CN208690925U - Lightning protection monitoring device - Google Patents
Lightning protection monitoring device Download PDFInfo
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- CN208690925U CN208690925U CN201821325624.0U CN201821325624U CN208690925U CN 208690925 U CN208690925 U CN 208690925U CN 201821325624 U CN201821325624 U CN 201821325624U CN 208690925 U CN208690925 U CN 208690925U
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Abstract
The utility model provides a kind of lightning protection monitoring device, comprising: 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；Monitor supervision platform includes first comparator and control signal output unit, and first comparator is electrically connected with control signal output unit；First current sensor is set between backup protection unit and the connecting terminal of lightning protection device；Signal output unit is controlled to be used to after receiving the first leakage current alarm signal send disconnection control signal to lightning protection device monitoring unit；Backup protection unit is used to enter off-state after receiving disconnection control signal.The utility model 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 utility model belongs to lightning-protection engineering field more particularly to a kind of lightning protection monitoring device.
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.
Utility model content
The technical problems to be solved in the utility model be overcome lightning protection device in the prior art cannot monitoring SPD mistake
The defect of effect process provides a kind of lightning protection monitoring device.
The utility model 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；Monitor supervision platform includes the first ratio
Compared with device and control signal output unit, first comparator is electrically connected with control signal output 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；
First comparator is used for for leakage data to be compared with the first leakage current threshold in leakage data
The first leakage current alarm signal is exported to control signal output unit when greater than the first leakage current threshold；
Signal output unit is controlled to be used to send after receiving the first leakage current alarm signal to lightning protection device monitoring unit
Disconnect 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；Monitor supervision platform further include lightning stroke counter,
Second comparator, lightning stroke counter are electrically connected with the second comparator；Second current sensor is electrically connected with lightning protection device monitoring unit；
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 the second comparator is used to for thunder-strike current data and thunder-strike current threshold value comparison being used in combination for receiving thunder-strike current data
In exporting lightning stroke incident indication signal when thunder-strike current data are greater than thunder-strike current threshold value, lightning stroke incident indication signal is used for table
It levys raw lightning stroke incident；
Lightning stroke counter is used to after receiving lightning stroke incident indication signal adding count value into 1, and for reaching in count value
Number of lightning strokes alarm signal is issued to control signal output unit when to default Safe Times, control signal output unit is also used to
It is sent after receiving number of lightning strokes alarm signal to lightning protection device monitoring unit and disconnects control signal.
Preferably, lightning protection monitoring device further includes alarm unit, monitor supervision platform further includes third comparator, third ratio
It is electrically connected compared with device with control signal output unit, alarm unit is electrically connected with control signal output unit；
Third comparator is used to compare leakage data and the second leakage current threshold for receiving leakage data
Compared with, and for exporting the alarm of the second leakage current to control signal output unit when leakage data is greater than the second leakage current threshold
Signal, the second leakage current threshold is less than the first leakage current threshold；It is not yet reached when leakage data reaches the second leakage current threshold
When to the first leakage current threshold, characterization lightning protection device has been deteriorated to a certain extent, it is necessary to be issued warning signal, be reminded user couple
Lightning protection device carries out repair and maintenance, and lightning protection device performance is avoided to continue to deteriorate.But lightning protection device, which is not yet deteriorated to, at this time needs to protect standby
Protect the degree that unit disconnects.
Control signal output unit is also used to after receiving the second leakage current alarm signal send to alarm unit and alarm
Control signal；
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 control signal output unit；
Control signal output unit is also used to after receiving the offline alarm signal of lightning protection device send to alarm unit and alarm
Control signal.
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, monitor supervision platform further includes the 4th comparator, the 4th ratio
It is electrically connected compared with device with control signal output unit, alarm unit is electrically connected with control signal output unit；
4th comparator is used to compare leakage data and third leakage current threshold for receiving leakage data
Compared with, and for being alerted when leakage data is less than third leakage current threshold to control signal output unit output third leakage current
Signal, third leakage current threshold is less than the first leakage current threshold；
Control signal output unit is also used to after receiving third leakage current alarm signal send to alarm unit and alarm
Control signal；
Alarm unit after receiving alarm control signal for alarming.
Third leakage current threshold is the value of a very little, is much smaller than 100 microamperes.When leakage data is less than third leakage current
When value, show to pass through without leakage current on SPD, that is, the circuit of the first current sensor detection is opened a way.Open circuit
Reason, may disconnect for backup protection unit, it is also possible to it is in off-line state (for example, lightning protection device tripping) for lightning protection device, it can also
Can occur abnormal open a way for the other parts on the route.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.On the route
There is the abnormal probability very little opened a way in other parts, and lightning protection device is in off-line state and can indicate to believe offline by lightning protection device
Number characterization, therefore, the reason of opening a way on the route greater probability be that backup protection unit disconnects.So alarm at this time
Signal can be used as the reference of backup protection unit state.
