension switch cabinet, and converts corresponding electric signal for the ozone content,
The electric signal is exported to the communication module, the communication module is used to the electric signal received being sent to the service
Device；The electric signal that the server is used to send the multiple ozone monitoring sensor is handled, and is obtained each oxygen monitoring and is passed
The average value of the ozone content of sensor monitoring realizes the high-tension switch cabinet shelf depreciation according to the average value of the ozone content
On-line monitoring and early warning.Using system above-mentioned, it can be achieved that because of shelf depreciation generation in comprehensive monitoring high-tension switch cabinet
Ozone realizes that ozone monitoring sensor is interacted with remote server, improves intelligent level height, realizes that high-tension switch cabinet is locally put
The long-range monitoring and warning of electric situation.
Optionally, a kind of structure chart of monitoring device is shown referring to Fig. 3, Fig. 3, the monitoring device includes:
Measure gas chamber 301, ultraviolet source 302, the first light transmission quartz glass plate 303, the second light transmission quartz glass plate 304,
Optical filter 305, photoelectric detector 306 and control/signal processing module 307；
Optionally, the measurement gas chamber 301 by not with ozone reaction, and with good mechanical properties inert material form
Closed space.
The measurement gas chamber 301 is provided with air inlet 3011 and gas outlet 3012, is provided with gas at the gas outlet 3012
Pump 3013, the air pump 3013 connects the control/signal processing module 307；
Wherein, the ozone and air generated in high-tension switch cabinet by shelf depreciation forms mixed gas, and mixed gas is from institute
It states air inlet 3011 and enters measurement gas chamber 301, it can will be in the measurement gas chamber 301 using the air pump 3013 at gas outlet 3012
Gas discharge, realize repeatedly monitoring different periods ozone content.
In addition, the air pump 3013 controls 301 internal pressure of measurement gas chamber by control/signal processing module 307
And gas flow.
The ultraviolet source 302, the first light transmission quartz glass plate 303 and the second light transmission quartz glass plate 304, optical filter
305 and the center of photoelectric detector 306 be located on the same line；
The setting of ultraviolet source 302 is on the outside of the measurement gas chamber 301, the first light transmission quartz glass plate described in face
303, the ultraviolet source 302 is used to provide ultraviolet light for the measurement gas chamber 301；
Wherein, the waveband selection of the ultraviolet source 302 concentrates on short-wave band, can choose LED according to actual demand
Or halide ultraviolet source 302.
The first light transmission quartz glass plate 303 and the second light transmission quartz glass plate 304 are separately positioned on the measurement gas
The opposed both sides in room 301；The first light transmission quartz glass plate 303 and the second light transmission quartz glass plate 304 are for being described
Ultraviolet light provides the channel of the disengaging measurement gas chamber 301；
Wherein, the first light transmission quartz glass plate 303 and the second light transmission quartz glass plate 304 are arranged in the measurement gas
On the frame of room 301.
The optical filter 305 is arranged between the second light transmission quartz glass plate 304 and the photoelectric detector 306,
The optical filter 305 is for filtering ultraviolet light of the channel exit in addition to 254nm；
Wherein, the optical filter 305 only passes through for the luminous energy that wavelength is 254nm.
The photoelectric detector 306 connects the control/signal processing module 307, and the photoelectric detector 306 is for examining
The ultraviolet light after the optical filter 305 filtering is surveyed, and is exported to the control/signal processing module 307；
The radiation of the received 254nm of the photoelectric detector 306 is more than 99.5%, and the measurement gas chamber 301 is arranged in
Outside.
Control/the signal processing module 307 connects the ultraviolet source 302, the control/signal processing module 307
For the ultraviolet light according to the ultraviolet source 302 and the Photoelectric Detection module transfer, calculate in the measurement gas chamber 301
Ozone content, and electric signal transmission is converted into the communication module to ozone content by what is be calculated.
Optionally, in Fig. 3, the monitoring device further include: pressure sensor 308 and temperature sensor 309；
The bottom of the measurement gas chamber 301, the pressure is arranged in the pressure sensor 308 and temperature sensor 309
Sensor 308 and temperature sensor 309 connect the control/signal processing module 307；The pressure sensor 308 is for adopting
Collect the pressure signal in the measurement gas chamber 301, and is transmitted to the control/signal processing module 307；The temperature sensor
309 for acquiring the temperature signal in the measurement gas chamber 301, and is transmitted to the control/signal processing module 307；
Control/the signal processing module 307 is used to for the temperature signal received and pressure signal being transmitted to described logical
Interrogate module.
