CN107144724A - A kind of arrester real time and on line monitoring method - Google Patents
A kind of arrester real time and on line monitoring method Download PDFInfo
- Publication number
- CN107144724A CN107144724A CN201710362553.5A CN201710362553A CN107144724A CN 107144724 A CN107144724 A CN 107144724A CN 201710362553 A CN201710362553 A CN 201710362553A CN 107144724 A CN107144724 A CN 107144724A
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- arrester
- temperature
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- thermistor
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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
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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
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Static Devices (AREA)
Abstract
The present invention proposes a kind of arrester real time and on line monitoring method, including：Gather the temperature and voltage of the second thermistor of the temperature of the first thermistor of the vessel surface of arrester and the transition Diode facets of voltage and arrester；According to thermistor and the coefficient of relationship of temperature, the temperature of thermistor and voltage, discharge tube lightning current and the coefficient of relationship of temperature are flowed through, the lightning current of the lightning current and transition diode that flow through discharge tube is obtained；When the lightning current for flowing through discharge tube is more than the nominal maximum discharge current of discharge tube, control arrester status indicator lamp is bright, and shows the first warning message；When the lightning current for flowing through transition diode is more than the nominal maximum discharge current of transition diode, control arrester status indicator lamp is bright, and shows the second warning message.Using the present invention staff can be reminded to change arrester in time, it is to avoid to cause device damage below.
Description
Technical field
The present invention relates to intelligent power grid technology field, and in particular to a kind of arrester real time and on line monitoring method.
Background technology
Current signal arrester general principle is shown in Fig. 1, and main devices include first order discharge device discharge tube G, decoupling
Device R, second level electric discharge TVS pipe T, after external signal line is struck by lightning, thunder and lightning is released to by G and T, behind equipment protected
Shield.Signal arrester by use for many years or by larger thunderbolt after, performance starts decay, and the main result of decay includes two
Aspect：(1) be G and T discharge capability decline, such as the discharge capability of signal arrester be 5KA, 1KA may be dropped to after decay
Hereinafter, now, when once larger thunder and lightning occurs, G and T can not be released to ground completely, and most of thunder and lightning has arrived equipment, caused to set
It is standby to damage.(2) protection voltage is greatly improved, and protection voltage is thunder and lightning by the voltage clamped down on after arrester, as Enif
More than several kilovolts, the scope that can be born to equipment after arrester (general tens volts), after arrester performance degradation, protection electricity
Pressure may reach kilovolt, and the voltage that bears for having exceeded equipment causes device damage.
To ensure not producing not power inside interference, existing arrester, active monitoring is not provided with, after its performance degradation,
No alarm is indicated, it is impossible to is reminded staff to change arrester in time, is caused device damage below.
The content of the invention
Based on this, the purpose of the embodiment of the present invention is to provide a kind of arrester real time and on line monitoring method, can be timely
Staff is reminded to change arrester, it is to avoid to cause device damage below.
To reach above-mentioned purpose, the embodiment of the present invention uses following technical scheme：
A kind of arrester real time and on line monitoring method, including step：
Capture setting exists in the temperature and voltage and capture setting of the first thermistor of the vessel surface of arrester
The temperature and voltage of second thermistor of the transition Diode facets of arrester；
According to the first thermistor and coefficient of relationship, the temperature of the first thermistor and the voltage of temperature, flow through discharge tube
The coefficient of relationship of lightning current and temperature, obtains the lightning current for flowing through discharge tube；
According to the second thermistor and coefficient of relationship, the temperature of the second thermistor and the voltage of temperature, flow through transition two
The coefficient of relationship of pole pipe lightning current and temperature, obtains the lightning current for flowing through transition diode；
When the lightning current for flowing through discharge tube is more than the nominal maximum discharge current of discharge tube, arrester state instruction is controlled
Lamp is bright, and shows the first warning message；
When the lightning current for flowing through transition diode is more than the nominal maximum discharge current of transition diode, arrester is controlled
Status indicator lamp is bright, and shows the second warning message.
