WO2002080124A2 - Sistema de alarma sonora de prevención de puesta a tierra en celdas de alta tensión - Google Patents
Sistema de alarma sonora de prevención de puesta a tierra en celdas de alta tensión Download PDFInfo
- Publication number
- WO2002080124A2 WO2002080124A2 PCT/ES2002/000140 ES0200140W WO02080124A2 WO 2002080124 A2 WO2002080124 A2 WO 2002080124A2 ES 0200140 W ES0200140 W ES 0200140W WO 02080124 A2 WO02080124 A2 WO 02080124A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- audible alarm
- high voltage
- alarm system
- voltage
- earthing
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
- G01R19/155—Indicating the presence of voltage
Definitions
- the present invention relates to an alarm system that has been specially designed to prevent improper grounding maneuvers of a high voltage cell, when it is under tension.
- the object of the invention is to achieve an audible and effective alarm, which indicates to the operator unequivocally that he is trying to perform an improper operation, so that before carrying it out he takes the appropriate security measures, specifically disconnecting the cell from the source tensile.
- the equipment that is installed in the high voltage networks allows to perform functions of connection and disconnection of the network, as well as grounding of different parts of it.
- the alarm system that the invention proposes solves in a fully satisfactory way the above-mentioned problem, not only based on the sound signaling itself, which by its very nature cannot go unnoticed, but also and fundamentally because said signaling occurs when the operator is going to perform an improper operation, for example a grounding maneuver under voltage conditions, that is, the alarm signaling occurs before the maneuver grounding has been performed, which allows the operator to interrupt this maneuver and proceed, before starting it, to eliminate the voltage in the cell.
- the system therefore, is not a simple signaling system for a dangerous condition in the network, but is an alarm system that is only activated when, under certain network conditions, the operator initiates an improper operation.
- the device is based on the use of a microswitch, established in the power supply circuit of the audible alarm, a microswitch that is normally kept open and that is closed by the operating lever of the earthing switch. in the maneuver of introducing said lever, obviously prior to actuation of the disconnector.
- the audible alarm is fed at the expense of the high voltage line, so that for the signaling to occur two circumstances must occur simultaneously, that there is voltage on the line and that the drive lever is inserted into the earthing switch.
- the presence of the passive or capacitive and / or resistive coupling on the high-voltage line itself is provided, which provides the energy necessary for the operation of the audible alarm, when the microswitch closes.
- the audible alarm it will preferably materialize in an oscillator combined with a piezoelectric buzzer that constitute a resonant circuit.
- Figure 1 Shows a schematic representation of the basic constitution of a sound alarm system for preventing grounding in high voltage cells, carried out in accordance with the object of the present invention.
- Figure 2. Shows the block diagram corresponding to the alarm system of the previous figure.
- This microswitch (4) is activated by the actuation lever (5) of the cell's earthing switch, in the same maneuver of coupling said lever to the disconnector axis, so that the signaling occurs before starting the Switching operation of the disconnector, that is before the grounding occurs in the cell.
- the audible alarm (1) will be realized in an oscillator (6) and a ceramic piece of piezoelectric material (7), constituting a controlled resonant circuit that vibrates at regular intervals, getting that the discharge of the condenser (8), which is part of said storage and filtering block, is prolonged in time and allows it to be noticeably noticeable.
