CN109167342A - Lightning protection monitoring device - Google Patents
Lightning protection monitoring device Download PDFInfo
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- CN109167342A CN109167342A CN201810937011.0A CN201810937011A CN109167342A CN 109167342 A CN109167342 A CN 109167342A CN 201810937011 A CN201810937011 A CN 201810937011A CN 109167342 A CN109167342 A CN 109167342A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 61
- 230000009471 action Effects 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 12
- 230000011664 signaling Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 208000025274 Lightning injury Diseases 0.000 description 20
- 238000012423 maintenance Methods 0.000 description 7
- 230000008439 repair process Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000012512 characterization method Methods 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 208000032750 Device leakage Diseases 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/005—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection avoiding undesired transient conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of lightning protection monitoring devices, including branch units and monitor supervision platform；Branch units is electrically connected with monitor supervision platform；Branch units includes backup protection unit, the first current sensor, lightning protection device monitoring unit；Backup protection unit is connected between lightning protection device and power supply system, the ground terminal ground of lightning protection device；First current sensor is set between backup protection unit and the connecting terminal of lightning protection device；Lightning protection device monitoring unit is for receiving leakage data；Monitor supervision platform is for leakage data to be compared with the first leakage current threshold；Backup protection unit is used to enter off-state after receiving disconnection control signal.The present invention can monitor the failure procedure of lightning protection device, send pre-warning signal or alarm signal according to the state of lightning protection device, actively disconnect the lightning protection device that performance deteriorates from electric power loop, safe monitoring scheme is provided for lightning protection.
Description
Technical field
The invention belongs to lightning-protection engineering field more particularly to a kind of lightning protection monitoring devices.
Background technique
When lightning protection device (another to claim: surge protector, abbreviation SPD) is installed on the line, a kind of intelligent, operation peace is needed
Full lightning protection monitoring system.
SPD is a kind of electric security protector product, but when providing surge protection for equipment, the Anti-surging ability of itself
Can be reduced with the increase of action frequency, eventually due to thunder energy overload and cause to fail, SPD failure after there may be
Phenomena such as earth leakage current (also known as leakage current) becomes larger, is short-circuit or even on fire.Since the lightning protected management system of tradition is to SPD
Failure procedure can not be controlled, although SPD itself has hot release unit, occurring, electrical power system transient failure is (temporary excessively electric
Press failure, abbreviation TOV failure) when, the short-circuit breakdown point of SPD can not determine, will lead to heat and be detached from failure, so SPD is produced
(GB18802.1) permission is mounted with to prevent the overcurrent protection of SPD short circuit in the upstream SPD in product standard, but due to current
Standby overcurrent protection technology can not be fully solved can bear big lightning stroke dash current (such as 40-100 kilo-ampere, 8/20
Microsecond), and can quickly be disconnected in small power frequency leakage current.SPD deterioration in engineer application, which leaks (short circuit) electric current, is
One wider range, can be from several microamperes to several amperes or more, and SPD backup protection unit can only cut off ampere in many cases
The power current of rank cannot disconnect all short circuit currents in time, SPD is caused to burn, and cause in power supply system power supply
It is disconnected.
Summary of the invention
The technical problem to be solved by the present invention is to overcome lightning protection device in the prior art cannot monitoring SPD failure
The defect of journey provides a kind of lightning protection monitoring device.
The present invention solves above-mentioned technical problem by the following technical programs:
A kind of lightning protection monitoring device, comprising: branch units and monitor supervision platform；Branch units is electrically connected with monitor supervision platform
It connects；Branch units includes backup protection unit, the first current sensor, lightning protection device monitoring unit；
Backup protection unit is connected between lightning protection device and power supply system, the ground terminal ground of lightning protection device；
Backup protection unit includes being connected to and disconnecting two states, when backup protection unit is in connected state, lightning protection
The connecting terminal of device is electrically connected with power supply system；When backup protection unit is in an off state, the connecting terminal of lightning protection device with
Power supply system disconnects；
Lightning protection device monitoring unit is electrically connected with the state control terminal of backup protection unit, the first current sensor respectively；
First current sensor is set between backup protection unit and the connecting terminal of lightning protection device, for measuring lightning protection device
Leakage data, and for lightning protection device monitoring unit send leakage data；
Lightning protection device monitoring unit is used to send leakage data to monitor supervision platform for receiving leakage data；
Monitor supervision platform is used for big in leakage data for leakage data to be compared with the first leakage current threshold
It is sent when the first leakage current threshold to lightning protection device monitoring unit and disconnects control signal；
Lightning protection device monitoring unit, which is also used to send to the state control terminal of backup protection unit, disconnects control signal；Standby is protected
Shield unit is used to enter off-state after receiving disconnection control signal.
