CN109470912A - A kind of electric user's power distribution room fault early warning method of guarantor and system - Google Patents
A kind of electric user's power distribution room fault early warning method of guarantor and system Download PDFInfo
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- CN109470912A CN109470912A CN201810315853.2A CN201810315853A CN109470912A CN 109470912 A CN109470912 A CN 109470912A CN 201810315853 A CN201810315853 A CN 201810315853A CN 109470912 A CN109470912 A CN 109470912A
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- 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
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
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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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The present invention relates to electric system maintenance technology fields, and in particular to a kind of electric user's power distribution room fault early warning method of guarantor and system.Including current measuring device, voltage measuring apparatus, switch state detector, wireless communication device, display device, warning device and microprocessor, it is characterized in that, current measuring device, voltage measuring apparatus and switch state detector are assigned with mark ID；Current measuring device and voltage measuring apparatus are mounted in the measurement point for protecting electric user's power distribution room, measurement point position Yu Bao electricity user distribution branch starting point and controller switching equipment tie point, and switch state detector is mounted on the electric user's distribution line switch of guarantor；Wireless communication device is mounted in the electric user's power distribution room of guarantor.The beneficial effects of the present invention are: can find that the failure of electric user indoor distribution line and equipment is protected in simultaneously early warning in time, instructs failure to dispose and repair, accelerate the speed to restore electricity for user.
Description
Technical field
The present invention relates to electric system maintenance technology fields, and in particular to a kind of electric user's power distribution room fault early warning method of guarantor
And system.
Background technique
Responsible consumer electricity consumption situation is the focus of power supply enterprise, although the amount of responsible consumer is few, its be
Local society, politics occupy an important position in economy, and interruption of power supply would be possible to cause larger political impact, larger economic damage
Mistake or even social public order heavy clutter etc..Task emphasis is powered in guarantee power distribution network for the guarantor of responsible consumer at present
In equipment fault-free, and the failure problems for the electrical equipment that ignores user itself.When occurring some use in the electrical equipment of user
When short trouble occurs in electric equipment, instant power distribution network fault-free also results in user's power-off, causes damages.And it protects electric with indoor
Usual electrical equipment is more, and power circuit is generally embedded in wall, and malfunction elimination is very difficult.However general electricity of protecting is with per family
For large user, such as mansion and venue, these mansions and venue are commonly provided with switchgear house, not chummery, electrical equipment and equipment
Type is powered by a branch of switchgear house, thus can be monitored to switchgear house, can be timely as broken down
It was found that the branch to break down, can restore rapidly the power supply of other branches, then check failure after branch is cut off.
106372769 A of China Patent No. CN, publication date 1 day 2 months 2017 months, a kind of guarantor's electricity consumption monitoring system, including protect electricity
Task monitoring module, for protect the establishment of electric scheme, protecting the implementation of electric scheme and carrying out total evaluation, institute to electric scheme is protected
The establishment for protecting electric scheme is stated, is to record each process relevant work content, person liable and timing node, is formed and protects electric flow chart；It protects
Power information enquiry module, protects the inquiry of electric scheme for carrying out history, and the current electric progress queries of guarantor and protects for each time electric
Protect electric brief summary inquiry；It protects risk and manages module, for providing repairing monitoring and emergency preplan；Electricity rehearsal training module is protected, is used
Electric the monitoring regime and online training course are protected in providing.This programme can clearly protect the personal work responsibility for personnel, guarantee efficient
Rapidly carry out the work；Ensure that major incident command system can be smooth, it is leading in entire monitoring system to fully demonstrate command layer
Effect；Risk control capability is further strengthened, guarantees power grid and personal safety.But it can not achieve indoor to electric user is protected
The failure monitoring of distribution line and equipment.