Wherein, the effect of temperature signal and pressure signal in this application is to keep ozone monitoring precision higher.According to youth primary-
Beer law, air pressure and temperature are an important factor for influencing measurement accuracy and result, so setting pressure sensor, temperature pass
Sensor real-time monitoring measures the pressure and temperature inside gas chamber 301, and feeds back to control/signal processing module 307.
The structure and ozone monitoring process of monitoring device are disclosed in detail in the present embodiment, it can be quasi- using above-mentioned monitoring device
True monitoring enters the ozone content in measurement gas chamber 301, convenient and efficient, can also remotely monitor.
Optionally, the high-tension switch cabinet partial discharge monitoring early warning system further include: mobile terminal；
The mobile terminal be used to receive the high-tension switch cabinet partial discharge monitoring that the server is sent and
The information of early warning and guides maintenance work personnel to be repaired according to the information to high-tension switch cabinet.
As an example, a kind of answering for high-tension switch cabinet partial discharge monitoring early warning system is also disclosed in the embodiment of the present application
With scene figure, as shown in figure 4, after the ozone monitoring sensor for being distributed in different inside switch cabinets collects ozone signal, via
Transfer router is passed to background server；Background server establishes database after handling collected ozone signal,
If it is determined that partial discharges fault has occurred inside background server high-tension switch cabinet, then issue warning signal, the early warning letter
Number will be sent to fortune inspection personnel mobile terminal, fortune inspection personnel corresponding high-tension switch cabinet is repaired according to pre-warning signal.
Second aspect, the embodiment of the present application discloses a kind of high-tension switch cabinet partial discharge monitoring method for early warning, described
High-tension switch cabinet partial discharge monitoring method for early warning is applied to the described in any item high-tension switch cabinets of first aspect and locally puts
Electricity on-line monitoring early warning system, referring to Fig. 5, the high-tension switch cabinet partial discharge monitoring method for early warning includes:
Step 501, the ozone content in monitoring device monitoring high-tension switch cabinet, and convert the ozone content to accordingly
Electric signal, the electric signal is exported to communication module, wherein the electric signal be the telecommunications comprising the ozone content
Number；
Step 502, the electric signal received is sent to server by the communication module；
Step 503, the electric signal that the server sends the multiple ozone monitoring sensor is handled, and is obtained each
Oxygen monitors the average value of the ozone content of sensor monitoring, realizes the high-tension switch cabinet according to the average value of the ozone content
Partial discharge monitoring and early warning.
Optionally, the ozone content in the monitoring device monitoring high-tension switch cabinet, and convert the ozone content to
Corresponding electric signal exports the electric signal to communication module, comprising:
Ultraviolet source provides ultraviolet light for measurement gas chamber；
First light transmission quartz glass plate and the second light transmission quartz glass plate provide for the ultraviolet light passes in and out the measurement gas
The channel of room；
Optical filter filters ultraviolet light of the channel exit in addition to 254nm；
Ultraviolet light of the photoelectric detector detection after optical filter filtering, and export to control/signal processing mould
Block；
The ultraviolet light and the Photoelectric Detection module that the control/signal processing module is generated according to the ultraviolet source pass
The content of defeated ultraviolet light calculates the ozone content in the measurement gas chamber, and is converted into what is be calculated to ozone content
Electric signal transmission is to the communication module.
Optionally, the ozone content in the monitoring device monitoring high-tension switch cabinet, and convert the ozone content to
Corresponding electric signal exports the electric signal to communication module, further includes:
Pressure sensor acquires the pressure signal in the measurement gas chamber, and is transmitted to the control/signal processing module；
Temperature sensor acquires the temperature signal in the measurement gas chamber, and is transmitted to the control/signal processing module；
The temperature signal received and pressure signal are transmitted to the communication module by the control/signal processing module.
Optionally, the electric signal received is sent to server by the communication module, further includes:
Server determines that the ozone content in the high-tension switch cabinet is more than default according to the average value of the ozone content
Threshold value or ozone content growth trend are abnormal, issue ozone concentration abnormity early warning information.
