CN110470942A - Electric power facility body leakage detects alarm system and detection method - Google Patents

Electric power facility body leakage detects alarm system and detection method Download PDF

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Publication number
CN110470942A
CN110470942A CN201910890301.9A CN201910890301A CN110470942A CN 110470942 A CN110470942 A CN 110470942A CN 201910890301 A CN201910890301 A CN 201910890301A CN 110470942 A CN110470942 A CN 110470942A
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China
Prior art keywords
module
self
leakage
cpu core
electric
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Withdrawn
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CN201910890301.9A
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Chinese (zh)
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宫元凯
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Individual
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Individual
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Priority to CN201910890301.9A priority Critical patent/CN110470942A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/20—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices
    • G01R15/202—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices using Hall-effect devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13—Receivers
    • G01S19/14—Receivers specially adapted for specific applications

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Power distribution network detection of electrical leakage technical field of the present invention, alarm system and detection method are detected more particularly to a kind of electric power facility body leakage, including CPU core core module, current transformer, Hall current mutual inductor and the auxiliary grounding wire being connected with power equipment shell, the external self-test signal line of CPU core core module, the self-test signal line and auxiliary grounding wire are each passed through current transformer and Hall current mutual inductor, the CPU core core module distinguishes external self-test signal circuit and signal processing, Acquisition Circuit, GPS module, the GPS module carries out the positioning of latitude and longitude coordinates position, CPU core core module is by ID number, latitude and longitude coordinates position, electric leakage time and self-test do not pass through information and are transmitted to main website；The present invention can detect outer casing electrification, and can generate sound-light alarm instruction at electric leakage scene or make a sound prompt, and nearby personnel pay attention to for prompt, far from electric power facility equipment, it avoids getting an electric shock, while distribution main website can be uploaded, professional is reminded to search and handle leak current fault in time.

