WO2013087443A1 - Parafoudre tripolaire integre dans une passerelle residentielle avec detecteur d'impact de foudre - Google Patents
Parafoudre tripolaire integre dans une passerelle residentielle avec detecteur d'impact de foudre Download PDFInfo
- Publication number
- WO2013087443A1 WO2013087443A1 PCT/EP2012/074274 EP2012074274W WO2013087443A1 WO 2013087443 A1 WO2013087443 A1 WO 2013087443A1 EP 2012074274 W EP2012074274 W EP 2012074274W WO 2013087443 A1 WO2013087443 A1 WO 2013087443A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- line
- component
- lightning
- additional components
- earth
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
Definitions
- Tripolar arrester built into a residential gateway with lightning impact sensor
- the invention relates to an electronic apparatus provided with means for protection against lightning overvoltages.
- Electronic devices of the "residential gateway” or “modem” type or more generally, electronic devices making it possible to transfer data between a telephone line and any terminal, such as a computer, must be protected against lightning strikes that may occur on electronic devices. conductive elements of the telephone line.
- the ITU-T K.21 recommendations define reference waveforms representative of lightning impacts. These waveforms are pulses of maximum amplitude 1.5 kilovolt (kV) in common mode for the so-called “K.21 normal level” wave, or 6.0 kilovolt (kV) for the so-called “K” wave. .21 enhanced level Colour
- the design of a lightning protection thus consists in providing means enabling the device to support one or the other of these waveforms without damage.
- a residential gateway is electrically powered by a power supply unit, itself connected to a electrical network type 230 Volt or 110 Volt, and it is also connected to a DSL line typically having two conductive elements.
- This gateway includes in particular so-called front-end internal components (for example AFE-type Analog Front End components) coupled to the DSL line and which must be protected from lightning.
- front-end internal components for example AFE-type Analog Front End components
- the electric ground can be brought to substantially the same potential as the conductive elements of the DSL line, it is that is to say a potential close to that of the overvoltage, ie, in the case of a K.21 enhanced waveform, at 6.0 kV.
- the other components of the gateway that are connected to ground are subjected to a potential substantially equal to 6.0 kV. This is particularly the case of the Ethernet port components of such a gateway.
- the components of an Ethernet port are sized to withstand pulses of maximum amplitude 1.5 kV in common mode (K.21 normal level).
- K.21 normal level the surge of 6.0 kV which is imposed on the ground in the event of lightning, makes it possible to protect the frontal components of the gateway, but it causes nevertheless one damage of the Ethernet port if the bridge is not connected to Earth.
- the object of the invention is to propose an architecture for effectively protecting the components of such a device the effects of a lightning strike on the line to which such a device is connected, including when this device is not connected to the ground.
- an electronic device powered by a power supply unit connected to a mains power supply, intended for being connected to a transmission line comprising two conductive elements and to a terminal for transferring data between the line and the terminal, this apparatus comprising:
- a front component coupled to the line through an isolation transformer
- an evacuation component such as a three-pole gas spark gap, connected to the conductive elements of the line and which turns on in the event of an overvoltage due to lightning of the line, to cancel this overvoltage by establishing a current flowing from the line to earth to protect the downstream components of this protection such as the transformer or the front-end component;
- a capacitive and / or resistive type divider component interposed between the evacuation component and the electrical earth, to constitute, with the power supply unit and / or one or more of the additional components, a divider bridge by which the voltage imposed on the weight of the device in case of lightning is less than the overvoltage of the conductive elements of the line so as to also protect the additional components.
- the downstream components are protected by the three-pole spark gap.
- the current is discharged to this electrical ground.
- the divider component constitutes with the power supply unit and / or the additional components a voltage divider bridge which makes it possible to limit the voltage imposed on the electrical ground and therefore on the terminals of the additional components of the apparatus which are exposed to lightning by the fact that they are connected to the electrical ground of the device.
- FIG. 1 schematically represents an electrical circuit of a residential gateway of
- FIGS. 2a and 2b show equivalent capacitive electrical diagrams related to a common point C of the electrical circuit of the gateway of the invention
- FIG. 3 represents a capacitive equivalent electrical diagram related to the common point C of the electrical circuit of the gateway of the invention, when the earth is not connected to the gateway;
- FIG. 4 schematically represents an electrical circuit of a residential gateway of the invention which furthermore comprises two current sensors and a photodiode.
