CN105914703B - A kind of lightning protection intelligent back-up protection device and its guard method - Google Patents
A kind of lightning protection intelligent back-up protection device and its guard method Download PDFInfo
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- CN105914703B CN105914703B CN201610384921.1A CN201610384921A CN105914703B CN 105914703 B CN105914703 B CN 105914703B CN 201610384921 A CN201610384921 A CN 201610384921A CN 105914703 B CN105914703 B CN 105914703B
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- latching relay
- circuit
- magnetic latching
- current
- protection device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
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- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of intelligent back-up protection devices of lightning protection; including magnetic latching relay and controller; the controller includes single-chip microcontroller and the current collection circuit connecting with the single-chip microcontroller, timer circuit, signal output apparatus and power circuit; the current collection circuit is connected with the on-off circuit of the magnetic latching relay; the signal output apparatus is connected with the coil of the magnetic latching relay, is also connected with key circuit on the single-chip microcontroller.The invention also discloses a kind of lightning protection guard methods of intelligent standby device; by installing controller additional on magnetic latching relay; by detecting electric current in the line; it not will disconnect when being determined as that lightning current flows through; when being determined as power current; triggering magnetic latching relay disconnects within the set time, it is ensured that will not be because of having high current to flow through lightning protection device and burning apparatus.
Description
Technical field
The present invention relates to a kind of lightning protection intelligent back-up protection devices and its guard method, belong to anti-thunder technical field.
Background technique
Lightning protection device when in use, due to deterioration or TOV overvoltage product can be caused to burn in moment, in installation
It requires that back-up protection device is installed in lightning protection device front end in the process, is generally spaced apart or fuse, in practical applications, after this
Standby protector can neither bear the impact of high current, but cannot the quick disjunction in certain power current, often result in
There is the case where being broken, cause lightning protection device to burn under power current in the case of big lightning current.
And magnetic latching relay has been developed in recent years a kind of new type of relay and a kind of automatic switch.And its
His electromagnetic relay is the same, plays turn on automatically and cutting action to circuit.The difference is that magnetic latching relay normally closed or
Normally open is entirely to rely on the effect of permanent-magnet steel, and the conversion of switch state is the pulse electrical signal triggering by one fixed width
And complete.
Although magnetic latching relay has all been applied in many fields, in anti-thunder technical field, due to spy
The difference of different performance and working method, existing magnetic latching relay can not normal uses.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of lightning protection intelligent back-up protection devices and its guard method, lead to
It crosses and installs controller additional on magnetic latching relay, by detecting electric current in the line, when being determined as that lightning current flows through not
It will disconnect, when being determined as power current, triggering magnetic latching relay disconnects within the set time, it is ensured that will not be because of there is big electricity
Stream flows through lightning protection device and burning apparatus.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of intelligent back-up protection device of lightning protection, including magnetic latching relay and controller, the controller include monolithic
Machine and the current collection circuit being connect with the single-chip microcontroller, timer circuit, signal output apparatus and power circuit, the electric current
Acquisition Circuit is connected with the on-off circuit of the magnetic latching relay, the signal output apparatus and the magnetic latching relay
Coil be connected, be also connected with key circuit on the single-chip microcontroller.
The intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: be also connected with voltage on the single-chip microcontroller and adopt
Collector is connected between the voltage collection circuit and the on-off circuit of the magnetic latching relay by switching circuit, institute
It states and is also connected with counter circuit on single-chip microcontroller.
The intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: the coil of the magnetic latching relay is also logical
It crosses hand control switch to be connected with the single-chip microcontroller, is also connected with indicator light circuit on the single-chip microcontroller.
The intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: alarm electricity is also connected on the single-chip microcontroller
Road and liquid crystal display.
A kind of intelligent back-up protection device of lightning protection above-mentioned, it is characterised in that: single-chip microcontroller circuit by wireless communication
It is connected with PC machine.
The intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: the contact of the magnetic latching relay is copper
Tungsten alloy material, and two opposite surfaces are the inclined surface that can be bonded to each other.
The intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: the armature of the magnetic latching relay turns
Axis is arranged far from one end of the contact.
A kind of to utilize a kind of guard method of the intelligent back-up protection device of lightning protection above-mentioned of such as claim, feature exists
In: include the following steps:
(1) magnetic latching relay is disconnected by hand control switch, and the intelligence back-up protection device is correctly installed to anti-
The front end of thunder device is closed hand control switch after being installed, and keeps magnetic latching relay in running order；
(2) reference current value is set by key circuit；
(3) by the current value in the on-off circuit of acquisition magnetic latching relay, when collected current value is more than setting
When value, when passing through timer, when the time that the current value is more than setting value being greater than the overcurrent reference time of setting, determine
The electric current is power current, issues signal by signal output apparatus, the coil blackout of magnetic latching relay is controlled, to make two
A contact separation, the on-off circuit power-off of magnetic latching relay, realizes the protection to lightning protection device；It is given simultaneously by warning circuit
Alarm signal out, to remind staff；
(4) current value acquired in the step (3) is the high current of kilo-ampere grade, but the duration of the electric current is less than and sets
When definite value, then the electric current is determined for thunder-strike current, magnetic latching relay continues to work normally.