Description

Electric power facility body leakage detects alarm system and detection method
Technical field
A kind of power distribution network detection of electrical leakage technical field of the present invention, and in particular to electric power facility body leakage detection alarm system And detection method.
Background technique
Currently, electric energy has been deep into the work of people as a kind of important energy with the fast development of national economy Make, the every aspect of life, electric power facility is seen everywhere, such as light pole, electric pole, transformer tank, billboard etc..
In recent years, these electric power facilities and electrical equipment, due to be used for a long time, the reasons such as insulation ag(e)ing, will cause facility, Equipment leakage, outer casing electrification.Since personnel are close, the personnel of generation get an electric shock, lead to dead accident it occur frequently that, especially pole Hold weather under, electric power facility, equipment are influenced by rainfall, the electric power facilities such as light pole, electric pole, transformer tank, equipment by To when water logging, electric shock accidents occurs, similar situation happens occasionally.Have there are many more fountain and forbid dabbling, to prevent touching The prompt etc. of electricity, causes huge threat to the life security of the people.
Although due to excessively sensitive, causing power supply facilities equipment frequent currently, there is earth leakage protective device to can detecte electric leakage Have a power failure, therefore does not usually connect earth leakage protective device.
Summary of the invention
In order to solve the above-mentioned technical problem the deficiency in, it is an object of the invention to: a kind of electric power facility shell leakage is provided Electro-detection alarm system and detection method can detect outer casing electrification, and generate sound-light alarm instruction at electric leakage scene or issue Auditory tone cues prompt personnel nearby note that separate electric power facility equipment, avoids getting an electric shock, while can upload distribution main website, mention in time The professional that wakes up searches and processing leak current fault.
The present invention is technical solution used by solving its technical problem are as follows:
The electric power facility body leakage detects alarm system, including CPU core core module, current transformer, Hall current Mutual inductor and the auxiliary grounding wire being connected with power equipment shell, the external self-test signal line of CPU core core module are described Self-test signal line and auxiliary grounding wire are each passed through current transformer and Hall current mutual inductor, the CPU core core module point Not external self-test signal circuit and signal processing, Acquisition Circuit, GPS module, it is fixed that the GPS module carries out latitude and longitude coordinates position ID number, latitude and longitude coordinates position, electric leakage time and self-test are not passed through information and are transmitted to main website by position, CPU core core module.
Preferably, the CPU core core module difference outer signal transmission unit, display unit and alarm unit.
Preferably, the signal transmission unit includes Internet of Things module, power carrier communication module, bluetooth, WiFi, RJ45 Network interface or 485/232 mouthful.
Preferably, the alarm unit includes combined aural and visual alarm and loudspeaker, the combined aural and visual alarm by alarm drive into Row driving, the loudspeaker are controlled by speech chip.
The detection method of the electric power facility body leakage detection alarm system, comprising the following steps:
A, it when electric power facility equipment leakage, outer casing electrification, is detected by current transformer or Hall current mutual inductor auxiliary Electric current I in adjuvant grafting ground wireGroundSize is handled through signal processing, Acquisition Circuit, and CPU core core module obtains current value, can basis Formula 1 calculates sheath voltage V, including does not leak electricity, electric leakage, serious drain, and the electric leakage grade such as danger, electric leakage information includes ID Number, latitude and longitude coordinates position leak electricity the time；
V=IGround.RPeople(1)
In formula: RPeopleHuman body simulation impedance, IGroundShell is through human body simulation impedance RPeopleFlow into auxiliary earth, V- sheath voltage；
B, CPU core core module detects leakage current signal, can by GPS module read longitude and latitude positional information and when Between, according to user's requirement and grade of leaking electricity, live combined aural and visual alarm warning road people is driven, or pass through speech chip, control loudspeaking Device issues voice prompting, reminds passerby separate；
C, when electric power facility device housings are not charged, auxiliary grounding wire no current passes through, at this point, CPU core core module is every Every a period of time, self-test signal circuit is controlled, generates self-test signal, current transformer connects with the collection of letters number of Hall current mutual inductor simultaneously Acquisition, comparison transmitting signal, it can be achieved that device timing self-test, there is self-test and pass through and by two kinds of information；
D, electric leakage information and self-test can not be passed through information and pass through Internet of Things module or power line carrier, PLC by CPU core core module Module is uploaded to main website, by main website notice related personnel, distributes maintenance task；CPU core core module can be by electric leakage information and self-test Live other equipment are not connected, exchange information, and upload main website by RJ45 network interface or 485/232 mouthful by information；CPU core Core module can be communicated by bluetooth or WiFi with mobile phone, plate, and device ID number, leakage-current alarm threshold value etc. is arranged by mobile phone, plate Information, or be arranged by main website by Internet of Things module or power carrier communication module.