Preferably, lightning protection monitoring device further includes the second current sensor；Second current sensor and lightning protection device are supervised
Control unit electrical connection；
Second current sensor is set between the ground terminal of lightning protection device and ground terminal, for measuring the lightning stroke of lightning protection device
Current data, and for sending thunder-strike current data to lightning protection device monitoring unit；
Lightning protection device monitoring unit is also used to receive thunder-strike current data, and for sending thunder-strike current number to monitor supervision platform
According to monitor supervision platform is used for thunder-strike current data and thunder-strike current threshold value comparison, and be used for for receiving thunder-strike current data
Count value is added 1 when thunder-strike current data are greater than thunder-strike current threshold value, and for when count value reaches default Safe Times
It is sent to lightning protection device monitoring unit and disconnects control signal.
Preferably, lightning protection monitoring device further includes alarm unit, alarm unit is electrically connected with monitor supervision platform；
Monitor supervision platform is also used to receive leakage data, and for comparing leakage data and the second leakage current threshold
Compared with, and for sending alarm control signal, the second electric leakage to alarm unit when leakage data is greater than the second leakage current threshold
Threshold value is flowed less than the first leakage current threshold；The first leakage current threshold has not yet been reached when leakage data reaches the second leakage current threshold
When value, characterization lightning protection device has been deteriorated to a certain extent, it is necessary to issue warning signal, user is reminded to overhaul lightning protection device
Maintenance, avoids lightning protection device performance from continuing to deteriorate.But lightning protection device is not yet deteriorated to the journey for needing to disconnect backup protection unit at this time
Degree.
Alarm unit after receiving alarm control signal for alarming.
Preferably, lightning protection device includes remote signalling interface, lightning protection device monitoring unit is also electrically connected with remote signalling interface, lightning protection device monitoring
Unit is also used to from the offline indication signal of remote signalling interface lightning protection device, and the offline indication signal of lightning protection device is for characterizing at lightning protection device
In off-line state；
Lightning protection device monitoring unit is also used to send the offline indication signal of lightning protection device to monitor supervision platform；
Monitor supervision platform is also used to after receiving the offline alarm signal of lightning protection device send alarm control signal to alarm unit.
Preferably, lightning protection device monitoring unit is electrically connected with monitor supervision platform by a kind of RS-485 (communication interface technique) module
It connects.
Preferably, the measurement range of the first current sensor is 0.1 milliampere to 50 milliamperes.
Preferably, the measurement range of the second current sensor is 500 peaces to 100 kilo-amperes.
Preferably, the quantity of branch units be it is multiple, multiple branch units are electrically connected with monitor supervision platform respectively.
Preferably, backup protection unit includes action command unit, switching molding group；Command unit is electrically connected with switching molding group
It connects；
Switching molding group includes command reception end, the first terminals and the second terminals, switching molding group further include motor and with
The telegraph key of motor drive connection, for driving telegraph key closure or openness, motor is electrically connected motor with command reception end；Telegraph key is opened
When, the first terminals are disconnected with the second terminals, and when telegraph key is closed, the first terminals are connect with the second terminals；First
Terminals are electrically connected with power supply system, and the second terminals are electrically connected with lightning protection device；
State control terminal of the input terminal of action command unit as backup protection unit, action command unit is for connecing
It is instructed after receiving disconnection control signal to command reception end sending action.
