CN109314370A - Electronics follows afterflow arc extinguishing auxiliary device - Google Patents
Electronics follows afterflow arc extinguishing auxiliary device Download PDFInfo
- Publication number
- CN109314370A CN109314370A CN201780037118.3A CN201780037118A CN109314370A CN 109314370 A CN109314370 A CN 109314370A CN 201780037118 A CN201780037118 A CN 201780037118A CN 109314370 A CN109314370 A CN 109314370A
- Authority
- CN
- China
- Prior art keywords
- arc extinguishing
- afterflow
- over
- auxiliary device
- voltage protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/12—Means structurally associated with spark gap for recording operation thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention relates to a kind of electronics to follow afterflow arc extinguishing auxiliary device (1), for monitoring over-voltage protection element (USE), the over-voltage protection element (USE) is spark gap or inflatable overvoltage arrester, described device includes monitoring element (O) and electronic switching element (S), the monitoring element is identified by electric arc caused by the over-voltage protection element (USE) electric current in a manner of photoelectricity, the electronic switching element is connected in parallel with over-voltage protection element (USE), the electronic switching element (S) is controlled by the monitoring element (O), when being identified to by electric arc caused by the over-voltage protection element (USE) electric current, electronic switching element (S) closure, to which electric current is concurrently discharged, when the arc extinction in the over-voltage protection element (USE), The electronic switching element (S) is opened, and is flowed through on the electronic switching element (S) so that there is no any electric currents.
Description
Technical field
The present invention relates to a kind of electronics to follow afterflow arc extinguishing auxiliary device.
Background technique
It is known from the state of the art numerous overvoltage protection devices.Wherein, respectively according to application field, using different over-voltages
Protective device.
Such as use spark gap as over-pressure safety device.But in spark gap (but also filled in other overvoltage protections
In setting) there are problems that this, i.e. afterflow can not be easy to arc extinguishing.
Therefore, arc extinguishing auxiliary equipment is having been proposed in the past.
Such as a kind of equipment as known to 20 2,007 018 507 U1 of DE, wherein to detect the anti-of the spark gap
It answers.For arc extinguishing, one section of regular time of semiconductor (transistor) of parallel connection is connected, the electric current commutation thus flowed through enters
This semiconductor and the spark gap arc extinguishing.After semiconductor closing, reach a kind of shape of stable isolation again
State.
But equipment presented herein is proved to be unfavorable because by the semiconductor caused short circuit always
It is long, that is to say, that whether to be not dependent on the spark gap by arc extinguishing.But this enforceable short circuit result in for
The huge feedback of claimed system influences, even when the afterflow very little and the spark gap will be many fastly
When ground is by arc extinguishing.In addition, the transistor is by unnecessarily load, to this transistor ageing quite fast and reduce
The service life of the equipment.
A kind of equipment as known to 2 537 164 A0 of EP concurrently connects temperature with gas-discharge tube (GDT) wherein
The changeable resistance (PTC) with positive coefficient.Pass through itself heating of the GDT during power grid afterflow, the PTC heating
And it is thus electrically conductive.Then, PTC described in current direction, can arc extinguishing by the power grid afterflow of the GDT.
But Thermal-mechanical Coupling proves not favorably, because its reflection is slower.Therefore, there is enough lead in the PTC
Before electric energy power, the GDT has to quite guide the afterflow long.Then, the PTC has the more long time electrically conductive,
Until cooling down successfully.That is, two elements bear quick aging.
Summary of the invention
It is described to replace the invention aims to provide a kind of alternative of novel cost advantages based on above-mentioned experience
Scheme is selected to avoid in the prior art one or more unfavorable.
Feature described in independent claims obtains the solution of above-mentioned purpose according to the present invention.Of the invention favorably sets
Meter in dependent claims and specification by being illustrated.
Detailed description of the invention
By preferred embodiment, the present invention is further explained with reference to the accompanying drawings.
Wherein:
Fig. 1 is to be illustrated according to the first illustrative circuitry of one embodiment of the present invention；
Fig. 2 is to be illustrated according to the first illustrative circuitry of another embodiment of the invention；
Fig. 3 is the overview diagram according to the working principle of embodiments of the present invention；
Fig. 4 is the overview diagram according to the another aspect of embodiments of the present invention；And
Fig. 5 is another aspect of the present invention.
Specific embodiment
The present invention is illustrated referring to attached drawing deeper into ground below.Here, it is noted that illustrated different aspect can be distinguished
Individually or in combination with one another it is applied.That is, each aspect is come in combination with different embodiments of the invention
It uses, as long as no clearly stating as pure alternative.