In the present invention, discharge tube G, transition diode T surfaces in arrester respectively set thermistor a R1 and R2, stream
When overdischarge pipe G, transition diode T electric current increase to their respective maximums, discharge tube G, transition diode T surface
Temperature steeply rises, and obtains R1 and R2 voltage and temperature；Then according to R1 and R2 voltage and temperature, thermistor (R1,
R2) with measured temperature T coefficient of relationship, and the lightning current of discharge tube/transition diode and measured temperature T relation system are flowed through
Number can anti-plug-flow overdischarge pipe/transition diode lightning current.When discharge tube/transition diode lightning current exceed discharge tube/
(parameter is clearly labeled in device handbook) confirms as device aging or event during the nominal maximum discharge current of transition diode
Barrier, control arrester status indicator lamp is bright, and relevant information is uploaded into local computer by Ports Serial Communication Ports, can and
When remind staff change arrester, it is to avoid cause device damage below.
Brief description of the drawings
Accompanying drawing is, for providing a further understanding of the present invention, and to constitute a part for specification, and following specific
Embodiment is used to explain the present invention together, but should not be construed as limiting the invention.In the accompanying drawings,
Fig. 1 is the structural representation of signal arrester of the prior art；
Fig. 2 is a kind of flow chart of arrester real time and on line monitoring method proposed by the present invention.
Fig. 3 is a kind of application schematic diagram of arrester real time and on line monitoring proposed by the present invention.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is described in further detail.It should be appreciated that embodiment described herein is only to explain the present invention,
Do not limit protection scope of the present invention.
Fig. 2 shows a kind of flow chart of arrester real time and on line monitoring method, including step：
The temperature and voltage and collection of S100, capture setting in the first thermistor of the vessel surface of arrester
It is arranged on the temperature and voltage of the second thermistor of the transition Diode facets of arrester；
S101, coefficient of relationship, the temperature of the first thermistor and voltage according to the first thermistor and temperature, flow through and put
The coefficient of relationship of fulgurite lightning current and temperature, obtains the lightning current for flowing through discharge tube；
S102, coefficient of relationship, the temperature of the second thermistor and voltage according to the second thermistor and temperature, flow through wink
Become diode lightning current and the coefficient of relationship of temperature, obtain the lightning current for flowing through transition diode；
For ease of understanding, the process to the lightning current of the anti-plug-flow overdischarge pipe/transition diodes of CPU is illustrated below.
First illustrated with the anti-process for pushing away discharge tube：If：I1 is to flow through the constant current test electric current on thermistor R1, is set as
10mA, U1 are the voltage on R1, are read out by CPU, then U1=R1*0.01, i.e. R1=U1/0.01；
If：Resistance R1 and temperature T coefficient of relationship is s, then R1=T*s, and different discharge tube coefficient of relationship s are different, differ
Surely it is constant, it may be possible to a relational expression, device handbook acquisition can be looked into, or experiment is obtained；
If：I01 is to flow through the thunder and lightning on discharge tube, and the coefficient of relationship of the lightning current and temperature T that flow through discharge tube is k, then
IO1=T*k, different discharge tube coefficient of relationship k are different, are not necessarily constant, it may be possible to a relational expression, can look into device handbook and obtain
Take, or experiment is obtained；
Thus, it can calculate：It is I01=[k/ (0.01*s)] * U1 to flow through the lightning current size of discharge tube, and CPU reads electricity
The electric current for flowing through discharge tube can be conversed after pressure, when electric current is more than the nominal maximum discharge current of discharge tube, discharge tube is opened
Beginning aging is even damaged.The method that the discharge current of transition diode is same is calculated.
