CN109668595A - Switch cabinet temperature partial discharge measures alarm system - Google Patents
Switch cabinet temperature partial discharge measures alarm system Download PDFInfo
- Publication number
- CN109668595A CN109668595A CN201910042810.6A CN201910042810A CN109668595A CN 109668595 A CN109668595 A CN 109668595A CN 201910042810 A CN201910042810 A CN 201910042810A CN 109668595 A CN109668595 A CN 109668595A
- Authority
- CN
- China
- Prior art keywords
- temperature
- module
- partial discharge
- switch cabinet
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to electrical equipment technical field, i.e. switch cabinet temperature partial discharge measures alarm system.It includes: temperature detecting module, Partial Discharge Detection module, processing and communication module.Temperature detecting module and Partial Discharge Detection module are mounted on power switch cabinet domestic demand position to be mounted, main control module is coupled with temperature detecting module, Partial Discharge Detection module and communication module respectively, and communication module is used to couple by mobile data network with terminal device.By temperature detecting module and Partial Discharge Detection module, just power switch in-cabinet temperature and partial discharge phenomenon can effectively be detected.While communication module efficiently realizes the remote alarms that temperature and shelf depreciation are leaked electricity in a manner of short message or multimedia message, the manufacture and maintenance cost of switch cabinet temperature partial discharge measurement alarm system are effectively reduced.
Description
Technical field
The present invention relates to electrical equipment technical fields, measure alarm system in particular to a kind of switch cabinet temperature partial discharge
System.
Background technique
With the development of science and technology and the improvement of people's living standards, the power load of people is growing day by day, therefore electricity
Power switchgear has obtained applying extensively and on a large scale.
In the power load situation growing day by day of people, power switch cabinet also and is possible to be chronically at the fortune of high load capacity
Row state.Chopper switch inside power switch cabinet is equal due to aoxidizing, contacting insecure and power switch cabinet heavy-duty service
It can cause to overheat.Due to its totally enclosed structure, the excess temperature for often leading to chopper switch is difficult to by perambulator power switch cabinet
Member's discovery.Thus after chopper switch long-time excess temperature, and it is be easy to cause the contact site burning fault of chopper switch, cause to set
Standby large-scale power outage.Further, since power switch cabinet usually works in high voltage, therefore the SI semi-insulation of power switch cabinet
Element is easy to produce shelf depreciation.If but insulation component aging, the shelf depreciation generated easily cause interruption of service, cause to set
The standby safety damaged and threaten personnel.
Therefore, how to the operating temperature for effectively knowing chopper switch, to prevent power switch cabinet from damaging because of excess temperature
Bad while, additionally it is possible to which carrying out efficient detection to shelf depreciation is current industry a great problem.
Summary of the invention
In view of this, the purpose of the present invention is to provide the switch cabinet temperature partial discharge measurement alarm systems that one kind effectively detects
System, to improve above-mentioned defect.
The embodiment of the present invention is achieved in that
Switch cabinet temperature partial discharge measure alarm system, characterized by comprising: temperature detecting module, Partial Discharge Detection module,
Main control module, communication module and power module；The temperature detecting module and Partial Discharge Detection module are installed in electric power and open
It closes in cabinet, the temperature detecting module is located at the chopper switch in power switch cabinet；The main control module respectively with it is described
Temperature detecting module, Partial Discharge Detection module and communication module coupling；The communication module is for passing through mobile data
Network is coupled with terminal device in switchgear.
The temperature detecting module, for persistently detecting the knife for obtaining the chopper switch inside the power switch cabinet
Lock temperature information, and the disconnecting link temperature information is persistently sent to main control module.
The Partial Discharge Detection module, for shelf depreciation information in power switch cabinet described in continuous collecting, and by office
Portion's discharge information is continuous to be sent to the main control module.
The main control module, disconnecting link temperature value and disconnecting link temperature threshold for will be obtained according to the disconnecting link temperature information
Compare, when the disconnecting link temperature value is greater than the disconnecting link temperature threshold, generates temperature alarming and instruct to the communication module；Also
For will be compared according to the shelf depreciation value of the shelf depreciation acquisition of information and local discharge threshold, when the shelf depreciation value
When greater than the shelf depreciation threshold value, generates leakage-current alarm and instruct to the communication module.
The communication module generates temperature alarming information for instructing according to temperature alarming, is referred to according to the leakage-current alarm
It enables and generates leakage-current alarm information, and temperature alarming information or leakage-current alarm information are sent to by way of short message or multimedia message
Terminal device.
The power module, the power module with external power supply for coupling, the power module and the master control mould
Block coupling.
In above scheme:
The Partial Discharge Detection module includes: at least two partial discharge detecting sensors, each Partial Discharge Detection sensing
Device is installed in power switch cabinet, and each partial discharge detecting sensor is located at position and remaining part in power switch cabinet
Discharge examination sensor is different, and each partial discharge detecting sensor is coupled with the main control module.
The temperature detecting module includes: at least two temperature detection sensors, and each temperature detection sensor is equal
It is mounted in the power switch cabinet, each temperature detection sensor is located at position inside the power switch cabinet and its
The remaining temperature detection sensor is different, and each temperature detection sensor is respectively positioned in the power switch cabinet
The chopper switch, each temperature detection sensor are coupled with the main control module.