Same and similar part may refer to each other between each embodiment in this specification.Implement especially for method
For example, since it is substantially similar to system embodiment, so being described relatively simple, related place is referring in system embodiment
Explanation.
Combine detailed description and exemplary example that the application is described in detail above, but these explanations are simultaneously
It should not be understood as the limitation to the application.It will be appreciated by those skilled in the art that without departing from the application spirit and scope,
A variety of equivalent substitution, modification or improvements can be carried out to technical scheme and embodiments thereof, these each fall within the application
In the range of.The protection scope of the application is determined by the appended claims.
Claims (10)
1. a kind of high-tension switch cabinet partial discharge monitoring early warning system characterized by comprising communication network connects smelly
Oxygen monitors sensor and server, wherein the ozone monitoring sensor be it is multiple, multiple ozone monitoring sensors are respectively set
The different location in high-tension switch cabinet；
The ozone monitoring sensor includes: monitoring device and communication module；
The monitoring device is used to monitor the ozone content in high-tension switch cabinet, and converts corresponding electricity for the ozone content
Signal exports the electric signal to the communication module, wherein the electric signal is the telecommunications comprising the ozone content
Number；
The communication module is used to the electric signal received being sent to the server；
The electric signal that the server is used to send the multiple ozone monitoring sensor is handled, and is obtained each oxygen monitoring and is passed
The average value of the ozone content of sensor monitoring realizes the high-tension switch cabinet shelf depreciation according to the average value of the ozone content
On-line monitoring and early warning.
2. high-tension switch cabinet partial discharge monitoring early warning system according to claim 1, which is characterized in that the prison
Surveying device includes:
Measure gas chamber, ultraviolet source, the first light transmission quartz glass plate, the second light transmission quartz glass plate, optical filter, photoelectric detector
With control/signal processing module；
The measurement gas chamber is provided with air inlet and air outlet, is provided with air pump at the gas outlet, described in the air pump connection
Control/signal processing module；
The ultraviolet source, the first light transmission quartz glass plate and the second light transmission quartz glass plate, optical filter and photoelectric detector
Center is located on the same line；
The ultraviolet source is arranged on the outside of the measurement gas chamber, the first light transmission quartz glass plate described in face, the ultraviolet light
Source is used to provide ultraviolet light for the measurement gas chamber；
It is opposed that the first light transmission quartz glass plate and the second light transmission quartz glass plate are separately positioned on the measurement gas chamber
Both sides；The first light transmission quartz glass plate and the second light transmission quartz glass plate are used to provide disengaging the survey for the ultraviolet light
Measure the channel of gas chamber；
The optical filter is arranged between the second light transmission quartz glass plate and the photoelectric detector, and the optical filter is used for
Filter ultraviolet light of the channel exit in addition to 254nm；
The photoelectric detector connects the control/signal processing module, and the photoelectric detector passes through the filter for detecting
Ultraviolet light after mating plate filtering, and export to the control/signal processing module；
The control/signal processing module connects the ultraviolet source, and the control/signal processing module is used for according to the purple
The ultraviolet light of outer light source and the Photoelectric Detection module transfer calculates the ozone content in the measurement gas chamber, and will calculate
To be converted into electric signal transmission to the communication module to ozone content.
3. high-tension switch cabinet partial discharge monitoring early warning system according to claim 2, which is characterized in that the prison
Survey device further include: pressure sensor and temperature sensor；
The bottom of the measurement gas chamber is arranged in the pressure sensor and temperature sensor, and the pressure sensor and temperature pass
Sensor connects the control/signal processing module；The pressure sensor is used to acquire the pressure signal in the measurement gas chamber,
And it is transmitted to the control/signal processing module；The temperature sensor is used to acquire the temperature signal in the measurement gas chamber,
And it is transmitted to the control/signal processing module；
Control/the signal processing module is used to the temperature signal received and pressure signal being transmitted to the communication module.
4. high-tension switch cabinet partial discharge monitoring early warning system according to claim 1, which is characterized in that the clothes
Business device is also used to:
According to the average value of the ozone content, determine that the ozone content in the high-tension switch cabinet is more than preset threshold or smelly
Oxygen content growth trend is abnormal, issues ozone concentration abnormity early warning information.