In addition, below for simplicity, usually only by an entity.But as long as not being attached with clearly, the present invention can also
It is respectively provided with more related entities.For this respect, using words and phrases, "one" is only understood to refer to, a kind of simple
Embodiment in use at least one entity.
Electronics according to the present invention for the over-voltage protection element USE to be monitored follows afterflow arc extinguishing auxiliary device 1
Usually there is different elements.
To illustrate some core elements first below.
First it will be clear that the arc extinguishing auxiliary device is applicable not only to inflatable overvoltage arrester, but also it is suitable for it
He generates the over-voltage protection element USE of bright effect when fulfiling its work.Thus, for example the present invention can also pass through spark gap
Carry out work.
The afterflow arc extinguishing auxiliary device 1 according to the present invention has at least one monitoring element O, which passes through
Photovoltaic is identified by the generation and interruption of electric arc caused by the electric current of the over-voltage protection element USE.
In addition, the afterflow arc extinguishing auxiliary device 1 according to the present invention have electronic switching element S, the switch element with
Over-voltage protection element USE is connected in parallel.The electronic switching element S is controlled by the monitoring element O herein,
In, when electric arc caused by by the electric current of the over-voltage protection element USE is identified to, the electronic switching element S closure,
To which electric current is concurrently discharged, when the arc extinction in the over-voltage protection element USE, the electronic switching element S is beaten
It opens, is flowed through on the electronic switching element S so that there is no any electric currents.
Pass through foregoing invention, it will be able to provide quickly cutting, the open circuit can be in afterflow due to the overvoltage protection member
Part and " short circuit " for reopening arc extinguishing after arc extinguishing by the electronic switching element S as soon as possible, thus the on the one hand component
Energy is durable for a long time, not premature aging, and the interference of follow-up equipment is also few as much as possible.
In a kind of design of the invention, the electronics afterflow arc extinguishing auxiliary device 1 be may be mounted to that on circuit board.Also
It is to say, it can be easy to be integrated in conventional manufacturing process, and allowed cost is advantageous integrated.
In addition, being provided with telecommunication equipment in another design of the invention, the telecommunication equipment is notified that
The access and interruption of the over-voltage protecting function.Therefore, can from identify at a distance the switching characteristic of the over-pressure safety device USE/
Reaction, and can for example be triggered and be examined according to the quantity of frequency or generation per unit time.Thus functional reliability is improved.
According to still another design, in addition telecommunication equipment is set, the telecommunication equipment notifies the electronic cutting
Close the switching of element S.That is, therefore, can monitor and ensure the function of the electronics afterflow arc extinguishing auxiliary device 1.
Therefore, can be from the switching characteristic/reaction for identifying the electronic switching element S at a distance, and it for example can be according to per unit time
Frequency or the triggering of the quantity of generation are examined.Thus functional reliability is improved.
It is very advantageous that the present invention can work together with DC current.Especially in DC current, it may appear that electricity
The problem of net afterflow, the afterflow can not be easy to arc extinguishing.But also occurs similar problem in powerful AC network.
By the fairly simple design of the electronics afterflow arc extinguishing auxiliary device 1, this afterflow arc extinguishing auxiliary device is just
The field of being widely applied can be used in.Therefore, the electronics afterflow arc extinguishing auxiliary device 1 can be applied to temperature from -50 DEG C
Into 125 DEG C of environment.
The electronics afterflow arc extinguishing auxiliary 1 can be equipped with different switch element S herein.The electronic switching element S is
Semiconductor switch: including field-effect-transistor and/or bipolar junction transistor.
Such as a kind of IGBT(insulated-gate Bipolar-Transistor insulated gate as shown in figs. 1 and 2
Bipolar junction transistor) it is used as electronic switching element S.
The electronics afterflow arc extinguishing auxiliary device 1 can be equipped with different monitoring element O herein, so as to photoelectricity identification.Institute
State what monitoring element O was at least selected from photo resistance, photodiode, phototransistor, photovoltaic element group class
A kind of element.
Such as shown in figs. 1 and 2 a kind of photodiode as monitoring element O.
As finding out in Fig. 4, (diagram is right in shielded side for the electronics afterflow arc extinguishing auxiliary device 1
Side) on have at least one electric induction element LL、LS, to be assisted with the over-voltage protection element being present in claimed equipment
With work.