Each temperature detection sensor passes through 433MHz wireless network and couples with the main control module.
Each temperature detection sensor is passive wireless temperature sensor.
The communication module is coupled by RS-232 communication bus with the main control module.
The main control module includes: signal receiving unit and processing unit, and the signal receiving unit passes through wireless network
It is coupled with the temperature detecting module, the processing unit receives with the Partial Discharge Detection module, the signal single respectively
The first and described communication module coupling.
The beneficial effect of the embodiment of the present invention is:
Lasting detection acquisition disconnecting link temperature information is sent to master control by the temperature detecting module by being arranged close to chopper switch
Module, and will persistently be detected further through the Partial Discharge Detection module being arranged close in power switch cabinet and obtain shelf depreciation letter
Breath is sent to main control module.Main control module then can be by the disconnecting link temperature value obtained according to disconnecting link temperature information and disconnecting link temperature threshold
Value compares, and will be compared according to the shelf depreciation value of shelf depreciation acquisition of information and local discharge threshold.When disconnecting link temperature value is big
When the disconnecting link temperature threshold, main control module generates temperature alarming and instructs to communication module；And when local place value is greater than office
When portion's discharge threshold, then generates leakage-current alarm and instruct to communication module.Communication module can instruct according to temperature alarming and generate temperature
Warning message is spent, or is instructed according to leakage-current alarm and generates leakage-current alarm information, and by temperature alarming information or leakage-current alarm information
Terminal device is sent to by way of short message or multimedia message.Therefore, power switch is arranged close to by temperature detecting module
Chopper switch inside cabinet and it is arranged close to Partial Discharge Detection module in power switch cabinet, it just can be in power switch cabinet
Temperature and partial discharge phenomenon are effectively detected.Pass through the coupling of mobile data network between communication module and terminal device again
It closes, in a manner of short message or multimedia message while the efficient and convenient remote alarms for realizing temperature and shelf depreciation electric leakage, additionally it is possible to
Effectively reduce the manufacture and maintenance cost of switch cabinet temperature partial discharge measurement alarm system.
Detailed description of the invention
Fig. 1 is use state structural block diagram of the present invention.
Fig. 2 is the structural schematic diagram of chopper switch in the present invention.
Fig. 3 is first structure block diagram of the invention.
Fig. 4 is the second structural block diagram of the invention.
Specific embodiment
Alarm system is measured referring to Fig. 1-4:10- switch cabinet temperature partial discharge；100- power switch cabinet；110- chopper switch；
115- disconnecting link ontology；112- connection sheet；The first bolt of 114-；The second bolt of 113-；111- third bolt；200- switch cabinet temperature
Partial discharge measures alarm system；220- power module；221- filter circuit；222- rectifies reduction voltage circuit；240- Partial Discharge Detection
Module；241- partial discharge detecting sensor；230- temperature detecting module；231- temperature detection sensor；2311- temperature sensing
Unit；2312- signal transmitting unit；210- main control module；211- signal receiving unit；212- processing unit；250- communicates mould
Block；300- terminal device.
In the description of the present invention, it should be noted that the orientation of the instructions such as term "top", "inner", "bottom" or position are closed
System for be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " the
One ", " second " etc. is only used for distinguishing description, is not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection ", " coupling ", " installation " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Referring to Fig. 1, switch cabinet temperature partial discharge measures alarm system 200 and is used for power switch cabinet 100.
Switch cabinet temperature partial discharge measures alarm system 200, comprising: temperature detecting module 230, Partial Discharge Detection module
240, main control module 210, communication module 250 and power module 220；The temperature detecting module 230 and Partial Discharge Detection mould
Block 240 is installed in power switch cabinet 100, and the temperature detecting module 230 is located at the disconnecting link in power switch cabinet 100
Switch 110；The main control module 210 respectively with the temperature detecting module 230, Partial Discharge Detection module 240 and described logical
Believe that module 250 couples；The communication module 250 is used for through terminal device coupling in mobile data network and power switch cabinet 100
It closes.
Power switch cabinet 100 can be high-tension switch cabinet or low-tension switch cabinet, such as: GG-IA (F) type.Power switch cabinet
100 shell is equipped with button or display screen, so as to the control of operator.The inside of power switch cabinet 100 is then provided with electricity
Gas element.By the electrical component inside power switch cabinet 100, power switch cabinet 100 can obtain the electric energy of power grid, and will obtain
The electric energy got is allocated, so as to each electric energy used per family needed for capable of obtaining itself.In addition, in power switch cabinet 100
The electrical component in portion also has protective effect.It, can be to user when finding single-line to ground fault, double phase short circuit or three-phase shortcircuit
Effective short-circuit protection is formed, prevents short circuit from damaging to user's equipment used in everyday.