- the idea underlying the invention is to control the level of voltage experienced by the electrical ground of the equipment during a lightning strike by the addition of a divider component without compromising on the performance of the equipment in nominal operation.
- This divider component is used to weight the energy distribution, on the one hand between the telephone line and the electrical ground of the equipment, and on the other hand, between the mass of the equipment and the ground.
- a residential gateway 1 of the invention comprises an electric circuit 2 of the invention, which is connected via a DSL line 3 and a telephone jack 4 to a telephone line 5.
- the DSL line 3 comprises two conductive elements 6, 7 carrying the digital data.
- the residential gateway 1 is also connected to a set-top box 9, cooperating with the residential gateway 1 via an Ethernet line 16.
- the gateway 1 To galvanically isolate the gateway 1 and to ensure communications with the telephone line 5 and the Ethernet line 16 by filtering noise, the gateway 1 comprises:
- the set-top box 9 comprises an isolation transformer 33 and a capacitor C3.
- the electrical circuit 2 of the residential gateway 1 is electrically powered by a mains unit 10, itself connected to a 230 volt or 110 volt type network.
- a power cable 21 connects the gateway 1 and the power supply unit 10.
- This power supply cable comprises a power supply element 22 carrying a supply voltage, here 12 V, and a reference conductive element 23 carrying a voltage 0V.
- a three-pole spark gap 11, comprising two phase electrodes 12, 13 each connected to a conductive element 6, 7 of the DSL line 3 and a ground electrode 14 connected to an electrical ground 15 through a series capacitor C 4 of the gateway, protects electrical components (20, 8) coupled to the DSL line 3 and additional components (30, C1, C2, C5) connected to the ground electrical 15 lightning strikes occurring on the telephone line 5.
- Capacitive capacitance coupling C5 has also been shown at the level of the mains block between an electric ground 18 and the reference conducting element 23.
- the capacitances Ci a , Ci b , C 2 , C 3 , C 4 and C 5 form a bridge which makes it possible to divide the voltage imposed on the electrical ground 15 when a lightning strike occurs on the telephone line 15, and the bridge 1 is not connected to the electrical ground 18.
- Vmax the maximum voltage that can be applied to the terminals of this component without being damaged.
- gateway 1 of the invention For applications of the type of gateway 1 of the invention, it is possible to choose components having maximum voltages as defined below:
- capacitors Ci a and Ci b sized for the K21 enhanced level waveform, i.e. having a voltage Vmax greater than 6.0 kV;
- a transformer 8 which has a voltage Vmax substantially equal to the maximum amplitude of the waveform K21 normal level, ie 6.0 kV;
- K.21 normal level approximately 2.0 kV
- isolation transformers 30 and 33 of the Ethernet link which have a voltage V max close to 8.0 kV. It is particularly interesting to choose the value of the capacitance C4 to ensure that, when a lightning strike occurs creating a maximum overvoltage, that is to say, for the gateway 1, equal to the maximum amplitude of the waveform K21 enhanced level, the voltage imposed on the electrical ground 15 is divided so that the voltage applied across the electrical components remains below their V max .
- C 4 it is better to know the number of devices that will be connected to the gateway 1. But most of the time, the user has the opportunity to choose the number of devices he wants to connect at the bridge. The dimensioning of C4 can then be done taking into account the maximum number of connected devices (equal for example to the number of Ethernet ports present on the gateway), or taking into account the number of connected devices most frequently (one or two equipment in practice).
- Ci a Ci, C 2 , C 3 , C 5:
- Ci b 45 picofarad (mp);
- FIG. 2a illustrates the divider bridge seen at a common point C at the potential of the electrical ground 15, when no equipment is connected to the gateway 1 by Ethernet link (this may be the case for a gateway adapted to transmitting data only by wireless link).
- the transformer 8 of the DSL line only supports a V max of 6.0 kV, it is possible to subject the gateway to a surge of 12.0 kV.
- FIG. 2b illustrates the divider bridge seen at point C when a single device, here the set-top box 9, is connected to the gateway 1 by Ethernet link.