Compared with prior art, the invention has the following advantages:
The present invention can detect outer casing electrification, and can generate sound-light alarm instruction at electric leakage scene or make a sound and mention Show, nearby personnel avoid getting an electric shock, while can upload distribution main website note that far from electric power facility equipment for prompt, remind in time professional People finder and processing leak current fault, in addition, also with self-checking function, it can be achieved that timing self-test, and scene instruction and upload Main website can detect the electric leakage of electric power facility device housings, fountain electric leakage etc..
Detailed description of the invention
Fig. 1 data acquisition principle figure of the present invention；
Fig. 2 structure of the invention block diagram.
Specific embodiment
The embodiment of the present invention is described further with reference to the accompanying drawing:
Embodiment 1
As shown in Figs. 1-2, electric power facility body leakage of the present invention detects alarm system, including CPU core core module, electricity Current transformer, Hall current mutual inductor and the auxiliary grounding wire being connected with power equipment shell, outside the CPU core core module It is connected to inspection signal wire, the self-test signal line and auxiliary grounding wire are each passed through current transformer and Hall current mutual inductor, The CPU core core module distinguishes external self-test signal circuit and signal processing, Acquisition Circuit, GPS module, the GPS module into ID number, latitude and longitude coordinates position, electric leakage time and self-test are not passed through letter by latitude coordinate location of passing through positioning, CPU core core module Breath is transmitted to main website.The CPU core core module difference outer signal transmission unit, display unit and alarm unit.Specifically, institute Stating signal transmission unit includes Internet of Things module, power carrier communication module, bluetooth, WiFi, RJ45 network interface or 485/232 mouthful. The alarm unit includes combined aural and visual alarm and loudspeaker, and the combined aural and visual alarm is driven by alarm, the loudspeaking Device is controlled by speech chip.Current acquisition part uses two current sensors (current transformers, Hall current mutual inductance Device), two paths of data Acquisition Circuit realizes hardware redundancy design, wherein not influencing device work when damaging all the way.
Specific working principle:
When electric power facility, device housings electrification, enter auxiliary through the human body simulation impedance R stream of people by shell with having electric current I Ground connection.The ground electric current I size in auxiliary grounding wire is detected, when analog calculates human contact's shell, the ground sheath voltage V=I .R People's (formula 1), degree of danger of the assessment electric leakage to human body.Human body simulation impedance can be simulated, human body simulation with resistance or reactance Impedance generally takes 1700 ohm (reactance im-pedance frequency is 50Hz), is no more than 2000 ohm.
The detection method of the electric power facility body leakage detection alarm system, comprising the following steps:
A, it when electric power facility equipment leakage, outer casing electrification, is detected by current transformer or Hall current mutual inductor auxiliary Electric current I in adjuvant grafting ground wireGroundSize is handled through signal processing, Acquisition Circuit, and CPU core core module obtains current value, can basis Formula 1 calculates sheath voltage V, including does not leak electricity, electric leakage, serious drain, and the electric leakage grade such as danger, electric leakage information includes ID Number, latitude and longitude coordinates position leak electricity the time；
V=IGround.RPeople (1)
In formula: RPeopleHuman body simulation impedance, IGroundShell is through human body simulation impedance RPeopleFlow into auxiliary earth, V- sheath voltage；
B, CPU core core module detects leakage current signal, can by GPS module read longitude and latitude positional information and when Between, according to user's requirement and grade of leaking electricity, live combined aural and visual alarm warning road people is driven, or pass through speech chip, control loudspeaking Device issues voice prompting, reminds passerby separate；
C, when electric power facility device housings are not charged, auxiliary grounding wire no current passes through, at this point, CPU core core module is every Every a period of time, self-test signal circuit is controlled, generates self-test signal, current transformer connects with the collection of letters number of Hall current mutual inductor simultaneously Acquisition, comparison transmitting signal, it can be achieved that device timing self-test, there is self-test and pass through and by two kinds of information；
D, electric leakage information and self-test can not be passed through information and pass through Internet of Things module or power line carrier, PLC by CPU core core module Module is uploaded to main website, by main website notice related personnel, distributes maintenance task；CPU core core module can be by electric leakage information and self-test Live other equipment are not connected, exchange information, and upload main website by RJ45 network interface or 485/232 mouthful by information；CPU core Core module can be communicated by bluetooth or WiFi with mobile phone, plate, and device ID number, leakage-current alarm threshold value etc. is arranged by mobile phone, plate Information, or be arranged by main website by Internet of Things module or power carrier communication module.