As depicted in figs. 1 and 2, power switch cabinet 100 may include: chopper switch 110, in the present embodiment, chopper switch
110 can be the switch of 100 inside point of incoming cables of power switch cabinet or outlet.Specifically, chopper switch 110 includes: disconnecting link sheet
Body 115, connection sheet 112, the first bolt 114, the second bolt 113 and third bolt 111.Disconnecting link ontology 115 has columned
Pedestal, and disconnecting link ontology 115 is laminated structure on the top of pedestal.Connection sheet 112 can be the laminated structure of rugosity.Connection
One end of piece 112 can be fitted closely with the laminated structure of disconnecting link ontology 115, and pass through the first bolt 114 and the second bolt 113
Realization is detachably connected.In addition, the other end of connection sheet 112 can pass through third bolt 111 and inlet wire cable or outlet cable
Realization is detachably connected.In the present embodiment, when power switch cabinet 100 is in higher load condition operation, connection sheet 112 and inlet wire
The joint of joint and connection sheet 112 and disconnecting link ontology 115 that cable or outlet cable are realized is easy to produce high temperature.
Therefore the engagement that switch cabinet temperature partial discharge measurement alarm system 200 can realize connection sheet 112 and inlet wire cable or outlet cable
The temperature and connection sheet 112 at place and the temperature of the joint of disconnecting link ontology 115 are detected.
Switch cabinet temperature partial discharge measures alarm system 200, and there is Partial Discharge Detection, thermometric, signal processing and signal to send
IDE.Switch cabinet temperature partial discharge measurement alarm system 200 is mounted on the inner wall inside power switch cabinet 100,
In order to which switch cabinet temperature partial discharge measurement alarm system 200 detects the shelf depreciation in power switch cabinet 100.In addition,
It is close chopper switch 110 that switch cabinet temperature partial discharge, which measures the position that alarm system 200 is installed, therefore switch cabinet temperature partial discharge measures
The temperature and connection sheet for the joint that alarm system 200 can realize connection sheet 112 and inlet wire cable or outlet cable
112 are detected with the temperature of the joint of disconnecting link ontology 115.Switch cabinet temperature partial discharge measurement alarm system 200 can pass through
The processing operational capability of itself, the disconnecting link temperature value and disconnecting link temperature threshold ratio that will be obtained according to the disconnecting link temperature information detected
Compared with, and will be compared according to the shelf depreciation value of the shelf depreciation acquisition of information detected and local discharge threshold.When disconnecting link temperature
When value is greater than disconnecting link temperature threshold, switch cabinet temperature partial discharge measurement alarm system 200 can then generate temperature alarming information, and lead to
The transmission mode for crossing short message or multimedia message is sent to terminal device 300, in order to which patrol officer can know power switch cabinet 100 i.e.
By excess temperature.When local place value is greater than shelf depreciation threshold value, switch cabinet temperature partial discharge measurement alarm system 200 can also be generated
Leakage-current alarm information, and it is sent to terminal device 300 also by the transmission mode of short message or multimedia message, in order to which patrol officer can
Know the electric leakage element electric leakage inside power switch cabinet 100.
Terminal device 300 can be PC (personal computer, PC), tablet computer, smart phone, a
Personal digital assistant (personal digital assistant, PDA) etc..In the present embodiment, terminal device 300 can be inspection
The mobile phone of personnel.Terminal device 300 can measure 200 coupling of alarm system by mobile data network and switch cabinet temperature partial discharge
It closes, therefore terminal device 300 can receive terminal switch cabinet temperature partial discharge measurement alarm system 200 by way of short message or multimedia message
The temperature alarming information or leakage-current alarm information of transmission.Terminal device 300 by itself dissection process and display capabilities,
It is shown so as to which temperature alarming information and/or leakage-current alarm information will be received, so that patrol officer passes through viewing
The display screen of terminal device 300 can clearly know that power switch cabinet 100 leaks electricity excess temperature and/or generating device.
Refering to Fig. 3, it includes: power module 220, Partial Discharge Detection mould that switch cabinet temperature partial discharge, which measures alarm system 200,
Block 240, temperature detecting module 230, main control module 210 and communication module 250.
Power module 220 and the coupling with external power supply for obtaining electric energy, the electric energy that power module 220 will acquire
In output to the main control module of coupling after rectification decompression, to guarantee the normal work of main control module 210.
Partial Discharge Detection module 240 is used to persistently detect and obtain in power switch cabinet by local discharge sensor
Shelf depreciation information.Partial Discharge Detection module 240 is coupled by data/address bus with main control module 210, Partial Discharge Detection mould
Block 240 can will acquire shelf depreciation information and persistently be sent to main control module 210.
Temperature detecting module 230 is used to persistently detect by temperature sensor and obtain disconnecting link in corresponding power switch cabinet and open
The disconnecting link temperature information of pass.Temperature detecting module 230 is coupled by wireless network with main control module 210, just can will acquire
Disconnecting link temperature information is persistently sent to the main control module 210 of coupling.
Main control module 210 is used for the disconnecting link temperature information according to acquisition, obtains disconnecting link temperature corresponding to disconnecting link temperature information
Angle value, and disconnecting link temperature value and disconnecting link temperature threshold are compared.When disconnecting link temperature value is greater than disconnecting link temperature threshold, main control module
210, which can generate temperature alarming according to pre-set programs, instructs to coupled communication module 250.Main control module 210 is also used to obtain office
Shelf depreciation value corresponding to portion's discharge information, and shelf depreciation value and local discharge threshold are compared.Shelf depreciation value is greater than
When shelf depreciation threshold value, main control module 210 also can generate leakage-current alarm according to pre-set programs and instruct to coupled communication module
250。
Communication module 250 is used to be instructed according to the temperature alarming of acquisition, and generates temperature according to the control program of itself
Warning message, or for instructing according to the leakage-current alarm of acquisition, leakage-current alarm information is also generated according to the control program of itself.
