BRPI0507310A - telephone / data line overvoltage protection, suitable for installations with poor quality ground connections - Google Patents
telephone / data line overvoltage protection, suitable for installations with poor quality ground connectionsInfo
- Publication number
- BRPI0507310A BRPI0507310A BRPI0507310-3A BRPI0507310A BRPI0507310A BR PI0507310 A BRPI0507310 A BR PI0507310A BR PI0507310 A BRPI0507310 A BR PI0507310A BR PI0507310 A BRPI0507310 A BR PI0507310A
- Authority
- BR
- Brazil
- Prior art keywords
- relay
- installations
- telephone
- overvoltage protection
- line
- Prior art date
Links
Classifications
-
- 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
- H02H3/202—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 for dc systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines
-
- 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
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/80—Electronic components, circuits, software, systems or apparatus used in telephone systems line protection circuits such as current or overvoltage protection circuits
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
PROTEçãO CONTRA SOBRETENSãO EM LINHAS DE TELEFONE/DADOS, ADEQUADA PARA INSTALAçõES COM CONEXõES DE BAIXA QUALIDADE COM A TERRA. Apresente invenção refere-se a um dispositivo de proteção (10) utiliza um relé engatador (11) de bobina única (15) para desacoplar uma instalação de telefone e / ou de dados a partir das linhas transmissão CC (12) no caso de um distúrbio de sobretensão / CA na linha. um circuito disparador (19) e um circuito de reinicialização (21) são respectivamente conectados com os bornes normalmente fechados (OUTA1, OUTB1) e normalmente abertos (OUTA2, OUTB2) dorelé para monitorar a voltagem da linha utilizando uma conexão com a terra como uma voltagem de referência, alimentando, respectivamente, diretas de disparo (23) ou de reinicialização (25) para a bobina para comutar o relé, Por conseqüência, o dispositivo de proteção pode permitir de maneira eficaz uma conexão de alta resistência, barata, com a terra. A direta de reinicialização é alimentada para a bobina do relé por meio de um circuito de transistor (Q1, Q2) somente após o distúrbio ter cessado, após a voltagem de transmissão nominal ter sido restaurada e após a linha ter se estabilizado durante auguns segundos.PHONE / DATA OVERVOLTAGE PROTECTION, SUITABLE FOR INSTALLATIONS WITH LOW QUALITY EARTH CONNECTIONS. The present invention relates to a protective device (10) utilizing a single coil relay (11) relay (15) to decouple a telephone and / or data facility from the DC transmission lines (12) in the case of a overvoltage / AC disturbance on the line. a trip circuit (19) and a reset circuit (21) are respectively connected to normally closed (OUTA1, OUTB1) and normally open (OUTA2, OUTB2) terminals to monitor the line voltage using a ground connection as a reference voltage, respectively by supplying tripping (23) or resetting (25) directives to the coil to switch the relay. As a result, the protective device can effectively enable a cheap, high-resistance connection to the relay. Earth. The reset direct is fed to the relay coil via a transistor circuit (Q1, Q2) only after the disturbance has ceased, after the rated transmit voltage has been restored, and after the line has stabilized for a few seconds.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ARP040100275A AR042973A1 (en) | 2004-01-29 | 2004-01-29 | PROTECTIVE DEVICE AGAINST OVERVOLTAGES IN TELEPHONE AND / OR DATA LINES, SUITABLE FOR INSTALLATIONS WITH GROUNDING OF BAD QUALITY, AND METHOD TO PROTECT A TELEPHONE AND / OR DATA LINE. |
PCT/GB2005/000252 WO2005074241A1 (en) | 2004-01-29 | 2005-01-25 | Overvoltage protection in telephone/data lines, suitable for installations with low-quality earth connections |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0507310A true BRPI0507310A (en) | 2007-06-26 |
Family
ID=37450734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0507310-3A BRPI0507310A (en) | 2004-01-29 | 2005-01-25 | telephone / data line overvoltage protection, suitable for installations with poor quality ground connections |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1709786A1 (en) |
AR (1) | AR042973A1 (en) |
BR (1) | BRPI0507310A (en) |
MX (1) | MXPA06008534A (en) |
PE (1) | PE20060181A1 (en) |
WO (1) | WO2005074241A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602008001972D1 (en) * | 2008-05-29 | 2010-09-09 | Cirprotec S L | Combined electrical protection against transient, temporal and widespread overvoltages |
CN106681943B (en) * | 2016-12-15 | 2023-06-09 | 南京航空航天大学 | Device for preventing motor operation from interfering data acquisition serial port transmission |
CN112086946B (en) * | 2020-08-13 | 2024-03-19 | 珠海亿智电子科技有限公司 | High voltage resistant clamp circuit with alternating current detection and direct current detection |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1260171A (en) * | 1987-05-15 | 1989-09-26 | Reinhard W. Rosch | Protection arrangement for a telephone subscriber line interface circuit |
FR2619262B1 (en) * | 1987-08-06 | 1994-09-23 | Crouzet Sa | DEVICE FOR PROTECTING AN EQUIPMENT AGAINST INDUCED OVERVOLTAGES ON A LINE WHICH IS CONNECTED |
US5146384A (en) * | 1989-04-28 | 1992-09-08 | Northern Telecom Limited | Automatically resetting protection arrangement for a telephone subscriber line interface circuit |
US5392349A (en) * | 1992-05-18 | 1995-02-21 | At&T Corp. | Overvoltage protection scheme for subscriber loops and method of performing same |
-
2004
- 2004-01-29 AR ARP040100275A patent/AR042973A1/en unknown
-
2005
- 2005-01-25 WO PCT/GB2005/000252 patent/WO2005074241A1/en not_active Application Discontinuation
- 2005-01-25 MX MXPA06008534A patent/MXPA06008534A/en not_active Application Discontinuation
- 2005-01-25 EP EP05702013A patent/EP1709786A1/en not_active Withdrawn
- 2005-01-25 BR BRPI0507310-3A patent/BRPI0507310A/en not_active IP Right Cessation
- 2005-01-28 PE PE2005000111A patent/PE20060181A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AR042973A1 (en) | 2005-07-13 |
WO2005074241A1 (en) | 2005-08-11 |
PE20060181A1 (en) | 2006-04-10 |
EP1709786A1 (en) | 2006-10-11 |
MXPA06008534A (en) | 2006-08-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE A 5A E 6A ANUIDADES |
|
B08K | Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87) |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2099 DE 29/03/2011. |