Summary of the invention
Lack the technical problem to be solved by the present invention is protecting electric system at present to the indoor distribution line of the electric user of guarantor and equipment
Fault pre-alarming the technical issues of.It proposes a kind of monitoring measurement point current value and voltage value is realized to protecting the indoor distribution of electric user
The guarantor's electricity user's power distribution room fault early warning method and system of the failure monitoring of route and equipment.
In order to solve the above technical problems, the technical solution used in the present invention are as follows: a kind of electric user's power distribution room failure of guarantor is pre-
Alert system, including current measuring device, voltage measuring apparatus, switch state detector, wireless communication device, display device,
Memory, warning device and microprocessor, the current measuring device include current measuring unit and current value transmission unit, institute
Stating voltage measuring apparatus includes voltage measurement unit and voltage value transmission unit, and the switch state detector includes switch shape
State detection unit and switch state transmission unit, the current measuring device, voltage measuring apparatus and switch state detector
It is assigned with mark ID；The current measuring device and voltage measuring apparatus are mounted in the measurement point for protecting electric user's power distribution room,
The current value and voltage value of measurement point are measured respectively, and the measurement point position Yu Bao electricity user distribution branch starting point and controller switching equipment connect
Contact, the switch state detector are mounted on the electric user's distribution line switch of guarantor；The wireless communication device is mounted on
It protects in electric user's power distribution room, the current measuring device, voltage measuring apparatus and switch state detector are by wireless communication
It is connect with wireless communication device, the wireless communication device is connect by wire communication with microprocessor, and the display device is deposited
Reservoir and warning device are connect with microprocessor.When equipment will break down, often along with the variation of current-voltage characteristic
Simultaneously will lead to other associated devices current-voltage characteristic change, thus can by monitor measurement point Current Voltage value,
It is matched to faulty equipment and carries out early warning.Using be arranged in different measurement points with mark ID current-voltage measurement unit,
Current and voltage data can be collected, faulty equipment can be found by data comparison.
Preferably, the wireless communication device includes receiving bluetooth module, receiving MCU and wire communication module, it is described
Wire communication module is connect with microprocessor by wire communication；It the current value transmission unit, voltage value transmission unit and opens
Off status transmission unit includes sending bluetooth module and sending MCU, and the reception MCU successively controls and receives indigo plant to set the period
Tooth module is connect with each transmission bluetooth module, and current value, voltage value or switch state are being sent bluetooth list by the transmission MCU
Reception bluetooth unit is sent to by sending bluetooth unit when member is connect with reception bluetooth unit.Bluetooth is a kind of mature wireless
Communication means, the foundation of cordless communication network will be accelerated and with the stability of height by setting up cordless communication network using bluetooth.
Preferably, the wireless communication device includes photographic device and wire communication module, the wire communication module
It is connect with microprocessor by wire communication；The current value transmission unit includes MCU, colored lamp array, pedestal and lamp array bracket,
The lamp array bracket is mounted on the base by ball-joint, and the colour lamp array is located at lamp array cradle top surface, the lamp array bracket
Top surface is plane, and current measuring unit and MCU are mounted on the base, and current measuring unit and colored lamp array are electrically connected with MCU, institute
State colored lamp array include several colored lamp beads, MCU current value according to measured by current measuring unit and mark ID according to
Set the opening and closing and color of rule control colour lamp bead, the lamp array cradle top surface face photographic device.Due to wireless communication
Frequency range is limited, wirelessly communicates frequently with tdm communication, leads to data transmission not and be continuous in time, this is to real-time monitoring task
Produce adverse effect.Radio signal can be made to reduce in region by the combination of colored lamp array and photographic device, when realization
Between on continuous data without breakpoint send.
Preferably, the wireless communication device includes photographic device and wire communication module, the wire communication module
It is connect with microprocessor by wire communication；The voltage value transmission unit includes MCU, colored lamp array, pedestal and lamp array bracket,
The lamp array bracket is mounted on the base by ball-joint, and the colour lamp array is located at lamp array cradle top surface, the lamp array bracket
Top surface is plane, and voltage measurement unit and MCU are mounted on the base, and voltage measurement unit and colored lamp array are electrically connected with MCU, institute
State colored lamp array include several colored lamp beads, MCU voltage value according to measured by voltage measurement unit and mark ID according to
Set the opening and closing and color of rule control colour lamp bead, the lamp array cradle top surface face photographic device.