Communication module 250 can be coupled by mobile communication protocol with terminal device, thus by the temperature alarming information of generation and/or leakage
Electric alarm information is sent to terminal device in a manner of short message or multimedia message by mobile data network.
Refering to Fig. 4, power module 220 can include: step-down transformer T1, filter circuit 221 and rectification reduction voltage circuit 222.
Wherein, the first side winding of step-down transformer T1 and external power supply coupling, the secondary side winding of step-down transformer T1 then with filtering
Circuit 221 couples, and rectifies reduction voltage circuit 222 and then couple with filter circuit 221.
The electric signal for the external power supply that step-down transformer T1 is used to will acquire exports after being depressured.Specifically, decompression becomes
Depressor T1 can be 240V(band shielding line with R type isolating transformer, the first side winding of step-down transformer T1), secondary side winding can
Think 16V/30W(band centre tap) or 6V/12W(without centre tap).Step-down transformer T1 passes through first side winding and two
The electromagnetic coupling relationship of secondary side winding, it is defeated by the coupling of secondary side winding and filter circuit after the electric signal capable of being depressured
Out to filter circuit 221.
Filter circuit 221 is by the coupling with step-down transformer T1, in the electric signal that step-down transformer T1 is inputted
Interference signal filters out, to prevent interference signal in external power supply to the normal work of switchgear temperature partial discharge measurement alarm system 200
It has an impact.In the present embodiment, electromagnetic interface filter (EMI, Electromagnetic is can be used in filter circuit 221
Interference), wherein the model of electromagnetic interface filter can be with are as follows: NFI-2C05-VF type, NFI-2C10-VF type or NFI-
2C20-VF type, power can be greater than 50W.Filter circuit 221 eliminates the external power supply of input by way of filtering and shielding
Existing electromagnetic interference.Filter circuit 221 passes through the current-limiting reactor and shunt capacitor of itself, can be by the height in electric signal
Frequency interference signal filters out.Filter circuit 221 can be exported filtered signal by the coupling with rectification reduction voltage circuit 222
To rectification reduction voltage circuit 222.
Rectification reduction voltage circuit 222 is for rectifying the electric signal that filter circuit 221 exports.Specifically, rectification decompression
Circuit 222 may include: bridge rectifier and three-terminal regulator chip.Bridge rectifier and three-terminal regulator chip coupling,
In, three-terminal regulator chip can be LM8715, LM7915 or LM7805.Rectify the rectifier bridge energy that reduction voltage circuit 222 passes through itself
It is enough that the electric signal for obtaining exchange by output end is rectified into the electric signal of direct current, and be depressured again by three-terminal regulator chip.
Reduction voltage circuit 222 is rectified by the coupling with main control module 210, again by the DC signal output after decompression to main control module
210, to guarantee the normal work of main control module 210.
As shown in Figure 2 and Figure 4, Partial Discharge Detection module 240 includes: at least two partial discharge detecting sensors 241.
Each partial discharge detecting sensor 241 is installed in the power switch cabinet, each partial discharge detecting sensor 241
In in power switch cabinet position and remaining partial discharge detecting sensor 241 it is different, so as to each in power switch cabinet
A position can detect its shelf depreciation.In the present embodiment, the quantity of partial discharge detecting sensor 241 can be
Two.As a kind of mode, one of partial discharge detecting sensor 241 can be located at top in power switch cabinet, and another
One partial discharge detecting sensor 241 can then be located at lower section in power switch cabinet.Alternatively, one of office
Portion's discharge examination sensor 241 can be located at left in power switch cabinet, and another partial discharge detecting sensor 241 then may be used
To be located at right in power switch cabinet.Each partial discharge detecting sensor 241 is provided with the detection function of shelf depreciation.Part
Discharge examination sensor 241 can be the IC chip for having signal handling capacity, specifically, Partial Discharge Detection senses
Device 241 can be UltraTEV Series Ultrasonic Partial discharge detector.
Each partial discharge detecting sensor 241 can emit ultrasonic signal, which can be by part
The electric signal of electric discharge interferes and generates decaying.The electrical signal intensity that ultrasonic signal encounters shelf depreciation is different, just can generate
Different degrees of decaying.It is super according to this after ultrasonic signal after each partial discharge detecting sensor 241, which receives, to be returned
The attenuation degree of acoustic signals, each partial discharge detecting sensor 241 just can analyze the power of shelf depreciation.Each office
Portion's discharge examination sensor 241 can correspond to generation electric signal according to the ultrasonic signal returned power is obtained, and return surpasses
The intensity of acoustic signals is bigger, and electrical signal intensity is stronger, conversely, electrical signal intensity is then smaller, which is shelf depreciation
The analog signal of information.Each partial discharge detecting sensor 241 can also lead to itself D/A converting circuit for shelf depreciation
The analog signal of information is converted to digital signal.The output end of each partial discharge detecting sensor 241 passes through local network control
Bus (Controller Area Network, CAN) processed couples with main control module 210, so that each Partial Discharge Detection senses
Device 241 can export the shelf depreciation information of digital signal to main control module 210.It should be noted that each part is put
The detection time interval of electro-detection sensor 241 is 1 second, and each partial discharge detecting sensor 241 believes shelf depreciation
The time interval of breath output to main control module 210 is also 1 second.