Claims (5)

1. a kind of electric power facility body leakage detection alarm system, including CPU core core module, current transformer, Hall current are mutual Sensor and the auxiliary grounding wire being connected with power equipment shell, which is characterized in that the external self-test letter of CPU core core module Number line, the self-test signal line and auxiliary grounding wire are each passed through current transformer and Hall current mutual inductor, the CPU core Core module distinguishes external self-test signal circuit and signal processing, Acquisition Circuit, GPS module, and the GPS module carries out longitude and latitude seat ID number, latitude and longitude coordinates position, electric leakage time and self-test are not passed through information and are transmitted to master by cursor position positioning, CPU core core module It stands.
2. electric power facility body leakage according to claim 1 detects alarm system, which is characterized in that the core cpu Module distinguishes outer signal transmission unit, display unit and alarm unit.
3. electric power facility body leakage according to claim 2 detects alarm system, which is characterized in that the signal transmission Unit includes Internet of Things module, power carrier communication module, bluetooth, WiFi, RJ45 network interface or 485/232 mouthful.
4. electric power facility body leakage according to claim 2 detects alarm system, which is characterized in that the alarm unit Including combined aural and visual alarm and loudspeaker, the combined aural and visual alarm is driven by alarm, and the loudspeaker is by speech chip It is controlled.
5. a kind of detection method using the described in any item electric power facility body leakage detection alarm systems of claim 1-4, Characterized by comprising the following steps:
A, it when electric power facility equipment leakage, outer casing electrification, is connect by current transformer or Hall current mutual inductor detection auxiliary Electric current I in ground wireGroundSize is handled through signal processing, Acquisition Circuit, and CPU core core module obtains current value, can be according to formula 1 calculates sheath voltage V, including does not leak electricity, electric leakage, serious drain, and the electric leakage grade such as danger, electric leakage information includes ID number, warp Latitude coordinate location leaks electricity the time；
V=IGround.RPeople (1)
In formula: RPeopleHuman body simulation impedance, IGroundShell is through human body simulation impedance RPeopleFlow into auxiliary earth, V- sheath voltage；
B, CPU core core module detects leakage current signal, can read longitude and latitude positional information and time, root by GPS module According to user's requirement and grade of leaking electricity, live combined aural and visual alarm warning road people is driven, or by speech chip, controls loudspeaker and issues Voice prompting reminds passerby separate；
C, when electric power facility device housings are not charged, auxiliary grounding wire no current passes through, at this point, CPU core core module is every one Section the time, control self-test signal circuit, generate self-test signal, current transformer connect with Hall current mutual inductor collect mail number and adopt Collection, comparison transmitting signal, it can be achieved that device timing self-test, there is self-test and pass through and by two kinds of information；
D, electric leakage information and self-test can not be passed through information and pass through Internet of Things module or power carrier communication module by CPU core core module It is uploaded to main website, by main website notice related personnel, distributes maintenance task；CPU core core module can be obstructed by electric leakage information and self-test Information is crossed by RJ45 network interface or 485/232 mouthful, live other equipment is connected, exchanges information, and upload main website；Core cpu mould Block can be communicated by bluetooth or WiFi with mobile phone, plate, and device ID number, the letter such as leakage-current alarm threshold value is arranged by mobile phone, plate Breath, or be arranged by main website by Internet of Things module or power carrier communication module.
CN201910890301.9A 2019-09-20 2019-09-20 Electric power facility body leakage detects alarm system and detection method Withdrawn CN110470942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910890301.9A CN110470942A (en) 2019-09-20 2019-09-20 Electric power facility body leakage detects alarm system and detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910890301.9A CN110470942A (en) 2019-09-20 2019-09-20 Electric power facility body leakage detects alarm system and detection method

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CN201910890301.9A Withdrawn CN110470942A (en) 2019-09-20 2019-09-20 Electric power facility body leakage detects alarm system and detection method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112505580A (en) * 2020-11-03 2021-03-16 深圳供电局有限公司 Electric leakage detection device
CN112737920A (en) * 2020-12-16 2021-04-30 交通运输部南海航海保障中心广州通信中心 Multi-party instant messaging system based on audio energy detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112505580A (en) * 2020-11-03 2021-03-16 深圳供电局有限公司 Electric leakage detection device
CN112737920A (en) * 2020-12-16 2021-04-30 交通运输部南海航海保障中心广州通信中心 Multi-party instant messaging system based on audio energy detection

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Application publication date: 20191119