Preferably, lightning protection monitoring device further includes alarm unit, alarm unit is electrically connected with monitor supervision platform；
Monitor supervision platform is also used to receive leakage data, and for comparing leakage data and third leakage current threshold
Compared with, and for sending alarm control signal, third electric leakage to alarm unit when leakage data is less than third leakage current threshold
Threshold value is flowed less than the first leakage current threshold；Alarm unit after receiving alarm control signal for alarming.Third leakage current threshold
Value is the value of a very little, is much smaller than 100 microamperes.When leakage data is less than third leakage current value, show do not had on SPD
There is leakage current to pass through, that is, the circuit of the first current sensor detection is opened a way.The reason of open circuit may be back-up protection
Unit disconnects, it is also possible to be in off-line state (for example, lightning protection device tripping) for lightning protection device, it is also possible to for other portions on the route
Existing exception is separated to open a way.Once opening a way, lightning protection device cannot play the role of lightning protection, and therefore, alarm unit is receiving
It alarms after to alarm control signal, to remind operation maintenance personnel to carry out repair and maintenance.There is abnormal hair in other parts on the route
The probability very little of raw open circuit, and lightning protection device is in off-line state and can be characterized by the offline indication signal of lightning protection device, therefore, the route
Upper the reason of opening a way greater probability is backup protection unit disconnection.So alarm signal at this time can be used as standby guarantor
Protect the reference of location mode.
The positive effect of the present invention is that: lightning protection monitoring device of the invention passes through monitoring SPD leakage current
Mode, to monitor the deterioration failure mistake of SPD backup protection unit connection status and protective loop conducting wire connection status and SPD
Journey；Pre-warning signal or alarm signal are sent according to the state of SPD, and can actively disconnect the SPD of performance deterioration, it is really real
Existing intelligentized monitoring and security risk exclude, and safe monitoring scheme is provided for lightning protection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the lightning protection monitoring device of a preferred embodiment of the invention.
Fig. 2 is the waveform diagram of the internal signal of the lightning protection monitoring device of a preferred embodiment of the invention.
Fig. 3 is that the structure comprising multiple branch units of the lightning protection monitoring device of a preferred embodiment of the invention is shown
It is intended to.
Specific embodiment
The present invention is further illustrated below by a preferred embodiment, but does not therefore limit the present invention to the reality
It applies among a range.
The present embodiment provides a kind of lightning protection monitoring devices, as shown in Figure 1, the lightning protection monitoring device includes: point
Zhi Danyuan 101 and monitor supervision platform 102；Branch units 101 is electrically connected with monitor supervision platform 102；Branch units 101 includes back-up protection
Unit, the first current sensor, lightning protection device monitoring unit；Backup protection unit is connected between lightning protection device 2 and power supply system 3,
The ground terminal ground of lightning protection device 2.Power supply system is the firewire (L line) or zero curve (N line) of electric system.
Backup protection unit includes being connected to and disconnecting two states, when backup protection unit is in connected state, lightning protection
The connecting terminal of device is electrically connected with power supply system；When backup protection unit is in an off state, the connecting terminal of lightning protection device with
Power supply system disconnects.
Lightning protection device monitoring unit is electrically connected with the state control terminal of backup protection unit, the first current sensor respectively；The
One current sensor is set between backup protection unit and the connecting terminal of lightning protection device, for measuring the electric leakage fluxion of lightning protection device
According to, and for sending leakage data to lightning protection device monitoring unit；Lightning protection device monitoring unit is used in combination for receiving leakage data
In to monitor supervision platform send leakage data；Monitor supervision platform realizes that operation has software program using commercially available computer, for that will leak
Current data is compared with the first leakage current threshold, and is used for when leakage data is greater than the first leakage current threshold to lightning protection
Device monitoring unit, which is sent, disconnects control signal；Lightning protection device monitoring unit is also used to send to the state control terminal of backup protection unit
Disconnect control signal；Backup protection unit is used to enter off-state after receiving disconnection control signal.
In the present embodiment, referring to Fig.1, backup protection unit includes action command unit, switching molding group；Command unit with
The electrical connection of switching molding group；Switching molding group includes command reception end, the first terminals and the second terminals, and switching molding group further includes electricity
Machine 1011 and the telegraph key K connecting with motor drive, for driving telegraph key closure or openness, motor is electrically connected motor with command reception end
It connects；When telegraph key is opened, the first terminals are disconnected with the second terminals, when telegraph key is closed, the first terminals and the second wiring
End connection；First terminals are electrically connected with power supply system, and the second terminals are electrically connected with lightning protection device；The input of action command unit
The state control terminal as backup protection unit is held, action command unit is used to connect after receiving disconnection control signal to instruction
The instruction of receiving end sending action.