Temperature detecting module 230 includes: at least two temperature detection sensors 231.Each temperature detection sensor 231 is
It is mounted on the inner sidewall inside power switch cabinet, and is located at the chopper switch inside power switch cabinet, and each temperature
Detection sensor 231 is located at position and remaining temperature detection sensor 231 difference on power switch cabinet.In the present embodiment,
The quantity of temperature detection sensor 231 can be two.Specifically, one of temperature detection sensor 231 is opened positioned at electric power
The position on cabinet is closed to be close and connect the joint that piece and inlet wire cable or outlet cable are realized, and another temperature is examined
Surveying sensor 231 to be located at the position on power switch cabinet is joint that is close and connecting piece Yu disconnecting link ontology.
Each temperature detection sensor 231 is provided with the ability of thermometric and wireless communication, can be passive for SDF3211 type
Radio temperature sensor.Specifically, each temperature detection sensor 231 includes: that temperature sensing unit 2311 and signal are sent
Unit 2312.Temperature sensing unit 2311 and signal transmitting unit 2312 couple, and signal transmitting unit 2312 then passes through wireless network
Network is coupled with main control module 210.
Temperature sensing unit 2311 all can be contact, temperature sensing unit 2311 with corresponding chopper switch by connecing
Touching.Temperature sensing unit 2311 can then obtain the chopper switch in the disconnecting link of the contact position by itself thermistor
Temperature signal, wherein the disconnecting link temperature signal can be analog signal.Temperature sensing unit 2311 passes through acquisition cable and signal
The coupling of transmission unit 2312 can then export disconnecting link temperature signal to signal transmitting unit 2312.In the present embodiment, temperature
The thermometric time interval of sensing unit 2311 is 1 second, and each temperature sensing unit 2311 exports disconnecting link temperature signal to right
The time interval for the signal transmitting unit 2312 answered also is 1 second.
The disconnecting link temperature signal that signal transmitting unit 2312 is used to will acquire is converted to disconnecting link temperature information, and by wireless
Network is sent to main control module 210.Specifically, signal transmitting unit 2312 all can be DATA-7601 type 433M wireless data
Transmit chip.Signal transmitting unit 2312 gets the disconnecting link temperature signal of the transmission of temperature sensing unit 2311 by acquiring cable
Afterwards, which can be carried out analog-to-digital conversion by the logic circuit of itself by signal transmitting unit 2312.Signal hair
Unit 2312 is sent to be coupled with main control module 210 by 433MHz wireless network, therefore signal transmitting unit 2312 can will be after conversion
Disconnecting link temperature information main control module 210 is sent to by 433MHz wireless network.It should be understood that signal transmitting unit 2312
The time interval for sending disconnecting link temperature information is also 1 second.Pass through the wireless of each signal transmitting unit 2312 and main control module 210
Coupling, avoids many and diverse wiring, reduces the manufacturing cost of switch cabinet temperature partial discharge measurement alarm system 200.
Main control module 210 is for realizing the control action in switch cabinet temperature partial discharge measurement alarm system 200, master control mould
Block 210 includes: signal receiving unit 211 and processing unit 212.
Signal receiving unit 211 is used for through 433MHz wireless network and each temperature detection sensor 231, i.e., with it is each
Signal transmitting unit 2312 in temperature detection sensor 231 couples, therefore signal receiving unit 211 can be wireless by 433MHz
Network receives disconnecting link temperature information transmitted by the signal transmitting unit 2312 in each temperature detection sensor 231.Specifically,
Signal receiving unit 211 can be with are as follows: RCR-433 type IC chip.The ANT pin of signal receiving unit 211, which is equipped with, to be received
Antenna, therefore signal receiving unit 211 can be sensed by its ANT pin with each temperature detection of the acquisition of 1 second interval spans
Disconnecting link temperature information transmitted by signal transmitting unit 2312 in device 231, and each disconnecting link temperature information is decoded.
Signal receiving unit 211 is coupled by DATA pin with processing unit 212, therefore signal receiving unit 211 can be drawn by DATA
Foot reads the decoded each disconnecting link temperature information of signal receiving unit 211 by processing unit 212 with 1 second interval spans.
Processing unit 212 can be the IC chip for having signal logic processing.Above-mentioned IC chip can be with
It is general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc.；It can also be digital signal processor (Digital Signal Processing, DSP), dedicated collection
At circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components.General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
In the present embodiment, processing unit 212 can be the single-chip microcontroller of STM32 series, such as STM32F103 type.Processing is single
The GPIOD.0 interface of member 212 can be coupled with the DATA pin of signal receiving unit 211, to be read with 1 second time interval
The each decoded disconnecting link temperature information of signal receiving unit 211.GPIOD.1 to the GPIOD.4 interface of processing unit 212 can
It is coupled with CAN bus, the shelf depreciation information that Partial Discharge Detection module 240 is sent was obtained with 1 second time interval.Processing
1 second read access time interval set by unit 212 can effectively avoid processing unit 212 due to obtaining disconnecting link temperature information
It is excessive with the data volume of local discharge information, and it is lengthy and jumbled when causing operation.