Preferably, the wireless communication device includes photographic device and wire communication module, the wire communication module
It is connect with microprocessor by wire communication；The switch state transmission unit includes MCU, colored lamp array, pedestal and lamp array branch
Frame, the lamp array bracket are mounted on the base by ball-joint, and the colour lamp array is located at lamp array cradle top surface, the lamp array branch
Top of support is plane, and switch state detection unit and MCU are mounted on the base, switch state detection unit and colored lamp array with
MCU electrical connection, the colour lamp array include several colored lamp beads, and the MCU is opened according to measured by switch state detection unit
The opening and closing and color of off status and mark ID according to setting rule control colour lamp bead, the lamp array cradle top surface face camera shooting dress
It sets.
Preferably, the colour lamp array includes nine groups of colour lamp beads, every group of colour lamp bead includes two colored lamp beads, nine
The colored lamp bead parallel equidistant arrangement of group, each colour lamp bead can show red, yellow and blue three-color, every group of two lampions
Pearl shares nine kinds of color combinations when opening, respectively indicate number 1~9, and two colored lamp beads with group are turned off expression number
0, first three groups colour lamp bead display mark ID, rear six groups of colour lamp beads indicate the current value or voltage value as unit of mA or mV,
Mark circle is surrounded with around the colour lamp array.Colored lamp bead is made of the monochromatic lamp bead of three kinds of colors, is controlled by MCU therein
Some monochromatic lamp bead, which shines, can be switched light color.
Preferably, the colour lamp array includes four groups of colour lamp beads, every group of colour lamp bead includes two colored lamp beads, four
The colored lamp bead parallel equidistant arrangement of group, each colour lamp bead can show red, yellow and blue three-color, every group of two lampions
Pearl shares nine kinds of color combinations when opening, respectively indicate number 1~9, and two colored lamp beads with group are turned off expression number
0, first three groups colour lamp bead display mark ID, the 4th group of colour lamp bead is displayed in red expression and closes the switch, be turned off expression and open
Shutdown is opened.
A kind of electric user's power distribution room fault early warning method of guarantor, is suitable for a kind of electric user's power distribution room fault pre-alarming of guarantor above-mentioned
System, comprising the following steps: A) it protects before electric task starts, data acquisition is carried out to electric user is protected, in each Switch State Combination in Power Systems
Under, the load for sequentially changing measurement point makes it traverse minimum load and highest load, and the current value recorded between measurement point is mutual
Relationship and voltage value correlation, establish current relationship function and voltage relationship function；B) during protecting electric task, detection switch
Combinations of states, each measurement point voltage value and current value, by the surveyed current value of some measurement point and voltage value, and by current relationship
The predicted current value and voltage value comparison that function and voltage relationship function and other measurement point current value and voltage values are derived, if
Current value difference or voltage value difference are more than that given threshold then issues early warning.When equipment will break down, often along with electricity
The change of the current-voltage characteristic for changing while will lead to other associated devices of current-voltage characteristics, thus monitoring can be passed through and surveyed
Amount point Current Voltage value, is matched to faulty equipment and carries out early warning.
Preferably, the current value difference calculation method are as follows:Wherein i is the survey for participating in calculating
Measure point, qiFor the current value that measurement point detects, Q is current relationship function, Pi' in addition to i remaining measurement point set；It is described
Voltage value difference calculation method are as follows:Wherein i is the measurement point for participating in calculating, viIt is detected for measurement point
Voltage value, V be voltage relationship function, Pi' in addition to i remaining measurement point set.
