EP3472903A1 - Elektronische folgestromlöschhilfe - Google Patents
Elektronische folgestromlöschhilfeInfo
- Publication number
- EP3472903A1 EP3472903A1 EP17730140.5A EP17730140A EP3472903A1 EP 3472903 A1 EP3472903 A1 EP 3472903A1 EP 17730140 A EP17730140 A EP 17730140A EP 3472903 A1 EP3472903 A1 EP 3472903A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- current
- electronic
- follow
- üse
- overvoltage 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.)
- Granted
Links
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 239000004065 semiconductor Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- MOVRNJGDXREIBM-UHFFFAOYSA-N aid-1 Chemical compound O=C1NC(=O)C(C)=CN1C1OC(COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C(NC(=O)C(C)=C2)=O)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)COP(O)(=O)OC2C(OC(C2)N2C3=C(C(NC(N)=N3)=O)N=C2)CO)C(O)C1 MOVRNJGDXREIBM-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 238000005286 illumination Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000012217 deletion Methods 0.000 description 2
- 230000037430 deletion Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000004397 blinking Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
Definitions
- the invention relates to an electronic follow current extinguishing aid.
- overvoltage protection devices Numerous overvoltage protection devices are known from the prior art. Depending on the application, different overvoltage protection devices are used.
- spark gaps are used as overvoltage protection device.
- spark gaps but also with other overvoltage protection devices
- the device presented there proves to be disadvantageous since the short circuit initiated by the semiconductor is always the same length, regardless of whether the spark gap is already erased or not.
- this forced short circuit has a strong repercussion on the system to be protected, even if the follow current is small and the spark gap could be erased much faster.
- the transistor is unnecessarily loaded so that it ages relatively quickly and the life of the device is limited.
- a device in which, parallel to a gas discharge tube (GDT), a temperature-variable resistor having a positive coefficient (PTC) is switched. Due to the self-heating of the GDT during the follow-on current, the PTC is heated up and thus becomes conductive. The current then commutates to the PTC and the tracking current through the GDT can go out.
- GDT gas discharge tube
- PTC temperature-variable resistor having a positive coefficient
- the thermal coupling proves to be disadvantageous because it is very sluggish. Therefore, the GDT must conduct the follow current for a relatively long time before the PTC is sufficiently conductive. Thereafter, the PTC is conductive for a longer time until the cooling has taken place. That both elements are subject to rapid aging.
- FIG. 1 shows a first schematic circuit diagram of an embodiment according to the invention
- Fig. 2 is a first schematic circuit diagram representation of another
- Embodiments according to the invention 3 is a generalized representation of the principle of operation according to embodiments of the invention.
- FIG. 4 shows a generalized illustration of a further aspect according to FIG.
- Fig. 5 shows another aspect of the invention.
- an electronic follow current extinguishing aid 1 has various elements for an overvoltage protection element USE to be monitored.
- the extinguishing aid is not only suitable for a gas-filled surge arrester but also for other overvoltage protection elements USE which generate a luminous appearance when they perform their task.
- the invention also be operated with a spark gap.
- the Folgestromlösch Anlagen invention 1 has at least one monitoring element O, which optically detects the onset and exposition of the current flow through the overvoltage protection element UEE.
- the progressive current extinguishing aid 1 has an electronic switching element S, which is connected in parallel with the overvoltage protection element USE.
- the electronic switching element S is controlled by the monitoring element O, wherein the electronic switching element S closes at a recognized insertion of a Netz Steinstromes by the overvoltage protection element ÜSE, so that when the arc in the overvoltage protection element ÜSE extinguished the electronic switching element S opens, so that no more current flows through the electronic switching element S.
- the electronic follow-current extinguishing aid 1 is board-mountable. That It can easily be integrated in a normal manufacturing process and allows cost-effective integration.
- a telecommunication device which signals the onset and exposition of the overvoltage protection function.
- the switching behavior / response of ÜSE Studentsnapssschutzeicardi can be detected remotely and, for. depending on the frequency per time or the number of events a check can be arranged.
- the reliability is increased.
- a telecommunication device is further provided which signals the switching of the electronic switching element S. That The function of the electronic follow current extinguishing aid 1 can thus also be monitored and ensured.
- the switching behavior / response of the electronic switching element S can be remotely recognized and e.g. depending on the frequency per time or the number of events a check can be arranged. As a result, the reliability is increased.
- the invention can be operated in conjunction with direct current. Especially with DC currents, the problem of network sequencers that can not be erased easily occurs. However, similar problems occur with high performance AC grids.
- the electronic sequential current extinguishing aid 1 can be used in environments in which temperatures of less than -50 ° C. and more than 125 ° C. prevail.