After processing unit 212 gets disconnecting link temperature information, processing unit 212 can parse disconnecting link temperature information, thus
Obtain disconnecting link temperature value corresponding to disconnecting link temperature information.Processing unit 212 can be previously stored with by itself storage circuit
Disconnecting link temperature threshold.The disconnecting link temperature value that processing unit 212 can will acquire and the disconnecting link temperature threshold of storage pass through itself
Comparison circuit is compared.Processing unit 212 can be judged according to the comparison result of comparison circuit by pre-set control programs
The contact portion of chopper switch whether excess temperature.Specifically, when multiple disconnecting link temperature values are respectively less than or are equal to disconnecting link temperature threshold, place
The comparison circuit of reason unit 212 can export low level, and processing unit 212 can know the knife of power switch cabinet according to low level
The non-excess temperature of two contact portions of lock switch, and then do not generate control instruction.But works as and be greater than knife in any one disconnecting link temperature value
When lock temperature threshold, the comparison circuit of processing unit 212 can export high level, and processing unit 212 can be obtained according to high level
Know one of them or whole equal excess temperatures of two contact portions of the chopper switch of power switch cabinet.Wherein, the peace to guarantee equipment
Entirely, disconnecting link temperature threshold is to burn temperature less than contact portion.When processing unit 212 is judged as excess temperature, processing unit 212 can
Pass through the corresponding temperature alarming instruction of itself control Program Generating.Processing unit 212 passes through USART1 interface and communication unit
Temperature alarming can then be instructed and be sent to communication unit by coupling.
In addition, processing unit 212 can parse shelf depreciation information after processing unit 212 gets shelf depreciation information,
To obtain shelf depreciation value corresponding to shelf depreciation information.Processing unit 212 is stored in advance also by itself storage circuit
There is shelf depreciation threshold value.The shelf depreciation threshold value of shelf depreciation value and storage that processing unit 212 can will acquire passes through itself
Comparison circuit be compared.Processing unit 212 can be sentenced according to the comparison result of comparison circuit by pre-set control programs
Insulation component in disconnected power switch cabinet whether aging or damage and generate electric leakage.Specifically, when multiple shelf depreciation values are small
When shelf depreciation threshold value, the comparison circuit of processing unit 212 can export low level, and processing unit 212 being capable of root
Know that power switch cabinet does not leak electricity according to low level, and then does not generate control instruction.But works as and be greater than office in any one shelf depreciation
When portion's discharge threshold, the comparison circuit of processing unit 212 can export high level, and processing unit 212 can be obtained according to high level
Know and generates electric leakage in power switch cabinet.When processing unit 212 is judged as electric leakage, processing unit 212 can be controlled by itself
The corresponding leakage-current alarm instruction of Program Generating.Processing unit 212 then can also by the coupling of USART1 interface and communication unit
Leakage-current alarm instruction is sent to communication unit.As long as main control module is by there is a disconnecting link temperature value to be greater than disconnecting link temperature threshold
Just judge excess temperature, as long as and by have a shelf depreciation value be greater than shelf depreciation threshold value just judge to leak electricity, to effectively mention
The high precision of detection.
Communication module 250 is the IC chip with signal handling capacity, and in the present embodiment, communication module 250 can
Think USR-GPRS232-7S3 type.Communication module 250 is coupled by RS-232 communication bus with main control module 210.Specifically,
The RS-232 serial ports of communication module 250 is by RS-232 communication bus to couple with the USART1 interface of processing unit 212.Communication
It is additionally provided with SIM card in module 250, so that the telephone number in SIM card can be read in communication module 250.When communication module 250 receives
After the temperature alarming instruction and/or leakage-current alarm instruction that send to main control module 210, communication module 250 can be by the temperature report
Alert instruction and/or leakage-current alarm instruction carry out code conversion, to generate temperature alarming information and leakage-current alarm information.Communication
Module 250 can also be coupled with terminal device by mobile data network formation with set communication protocol.When communication module 250
After generating temperature alarming information and/or leakage-current alarm information, communication module 250 can read the telephone number of the SIM card, will
The temperature alarming information and/or leakage-current alarm information be sent in the form of short message or multimedia message mobile data network with
The terminal device of telephone number matches in SIM card.So that the patrol officer of carried terminal equipment no matter when or where, no matter
It is that can easily know that the chopper switch of power switch cabinet excess temperature or power switch cabinet occurs in work or in rest
Insulation component damage or aging and produce serious electric leakage.