- a single device here the set-top box 9
- V max the maximum voltage
- components C2 and C3 which both have a maximum voltage V ma x, for example 6kV, higher than their usual voltage V max , of about 2.0 kV.
- V ma x for example 6kV
- V max usual voltage
- the robustness to lightning impacts of a system consisting of the gateway and the set-top box is increased by dimensioning a single component per equipment.
- the choice to increase the maximum voltage of the component C2 alone is certainly less advantageous than the C2 and C3 pair but makes it possible to ensure the robustness of the gateway alone.
- the gateway 1 it is also possible to provide a connection of the gateway 1 to the electrical ground 18.
- the current is directly discharged to the electrical ground 18, and the electric mass 15 is not subjected no surge.
- said "two-conductor" arrangement consists in connecting the reference conductive element 23 to the electrical ground 18 at the sector block 10;
- three-conductor arrangement consists in adding to the power supply cable 21 a third conductive element 24 (shown in dashed lines in FIG. 1) for bringing the electric ground 18 back to the gateway 1.
- FIG. 3 illustrates the divider bridge seen at point C when the set-top box 9 is connected to the gateway 1 by Ethernet link, and a connection to the ground is provided according to the three-conductor arrangement but the installation does not include no land. It is important to consider the contribution of capacitance C6 in the design of the divider bridge. Advantageously, it is even possible to size the bridge to replace the capacity C 4 by the capacity e, which saves the cost of a capacitor.
- the capacitance value of the capacitor C4 has been chosen equal to 910 pf, but the invention of course provides for the use of a capacitor C4 of different capacitance, preferably between 200 pf and 2 nf. In particular, it is desirable to optimize this value when it is planned to connect several devices to the gateway (a greater capacity value will be chosen if the number of devices is high).
- the gateway according to the invention is equipped with means enabling it to count and memorize the number of impacts of lightning that it has suffered during its lifetime.
- This information may later be used by the after-sales service, the telephone operator, or other to intervene on the bridge, or change it preventively when it has suffered a number of lightning strikes deemed too important.
- FIG. 4 shows a photodiode 40 mounted at near the spark gap 11, that is to say in a region of the bridge 1 in which the light arc created by the passage of the current in the spark gap 11 occurring when the telephone line 5 is knocked down can be detected.
- the photodiode 40 detects the lightning strikes and transmits information indicating that an impact has occurred to a processor 41 equipped with a memory 42. This information can then be read by a technician, either by opening the gateway 1 or by connecting a particular connector to it.
- a current sensor 43 for detecting an evacuated current when a lightning strike occurs, or to obtain a current measurement, usable in particular for counting the lightning strikes.
- a current sensor 43 is illustrated in FIG. 4.
- This sensor 43 comprises a current transformer 44 whose primary is connected in series with the capacitor C4 so as to create in the secondary an image current of that, and means of acquisition 45 for transforming the current into a voltage and then measuring this voltage.
- this current sensor may well be a different technology sensor, Hall effect for example.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12794722.4A EP2792040B1 (fr) | 2011-12-12 | 2012-12-03 | Parafoudre tripolaire integre dans une passerelle residentielle avec detecteur d'impact de foudre |
BR112014013016-7A BR112014013016B1 (pt) | 2011-12-12 | 2012-12-03 | Aparelho eletrônico energizado por unidades de fornecimento de energia conectadas a rede de eletricidade e sistema compreendendo tal aparelho |
US14/364,233 US9257828B2 (en) | 2011-12-12 | 2012-12-03 | Three-pole lightning arrestor integrated into a residential gateway with lightning impact detector |