- the electronic follow current extinguishing aid 1 can be equipped with a wide variety of switching elements S.
- the electronic switching element S may comprise a semiconductor switch, in particular a field-effect transistor and / or a bipolar transistor.
- FIGS. 1 and 2 show an IGBT (insulated-gate bipolar transistor) as an electronic switching element S.
- the electronic follow-current extinguishing aid 1 can be equipped with a wide variety of monitoring elements O for optical recognition.
- the monitoring element O may comprise at least one element selected from the group photoresistor, photodiode, phototransistor, photovoltaic element.
- FIGS. 1 and 2 a photodiode is shown as monitoring element O.
- the electronic follow current extinguishing aid 1 on the protected side can have at least one inductive element L L , L s for coordination with the overvoltage protection elements present in the device to be protected.
- an electronic follow-current extinguishing aid ensemble E which, in addition to the already described electronic follow current extinguishing aid 1, also has the overvoltage protection element ÜSE to be monitored.
- the electronic follow-current extinguishing aid ensemble E can also be fitted with circuit boards. That It can easily be integrated in a normal manufacturing process and allows cost-effective integration.
- the invention makes use of the fact that in the case of the response of the overvoltage protection element ÜSE a luminous effect occurs. This lighting effect is optically detected.
- a further control for example in the form of a microcontroller or counter may additionally be provided, as can be seen, for example, from FIG. 1 or FIG. So, for example, that Blinking be evaluated in terms of duration and / or frequency, so that, for example, the electronic switching element S is activated only upon reliable detection of a subsequent current, whereby the switching element S is protected from overvoltages.
- the microcontroller can also provide the function of the remote message.
- a passive delay (integrating element, RC circuit, LC circuit, etc.) which, for example, activates the switching element S only after a predetermined time, for example 1 ms, in order to allow the overvoltage protection element ÜSE sufficient time give 10/350 ⁇ pulse currents (eg 10/350 ⁇ ) completely dissipate.
- a parallel path can be activated electronically or instantaneously via the electronic switching element S, e.g. in which the parallel path becomes conductive. As soon as the overvoltage protection element has cleared ÜSE and no lights are available, the parallel path is deactivated.
- a photodiode is operated as monitoring elements O.
- the caused by the illumination of the photo-diode photocurrent (l p ) causes the negative feedback resistor R N a voltage drop.
- the negative feedback resistor R N is selected here, for example, relatively high (20 ⁇ ), in order to achieve the highest possible output signal even at very low illumination. As a result, a slight illumination of the overvoltage protection element ÜSE is already detected.
- the monitoring element O can be independently integrated in addition to the overvoltage protection element ÜSE or else in the overvoltage protection element ÜSE.
- the output voltage at the monitoring element O or at the negative feedback resistance R N is proportional to the illuminance, the output voltage is saturated even with low illumination.
- the output signal of the light detection serves as an input signal of the time delay.
- U DC the supply voltage for the circuit is called.
- the current flow through R2 caused by the input voltage drives the npn transistor T1. This will make this conductive. Due to this, the discharging operation of the capacitor C1 starts. If the voltage across the capacitor C1 falls below the reference voltage at R6, the operational amplifier LM258 switches the output OUT2 on. If the connected DC voltage source is short-circuited by the power semiconductor / electronic switching element S (also referred to as T2 in the circuit diagram), a high current flow through the electronic switching element S (also referred to as T2 in the circuit diagram) occurs. This current flow can increase up to the maximum short-circuit current of the DC voltage source.
- the electronic switching element S in the circuit diagram also referred to as T2 now transferred back to the blocking state, the flowing current changes rapidly to zero. This change in current can lead to voltage peaks due to parasitic inductances in the DC grid. If these voltage peaks are high enough, it could lead to a further ignition of the overvoltage protection element ÜSE. In order to avoid this, as shown in FIG. 1, the electronic switching element S (also referred to as T2 in the circuit diagram) can only be converted again slowly into the blocking state. For this purpose, the output signal of the time delay can be modulated accordingly.
- the capacitance C3 can be charged quickly via the resistor R8, in order to achieve a rapid increase of the output voltage and thus a rapid switching on of the by the electronic switching element S (also referred to as T2 in the circuit diagram). If there is no voltage at the input side, the capacitor C3 discharges via the resistor R9. Since this resistor R9 is dimensioned comparatively large, the discharge of the capacitor takes a correspondingly long time. Thus, a fast charging and a slow discharge of the capacitance C3 is provided, which corresponds to a rapid increase and a slow decrease of the output voltage U a .