Substantial effect of the invention is: it can find that the event of electric user indoor distribution line and equipment is protected in simultaneously early warning in time
Barrier instructs failure to dispose and repair, accelerates the speed to restore electricity for user.
Detailed description of the invention
Fig. 1 is to protect electric user's power distribution room fault early warning system structure chart.
Fig. 2 is to protect electric user's power distribution room fault early warning method flow diagram.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, a specific embodiment of the invention is further described in detail.
As shown in Figure 1, to protect electric user's power distribution room fault early warning system structure chart, including current measuring device, voltage are surveyed
Measure device, switch state detector, wireless communication device, display device, memory, warning device and microprocessor, electric current
Measuring device includes current measuring unit and current value transmission unit, and voltage measuring apparatus includes voltage measurement unit and voltage value
Transmission unit, switch state detector include switch state detection unit and switch state transmission unit, current measuring device,
Voltage measuring apparatus and switch state detector are assigned with mark ID；Current measuring device and voltage measuring apparatus are mounted on
It protects in the measurement point of electric user's power distribution room, measures the current value and voltage value of measurement point respectively, measurement point position Yu Bao electricity user matches
Electric branch starting point and controller switching equipment tie point, switch state detector are mounted on the electric user's distribution line switch of guarantor；Wirelessly
Communication device is mounted in the electric user's power distribution room of guarantor, and current measuring device, voltage measuring apparatus and switch state detector are logical
Wireless communication to be crossed to connect with wireless communication device, wireless communication device is connect by wire communication with microprocessor, display device,
Memory and warning device are connect with microprocessor.When equipment will break down, often along with the change of current-voltage characteristic
Change while will lead to the change of the current-voltage characteristic of other associated devices, thus can be by monitoring measurement point Current Voltage
Value, is matched to faulty equipment and carries out early warning.Use the current-voltage measurement list with mark ID for being arranged in different measurement points
Member can collect current and voltage data, can find faulty equipment by data comparison.
As the embodiment of recommendation, wireless communication device includes receiving bluetooth module, receiving MCU and wire communication module,
Wire communication module is connect with microprocessor by wire communication；Current value transmission unit, voltage value transmission unit and switch shape
State transmission unit include send bluetooth module and send MCU, receive MCU with set the period successively control and receive bluetooth module with
Each transmission bluetooth module connection sends MCU and is sending bluetooth unit and receiving bluetooth current value, voltage value or switch state
Reception bluetooth unit is sent to by sending bluetooth unit when unit connects.Bluetooth is a kind of wireless communications method of maturation, is made
The foundation of cordless communication network will be accelerated and with the stability of height by setting up cordless communication network with bluetooth.
As the embodiment of recommendation, wireless communication device includes photographic device and wire communication module, wire communication module
It is connect with microprocessor by wire communication；Current value transmission unit includes MCU, colored lamp array, pedestal and lamp array bracket, lamp array
Bracket is mounted on the base by ball-joint, and colored lamp array is located at lamp array cradle top surface, and lamp array cradle top surface is plane, and electric current is surveyed
Amount unit and MCU are mounted on the base, and current measuring unit and colored lamp array are electrically connected with MCU, and colored lamp array includes several
Colored lamp bead, MCU current value according to measured by current measuring unit and mark ID opening according to setting rule control colour lamp bead
It closes and color, lamp array cradle top surface face photographic device.Since the frequency range of wireless communication is limited, wireless communication is logical frequently with timesharing
Letter, leads to data transmission not and is continuous in time, this produces adverse effect to real-time monitoring task.By colored lamp array and
The combination of photographic device can be such that radio signal in region reduces, and realize that the continuous data on the time without breakpoint are sent.