The guard method of the intelligent back-up protection device of a kind of lightning protection above-mentioned, it is characterised in that: set in the step (2)
While determining reference current, reference voltage is set, the electricity in the step (3) in the on-off circuit of acquisition magnetic latching relay
While flow valuve, the voltage value in the on-off circuit of magnetic latching relay is acquired by voltage collection circuit, when collected electricity
When pressure value is more than the overvoltage reference time of setting, signal is issued by signal output apparatus, controls the line of magnetic latching relay
Circle power-off issues signal by signal output apparatus, controls magnetic latching relay when voltage drops to setting value or less
Coil is powered, and magnetic latching relay is made to continue to work normally.
A kind of guard method of the intelligent back-up protection device of lightning protection above-mentioned, it is characterised in that: setting in the step (2)
Current reference value be 50mA-5A, the voltage reference value set as 255V-800V, and the overcurrent reference time set as
0.1s, the overvoltage reference time set is 50ms.
The beneficial effects of the present invention are:
1, by installing controller additional on magnetic latching relay, by detecting electric current in the line, when being determined as lightning current
It not will disconnect when flowing through, when being determined as power current, triggering magnetic latching relay disconnects within the set time, it is ensured that no
It can be because there is high current to flow through lightning protection device and burning apparatus；
2, by detecting voltage in the line, when the voltage detected is more than setting value, and reaches certain duration, touching
Hair magnetic latching relay disconnects within the set time, when detecting that voltage returns to setting value once, from new triggering magnetic keep after
Electric appliance closure, it is ensured that lightning protection device will not be made because of big voltage and burning apparatus；
3, by the way that the contact of magnetic latching relay is used tungsten-copper alloy, guarantee when there is lightning current to pass through, contact is not yet
Can burn out, and use opposite inclined design, guarantee between two contacts can sufficient face contact, avoid leading because of point contact
Cause electric current at contact excessive and burn out；
4, by the way that the shaft of magnetic latching relay to be arranged far to one end of the contact, in the wink of switching coil electric current
Between two contacts can be separated rapidly by lever principle, it is ensured that not will cause the damage of lightning protection device.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the magnetic latching relay of the intelligent back-up protection device of lightning protection of the present invention；
Fig. 2 is a kind of module connection diagram of the controller of the intelligent back-up protection device of lightning protection of the present invention.
Specific embodiment
Below in conjunction with Figure of description, the present invention is described further.
As depicted in figs. 1 and 2, a kind of lightning protection intelligent back-up protection device, including magnetic latching relay 1 and controller, institute
State controller include single-chip microcontroller and the current collection circuit being connect with the single-chip microcontroller, timer circuit, signal output apparatus and
Power circuit, the current collection circuit are connected with the on-off circuit of the magnetic latching relay 1, the signal output apparatus
It is connected with the coil of the magnetic latching relay 1, is also connected with key circuit on the single-chip microcontroller.
It can current reference with setting electric current reference value and overcurrent reference time, in the present embodiment by key circuit
Value is adjustable between 50mA-5A, and the overcurrent reference time is 0.1s, can also need be adjusted correspondingly according to the time.Pass through
Electric current is detected in the line, when the electric current in route is that still the duration is small for tens kilo-amperes or more than 100 kilo-ampere dash currents
It is determined as lightning current when 50ms, magnetic latching relay 1 not will disconnect when lightning current flows through, when collected electricity
Flow valuve is more than the value of setting, and when determining that the time is greater than 0.1s by timer circuit, is determined as power current, triggering magnetic holding
Relay disconnects within the set time, it is ensured that will not be because of there is high current to flow through lightning protection device and burning apparatus.
Voltage collection circuit, the voltage collection circuit and the magnetic latching relay 1 are also connected on the single-chip microcontroller
On-off circuit between be connected by switching circuit, be also connected with counter circuit on the single-chip microcontroller.
Voltage reference value and overvoltage reference time can be set by key circuit, the Voltage Reference in the present embodiment
Value is 255V-800V, and the overcurrent reference time is 50ms, can also need to be adjusted correspondingly according to the time.Pass through switch electricity
Road can choose whether that carry out voltage acquisition to route detects voltage when the switch is closed in the line, when the voltage detected
More than setting value, and when reaching 50ms or more, triggering magnetic latching relay disconnects within the set time, when detecting that voltage returns to
Setting value once when, from new triggering magnetic latching relay closure, it is ensured that lightning protection device will not be made because of big voltage and burning apparatus.