Lightning protection device 2 includes remote signalling interface 201, and lightning protection device monitoring unit is also electrically connected with remote signalling interface 201, lightning protection device monitoring
Unit is also used to from the offline indication signal of remote signalling interface lightning protection device, and the offline indication signal of lightning protection device is for characterizing at lightning protection device
In off-line state；Lightning protection device monitoring unit is also used to send the offline indication signal of lightning protection device to monitor supervision platform；Monitor supervision platform is also used
In after receiving the offline alarm signal of lightning protection device to alarm unit send alarm control signal.When lightning protection device is online
When, lightning protection device sends high level signal to lightning protection device monitoring unit by remote signalling interface 201, and characterization lightning protection device is in threadiness
State；When lightning protection device thread off, lightning protection device by remote signalling interface 201 to lightning protection device monitoring unit send low level signal (lightning protection device from
Line indication signal), characterization lightning protection device is in off-line state.Lightning protection device monitoring unit is after receiving the offline indication signal of lightning protection device
The offline indication signal of lightning protection device is sent to monitor supervision platform；Monitor supervision platform is single to alarm after receiving the offline alarm signal of lightning protection device
Member sends alarm control signal.User can carry out repair and maintenance to lightning protection device in time after receiving the alarm of alarm unit.
Referring to Fig.1, lightning protection device monitoring unit is electrically connected with monitor supervision platform by RS-485 module 103, and lightning protection device monitoring is single
Member is carried out data transmission with monitor supervision platform by RS-485 module 103.
Telegraph key K default is in closed state, and lightning protection device has leakage current to flow through.With the increase of service life, lightning protection device
Leakage current can be gradually increased, when leakage data is greater than the first leakage current threshold, then it is assumed that leakage current has exceeded safety value, prevents
Thunder device has deteriorated, and monitor supervision platform 102 is then sent to lightning protection device monitoring unit by RS485 module and disconnects control signal；Lightning protection device
Monitoring unit is sent to action command unit disconnects control signal；After action command unit receives disconnection control signal, to electricity
1011 sending action of machine instructs, and telegraph key K rotation is driven after electric motor starting, then telegraph key K is disconnected, then lightning protection device and power supply system
It disconnects, there is no leakage currents to flow through in lightning protection device, excessive so as to avoid due to leakage current and accident occurs.
First current sensor realizes that the current sensor is monitored in the lightning protection and filled using commercially available current sensor
Connection and usage mode in setting are that those skilled in the art are clear.The preferable measurement range of the current sensor is 0.1
Milliampere is to 50 milliamperes, and for exceeding the electric current of measurement range, the first current sensor is not responded.For example, the first current sense
Device is set between power supply system and the connecting terminal of lightning protection device, for measuring the size for the electric current released by lightning protection device.But
Be, when lightning stroke incident occurs, have thunder-strike current from power supply system by lightning protection device to greatly releasing, but very because of thunder-strike current
Greatly, far beyond the measurement range of the first current sensor, the first current sensor will not send electric current number to monitor supervision platform 102
According to.So when lightning stroke incident occurs, although having flowed through very big electric current on lightning protection device, because being that normal lightning protection is put
Electronic work, the lightning protection monitoring device of the present embodiment not will be considered that lightning protection device fails, will not disconnect backup protection unit.