Lasting detection acquisition disconnecting link temperature information is sent to by the temperature detecting module by being arranged close to chopper switch
Main control module, and lasting detection is obtained into part further through the Partial Discharge Detection module being arranged close in power switch cabinet and is put
Power information is sent to main control module.Main control module then can be by the disconnecting link temperature value obtained according to disconnecting link temperature information and disconnecting link temperature
Threshold value comparison is spent, and will be compared according to the shelf depreciation value of shelf depreciation acquisition of information and local discharge threshold.When disconnecting link temperature
When value is greater than the disconnecting link temperature threshold, main control module generates temperature alarming and instructs to communication module；And when local place value is big
When shelf depreciation threshold value, then generates leakage-current alarm and instruct to communication module.Communication module can be instructed according to temperature alarming and be given birth to
At temperature alarming information, or is instructed according to leakage-current alarm and generate leakage-current alarm information, and by temperature alarming information or leakage-current alarm
Information is sent to terminal device by way of short message or multimedia message.Therefore, electric power is arranged close to by temperature detecting module
The chopper switch of inside switch cabinet and it is arranged close to Partial Discharge Detection module in power switch cabinet, it just can be to power switch
In-cabinet temperature and partial discharge phenomenon are effectively detected.Pass through mobile data network between communication module and terminal device again
Coupling, in a manner of short message or multimedia message while the efficient and convenient remote alarms for realizing temperature and shelf depreciation electric leakage, moreover it is possible to
Enough effectively reduce the manufacture and maintenance cost of switch cabinet temperature partial discharge measurement alarm system.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. switch cabinet temperature partial discharge measures alarm system, characterized by comprising: temperature detecting module (230), shelf depreciation inspection
Survey module (240), main control module (210), communication module (250) and power module (220)；The temperature detecting module (230)
It is installed in power switch cabinet (100) with Partial Discharge Detection module (240), the temperature detecting module (230), which is located at, leans on
Chopper switch (110) in nearly power switch cabinet (100)；The main control module (210) respectively with the temperature detecting module
(230), Partial Discharge Detection module (240) and the communication module (250) coupling；The communication module (250) is for passing through
Mobile data network is coupled with power switch cabinet (100) interior terminal device；
The temperature detecting module (230) obtains the internal chopper switch of the power switch cabinet (100) for persistently detection
(110) disconnecting link temperature information, and disconnecting link temperature information is persistently sent to main control module (210)；
The Partial Discharge Detection module (240) is used for the interior shelf depreciation information of power switch cabinet (100) described in continuous collecting,
And shelf depreciation information is continued and is sent to the main control module (210)；
The main control module (210), disconnecting link temperature value and disconnecting link temperature threshold for will be obtained according to the disconnecting link temperature information
Value compares, and when the disconnecting link temperature value is greater than the disconnecting link temperature threshold, generates temperature alarming and instructs to the communication module
(250)；It is also used to be compared according to the shelf depreciation value of the shelf depreciation acquisition of information and local discharge threshold, when the office
When portion's place value is greater than the shelf depreciation threshold value, generates leakage-current alarm and instruct to the communication module (250)；
The communication module (250) generates temperature alarming information for instructing according to temperature alarming, is referred to according to the leakage-current alarm
It enables and generates leakage-current alarm information, and temperature alarming information or leakage-current alarm information are sent to by way of short message or multimedia message
Terminal device (300)；
The power module (220), for being coupled with external power supply, the power module (220) and the main control module (210)
Coupling.
2. switch cabinet temperature partial discharge according to claim 1 measures alarm system, which is characterized in that the shelf depreciation inspection
Surveying module (240) includes: at least two partial discharge detecting sensors (241), and each partial discharge detecting sensor (241) is equal
It is mounted in power switch cabinet (100), each partial discharge detecting sensor (241) is located at the position in power switch cabinet (100)
Set it is different with remaining partial discharge detecting sensor, each partial discharge detecting sensor (241) with the master control
Module (210) coupling.
3. switch cabinet temperature partial discharge according to claim 1 measures alarm system, which is characterized in that the temperature detection mould
Block (230) includes: at least two temperature detection sensors (231), and each temperature detection sensor (231) is installed in institute
It states in power switch cabinet (100), each temperature detection sensor (231) is located at the power switch cabinet (100) inside
Position and remaining described temperature detection sensor are different, and each temperature detection sensor (230) is located at close to described
Chopper switch (110) in power switch cabinet (100), each temperature detection sensor (231) with the main control module
(210) it couples.
4. switch cabinet temperature partial discharge according to claim 3 measures alarm system, which is characterized in that each temperature detection passes
Sensor (231) is coupled by 433MHz wireless network with the main control module (210).
5. switch cabinet temperature partial discharge according to claim 4 measures alarm system, which is characterized in that each temperature inspection
Surveying sensor (231) is passive wireless temperature sensor.
6. switch cabinet temperature partial discharge according to claim 1 measures alarm system, which is characterized in that the communication module
(250) it is coupled by RS-232 communication bus with the main control module (210).