S103, when flow through discharge tube lightning current be more than discharge tube nominal maximum discharge current when, control arrester shape
State indicator lamp is bright, and shows the first warning message；First warning message can include：Arrester numbering, vessel surface temperature；
S104, when flow through transition diode lightning current be more than transition diode nominal maximum discharge current when, control
Arrester status indicator lamp is bright, and shows the second warning message.Second warning message can include：Arrester numbering, transition two
Pole pipe surface temperature；
In the present invention, discharge tube G as shown in Figure 3 in arrester, transition diode T surfaces respectively set a thermistor
R1 and R2, when flowing through discharge tube G, transition diode T electric current and increasing to their respective maximums, discharge tube G, the pole of transition two
Pipe T surface temperature steeply rises, and obtains R1 and R2 voltage and temperature；Then according to R1 and R2 voltage and temperature, temperature-sensitive
The coefficient of relationship of resistance (R1, R2) and measured temperature T, and flow through the lightning current and measured temperature T of discharge tube/transition diode
Coefficient of relationship can anti-plug-flow overdischarge pipe/transition diode lightning current.When discharge tube/transition diode lightning current exceedes
During the nominal maximum discharge current of discharge tube/transition diode (parameter is clearly labeled in device handbook) to confirm as device old
Change or failure, control arrester status indicator lamp is bright, and relevant information is uploaded into local computer by Ports Serial Communication Ports,
Staff can be reminded to change arrester in time, it is to avoid cause device damage below.
In the improvement project of above-described embodiment, in addition to step：The arrester is monitored by the number of times in thunderbolt, if keeping away
When thunder device is more than or equal to early warning value by the number of times in thunderbolt, control arrester status indicator lamp is bright, and shows that the 3rd alarms
Information.3rd warning message can include：The cumulative number that arrester numbering, arrester are struck by lightning.
Specifically, referring to Fig. 3, induction coil is socketed in the common of the discharge tube of arrester and the ground wire of transition diode
On part of path, the induction coil is connected to the thunderbolt pulse counter module, and the thunderbolt pulse counter module connection is described
CPU.The voltage of sensing is connected to thunderbolt pulse counter module by a and b lines, a voltage pulse is then exported, whenever arrester
Electric discharge once just exports a voltage pulse.The output pulse access CPU of thunderbolt pulse counter module, accumulated pulse number of times.When
Accumulative number of times confirms as arrester when exceeding nominal discharge number of times (data are determined in arrester qualification test) of arrester
Aging or failure, CPU control arrester status indicator lamps are bright while controlling voice guard to send alarm sound represents arrester
Failure, surge arrester failure and relevant information are shown in remote server and local computer.
In the improvement project of above-described embodiment, in addition to step：Gather the working volts alternating current of arrester, and collection
Voltage between the zero line and ground wire of arrester alternating current；
When the working volts alternating current of arrester is more than or equal to default first voltage value, and/or, when arrester is handed over
When flowing the voltage between the zero line and ground wire of electricity more than or equal to default second voltage value, arrester status indicator lamp is controlled
It is bright, and show the 4th warning message.4th warning message can include：Arrester numbering, the working volts alternating current of arrester,
And/or, the voltage between the zero line and ground wire of arrester alternating current.
Preferably, when working volts alternating current deviation exceed setting value (general 10%, pass through the voltage of collection and default electricity
Pressure value, which is compared, to be obtained) when voltage alarm, when the voltage between zero line and ground wire is more than 3V alarms.Sometimes equipment (is wrapped
Include power arrester) thunderbolt directly damage is not necessarily, but thunderbolt causes voltage pulsation to burn out equipment, has voltage to supervise in real time
Survey, can accurately judge device damage reason.
When the temperature and humidity of environment is beyond setting threshold value alarm.The operation of any electronic equipment is required certain
It is long-term to deviate acceleration equipment aging under temperature and humidity.Real-time temperature and humidity is monitored, equipment operating environment contrast can be carried out
Statistics.In the improvement project of above-described embodiment, in addition to step：Gather the environment temperature and humidity of arrester local environment；
When arrester local environment environment temperature exceed default environment temperature, and/or, when the ambient humidity of arrester local environment
During more than default ambient humidity, control arrester status indicator lamp is bright, and shows the 5th warning message.5th warning message can
With including：Arrester numbering, arrester local environment temperature and humidity.
Arrester alarm can also carry out remote monitoring, in the improvement project of above-described embodiment, in addition to step：Will report
Alert information is uploaded to remote server.
Audible alarm can also be carried out by carrying out arrester alarm, when there is any light warning of above-described embodiment
When, audible alarm can also be carried out.
In the present invention, the ID of arrester, alarm condition data, accumulated discharge number of times, operating voltage, part-loading goods, temperature
The data such as degree, humidity constitute the output in every 5 minutes of a packet once, are sent to remote server by Ethernet, pass through string
Mouth is connected to local computer.