That is, will be disconnected if there is in the over-voltage protection element in subsequent electrical equipment, then, it is quickly electric
Stream increases just leads to corresponding counter voltage in the coil, to then will also trigger the over-voltage protection element USE.
A kind of electronics afterflow arc extinguishing auxiliary system E is provided in another design of the invention, the system is in addition to tool
Having other than electronics afterflow arc extinguishing auxiliary device 1 above-mentioned also has the over-voltage protection element USE to be monitored.
In a kind of design, the electronics afterflow arc extinguishing auxiliary system E also be may be mounted to that on circuit board.That is,
It can be easy to be integrated in conventional manufacturing process, and allowed cost is advantageous integrated.
That is, the present invention utilizes, there is bright effect in the case where over-voltage protection element USE reaction
It answers.This bright effect is detected by way of photoelectricity.
Wherein, in addition another control system can be set in the form of microcontroller or counter, just as example from Fig. 1 or
As finding out in 2.Therefore, the flash of light can be analyzed for duration and/or frequency, thus until more
In the case where reliably recognizing afterflow, the electronic switching element S is just activated, and thus prevents the switch element S over-voltage.
In addition the micro controller can provide the function of telecommunication.Alternative or additional scheme are also settable passive delay (collection
At element, the circuit RC, the circuit LC etc.), the delay for example only just activates institute after m- such as 1ms when scheduled
Switch element S is stated, to give the over-voltage protection element USE time enough, releases the dash current of 10/350 ° of μ s completely
(such as 10/350 ° of μ s).
When detecting luminescence phenomenon, the electronic switching element can be activated by way of electronics immediate or delayedly
IEEE Std parallel highway on S, such as the IEEE Std parallel highway is electrically conductive wherein.As long as arc extinguishing has been simultaneously by the over-voltage protection element USE
And no longer there is any light, the IEEE Std parallel highway is with regard to disabled.
By the present invention, both when arc extinguishing process starts, also at the end of arc extinguishing process, very quick reaction is provided.
Where it is proposed a kind of system of self-regulated, which can cost-effectively be manufactured.
In addition, thus the overvoltage protection device with minimum structure size and high discharge capability can be provided.
In fig 1 and 2, illustrative circuit modifications are listed.
Wherein, photodiode is worked as monitoring element O.Photodiode work in the short-circuit state herein
Make (UD=0).Cause electricity on corresponding coupling resistance RN by the caused photoelectric current (Ip) that shines of the photodiode
Pressure drop.
The corresponding coupling resistance RN is for example chosen to obtain quite high (20M Ω) herein, so as in bright minimum situation
Under reach output signal high as far as possible.Thus the minimum light of the over-voltage protection element USE is just had been detected by.Wherein, institute
Stating monitoring element O can independently be integrated in beside the over-voltage protection element USE, but can be integrated into the over-voltage and protect
In protection element USE.
It, in some cases may be it is required that avoiding ring by mixing and/or filtering in a kind of independent design
Border light selectively observes the specific spectra part of luminescence phenomenon in other words, so as not to cause the electronic switching element S
Mistake disconnection.
Monitoring element O correspond in other words output voltage on coupling resistance RN and light luminance at than, wherein in bright pole
In the case where small, output voltage has just been saturated.
The initial signal of the light detection is used as the input signal of time delay.For the power supply electricity of the circuit
Pressure, indicates UDC.Npn- transistor T1 is controlled by the current flux by R2 that the input voltage is caused.As a result, this
One transistor is conductive.The discharge process of the capacitor C1 starts as a result,.If the voltage on existing capacitor C1 drops on R6
Equivalent voltage hereinafter, the operational amplifier LM258 connect output end OUT2.
If the DC power supply connected is since the power discharge device/electronic switching element S(accessed is in circuit diagram
In also referred to as T2) and it is short-circuit, result in high current by the electronic switching element S(the also referred to as T2 in circuit diagram).This
Current flux can rise to always the maximum short circuit current of the DC power supply.If the existing electronic switching element S(is in circuit diagram
In also referred to as T2) be transferred to the state of occlusion again, the electric current flowed through just quickly change is close to zero.The change of this electric current can be led
It causes, voltage wave crest is generated in DC network by parasitic inductance.If these voltage wave crests are sufficiently high, it would be possible to lead to the mistake
Pressure protection element USE further burns.
