EP 0001387 A1 19790418 - Tap changer with a screening electrode.
Title (en)
Tap changer with a screening electrode.
Title (de)
Stufenschalter mit Abschirmelektrode.
Title (fr)
Commutateur à prises avec une électrode de blindage.
Publication
Application
Priority
DE 2738481 A 19770826
Abstract (en)
1. Tap-changing switch with a load diverter switch (2) sitting in a cylindrical housing and with a tap selector (4), which is arranged there-under and which is actuable by an intermittent gear (3) arranged between load diverter switch housing and tap selector, and with at least one annular screening (5) arranged externally on the load diverter switch housing for evening out the electric field emanating from the potential-carrying parts of the load diverter switch, characterised thereby, that the annular screening is laid as helix (7) around the load diverter switch housing (2) as well as around the intermittent gear (3), wherein at least one end (11, 13) of the helix is connected to the potential of the star point (12) in the case of three-phase tap-changing switches or to the grounding (12) in the case of single-phase tap-changing switches.
IPC 1-7
IPC 8 full level
H01F 29/04 (2006.01); H01F 27/36 (2006.01); H01F 29/02 (2006.01); H01H 9/00 (2006.01)
CPC (source: EP US)
H01F 27/36 (2013.01 - EP); H01F 27/363 (2020.08 - EP US); H01F 29/025 (2013.01 - EP); H01H 9/0005 (2013.01 - EP)
Citation (search report)
- [A] DE 1185715 B 19650121 - REINHAUSEN GEBR SCHEUBECK K G
- [A] DE 333785 C 19210305 - SIEMENS AG
- [A] DE 7420948 U
Designated contracting state (EPC)
FR GB NL SE
DOCDB simple family (publication)
EP 0001387 A1 19790418; EP 0001387 B1 19800723; DE 2738481 A1 19790301; DE 2738481 B2 19800124; DE 2738481 C3 19800918; JP S5463225 A 19790522
DOCDB simple family (application)
EP 78100612 A 19780807; DE 2738481 A 19770826; JP 10240878 A 19780824