EP 1321951 A1 20030625 - Compact measurement apparatus for the protection of medium-voltage line
Title (en)
Compact measurement apparatus for the protection of medium-voltage line
Title (de)
Kompakte Messvorrichtung zum Schutz eines Mittelspannungsleiters
Title (fr)
Appareil de mesure compact pour la protection d'une ligne à moyenne tension
Publication
Application
Priority
IT MI20012788 A 20011221
Abstract (en)
A compact apparatus (16) for detecting current, which travels in medium-voltage insulated cables (23), comprising a single epoxy resin block (20) comprising a series of toroidal windings (40, 44, 47) combined with a further winding (39) for collection of the phases; the apparatus (16) takes samples of current from the medium-voltage cables (23) connected to a bar switch and disconnecting switch (22), guaranteeing maximum reliability in the picking up and sending of signals to protection relays (26) for short-circuits, overloads and unbalancing between the phases, as well as the reading and detection of the phase and grounding currents, in order to measure all of the functionalities and malfunctions of the electrical line. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 38/30 (2006.01); H01F 38/38 (2006.01); H01H 33/02 (2006.01)
CPC (source: EP)
H01F 38/30 (2013.01); H01F 38/38 (2013.01); H01H 33/027 (2013.01)
Citation (search report)
- [Y] US 3024434 A 19620306 - CARSON JR ANDREW B
- [Y] DE 19828890 A1 20000203 - AEG KONDENSATOREN UND WANDLER [DE]
- [A] US 3512045 A 19700512 - TIPTON WILLIAM C, et al
- [A] DE 19830017 A1 19991230 - SIEMENS AG [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 02080450 A 20021217; IT MI20012788 A 20011221