And the number of overvoltage is recorded by counter.
Circuit is connected the single-chip microcontroller with PC machine by wireless communication, the collected data transmission of single-chip microcontroller can be arrived
The long-range end PC, while the intelligence back-up protection device can also be remotely controlled by the end PC.
It is also connected with warning circuit and liquid crystal display on the single-chip microcontroller, setting can be shown by liquid crystal display
All kinds of parameters are alarmed, with prompt when electric current or voltage are more than setting value, and reach the duration of setting by warning circuit
Staff.
The coil of the magnetic latching relay 1 also passes through hand control switch and is connected with the single-chip microcontroller, the monolithic
Indicator light circuit is also connected on machine.Magnetic latching relay can be disconnected or be closed by hand control switch, disconnected manually
When long-range or program cannot be leaned on to act magnetic latching relay, while two indicator lights are set, show the closure of product
Or it disconnects.Convenient for after mounting for protector when, be in off-position, improve safety when installation.
The contact 2 of the magnetic latching relay 1 is copper-tungsten material, and two opposite surfaces can be bonded to each other
Inclined surface guarantees that when there is lightning current to pass through, contact will not be burnt out, and uses opposite inclined design, guarantees two contacts
Between can sufficient face contact, avoid causing due to point contact at contact electric current excessive and burn out.
The shaft 3 for holding the armature 4 of relay 1 is arranged far from one end of the contact 2.In the moment of switching coil electric current
Two contacts can be separated rapidly by lever principle, it is ensured that not will cause the damage of lightning protection device.
The present invention also provides the guard methods that benefit requires a kind of intelligent back-up protection device of lightning protection, include the following steps:
(1) magnetic latching relay is disconnected by hand control switch, and before the intelligence back-up protection device is correctly installed to lightning protection device
End, is closed hand control switch after being installed, keeps magnetic latching relay in running order；(2) it is set by key circuit
Reference current value；(3) by the current value in the on-off circuit of acquisition magnetic latching relay, when collected current value is more than to set
When definite value, when passing through timer, when the time that the current value is more than setting value being greater than the overcurrent reference time of setting, sentence
The fixed electric current is power current, issues signal by signal output apparatus, the coil blackout of magnetic latching relay is controlled, to make
Two contact separation, the on-off circuit power-off of magnetic latching relay, realize the protection to lightning protection device；Pass through warning circuit simultaneously
Alarm signal is provided, to remind staff；(4) when the high current that the current value acquired in step (3) is kilo-ampere grade, still
When the duration of the electric current is less than setting value, then the electric current is determined for thunder-strike current, magnetic latching relay continues to work normally.
Wherein, in the step (2) while setting reference current, reference voltage, the step (3) can also be set
In acquire magnetic latching relay on-off circuit in current value while, pass through voltage collection circuit acquire magnetic keep relay
Voltage value in the on-off circuit of device, it is defeated by signal when collected voltage value is more than the overvoltage reference time of setting
Circuit sending signal out controls the coil blackout of magnetic latching relay, when voltage drops to setting value or less, passes through signal
Output circuit issues signal, and the coil for controlling magnetic latching relay is powered, and magnetic latching relay is made to continue to work normally.
In the present embodiment, the current reference value set in step (2) is 50mA-5A, and the voltage reference value set is 255V-
800V, and the overcurrent reference time set is 0.1s, the overvoltage reference time set is 50ms.
In conclusion a kind of intelligent back-up protection device of lightning protection provided by the invention, a kind of intelligent back-up protection of lightning protection
Device and its guard method, by installing controller additional on magnetic latching relay, by detecting electric current in the line, when being determined as thunder
It not will disconnect when electric current flows through, when being determined as power current, triggering magnetic latching relay disconnects within the set time, really
Protecting will not be because of having high current to flow through lightning protection device and burning apparatus.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Boundary.