The positive effect of the utility model is: the lightning protection monitoring device of the utility model passes through monitoring SPD
The mode of leakage current, to monitor the bad of SPD reserve protection connection status and protective loop conducting wire connection status and SPD
Change failure procedure；Pre-warning signal or alarm signal are sent according to the state of SPD, and can actively disconnect performance deterioration
SPD really realizes that intelligentized monitoring and security risk exclude, 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 utility model.
Fig. 2 is the structural representation of the first comparator of the lightning protection monitoring device of a preferred embodiment of the utility model
Figure.
The structural representation of second comparator of the lightning protection monitoring device of one preferred embodiment of Fig. 3 the utility model
Figure.
The waveform diagram of the internal signal of the lightning protection monitoring device of one preferred embodiment of Fig. 4 the utility model.
The structure comprising multiple branch units of the lightning protection monitoring device of one preferred embodiment of Fig. 5 the utility model
Schematic diagram.
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
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；Monitor supervision platform 102 includes that first comparator and control signal output are single
Member, first comparator are electrically connected with control signal output unit；Backup protection unit be connected to lightning protection device 2 and power supply system 3 it
Between, 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 102 send leakage data；First comparator is used to carry out leakage data and the first leakage current threshold
Compare, and is accused for exporting the first leakage current to control signal output unit when leakage data is greater than the first leakage current threshold
Alert signal；It controls signal output unit and is used to send after receiving the first leakage current alarm signal to lightning protection device monitoring unit and break
Open 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；Afterwards
Standby protection location 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 control signal output unit；Control
Signal output unit is also used to after receiving the offline alarm signal of lightning protection device send alarm control signal to alarm unit.When anti-
When thunder device is online, lightning protection device sends high level signal to lightning protection device monitoring unit by remote signalling interface 201, and characterization is anti-
Thunder device is online；When lightning protection device is threaded off, lightning protection device sends low level to lightning protection device monitoring unit by remote signalling interface 201
Signal (the offline indication signal of lightning protection device), characterization lightning protection device are in off-line state.Lightning protection device monitoring unit is receiving lightning protection device
The offline indication signal of lightning protection device is sent to control signal output unit after offline indication signal；Control signal output unit is receiving
Alarm control signal is sent to alarm unit after to the offline alarm signal of lightning protection device.User is in the alarm for receiving alarm unit
Afterwards, repair and maintenance can be carried out to lightning protection device in time.
Referring to Fig.1, lightning protection device monitoring unit is electrically connected with monitor supervision platform 102 by RS-485 module 103, lightning protection device monitoring
Unit is carried out data transmission with monitor supervision platform 102 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 first comparator then exports the first leakage current alarm signal to control signal output unit.Control signal output
Unit is sent to lightning protection device monitoring unit by RS485 module after receiving the first leakage current alarm signal and disconnects control letter
Number；Lightning protection device monitoring unit is sent to action command unit disconnects control signal；Action command unit receives disconnection control letter
It after number, is instructed to 1011 sending action of motor, telegraph key K rotation is driven after electric motor starting, then telegraph key K is disconnected, then lightning protection device
It is disconnected with power supply system, 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 first comparator
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).The specific structure of first comparator such as Fig. 2 institute
Show, the first input end I11 of first comparator is connect with the first current sensor, and for receiving leakage data, first compares
Second input terminal I12 of device 1031 can be set for receiving the first leakage current threshold, the first leakage current threshold according to national standard
It sets, user can also be arranged according to demand.The output end O1 of first comparator 1031 is connect with control signal output unit 1032.
When leakage data is greater than the first leakage current threshold, first comparator 1031 is single to control signal output by its output end O1
Member 1032 exports the first leakage current alarm signal of high level, and otherwise, first comparator 1031 exports low electricity on output end O1
It is flat.It controls signal output unit to realize using combinational logic circuit, when control signal output unit receives the first of high level
When leakage current alarm signal, letter is controlled to the disconnection that the state control terminal of backup protection unit sends high level by its output end
Number；Backup protection unit enters off-state after the disconnection for receiving high level controls signal.