Without departing from the thought of the invention, the various not be the same as Examples to the present invention are combined, all should
When being considered as present disclosure；In the range of the technology design of the present invention, a variety of simple modifications are carried out to technical scheme
And not be the same as Example carry out the thought without prejudice to the invention any combination, all should protection scope of the present invention it
It is interior.
Claims (6)
1. a kind of arrester real time and on line monitoring method, it is characterised in that including step：
Capture setting is being taken shelter from the thunder in the temperature and voltage and capture setting of the first thermistor of the vessel surface of arrester
The temperature and voltage of second thermistor of the transition Diode facets of device；
According to the first thermistor and coefficient of relationship, the temperature of the first thermistor and the voltage of temperature, flow through discharge tube thunder and lightning
Stream and the coefficient of relationship of temperature, obtain the lightning current for flowing through discharge tube；
According to the second thermistor and coefficient of relationship, the temperature of the second thermistor and the voltage of temperature, flow through transition diode
The coefficient of relationship of lightning current and temperature, obtains the lightning current for flowing through transition diode；
When the lightning current for flowing through discharge tube is more than the nominal maximum discharge current of discharge tube, arrester status indicator lamp is controlled
It is bright, and show the first warning message；
When the lightning current for flowing through transition diode is more than the nominal maximum discharge current of transition diode, arrester state is controlled
Indicator lamp is bright, and shows the second warning message.
2. arrester real time and on line monitoring method as claimed in claim 1, it is characterised in that also including step：Monitoring is described
Arrester is by the number of times in thunderbolt, if arrester is more than or equal to early warning value by the number of times in thunderbolt, controls arrester shape
State indicator lamp is bright, and shows the 3rd warning message.
3. arrester real time and on line monitoring method as claimed in claim 1, it is characterised in that also including step：Collection is lightning-arrest
Voltage between the working volts alternating current of device, and the zero line and ground wire of collection arrester alternating current；
When the working volts alternating current of arrester is more than or equal to default first voltage value, and/or, when arrester alternating current
Zero line and ground wire between voltage be more than or equal to default second voltage value when, control arrester status indicator lamp it is bright,
And show the 4th warning message.
4. arrester real time and on line monitoring method as claimed in claim 1, it is characterised in that also including step：
Gather the environment temperature and humidity of arrester local environment；
When arrester local environment environment temperature exceed default environment temperature, and/or, when the environment of arrester local environment
When humidity exceedes default ambient humidity, control arrester status indicator lamp is bright, and shows the 5th warning message.
5. the arrester real time and on line monitoring method as described in any one of Claims 1-4, it is characterised in that also including step：
Warning message is uploaded to remote server.
6. arrester real time and on line monitoring method as claimed in claim 5, it is characterised in that also including step：Control is lightning-arrest
When device status indicator lamp is bright, audible alarm is carried out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362553.5A CN107144724A (en) | 2017-05-22 | 2017-05-22 | A kind of arrester real time and on line monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710362553.5A CN107144724A (en) | 2017-05-22 | 2017-05-22 | A kind of arrester real time and on line monitoring method |
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| CN201710362553.5A Pending CN107144724A (en) | 2017-05-22 | 2017-05-22 | A kind of arrester real time and on line monitoring method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108845206A (en) * | 2018-06-26 | 2018-11-20 | 伏诺瓦(天津)科技有限公司 | Transmission line of electricity lightning protector safety hidden danger monitoring method and device |
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| CN201199252Y (en) * | 2008-01-11 | 2009-02-25 | 西安理工大学 | On-line monitoring device for wireless multi-channel lightning arrestor |
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Effective date of registration: 20170930 Address after: 511450 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Jin Shan Cun CRE Animation Industrial Park No. C27 fourth Applicant after: Guangzhou science and Technology Co., Ltd.. Address before: 511450 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Jin Shan Cun CRE Animation Industrial Park No. C27 fourth Applicant before: Guangzhou City Lai letter Electronic Technology Co. Ltd. |
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Application publication date: 20170908 |