CN201280060180.1A CN103988383B (zh) | 2011-12-12 | 2012-12-03 | 集成进带有雷电冲击检测器的住宅网关的三极避雷器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1161484 | 2011-12-12 | ||
FR1161484A FR2984031B1 (fr) | 2011-12-12 | 2011-12-12 | Parafoudre tripolaire integre dans une passerelle residentielle avec detecteur d'impact de foudre |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013087443A1 true WO2013087443A1 (fr) | 2013-06-20 |
Family
ID=47278309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2012/074274 WO2013087443A1 (fr) | 2011-12-12 | 2012-12-03 | Parafoudre tripolaire integre dans une passerelle residentielle avec detecteur d'impact de foudre |
Country Status (6)
Country | Link |
---|---|
US (1) | US9257828B2 (fr) |
EP (1) | EP2792040B1 (fr) |
CN (1) | CN103988383B (fr) |
BR (1) | BR112014013016B1 (fr) |
FR (1) | FR2984031B1 (fr) |
WO (1) | WO2013087443A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108206513A (zh) * | 2016-12-19 | 2018-06-26 | 孙麓轩 | 浪涌保护器及浪涌保护系统 |
US11522362B2 (en) | 2018-08-09 | 2022-12-06 | Epspot Ab | Control device for handling the transfer of electric power |
US11777298B2 (en) | 2020-07-13 | 2023-10-03 | Sean O'Reilly | Lightning diverter system and methods |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2261293A (en) * | 1991-09-27 | 1993-05-12 | Mitsubishi Materials Corp | Surge counter |
WO2004006408A1 (fr) * | 2002-07-02 | 2004-01-15 | Fultec Pty Ltd | Appareil de protection et d'indication |
WO2006031158A1 (fr) * | 2004-09-16 | 2006-03-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Circuit de protection contre les surtensions destine a la communication de signaux numeriques a l'interieur d'un batiment |
GB2421860A (en) * | 2004-12-29 | 2006-07-05 | Hewlett Packard Development Co | Common mode surge protection filter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE50113240D1 (de) * | 2000-10-25 | 2007-12-20 | Huber+Suhner Ag | Störschutzfilter- und blitzstromableiter-einrichtung |
US20040264087A1 (en) * | 2003-06-30 | 2004-12-30 | Bishop Roger S | Transient protector for wireless communications equipment |
US20060232906A1 (en) * | 2005-03-03 | 2006-10-19 | Yoshiharu Sueoka | Surge detector/counter |
TWI318814B (en) * | 2006-08-14 | 2009-12-21 | Giga Byte Tech Co Ltd | Connection apparatus and high voltage impulse protection methods thereof |
CN101540683B (zh) * | 2008-03-17 | 2011-05-11 | 华为技术有限公司 | 一种接口电路以及一种通信设备 |
CN201438602U (zh) * | 2009-03-11 | 2010-04-14 | 深圳市海鹏信电子股份有限公司 | 宽带射频防雷器 |
TWM396531U (en) * | 2010-08-16 | 2011-01-11 | Tuton Technology Co Ltd | Improved connector structure with protection device |
-
2011
- 2011-12-12 FR FR1161484A patent/FR2984031B1/fr not_active Expired - Fee Related
-
2012
- 2012-12-03 US US14/364,233 patent/US9257828B2/en active Active
- 2012-12-03 BR BR112014013016-7A patent/BR112014013016B1/pt active IP Right Grant
- 2012-12-03 EP EP12794722.4A patent/EP2792040B1/fr active Active
- 2012-12-03 WO PCT/EP2012/074274 patent/WO2013087443A1/fr active Application Filing
- 2012-12-03 CN CN201280060180.1A patent/CN103988383B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2261293A (en) * | 1991-09-27 | 1993-05-12 | Mitsubishi Materials Corp | Surge counter |
WO2004006408A1 (fr) * | 2002-07-02 | 2004-01-15 | Fultec Pty Ltd | Appareil de protection et d'indication |
WO2006031158A1 (fr) * | 2004-09-16 | 2006-03-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Circuit de protection contre les surtensions destine a la communication de signaux numeriques a l'interieur d'un batiment |
GB2421860A (en) * | 2004-12-29 | 2006-07-05 | Hewlett Packard Development Co | Common mode surge protection filter |
Also Published As
Publication number | Publication date |
---|---|
EP2792040B1 (fr) | 2019-05-01 |
CN103988383B (zh) | 2017-02-08 |
CN103988383A (zh) | 2014-08-13 |
BR112014013016A2 (pt) | 2017-06-13 |
BR112014013016B1 (pt) | 2021-10-05 |
EP2792040A1 (fr) | 2014-10-22 |
FR2984031B1 (fr) | 2013-11-22 |
US9257828B2 (en) | 2016-02-09 |
FR2984031A1 (fr) | 2013-06-14 |
US20140355164A1 (en) | 2014-12-04 |
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