- the classic optical signaling device (9), indicative of the presence of voltage in the line (2) and also connected to the capacitive bushing (3), will act as a conventional complementary signaling device that allows the operator to eliminate the voltage on the line (2) before starting the cell grounding maneuver, so that the sound signaling will only occur when the optical signaling goes unnoticed to the operator.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Alarm Devices (AREA)
- Emergency Protection Circuit Devices (AREA)
- Burglar Alarm Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60236355T DE60236355D1 (de) | 2001-03-30 | 2002-03-21 | Hörbares warnsystem zum verhindern der erdung in hochspannungszellen |
AT02716854T ATE467843T1 (de) | 2001-03-30 | 2002-03-21 | Hörbares warnsystem zum verhindern der erdung in hochspannungszellen |
EP02716854A EP1382972B1 (en) | 2001-03-30 | 2002-03-21 | Audible alarm system to prevent earthing in high-voltage cells |
AU2002247777A AU2002247777A1 (en) | 2001-03-30 | 2002-03-21 | Audible alarm system to prevent earthing in high-voltage cells |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES200100754A ES2184604B1 (es) | 2001-03-30 | 2001-03-30 | Sistema de alarma sonora de prevencion de puesta a tierra en celdas de alta tension. |
ESP200100754 | 2001-03-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002080124A2 true WO2002080124A2 (es) | 2002-10-10 |
WO2002080124A3 WO2002080124A3 (es) | 2002-12-05 |
Family
ID=8497288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2002/000140 WO2002080124A2 (es) | 2001-03-30 | 2002-03-21 | Sistema de alarma sonora de prevención de puesta a tierra en celdas de alta tensión |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1382972B1 (es) |
CN (1) | CN1283999C (es) |
AT (1) | ATE467843T1 (es) |
AU (1) | AU2002247777A1 (es) |
DE (1) | DE60236355D1 (es) |
ES (2) | ES2184604B1 (es) |
WO (1) | WO2002080124A2 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105158548A (zh) * | 2015-08-24 | 2015-12-16 | 国家电网公司 | 一种新型高压验电器 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4223306A (en) * | 1978-07-24 | 1980-09-16 | Atlas Foundry & Machine Co. | Device for detection of short circuits in industrial uses |
GB2310728A (en) * | 1996-02-29 | 1997-09-03 | Lloyd Jones David | Voltage detection and alarm device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0827303B2 (ja) * | 1993-06-25 | 1996-03-21 | 日本電気株式会社 | 高電圧検出警報装置 |
JP2948106B2 (ja) * | 1994-08-31 | 1999-09-13 | 大成建設株式会社 | 高圧負荷開閉器投入警報装置 |
DE19816140A1 (de) * | 1998-04-09 | 1999-10-14 | Schnier Elektrostatik Gmbh | Verfahren und Schaltungsanordnung zur Sicherheitsüberprüfung einer Hochspannungsversorgungsanlage |
DE19915374A1 (de) * | 1999-04-06 | 2000-10-12 | Schnier Elektrostatik Gmbh | Verfahren und Schaltungsanordnung zur Sicherheitsüberprüfung einer elektrostatischen Sprühanlage |
-
2001
- 2001-03-30 ES ES200100754A patent/ES2184604B1/es not_active Expired - Fee Related
-
2002
- 2002-03-21 WO PCT/ES2002/000140 patent/WO2002080124A2/es not_active Application Discontinuation
- 2002-03-21 EP EP02716854A patent/EP1382972B1/en not_active Expired - Lifetime
- 2002-03-21 DE DE60236355T patent/DE60236355D1/de not_active Expired - Lifetime
- 2002-03-21 CN CN02801002.7A patent/CN1283999C/zh not_active Expired - Fee Related
- 2002-03-21 AU AU2002247777A patent/AU2002247777A1/en not_active Abandoned
- 2002-03-21 ES ES02716854T patent/ES2345764T3/es not_active Expired - Lifetime
- 2002-03-21 AT AT02716854T patent/ATE467843T1/de not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4223306A (en) * | 1978-07-24 | 1980-09-16 | Atlas Foundry & Machine Co. | Device for detection of short circuits in industrial uses |
GB2310728A (en) * | 1996-02-29 | 1997-09-03 | Lloyd Jones David | Voltage detection and alarm device |
Non-Patent Citations (4)
Title |
---|
DATABASE WPI Week 199512, Derwent Publications Ltd., London, GB; AN 1995-086119, XP002972933 & JP 7 012 856 A (NEC CORPORATION) 17 January 1995 * |
DATABASE WPI Week 199622, Derwent Publications Ltd., London, GB; AN 1996-215945, XP002972932 & JP 8 079 962 A (TAISEI CONSTR CO LTD, TOGAMI ELECTRIC MFG) 22 March 1996 * |
DATABASE WPI Week 199950, Derwent Publications Ltd., London, GB; AN 1999-582449, XP002972931 & EP 0 949 735 A (SCHNIER ELEKTROSTATIK GMBH) 13 October 1999 * |
DATABASE WPI Week 200062, Derwent Publications Ltd., London, GB; AN 2000-639600, XP002972930 & EP 1 046 918 A (SCHNIER ELEKTROSTATIK GMBH) 25 October 2000 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105158548A (zh) * | 2015-08-24 | 2015-12-16 | 国家电网公司 | 一种新型高压验电器 |
Also Published As
Publication number | Publication date |
---|---|
WO2002080124A3 (es) | 2002-12-05 |
ES2345764T3 (es) | 2010-10-01 |
EP1382972A2 (en) | 2004-01-21 |
CN1283999C (zh) | 2006-11-08 |
CN1527947A (zh) | 2004-09-08 |
ES2184604B1 (es) | 2004-05-01 |
EP1382972B1 (en) | 2010-05-12 |
ATE467843T1 (de) | 2010-05-15 |
DE60236355D1 (de) | 2010-06-24 |
AU2002247777A1 (en) | 2002-10-15 |
ES2184604A1 (es) | 2003-04-01 |
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