In order to improve safety, the lightning protection monitoring device of the present embodiment also has early warning mechanism.Referring to Fig.1, this is anti-
Thunder protection monitoring device further includes alarm unit 104, and monitor supervision platform 102 further includes third comparator, third comparator and control
Signal output unit electrical connection, alarm unit are electrically connected with control signal output unit；Third comparator is for receiving leakage current
Data, and for leakage data to be compared with the second leakage current threshold, and for being greater than the second leakage in leakage data
The second leakage current alarm signal is exported to control signal output unit when current threshold, the second leakage current threshold is less than the first electric leakage
Flow threshold value；Control signal output unit is also used to after receiving the second leakage current alarm signal send alarm control to alarm unit
Signal processed；Alarm unit after receiving alarm control signal for alarming.Second leakage current threshold is initial according to SPD by user
Leakage current value setting.Second leakage current threshold is less than the first leakage current threshold, that is, connects when the performance of lightning protection device does not deteriorate into still
When the state of near failure, the lightning protection monitoring device of the present embodiment passes through alarm unit 104 and issues warning signal, and reminds and uses
Family carries out repair and maintenance to lightning protection device, and lightning protection device performance is avoided to continue to deteriorate.First comparator is simultaneously by leakage current parameter and the
One leakage current threshold is compared, and sends characterization SPD to alarm unit when leakage data is greater than the first leakage current threshold
The alarm signal deteriorated completely.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.Referring to Fig.1, it monitors
Platform further includes the 4th comparator, and the 4th comparator is electrically connected with control signal output unit, and the 4th comparator is for receiving leakage
Current data, and for leakage data to be compared with third leakage current threshold, and be used in leakage data less than the
Third leakage current alarm signal is exported to control signal output unit when three leakage current thresholds；Control signal output unit is also used to
Alarm control signal is sent to alarm unit after receiving third leakage current alarm signal.Third leakage current threshold is less than second
Leakage current threshold.For the leakage current normal value of lightning protection device generally in 100 microamperes of magnitudes, third leakage current threshold is a very little
Value is much smaller than 100 microamperes.In the present embodiment, third leakage current threshold is 10 microamperes.Other in the utility model are optional
In embodiment, third leakage current threshold can be rationally arranged according to actual needs.When leakage data is less than third leakage current
When value, show to pass through without leakage current on SPD, that is, the circuit of the first current sensor detection is opened a way.Open circuit
Reason, may disconnect for backup protection unit, it is also possible to it is in off-line state (for example, lightning protection device tripping) for lightning protection device, it can also
Can occur abnormal open a way for the other parts on the route.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.On the route
There is the abnormal probability very little opened a way in other parts, and lightning protection device is in off-line state and can indicate to believe offline by lightning protection device
Number characterization, therefore, the reason of opening a way on the route greater probability be that backup protection unit disconnects.So alarm at this time
Signal can be used as the reference of backup protection unit state.When the telegraph key K of backup protection unit is disconnected, the lightning protection of the present embodiment
Protection monitoring device passes through alarm unit 104 and issues alarm signal.
Lightning protection monitoring device further includes the second current sensor；Monitor supervision platform 102 further includes lightning stroke counter, second
Comparator, lightning stroke counter are electrically connected with the second comparator；Second current sensor is electrically connected with lightning protection device monitoring unit；Second
Current sensor is set between the ground terminal of lightning protection device and ground terminal, for measuring the thunder-strike current data of lightning protection device, 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 data to monitor supervision platform 102, the second comparator is used to be struck by lightning for receiving thunder-strike current data
Current data and thunder-strike current threshold value comparison, and for exporting lightning stroke incident when thunder-strike current data are greater than thunder-strike current threshold value
For characterizing lightning stroke incident occurs for indication signal, lightning stroke incident indication signal；Lightning stroke counter is for receiving lightning stroke incident
Count value is added 1 after indication signal, and for issuing when count value reaches default Safe Times to control signal output unit
Number of lightning strokes alarm signal, control signal output unit are also used to after receiving number of lightning strokes alarm signal monitor to lightning protection device
Unit, which is sent, disconnects control signal.
When it is implemented, the structure of the second comparator as shown in figure 3, the first input end I21 of the second comparator 1034 with
The output end of second current sensor 105 is electrically connected, for receiving thunder-strike current data, the first input of the second comparator 1034
For receiving thunder-strike current threshold value, (thunder-strike current threshold value can be arranged end I22 according to national standard, can also be by user according to need
Ask setting).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
Second comparator 1034 transmits signal.Referring to Fig. 4, when thunder-strike current data Is is greater than thunder-strike current threshold value Ist, second compares
Device 1034 exports lightning stroke incident indication signal, which has occurred a lightning stroke incident for characterizing, and is struck by lightning
Event indication signal is positive pulse signal, that is, each positive pulse signal exported on the output end O2 of the second comparator 1034,
A lightning stroke incident has occurred in characterization.The output end O2 of second comparator is electrically connected with the input terminal CI of lightning stroke counter.Lightning stroke
Counter is realized using counter.Referring to Fig. 4, whenever the input terminal CI of lightning stroke counter receives a positive pulse signal, thunder
It hits counter and count value CN is added 1.When count value CN reaches default Safe Times NS, illustrate that lightning protection device has gone through NS times
Lightning stroke incident, performance have been unsatisfactory for safety requirements, and leakage current has the risk more than secure threshold.At this point, lightning stroke meter
Number device issues the number of lightning strokes alarm signal NW of high level to control signal output unit, and control signal output unit is receiving
After the number of lightning strokes alarm signal NW of high level, the disconnection control of high level is sent to lightning protection device monitoring unit by RS485 module
Signal SW processed.Default Safe Times NS can be arranged according to national standard, can also be arranged according to for demand.Lightning protection device monitoring
Unit realizes that particular circuit configurations can use a variety of implementations using hardware circuit, and lightning protection device monitoring unit can use
Circuit structure be that the waveform diagram of those skilled in the art according to Fig.4, can be realized.