Lightning protection device monitoring unit is realized using PLC (programmable controller).In order to improve safety, the lightning protection of the present embodiment
Protection monitoring device also has early warning mechanism.Referring to Fig.1, which further includes alarm unit 104, and alarm is single
Member is electrically connected with monitor supervision platform；Monitor supervision platform 102 is used for for receiving leakage data by leakage data and the second electric leakage
Stream threshold value is compared, and for sending controlling alarm letter to alarm unit when leakage data is greater than the second leakage current threshold
Number, the second leakage current threshold is set by user according to the initial leakage current value of SPD less than the first leakage current threshold, the second leakage current threshold
It sets.When the performance of lightning protection device does not deteriorate into the state of close failure still, the lightning protection monitoring device of the present embodiment is i.e. logical
It crosses alarm unit 104 to issue warning signal, reminds user to carry out repair and maintenance to lightning protection device, lightning protection device performance is avoided to continue to dislike
Change.Leakage current parameter is compared by monitor supervision platform 102 with the first leakage current threshold simultaneously, and for being greater than in leakage data
SPD, which is sent, to alarm unit 104 when the first leakage current threshold deteriorates alarm signal completely.Alarm unit is used to receive alarm
It alarms after control signal, alarm unit 104 can be realized using alarm lamp, buzzer etc..
The lightning protection monitoring device of the present embodiment also has backup protection unit status monitoring function.Monitor supervision platform 102
For receiving leakage data, and for leakage data to be compared with third leakage current threshold, and in leakage current
Alarm control signal is sent to alarm unit when data are less than third leakage current threshold, third leakage current threshold is less than the second electric leakage
Flow threshold value.The leakage current normal value of lightning protection device is generally in 100 microamperes of magnitudes, and third leakage current threshold is the value of a very little, far
Less than 100 microamperes.In the present embodiment, third leakage current threshold is 10 microamperes.In other optional embodiments of the invention
In, third leakage current threshold can be rationally arranged according to actual needs.When leakage data is less than third leakage current value, show
Pass through without leakage current on SPD, that is, the circuit of the first current sensor detection is opened a way.It the reason of open circuit, may
For backup protection unit disconnection, it is also possible to be in off-line state (for example, lightning protection device tripping) for lightning protection device, it is also possible to be the route
On other parts there is abnormal open a way.Once opening a way, lightning protection device cannot play the role of lightning protection, therefore, alarm
Unit is alarmed after receiving alarm control signal, to remind operation maintenance personnel to carry out repair and maintenance.Other parts on the route
There is the abnormal probability very little opened a way, and lightning protection device is in off-line state and can be characterized by the offline indication signal of lightning protection device,
Therefore, the reason of opening a way on route greater probability is backup protection unit disconnection.So alarm signal at this time can be with
Reference as backup protection unit state.When the telegraph key K of backup protection unit is disconnected, the lightning protection monitoring of the present embodiment
Device passes through alarm unit 104 and issues alarm signal.
Lightning protection monitoring device further includes the second current sensor；Second current sensor and lightning protection device monitoring unit electricity
Connection；Second current sensor is set between the ground terminal of lightning protection device and ground terminal, for measuring the lightning stroke electricity of lightning protection device
Flow data, and for sending thunder-strike current data to lightning protection device monitoring unit；Lightning protection device monitoring unit is also used to receive lightning stroke electricity
Flow data, and for sending thunder-strike current data to monitor supervision platform 102, monitor supervision platform 102 is used to receive thunder-strike current data, and
For by thunder-strike current data and thunder-strike current threshold value comparison, and for raw when thunder-strike current data are greater than thunder-strike current threshold value
At lightning stroke incident indication signal, for characterizing lightning stroke incident occurs for lightning stroke incident indication signal；There is soft operation on monitor supervision platform 102
Count value is added 1 after there is lightning stroke incident indication signal by part program, and for when count value reaches default Safe Times
It is sent to lightning protection device monitoring unit and disconnects control signal.
Second current sensor realizes that the current sensor is monitored in the lightning protection and filled using commercially available current sensor
The connection and usage mode set are that those skilled in the art are clear.The measurement range of the current sensor is preferably 500 peaces extremely
100 kilo-amperes, for exceeding the current value of the measurement range, which is not responded.For example, when lightning protection device has leakage current
When passing through, since the current value of leakage current is far smaller than the measurement range of the second current sensor, the second current sensor not to
Monitor supervision platform 102 transmits signal.Referring to Fig. 2, when thunder-strike current data Is is greater than thunder-strike current threshold value Ist, monitor supervision platform 102
Lightning stroke incident indication signal Sig is generated, which has occurred a lightning stroke incident, thunder for characterizing
Hitting event indication signal is positive pulse signal, each positive pulse signal characterizes and a lightning stroke incident has occurred.Referring to Fig. 2, often
As lightning stroke incident indication signal Sig, count value CN is added 1 by the software program that monitor supervision platform 102 is run.When count value CN reaches pre-
If when Safe Times NS, illustrating that lightning protection device has gone through NS lightning stroke incident, performance has been unsatisfactory for safety requirements, leakage
Electric current has the risk more than secure threshold.At this point, monitor supervision platform 102 is sent by RS485 module to lightning protection device monitoring unit
The disconnection of high level controls signal SW.Default Safe Times NS can be arranged according to national standard, can also be according to the demand of being used for
Setting.
