ITMI931625A1 - Apparecchiatura elettronica per verificare la presenza di tensione in conduttori di linee elettriche a media tensione e per compararne la - Google Patents
Apparecchiatura elettronica per verificare la presenza di tensione in conduttori di linee elettriche a media tensione e per compararne laInfo
- Publication number
- ITMI931625A1 ITMI931625A1 IT93MI001625A ITMI931625A ITMI931625A1 IT MI931625 A1 ITMI931625 A1 IT MI931625A1 IT 93MI001625 A IT93MI001625 A IT 93MI001625A IT MI931625 A ITMI931625 A IT MI931625A IT MI931625 A1 ITMI931625 A1 IT MI931625A1
- Authority
- IT
- Italy
- Prior art keywords
- voltage
- conductor
- conductors
- verify
- appear
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/22—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using light-emitting devices, e.g. LED, optocouplers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
L'apparecchiatura comprende dispositivi capacitivi accoppiati ai conduttori elettrici, che emettono correnti alternate a bassissimo amperaggio. Tali correnti vengono utilizzate da circuiti rivelatori di tensione e da circuiti rivelatori di fase associati ad ogni conduttore, i quali forniscono un impulso luminoso ad ogni n periodi e rispettivamente ad ogni periodo di dette correnti alternate. Le due serie di impulsi vengono poi trasferite mediante cavi a fibre ottiche in una posizione accessibile a distanza di sicurezza, dove la prima viene utilizzata direttamente, per verificare visivamente la presenza di tensione sul conduttore, e la seconda viene utilizzata indirettamente, tramite un dispositivo comparatore di fase, per verificarne lo sfasamento rispetto ad un'analoga serie di impulsi relativi ad un altro conduttore.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931625A IT1272484B (it) | 1993-07-22 | 1993-07-22 | Apparecchiatura elettronica per verificare la presenza di tensione in conduttori di linee elettriche a media tensione e per compararne la fase operando a distanza di sicurezza. |
EP94410052A EP0635725B1 (fr) | 1993-07-22 | 1994-07-20 | Dispositif électronique pour vérifier la présence de tension et comparer la phase dans des conducteurs de lignes électriques |
DE69430779T DE69430779T2 (de) | 1993-07-22 | 1994-07-20 | Elektronische Schaltung zur Kontrolle der Anwesenheit von Spannungen in elektrischen Leitungen und zum Vergleichen deren Phasenlage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI931625A IT1272484B (it) | 1993-07-22 | 1993-07-22 | Apparecchiatura elettronica per verificare la presenza di tensione in conduttori di linee elettriche a media tensione e per compararne la fase operando a distanza di sicurezza. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI931625A0 ITMI931625A0 (it) | 1993-07-22 |
ITMI931625A1 true ITMI931625A1 (it) | 1995-01-22 |
IT1272484B IT1272484B (it) | 1997-06-23 |
Family
ID=11366659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI931625A IT1272484B (it) | 1993-07-22 | 1993-07-22 | Apparecchiatura elettronica per verificare la presenza di tensione in conduttori di linee elettriche a media tensione e per compararne la fase operando a distanza di sicurezza. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0635725B1 (it) |
DE (1) | DE69430779T2 (it) |
IT (1) | IT1272484B (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3051256B1 (fr) * | 2016-05-11 | 2021-04-09 | Thomy Jessie | Dispositif de detection de concordance de phase d'une tension capacitive alternative polyphasee. |
FR3071927B1 (fr) * | 2017-09-29 | 2019-09-20 | Schneider Electric Industries Sas | Systeme indicateur de presence tension dans un reseau haute tension |
DE102023103069A1 (de) | 2023-02-08 | 2024-08-08 | Dipl. -Ing. H. Horstmann GmbH | Phasenvergleicherschaltung |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5897664A (ja) * | 1981-12-04 | 1983-06-10 | Mitsubishi Electric Corp | 電圧測定装置 |
DE3727950A1 (de) * | 1986-08-28 | 1988-03-10 | Jordan Gmbh Georg | Vorrichtung zur durchfuehrung von spannungspruefungen und -messungen an einer mittel- oder hochspannungsschaltanlage |
FR2627287B1 (fr) * | 1988-02-17 | 1990-07-20 | Catu Ets | Dispositif pour la reconnaissance du sens de rotation des phases d'un reseau electrique triphase |
FR2648235B1 (fr) * | 1989-06-09 | 1991-09-13 | Merlin Gerin | Dispositif de signalisation pour un poste de distribution electrique |
DE4032689A1 (de) * | 1990-10-15 | 1992-04-16 | Transform Roentgen Matern Veb | Ueberwachungsschaltung fuer eine spannung |
DE4109943A1 (de) * | 1991-03-26 | 1992-10-01 | Kries Werner | Schaltungsanordnung zur spannungsanzeige |
-
1993
- 1993-07-22 IT ITMI931625A patent/IT1272484B/it active IP Right Grant
-
1994
- 1994-07-20 EP EP94410052A patent/EP0635725B1/fr not_active Expired - Lifetime
- 1994-07-20 DE DE69430779T patent/DE69430779T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0635725B1 (fr) | 2002-06-12 |
DE69430779T2 (de) | 2002-12-05 |
DE69430779D1 (de) | 2002-07-18 |
EP0635725A2 (fr) | 1995-01-25 |
ITMI931625A0 (it) | 1993-07-22 |
EP0635725A3 (fr) | 1997-04-09 |
IT1272484B (it) | 1997-06-23 |
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0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971015 |