As the embodiment of recommendation, wireless communication device includes photographic device and wire communication module, wire communication module
It is connect with microprocessor by wire communication；Voltage value transmission unit includes MCU, colored lamp array, pedestal and lamp array bracket, lamp array
Bracket is mounted on the base by ball-joint, and colored lamp array is located at lamp array cradle top surface, and lamp array cradle top surface is plane, and voltage is surveyed
Amount unit and MCU are mounted on the base, and voltage measurement unit and colored lamp array are electrically connected with MCU, and colored lamp array includes several
Colored lamp bead, MCU voltage value according to measured by voltage measurement unit and mark ID opening according to setting rule control colour lamp bead
It closes and color, lamp array cradle top surface face photographic device.
As the embodiment of recommendation, wireless communication device includes photographic device and wire communication module, wire communication module
It is connect with microprocessor by wire communication；Switch state transmission unit includes MCU, colored lamp array, pedestal and lamp array bracket, lamp
Battle array bracket is mounted on the base by ball-joint, and colored lamp array is located at lamp array cradle top surface, and lamp array cradle top surface is plane, switch
State detection unit and MCU are mounted on the base, and switch state detection unit and colored lamp array are electrically connected with MCU, colored lamp array
Including several colored lamp beads, MCU switch state according to measured by switch state detection unit and mark ID are according to setting rule
Control the opening and closing and color of colored lamp bead, lamp array cradle top surface face photographic device.
As the embodiment of recommendation, colored lamp array includes nine groups of colour lamp beads, and every group of colour lamp bead includes two lampions
Pearl, the arrangement of nine groups of colour lamp bead parallel equidistants, each colour lamp bead can show red, yellow and blue three-color, two of every group
Colored lamp bead shares nine kinds of color combinations when opening, respectively indicate number 1~9, and two colored lamp beads with group are turned off table
Registration word 0, first three groups colour lamp bead display mark ID, rear six groups of colour lamp beads indicate the current value or electricity as unit of mA or mV
Pressure value is surrounded with mark circle around colored lamp array.Colored lamp bead is made of the monochromatic lamp bead of three kinds of colors, wherein by MCU control
Some monochromatic lamp bead shine i.e. changeable light color.
As the embodiment of recommendation, colored lamp array includes four groups of colour lamp beads, and every group of colour lamp bead includes two lampions
Pearl, the arrangement of four groups of colour lamp bead parallel equidistants, each colour lamp bead can show red, yellow and blue three-color, two of every group
Colored lamp bead shares nine kinds of color combinations when opening, respectively indicate number 1~9, and two colored lamp beads with group are turned off table
Registration word 0, first three groups colour lamp bead display mark ID, the 4th group of colour lamp bead are displayed in red expression and close the switch, be turned off
Indicate that switch disconnects.
As shown in Fig. 2, to protect electric user's power distribution room fault early warning method flow diagram, comprising the following steps: A) Bao electricity Ren
Before business starts, data acquisition is carried out to electric user is protected, under each Switch State Combination in Power Systems, the load for sequentially changing measurement point makes it
Minimum load and highest load are traversed, the current value correlation and voltage value correlation between measurement point are recorded, establishes electricity
Flow relation function and voltage relationship function；B) during protecting electric task, detection switch combinations of states, each measurement point voltage value and
Current value, by the surveyed current value of some measurement point and voltage value, and by current relationship function and voltage relationship function and other surveys
The predicted current value and voltage value comparison that amount point current value and voltage value are derived, if current value difference or voltage value difference are more than
Given threshold then issues early warning.When equipment will break down, often will lead to simultaneously along with the variation of current-voltage characteristic
The change of the current-voltage characteristic of other associated devices, thus failure can be matched to by monitoring measurement point Current Voltage value
Equipment simultaneously carries out early warning.