In order to carry out, perfect data are saved and statistics, monitor supervision platform 102 are also used to calculate thunder according to thunder-strike current data
Peak value is hit, and draws lightning waveform, and calculates lightning energy magnitude.Monitor supervision platform is also used to record the time that lightning stroke occurs.
Referring to Fig. 3, in order to be monitored to the lightning protection device for being set to different places, which includes more
A branch units 101, multiple branch units 101 are respectively arranged at multiple and different places, are monitored respectively to lightning protection device.It is anti-
Leakage data that thunder device monitoring unit will acquire, thunder-strike current data, number of lightning strokes (count value of lightning stroke counter), lightning stroke
The data such as time, lightning stroke peak value, lightning waveform, the lightning energy magnitude of generation are transmitted to monitor supervision platform 102, and monitor supervision platform 102 can
To realize the real-time monitoring to distributed lightning protection device system.
Although specific embodiments of the present invention have been described above, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
Under the premise of from the principle and substance of the present invention, many changes and modifications may be made, but these are changed
Protection scope of the present invention is each fallen with modification.
Claims (10)
1. a kind of lightning protection monitoring device characterized by comprising branch units and monitor supervision platform；The branch units with
The monitor supervision platform electrical connection；The branch units includes backup protection unit, the first current sensor, lightning protection device monitoring list
Member；
The backup protection unit is connected between lightning protection device and power supply system, the ground terminal ground of the lightning protection device；
The backup protection unit includes being connected to and disconnecting two states, when the backup protection unit is in connected state,
The connecting terminal of the lightning protection device is electrically connected with the power supply system；When the backup protection unit is in an off state, institute
The connecting terminal and the power supply system for stating lightning protection device disconnect；
The lightning protection device monitoring unit is electrically connected with the state control terminal of the backup protection unit, the first current sensor respectively
It connects；
First current sensor is set between the backup protection unit and the connecting terminal of the lightning protection device, for surveying
The leakage data of the lightning protection device is measured, and for sending the leakage data to the lightning protection device monitoring unit；
The lightning protection device monitoring unit is used to send the electric leakage to the monitor supervision platform for receiving the leakage data
Flow data；
The monitor supervision platform is used for for the leakage data to be compared with the first leakage current threshold in the electric leakage
It is sent when flow data is greater than first leakage current threshold to the lightning protection device monitoring unit and disconnects control signal；
The lightning protection device monitoring unit is also used to send the disconnection control letter to the state control terminal of the backup protection unit
Number；The backup protection unit is used to enter off-state after receiving the disconnection control signal.
2. lightning protection monitoring device as described in claim 1, which is characterized in that the lightning protection monitoring device further includes
Second current sensor；Second current sensor is electrically connected with the lightning protection device monitoring unit；
Second current sensor is set between the ground terminal of the lightning protection device and the ground terminal, described for measuring
The thunder-strike current data of lightning protection device, and for sending the thunder-strike current data to the lightning protection device monitoring unit；
The lightning protection device monitoring unit is also used to receive the thunder-strike current data, and for described in monitor supervision platform transmission
Thunder-strike current data, the monitor supervision platform for receiving the thunder-strike current data, and for by the thunder-strike current data with
Thunder-strike current threshold value comparison, and for count value to be added 1 when the thunder-strike current data are greater than the thunder-strike current threshold value, and
Signal is controlled for sending the disconnection to the lightning protection device monitoring unit when the count value reaches default Safe Times.