5. high-tension switch cabinet partial discharge monitoring early warning system according to claim 1, which is characterized in that the height
Compress switch cabinet partial discharge monitoring early warning system further include: mobile terminal；
The mobile terminal is used to receive the high-tension switch cabinet partial discharge monitoring and early warning that the server is sent
Information, and guide maintenance work personnel to be repaired according to the information to high-tension switch cabinet.
6. high-tension switch cabinet partial discharge monitoring early warning system according to claim 2, which is characterized in that
The measurement gas chamber with the inert materials of good mechanical properties by with ozone reaction, and not being made.
7. a kind of high-tension switch cabinet partial discharge monitoring method for early warning, which is characterized in that the high-tension switch cabinet is locally put
It is pre- that electricity on-line monitoring method for early warning is applied to high-tension switch cabinet partial discharge monitoring as claimed in any one of claims 1 to 6
Alert system, the high-tension switch cabinet partial discharge monitoring method for early warning include:
Monitoring device monitors the ozone content in high-tension switch cabinet, and converts corresponding electric signal for the ozone content, will
The electric signal is exported to communication module, wherein the electric signal is the electric signal comprising the ozone content；
The electric signal received is sent to server by the communication module；
The electric signal that the server sends the multiple ozone monitoring sensor is handled, and obtains each oxygen monitoring sensor
The average value of the ozone content of monitoring realizes that the high-tension switch cabinet shelf depreciation is online according to the average value of the ozone content
Monitoring and early warning.
8. the high-tension switch cabinet partial discharge monitoring method for early warning stated according to claim 7, which is characterized in that the monitoring
Ozone content in device monitoring high-tension switch cabinet, and corresponding electric signal is converted by the ozone content, by the telecommunications
Number output is to communication module, comprising:
Ultraviolet source provides ultraviolet light for measurement gas chamber；
First light transmission quartz glass plate and the second light transmission quartz glass plate provide for the ultraviolet light passes in and out the measurement gas chamber
Channel；
Optical filter filters ultraviolet light of the channel exit in addition to 254nm；
Ultraviolet light of the photoelectric detector detection after optical filter filtering, and export to control/signal processing module；
Ultraviolet light that the control/signal processing module is generated according to the ultraviolet source and the Photoelectric Detection module transfer
The content of ultraviolet light calculates the ozone content in the measurement gas chamber, and is converted into telecommunications to ozone content for what is be calculated
Number it is transmitted to the communication module.
9. the high-tension switch cabinet partial discharge monitoring method for early warning stated according to claim 8, which is characterized in that the monitoring
Ozone content in device monitoring high-tension switch cabinet, and corresponding electric signal is converted by the ozone content, by the telecommunications
Number output is to communication module, further includes:
Pressure sensor acquires the pressure signal in the measurement gas chamber, and is transmitted to the control/signal processing module；Temperature
Sensor acquires the temperature signal in the measurement gas chamber, and is transmitted to the control/signal processing module；
The temperature signal received and pressure signal are transmitted to the communication module by the control/signal processing module.
10. high-tension switch cabinet partial discharge monitoring method for early warning according to claim 7, which is characterized in that described
The electric signal received is sent to server by communication module, further includes:
Server determines that the ozone content in the high-tension switch cabinet is more than preset threshold according to the average value of the ozone content
Or ozone content growth trend is abnormal, issues ozone concentration abnormity early warning information.
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| CN110389287A (en) * | 2019-07-26 | 2019-10-29 | 云南电力试验研究院(集团)有限公司 | A kind of method for early warning and system of the electric discharge of high-tension switch cabinet interior insulation |
| CN110470959A (en) * | 2019-08-27 | 2019-11-19 | 东北电力大学 | A kind of switch cabinet comprehensive on-line monitoring analysis platform |
| CN113112776A (en) * | 2020-01-13 | 2021-07-13 | 郑州泰宏电气有限公司 | Safety protection system for power distribution network |
| CN113253076A (en) * | 2021-06-25 | 2021-08-13 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
| CN113791176A (en) * | 2021-08-12 | 2021-12-14 | 深圳供电局有限公司 | Method and system for monitoring gas in switch cabinet |
| CN115718175A (en) * | 2022-11-28 | 2023-02-28 | 贵州电网有限责任公司 | Self-powered ozone monitoring sensor of power distribution cabinet and signal processing method |
| WO2024021375A1 (en) * | 2022-07-26 | 2024-02-01 | 云南电网有限责任公司临沧供电局 | Switch cabinet aging online monitoring method and system |
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