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 102 is also used to record the time that lightning stroke occurs.
Referring to Fig. 5, 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 the foregoing describe specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely examples, and the protection scope of the utility model is defined by the appended claims.Those skilled in the art
Member can make numerous variations or be repaired to these embodiments under the premise of without departing substantially from the principles of the present invention and essence
Change, but these change and modification each fall within the protection scope of the utility model.
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 monitor supervision platform includes first comparator and control signal output unit, the first comparator and the control signal
Output unit electrical connection；
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 first comparator is used for for the leakage data to be compared with the first leakage current threshold in the leakage
The first leakage current alarm signal is exported to the control signal output unit when current data is greater than first leakage current threshold；
The control signal output unit is used to monitor after receiving the first leakage current alarm signal to the lightning protection device
Unit, which is sent, 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；The monitor supervision platform further includes lightning stroke counter, the second comparator, the lightning stroke counter and described the
The electrical connection of two comparators；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, second comparator are used for for receiving the thunder-strike current data by the thunder-strike current data
With thunder-strike current threshold value comparison, and for the thunder-strike current data be greater than the thunder-strike current threshold value when export lightning stroke incident
For characterizing lightning stroke incident occurs for indication signal, the lightning stroke incident indication signal；
The lightning stroke counter is used to after receiving the lightning stroke incident indication signal adding count value into 1, and for described
Number of lightning strokes alarm signal, the control letter are issued to the control signal output unit when count value reaches default Safe Times
Number output unit is also used to after receiving the number of lightning strokes alarm signal send to the lightning protection device monitoring unit described disconnected
Open control signal.
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 monitor supervision platform further include third comparator, the third comparator and control signal output unit electricity
Connection, the alarm unit are electrically connected with the control signal output unit；
The third comparator is used for for receiving the leakage data by the leakage data and the second leakage current threshold
Value is compared, and single for exporting when the leakage data is greater than second leakage current threshold to the control signal
Member the second leakage current alarm signal of output, second leakage current threshold are less than first leakage current threshold；
The control signal output unit is also used to after receiving the second leakage current alarm signal to the alarm unit
Send alarm control signal；
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 control signal output unit；
The control signal output unit is also used to after receiving the offline alarm signal of the lightning protection device to the alarm unit
Send the 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 monitor supervision platform further includes the 4th comparator, the 4th comparator and the control signal output unit
Electrical connection, the alarm unit are electrically connected with the control signal output unit；
4th comparator is used for for receiving the leakage data by the leakage data and third leakage current threshold
Value is compared, and single for exporting when the leakage data is less than the third leakage current threshold to the control signal
Member output third leakage current alarm signal, the third leakage current threshold are less than first leakage current threshold；
The control signal output unit is also used to after receiving the third leakage current alarm signal to the alarm unit
Send alarm control signal；
The alarm unit after receiving the alarm control signal for alarming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325624.0U CN208690925U (en) | 2018-08-16 | 2018-08-16 | Lightning protection monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325624.0U CN208690925U (en) | 2018-08-16 | 2018-08-16 | Lightning protection monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208690925U true CN208690925U (en) | 2019-04-02 |
Family
ID=65885596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821325624.0U Active CN208690925U (en) | 2018-08-16 | 2018-08-16 | Lightning protection monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208690925U (en) |
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2018
- 2018-08-16 CN CN201821325624.0U patent/CN208690925U/en active Active
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Effective date of registration: 20210527 Address after: 201615 room 202-1, building 7, no.1158, Jiuting Central Road, Jiuting Town, Songjiang District, Shanghai Patentee after: Shanghai Youtai oushen Intelligent Technology Co.,Ltd. Address before: 201612 Room 201, building 7, 1158 Central Road, Jiuting Town, Songjiang District, Shanghai Patentee before: SHANGHAI EUROTECT ELECTRIC Co.,Ltd. |
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