As the embodiment of recommendation, current value difference calculation method are as follows:Wherein i is to participate in calculating
Measurement point, qiFor the current value that measurement point detects, Q is current relationship function, Pi' in addition to i remaining measurement point set；
Voltage value difference calculation method are as follows:Wherein i is the measurement point for participating in calculating, viIt is detected for measurement point
Voltage value, V be voltage relationship function, Pi' in addition to i remaining measurement point set.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of electric user's power distribution room fault early warning system of guarantor, including the inspection of current measuring device, voltage measuring apparatus, switch state
Survey device, wireless communication device, display device, memory, warning device and microprocessor, which is characterized in that
The current measuring device includes current measuring unit and current value transmission unit, and the voltage measuring apparatus includes voltage
Measuring unit and voltage value transmission unit, the switch state detector include switch state detection unit and switch state hair
Unit is sent, the current measuring device, voltage measuring apparatus and switch state detector are assigned with mark ID；
The current measuring device and voltage measuring apparatus are mounted in the measurement point for protecting electric user's power distribution room, respectively measurement measurement
The current value and voltage value of point, the measurement point position Yu Bao electricity user distribution branch starting point and controller switching equipment tie point, it is described to open
Off status detection device is mounted on the electric user's distribution line switch of guarantor；
The wireless communication device is mounted in the electric user's power distribution room of guarantor, the current measuring device, voltage measuring apparatus and is opened
Off status detection device is connect with wireless communication device by wireless communication, the wireless communication device by wire communication with it is micro-
Processor connection, the display device, memory and warning device are connect with microprocessor.
2. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 1, which is characterized in that
The wireless communication device includes receiving bluetooth module, receiving MCU and wire communication module, the wire communication module with
Microprocessor is connected by wire communication；
The current value transmission unit, voltage value transmission unit and switch state transmission unit include sending bluetooth module and hair
Send MCU, the reception MCU successively controls and receives bluetooth module and connect with each transmission bluetooth module to set the period, the hair
It send MCU to pass through current value, voltage value or switch state when sending bluetooth unit and connecting with reception bluetooth unit and sends bluetooth
Unit is sent to reception bluetooth unit.
3. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 1, which is characterized in that
The wireless communication device includes photographic device and wire communication module, and the wire communication module passes through with microprocessor
Wire communication connection；
The current value transmission unit includes that MCU, colored lamp array, pedestal and lamp array bracket, the lamp array bracket pass through ball-joint
It is mounted on the base, the colour lamp array is located at lamp array cradle top surface, and the lamp array cradle top surface is plane, current measuring unit
It is mounted on the base with MCU, current measuring unit and colored lamp array are electrically connected with MCU, and the colour lamp array includes several coloured silks
Colored lights pearl, MCU current value according to measured by current measuring unit and mark ID are according to setting rule control colour lamp bead
Opening and closing and color, the lamp array cradle top surface face photographic device.
4. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 1, which is characterized in that
The wireless communication device includes photographic device and wire communication module, and the wire communication module passes through with microprocessor
Wire communication connection；
The voltage value transmission unit includes that MCU, colored lamp array, pedestal and lamp array bracket, the lamp array bracket pass through ball-joint
It is mounted on the base, the colour lamp array is located at lamp array cradle top surface, and the lamp array cradle top surface is plane, voltage measurement unit
It is mounted on the base with MCU, voltage measurement unit and colored lamp array are electrically connected with MCU, and the colour lamp array includes several coloured silks
Colored lights pearl, MCU voltage value according to measured by voltage measurement unit and mark ID are according to setting rule control colour lamp bead
Opening and closing and color, the lamp array cradle top surface face photographic device.
5. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 1, which is characterized in that
The wireless communication device includes photographic device and wire communication module, and the wire communication module passes through with microprocessor
Wire communication connection；
The switch state transmission unit includes that MCU, colored lamp array, pedestal and lamp array bracket, the lamp array bracket pass through flexural pivot
It connects and is mounted on the base, the colour lamp array is located at lamp array cradle top surface, and the lamp array cradle top surface is plane, switch state inspection
It surveys unit and MCU is mounted on the base, switch state detection unit and colored lamp array are electrically connected with MCU, the colour lamp array packet
Several colored lamp beads are included, MCU switch state according to measured by switch state detection unit and mark ID are advised according to setting
Then control the opening and closing and color of colored lamp bead, the lamp array cradle top surface face photographic device.
6. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 3 or 4, which is characterized in that
The colour lamp array includes nine groups of colour lamp beads, and every group of colour lamp bead includes two colored lamp beads, and nine groups of colour lamp beads are flat
Row equidistant arrangement, each colour lamp bead can show red, yellow and blue three-color, and the colored lamp bead of two of every group is total when opening
There are nine kinds of color combinations, respectively indicate number 1~9, two colored lamp beads with group are turned off expression number 0, and first three groups are colored
Lamp bead display mark ID, rear six groups of colour lamp beads indicate the current value or voltage value as unit of mA or mV, the colour lamp array
Surrounding is surrounded with mark circle.
7. the electric user's power distribution room fault early warning system of a kind of guarantor according to claim 5, which is characterized in that
The colour lamp array includes four groups of colour lamp beads, and every group of colour lamp bead includes two colored lamp beads, and four groups of colour lamp beads are flat
Row equidistant arrangement, each colour lamp bead can show red, yellow and blue three-color, and the colored lamp bead of two of every group is total when opening
There are nine kinds of color combinations, respectively indicate number 1~9, two colored lamp beads with group are turned off expression number 0, and first three groups are colored
Lamp bead display mark ID, the 4th group of colour lamp bead are displayed in red expression and close the switch, and are turned off expression switch and disconnect.
8. a kind of electric user's power distribution room fault early warning method of guarantor is suitable for such as a kind of described in any item electric users of guarantor of right 1~7
Power distribution room fault early warning system, which is characterized in that
The following steps are included:
A before) the electric task of guarantor starts, data acquisition is carried out to electric user is protected, under each Switch State Combination in Power Systems, sequentially change measurement
The load of point makes it traverse minimum load and highest load, and the current value correlation and voltage value between record measurement point are mutual
Relationship establishes current relationship function and voltage relationship function；
B) during protecting electric task, detection switch combinations of states, each measurement point voltage value and current value, by some measurement point institute
Current value and voltage value are surveyed, is derived with by current relationship function and voltage relationship function and other measurement point current values and voltage value
Predicted current value and voltage value comparison out, issue early warning if being more than given threshold if current value difference or voltage value difference.
9. the electric user's power distribution room fault early warning method of a kind of guarantor according to claim 8, which is characterized in that
The current value difference calculation method are as follows:Wherein i is the measurement point for participating in calculating, qiFor measurement
The current value that point detects, Q are current relationship function, P 'iFor the set of remaining measurement point in addition to i；
The voltage value difference calculation method are as follows:Wherein i is the measurement point for participating in calculating, viFor measurement
The voltage value that point detects, V are voltage relationship function, P 'iFor the set of remaining measurement point in addition to i.
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| CN101826756A (en) * | 2010-04-30 | 2010-09-08 | 广州合立正通信息网络集成有限公司 | System and method for realizing fault positioning of power distributing substation equipment |
| CN202334906U (en) * | 2011-12-08 | 2012-07-11 | 湖州电力局 | Environment variable remote monitoring communication system based on general packet radio service (GPRS) short message platform for underground power distribution room |
| CN103840552A (en) * | 2014-02-14 | 2014-06-04 | 深圳供电局有限公司 | Power distribution room monitoring method and system |
| CN104184214A (en) * | 2014-09-12 | 2014-12-03 | 四川省科本哈根能源科技有限公司 | Monitoring method for building electrical loads |
| CN104459469A (en) * | 2014-12-09 | 2015-03-25 | 国家电网公司 | Fault detection technology for distribution circuit |
| CN110632439A (en) * | 2019-09-29 | 2019-12-31 | 国网河南省电力公司电力科学研究院 | Power distribution network single-phase earth fault diagnosis technology based on synchronous waveform and association rule |
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