7. switch cabinet temperature partial discharge according to claim 1 measures alarm system, which is characterized in that the main control module
It (210) include: signal receiving unit (211) and processing unit (212), the signal receiving unit (211) passes through wireless network
Coupled with the temperature detecting module (230), the processing unit (212) respectively with Partial Discharge Detection module (240), signal
Receiving unit (211) and the communication module (250) coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042810.6A CN109668595A (en) | 2019-01-17 | 2019-01-17 | Switch cabinet temperature partial discharge measures alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042810.6A CN109668595A (en) | 2019-01-17 | 2019-01-17 | Switch cabinet temperature partial discharge measures alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109668595A true CN109668595A (en) | 2019-04-23 |
Family
ID=66149580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910042810.6A Withdrawn CN109668595A (en) | 2019-01-17 | 2019-01-17 | Switch cabinet temperature partial discharge measures alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109668595A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862569A (en) * | 2020-08-12 | 2020-10-30 | 国网河南省电力公司邓州市供电公司 | Intelligent partial discharge monitoring data transmission algorithm |
| CN113985219A (en) * | 2021-09-24 | 2022-01-28 | 浙江华云电力工程设计咨询有限公司 | Switch cabinet local discharge and temperature combined monitoring system and monitoring method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120185185A1 (en) * | 2009-09-15 | 2012-07-19 | Korea Electrical Safety Corporation | Remote electrical safety diagnosis system and apparatus |
| CN205844461U (en) * | 2016-07-04 | 2016-12-28 | 杭州巨骐信息科技股份有限公司 | A kind of inside switch cabinet high pressure equipment partial discharge monitoring system |
| CN206114842U (en) * | 2016-10-31 | 2017-04-19 | 重庆同远能源技术有限公司 | Cubical switchboard local discharge signal processing device device |
| CN207036299U (en) * | 2017-05-19 | 2018-02-23 | 四川成瑞科技有限公司 | Switch cabinet temperature warning device and system |
| CN207066608U (en) * | 2017-05-19 | 2018-03-02 | 国网青海省电力公司西宁供电公司 | Switch cubicle detects warning device and system |
-
2019
- 2019-01-17 CN CN201910042810.6A patent/CN109668595A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120185185A1 (en) * | 2009-09-15 | 2012-07-19 | Korea Electrical Safety Corporation | Remote electrical safety diagnosis system and apparatus |
| CN205844461U (en) * | 2016-07-04 | 2016-12-28 | 杭州巨骐信息科技股份有限公司 | A kind of inside switch cabinet high pressure equipment partial discharge monitoring system |
| CN206114842U (en) * | 2016-10-31 | 2017-04-19 | 重庆同远能源技术有限公司 | Cubical switchboard local discharge signal processing device device |
| CN207036299U (en) * | 2017-05-19 | 2018-02-23 | 四川成瑞科技有限公司 | Switch cabinet temperature warning device and system |
| CN207066608U (en) * | 2017-05-19 | 2018-03-02 | 国网青海省电力公司西宁供电公司 | Switch cubicle detects warning device and system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111862569A (en) * | 2020-08-12 | 2020-10-30 | 国网河南省电力公司邓州市供电公司 | Intelligent partial discharge monitoring data transmission algorithm |
| CN111862569B (en) * | 2020-08-12 | 2021-07-06 | 国网河南省电力公司邓州市供电公司 | Intelligent partial discharge monitoring data transmission algorithm |
| CN113985219A (en) * | 2021-09-24 | 2022-01-28 | 浙江华云电力工程设计咨询有限公司 | Switch cabinet local discharge and temperature combined monitoring system and monitoring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207066608U (en) | Switch cubicle detects warning device and system | |
| CN201886066U (en) | Transformer core grounding current monitor | |
| CN108152656A (en) | One kind is based on one or two fusion type Fault Isolation intelligent measuring and control devices | |
| CN109668595A (en) | Switch cabinet temperature partial discharge measures alarm system | |
| CN109217468A (en) | A kind of intelligent terminal box and electricity consumption observing and controlling and auditing system | |
| CN201051018Y (en) | Switch case contact temperature monitoring and alarming system | |
| CN107884645A (en) | Based on voltage ratio compared with power capacitor method for monitoring operation states | |
| CN112629684A (en) | Temperature on-line monitoring and early warning prediction system for switch cabinet | |
| CN207036299U (en) | Switch cabinet temperature warning device and system | |
| CN111668812A (en) | Main transformer double-protection system and method | |
| CN105044506A (en) | Warehouse electricity utilization monitoring device | |
| CN110940931A (en) | Lightning arrester leakage current online monitoring system and method | |
| CN205388615U (en) | Novel it is anti -electricity -theft device | |
| CN203630283U (en) | Hand-held detection device used for cable insulation detection | |
| CN205622318U (en) | Power consumption monitoring system and distribution network | |
| CN207036271U (en) | wireless temperature detecting device and system | |
| CN109085470A (en) | A kind of arc light sensor device and equipment health status judgment method | |
| CN105738688A (en) | Electrical inspection and locking device based on leakage current of high voltage equipment | |
| CN211348414U (en) | Induction electricity-taking electric temperature monitoring device | |
| CN214310754U (en) | Circuit breaker partial discharge monitoring system | |
| CN213812636U (en) | Temperature acquisition sending terminal for switch cabinet | |
| CN205176134U (en) | Join in marriage net harmonic monitoring facilities | |
| CN210835080U (en) | Portable electrical safety detection terminal | |
| CN210401531U (en) | Electric safety monitoring device | |
| CN112114228A (en) | Power distribution network fault detection device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190423 |