- the circuit can also have a voltage stabilization to 30 V for the supply of the electronic components.
- a diode D3 can be used.
- the voltage stabilization may include, for example, a Zener diode D6, which is operated in the breakdown region and is therefore installed in the reverse direction.
- the voltage stabilization can have a series resistor R9 which limits the current flowing through the circuit. This resistor R9 should not be oversized because the current flow should be large enough to reach the working point of the diode.
- the voltage stabilization may have a capacitance C2. This capacitor C2 has the task of providing short-circuited DC voltage source still enough energy for the electronic components to ensure their further function. As protection against reverse discharge of this capacity, the diode D2 is used.
- IGBT as electronic switching element S is advantageous since IGBTs have a high current carrying capacity at low residual voltage and high breakdown voltage.
- an impedance Z can be arranged in the current branch of the electronic switching element.
- the impedance Z can have both resistive and inductive character.
- FIG. 5 this is shown in which an impedance Z for circuit coordination is arranged in the current branch to the electronic switching element S.
- the supply side is arranged on the right side and the load side on the left side. If a subsequent current subsequently occurs in response to an overvoltage event which has led to an ignition of the overvoltage protection element ÜSE and indirectly to a switching of the electronic switching element S, the current is limited by the impedance Z.
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016210626 | 2016-06-15 | ||
DE102016211628.2A DE102016211628A1 (de) | 2016-06-15 | 2016-06-28 | Elektronische Folgestromlöschhilfe |
PCT/EP2017/064522 WO2017216218A1 (de) | 2016-06-15 | 2017-06-14 | Elektronische folgestromlöschhilfe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3472903A1 true EP3472903A1 (de) | 2019-04-24 |
EP3472903B1 EP3472903B1 (de) | 2022-11-30 |
Family
ID=60481045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17730140.5A Active EP3472903B1 (de) | 2016-06-15 | 2017-06-14 | Elektronische folgestromlöschhilfe |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3472903B1 (de) |
CN (1) | CN109314370B (de) |
DE (1) | DE102016211628A1 (de) |
WO (1) | WO2017216218A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102023102619B3 (de) | 2023-02-02 | 2024-03-07 | Dehn Se | Überspannungsableiter für ein Gleichstromnetz und Verfahren zum Betreiben eines solchen Überspannungsableiters |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1590127A1 (de) * | 1966-06-23 | 1970-01-22 | Bbc Brown Boveri & Cie | Steuervorrichtung |
DE202007018507U1 (de) | 2007-01-04 | 2008-09-11 | Dehn + Söhne Gmbh + Co. Kg | Überspannungsschutzeinrichtung für den Einsatz in Gleichstromnetzen, insbesondere für Photovoltaik-Anlagen |
DE102009004673A1 (de) * | 2009-01-12 | 2010-07-15 | Phoenix Contact Gmbh & Co. Kg | Überspannungsschutzelement |
SI23303A (sl) | 2010-02-19 | 2011-08-31 | ISKRA ZAŠČITE d.o.o. | Prenapetostni odklopnik z rotacijskim diskom in elektronskim sklopom za izboljšanje zanesljivosti delovanja |
DE102011052689B4 (de) * | 2011-08-12 | 2016-09-01 | Phoenix Contact Gmbh & Co. Kg | Gasgefüllter Überspannungsableiter mit indirekter Überwachung einer Kurzschlussfeder |
DE102013113605A1 (de) * | 2013-12-06 | 2015-06-11 | General Electric Co. | Lichtbogenabschwächungsanordnung und Anordnungsverfahren zum Vermeiden eines Erdüberschlags |
US9570901B2 (en) * | 2014-02-17 | 2017-02-14 | Eaton Corporation | Electronic circuit and low voltage arc flash system including an electromagnetic trigger |
DE202015100860U1 (de) * | 2015-02-23 | 2015-03-11 | Phoenix Contact Gmbh & Co. Kg | Platinen-bestückbares modulares Überspannungsschutzgerät |
-
2016
- 2016-06-28 DE DE102016211628.2A patent/DE102016211628A1/de not_active Withdrawn
-
2017
- 2017-06-14 WO PCT/EP2017/064522 patent/WO2017216218A1/de unknown
- 2017-06-14 EP EP17730140.5A patent/EP3472903B1/de active Active
- 2017-06-14 CN CN201780037118.3A patent/CN109314370B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE102016211628A1 (de) | 2017-12-21 |
CN109314370A (zh) | 2019-02-05 |
WO2017216218A1 (de) | 2017-12-21 |
EP3472903B1 (de) | 2022-11-30 |
CN109314370B (zh) | 2020-11-06 |
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