, can be as shown in fig. 1 in order to avoid such case, the electronic switching element S(is also referred to as T2 in circuit diagram)
It is merely able to slowly be transferred to the state of occlusion again.For this purpose, the output signal of delay can be modulated correspondingly.The capacitor C3
It can rapidly be charged by the resistance R8, to realize quickly increasing and be achieved in through the electronics for output voltage
Switch element S(in circuit diagram be also referred to as T2) quick-make.If no longer there is any voltage on the input side, the electricity
Container C3 just passes through the resistance R9 electric discharge.Because the size of this resistance R9 is quite big, the capacitor electric discharge just persistently obtains phase
When long.Therefore the quick charging and slowly electric discharge of the capacitor C3 are formd, this corresponds to the fast of the output voltage Ua
Speed rises and slowly decline.
In addition, the circuit can also still have voltage stabilizing device 30V, so as to the power supply of the electronic component.For needle
The electronic switching element S(is protected to be also referred to as T2 in circuit diagram to negative pulse)-it is implemented as IBGT herein, it can be used two
Pole pipe D3.
The voltage stabilizing device can be for example with Zener diode D6, which works simultaneously in breakdown region
And it is thus installed on blocking direction.In addition, the voltage stabilizing device can have current-limiting resistance R9, current-limiting resistance limitation
Flow through the electric current of the circuit.This resistance R9 should not have excessive resistance value, because current flux needs are sufficiently large, so as to
Reach the operating point of the diode.In addition, the voltage stabilizing device can have capacitor C2.This capacitor C2 has such
Purpose still provides enough energy in the DC power supply of short circuit for electronic component, to ensure its other function.As
For the protection that this capacitor discharges backward, the diode D2 is used.
IGBT is used to be advantageous as electronic switching element S, because IGBT is in low residual voltage and high-breakdown-voltage
In the case of have high current-carrying capacity.
Although foregoing description electronic switching element S is shown as parallel with over-voltage protection element USE, this is not answered
It is understood to be restrictive.It is more that more elements, outstanding are also arranged in the current branch of the electronic switching element
It is impedance Z.Wherein, the impedance Z can both have the property of resistance, can also have the property of inductance.
Such as this is shown in Fig. 5, and in the figure, the cloth in the current branch for leading to the electronic switching element S
Impedance Z is set, so as to circuit coordinates.Wherein, supply side is arranged on right side, and load side is arranged on left side.If existing tight
Then the overpressure situation for having caused the over-voltage protection element USE to burn and the electronic switching element S is caused to connect indirectly
And there is afterflow, then, electric current is just restricted by the impedance Z.
Mark explanation
Afterflow arc extinguishing auxiliary device 1
Overvoltage protection element USE
Monitoring element O
Electronic switching element S
Afterflow arc extinguishing auxiliary system E
Resistance R1, R2, R3, R4, R5, R6, R7, R8, R9
Diode D1, D2, D3, D4, D5
Zener diode D6
Operational amplifier LM258
Transistor T1, T2
Capacitor C1, C2, C3
Inductance LK, LL, LS
Impedance Z.
Claims (12)
1. a kind of electronics follows afterflow arc extinguishing auxiliary device (1), for monitoring over-voltage protection element (USE), the overvoltage protection
Element (USE) is spark gap or inflatable overvoltage arrester, which is characterized in that described device has monitoring element (O) and electricity
Sub-switch element (S):
The monitoring element is identified by electric arc caused by the over-voltage protection element (USE) electric current in a manner of photoelectricity；
The electronic switching element is connected in parallel with the over-voltage protection element (SE), and the electronic switching element (S) is by described
Monitoring element (O) control, when being identified to by electric arc caused by the over-voltage protection element (USE) electric current, the electronics
Switch element (S) closure, so that electric current is concurrently discharged, it is described when the arc extinction of the over-voltage protection element (USE)
Electronic switching element (S) is opened, so that there is no electric currents to flow through the electronic switching element (S).
2. afterflow arc extinguishing auxiliary device (1) according to claim 1 or 2, which is characterized in that the afterflow arc extinguishing auxiliary dress
Setting may be mounted to that on circuit board.
3. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that described device is set
It is equipped with telecommunication equipment, the telecommunication equipment notifies the access and interruption of the over-voltage protecting function.
4. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that described device is set
It is equipped with telecommunication equipment, the telecommunication equipment notifies the switching of the electronic switching element (S).
5. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that is connected opens
Powered-down stream is DC current.
6. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that described device ring
Border temperature application range is -50 DEG C to 125 DEG C.
7. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that the electronic cutting
Closing element (S) is semiconductor switch: including field effect transistor and/or bipolar junction transistor.
8. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that the monitoring member
Part (O) is at least one of photo resistance, photodiode, phototransistor, photovoltaic element group class element.
9. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that the afterflow is gone out
Arc auxiliary device has at least one inductance element (L) in protected side, for cooperating with over-voltage protection element.
10. afterflow arc extinguishing auxiliary device (1) according to any one of the preceding claims, which is characterized in that in the electricity
At least one impedance (Z) is arranged in the current branch of sub-switch element (S).
11. a kind of electronics afterflow arc extinguishing auxiliary system (E) has and is assisted according to the afterflow arc extinguishing of any one of the claims
Device (1) and the over-voltage protection element (USE) to be monitored.
12. electronics afterflow arc extinguishing auxiliary system (E) according to claim 11, which is characterized in that the system can be pacified
Dress is on circuit boards.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016210626 | 2016-06-15 | ||
| DE102016210626.0 | 2016-06-15 | ||
| DE102016211628.2A DE102016211628A1 (en) | 2016-06-15 | 2016-06-28 | Electronic follow-on power extinguishing aid |
| DE102016211628.2 | 2016-06-28 | ||
| PCT/EP2017/064522 WO2017216218A1 (en) | 2016-06-15 | 2017-06-14 | Electronic follow current extinguishing aid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109314370A true CN109314370A (en) | 2019-02-05 |
| CN109314370B CN109314370B (en) | 2020-11-06 |
Family
ID=60481045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780037118.3A Active CN109314370B (en) | 2016-06-15 | 2017-06-14 | Electronic follow-current arc extinguishing auxiliary device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3472903B1 (en) |
| CN (1) | CN109314370B (en) |
| DE (1) | DE102016211628A1 (en) |
| WO (1) | WO2017216218A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102023102619B3 (en) | 2023-02-02 | 2024-03-07 | Dehn Se | Surge arrester for a direct current network and method for operating such a surge arrester |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1590127A1 (en) * | 1966-06-23 | 1970-01-22 | Bbc Brown Boveri & Cie | Control device |
| CN102273035A (en) * | 2009-01-12 | 2011-12-07 | 菲尼克斯电气公司 | Overvoltage protector |
| CN103703637A (en) * | 2011-08-12 | 2014-04-02 | 凤凰通讯两合有限公司 | Overvoltage protection device with measuring device for monitoring overvoltage protection elements |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202007018507U1 (en) | 2007-01-04 | 2008-09-11 | Dehn + Söhne Gmbh + Co. Kg | Overvoltage protection device for use in DC networks, especially for photovoltaic systems |
| SI23303A (en) | 2010-02-19 | 2011-08-31 | ISKRA ZAĹ ÄŚITE d.o.o. | Overvoltage arrester with rotating disk and electronic component for improvement of operation reliability |
| DE102013113605A1 (en) * | 2013-12-06 | 2015-06-11 | General Electric Co. | Arc attenuation arrangement and arrangement method for avoiding a landslide |
| US9570901B2 (en) * | 2014-02-17 | 2017-02-14 | Eaton Corporation | Electronic circuit and low voltage arc flash system including an electromagnetic trigger |
| DE202015100860U1 (en) * | 2015-02-23 | 2015-03-11 | Phoenix Contact Gmbh & Co. Kg | Board-mountable modular surge protection device |
-
2016
- 2016-06-28 DE DE102016211628.2A patent/DE102016211628A1/en not_active Withdrawn
-
2017
- 2017-06-14 WO PCT/EP2017/064522 patent/WO2017216218A1/en unknown
- 2017-06-14 CN CN201780037118.3A patent/CN109314370B/en active Active
- 2017-06-14 EP EP17730140.5A patent/EP3472903B1/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1590127A1 (en) * | 1966-06-23 | 1970-01-22 | Bbc Brown Boveri & Cie | Control device |
| CN102273035A (en) * | 2009-01-12 | 2011-12-07 | 菲尼克斯电气公司 | Overvoltage protector |
| CN103703637A (en) * | 2011-08-12 | 2014-04-02 | 凤凰通讯两合有限公司 | Overvoltage protection device with measuring device for monitoring overvoltage protection elements |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017216218A1 (en) | 2017-12-21 |
| EP3472903A1 (en) | 2019-04-24 |
| CN109314370B (en) | 2020-11-06 |
| DE102016211628A1 (en) | 2017-12-21 |
| EP3472903B1 (en) | 2022-11-30 |
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