Claims (3)
1. a kind of lightning protection guard method of intelligent back-up protection device, which includes magnetic latching relay (1)
And controller, the controller include single-chip microcontroller and the current collection circuit connecting with the single-chip microcontroller, timer circuit, signal
Output circuit and power circuit, the current collection circuit is connected with the on-off circuit of the magnetic latching relay (1), described
Signal output apparatus is connected with the coil of the magnetic latching relay (1), is also connected with key circuit on the single-chip microcontroller；
It is characterized by: the guard method includes the following steps:
(1) magnetic latching relay is disconnected by hand control switch, and the intelligence back-up protection device is correctly installed to lightning protection device
Front end, be closed hand control switch after being installed, keep magnetic latching relay in running order；
(2) reference current value is set by key circuit；
(3) by the current value in the on-off circuit of acquisition magnetic latching relay, when collected current value is more than setting value,
When passing through timer, when the time that the current value is more than setting value being greater than the overcurrent reference time of setting, the electricity is determined
Stream is power current, issues signal by signal output apparatus, controls the coil blackout of magnetic latching relay, to make two touchings
Head separation, the on-off circuit power-off of magnetic latching relay, realizes the protection to lightning protection device；Simultaneously by warning circuit to responding
Show signal, to remind staff；
(4) when the high current that the current value acquired in step (3) is kilo-ampere grade, but the duration of the electric current is less than setting value
When, then the electric current is determined for thunder-strike current, and magnetic latching relay continues to work normally.
2. a kind of lightning protection according to claim 1 guard method of intelligent back-up protection device, it is characterised in that: the step
Suddenly in (2) while setting reference current, reference voltage, leading in acquisition magnetic latching relay in the step (3) are set
While current value in disconnected circuit, the voltage value in the on-off circuit of magnetic latching relay is acquired by voltage collection circuit,
When collected voltage value is more than the overvoltage reference time of setting, signal is issued by signal output apparatus, control magnetic is protected
The coil blackout for holding relay issues signal by signal output apparatus, controls magnetic when voltage drops to setting value or less
The coil of guard relay is powered, and magnetic latching relay is made to continue to work normally.
3. a kind of lightning protection according to claim 2 guard method of intelligent back-up protection device, it is characterised in that: the step
Suddenly the current reference value set in (2) is 50mA-5A, and the voltage reference value set is 255V-800V, and the overcurrent ginseng set
Examining the time is 0.1s, and the overvoltage reference time set is 50ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384921.1A CN105914703B (en) | 2016-06-02 | 2016-06-02 | A kind of lightning protection intelligent back-up protection device and its guard method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610384921.1A CN105914703B (en) | 2016-06-02 | 2016-06-02 | A kind of lightning protection intelligent back-up protection device and its guard method |
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| Publication Number | Publication Date |
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| CN105914703A CN105914703A (en) | 2016-08-31 |
| CN105914703B true CN105914703B (en) | 2019-03-05 |
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| CN201610384921.1A Active CN105914703B (en) | 2016-06-02 | 2016-06-02 | A kind of lightning protection intelligent back-up protection device and its guard method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329507B (en) * | 2016-10-15 | 2018-08-24 | 浙江雷源电气有限公司 | A kind of SCB back-up protections device and its control method |
| CN109959830B (en) * | 2017-12-26 | 2021-03-05 | 中国移动通信集团四川有限公司 | Lightning protection device monitoring device and monitoring method |
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| CN103236680A (en) * | 2013-04-16 | 2013-08-07 | 佛山市浦斯电子有限公司 | Intelligent protection device and method for surge protector |
| CN205092570U (en) * | 2015-09-30 | 2016-03-16 | 广西地凯科技有限公司 | Integration shunting backup protection ware |
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| CN205960622U (en) * | 2016-06-02 | 2017-02-15 | 浙江雷拓电气有限公司 | Lightning protection is with intelligent backup protection ware |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203632230U (en) * | 2013-10-08 | 2014-06-04 | 厦门赛尔特电子有限公司 | Surge protector with power frequency overvoltage protection function |
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2016
- 2016-06-02 CN CN201610384921.1A patent/CN105914703B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586259U (en) * | 2012-05-23 | 2012-12-05 | 浙江洛凯电气有限公司 | Minisize intelligent electric leakage comprehensive protection switch |
| CN103236680A (en) * | 2013-04-16 | 2013-08-07 | 佛山市浦斯电子有限公司 | Intelligent protection device and method for surge protector |
| CN205092570U (en) * | 2015-09-30 | 2016-03-16 | 广西地凯科技有限公司 | Integration shunting backup protection ware |
| CN105553018A (en) * | 2015-12-31 | 2016-05-04 | 浙江金源电气科技有限公司 | Wall-mounted transformer, and method thereof for charging of electric vehicles |
| CN205960622U (en) * | 2016-06-02 | 2017-02-15 | 浙江雷拓电气有限公司 | Lightning protection is with intelligent backup protection ware |
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| CN105914703A (en) | 2016-08-31 |
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Effective date of registration: 20210315 Address after: 325603 Dagang village, beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee after: SHANGHAI LEEYEE ELECTRIC Co.,Ltd. Address before: 325603 No.1 Xingye Road, Dagang village, beibaixiang Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG LEITUO ELECTRIC Co.,Ltd. |
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