3. lightning protection monitoring device as described in claim 1, which is characterized in that the lightning protection monitoring device further includes
Alarm unit, the alarm unit are electrically connected with the monitor supervision platform；
The monitor supervision platform is also used to receive the leakage data, and is used for the leakage data and the second leakage current threshold
Value is compared, and is reported for sending when the leakage data is greater than second leakage current threshold to the alarm unit
Alert control signal, second leakage current threshold are less than first leakage current threshold；
The alarm unit after receiving the alarm control signal for alarming.
4. lightning protection monitoring device as claimed in claim 3, which is characterized in that the lightning protection device includes remote signalling interface, institute
It states lightning protection device monitoring unit to be also electrically connected with the remote signalling interface, the lightning protection device monitoring unit is also used to from the remote signalling interface
The offline indication signal of lightning protection device is received, the offline indication signal of lightning protection device is in off-line state for characterizing the lightning protection device；
The lightning protection device monitoring unit is also used to send the offline indication signal of lightning protection device to the monitor supervision platform；
Described in the monitor supervision platform is also used to after receiving the offline alarm signal of the lightning protection device send to the alarm unit
Alarm control signal.
5. lightning protection monitoring device as described in claim 1, which is characterized in that the lightning protection device monitoring unit and the prison
Control platform is electrically connected by RS-485 module.
6. lightning protection monitoring device as described in claim 1, which is characterized in that the measurement model of first current sensor
Enclose is 0.1 milliampere to 50 milliamperes.
7. lightning protection monitoring device as claimed in claim 2, which is characterized in that the measurement model of second current sensor
It encloses for 500 peaces to 100 kilo-amperes.
8. lightning protection monitoring device as described in claim 1, which is characterized in that the quantity of the branch units be it is multiple,
Multiple branch units are electrically connected with the monitor supervision platform respectively.
9. lightning protection monitoring device as described in claim 1, which is characterized in that the backup protection unit includes that movement refers to
Enable unit, switching molding group；Described instruction unit is electrically connected with the switching molding group；
The switching molding group includes command reception end, the first terminals and the second terminals, and the switching molding group further includes motor
The telegraph key being connect with the motor drive, the motor for driving the telegraph key closure or openness, the motor with it is described
The electrical connection of command reception end；When the telegraph key is opened, first terminals are disconnected with second terminals, the electricity
When key is closed, first terminals are connect with second terminals；First terminals are electrically connected with the power supply system
It connects, second terminals are electrically connected with the lightning protection device；
State control terminal of the input terminal of the action command unit as the backup protection unit, the action command unit
For being instructed after receiving the disconnection control signal to described instruction receiving end sending action.
10. lightning protection monitoring device as described in claim 1, which is characterized in that the lightning protection monitoring device also wraps
Alarm unit is included, the alarm unit is electrically connected with the monitor supervision platform；
The monitor supervision platform is also used to receive the leakage data, and is used for the leakage data and third leakage current threshold
Value is compared, and is reported for sending when the leakage data is less than the third leakage current threshold to the alarm unit
Alert control signal, the third leakage current threshold are less than first leakage current threshold；
The alarm unit after receiving the alarm control signal for alarming.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110336263A (en) * | 2019-07-31 | 2019-10-15 | 安徽科越控制技术有限公司 | A kind of overvoltage controlling terminal and it is based on equipotential distributed management system and method |
| CN113552427A (en) * | 2021-06-02 | 2021-10-26 | 广东东田实业有限公司 | Detection circuit of remote signaling detection device |
| CN113865649A (en) * | 2021-09-30 | 2021-12-31 | 深圳远征技术有限公司 | Lightning protection device degradation degree monitoring device, system and method |
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| CN101102055A (en) * | 2006-07-07 | 2008-01-09 | 王勇 | System for monitoring the surge protector based on distribution line and its method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110336263A (en) * | 2019-07-31 | 2019-10-15 | 安徽科越控制技术有限公司 | A kind of overvoltage controlling terminal and it is based on equipotential distributed management system and method |
| CN113552427A (en) * | 2021-06-02 | 2021-10-26 | 广东东田实业有限公司 | Detection circuit of remote signaling detection device |
| CN113865649A (en) * | 2021-09-30 | 2021-12-31 | 深圳远征技术有限公司 | Lightning protection device degradation degree monitoring device, system and method |
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