EP 0108963 B1 19860723 - POWER SUPPLY CIRCUIT FOR AN ELECTROSTATIC DUST SEPARATOR
Title (en)
POWER SUPPLY CIRCUIT FOR AN ELECTROSTATIC DUST SEPARATOR
Publication
Application
Priority
DE 3241060 A 19821106
Abstract (en)
[origin: ES8500766A1] The pulse voltage for the electrode (12) of a dust separator (10) is generated by a thyristor circuit (19) to be transferred to a dust separator through a transformer (16). It being possible that voltage arcings take place at the dust separator (10), there is the risk, in case of a blocked thyristor (20) that from the secondary of the transformer (16) a high voltage is produced at thyristor (20) to destroy the thyristor. To avoid such an occurrence, a detector (27) is provided which is only responsive to sudden voltage drops whereupon the thyristor (20) is enabled to become conductive so that the energy of the secondary circuit may be discharged to the storage capacitor (24) in the primary circuit.
IPC 1-7
IPC 8 full level
H02M 9/02 (2006.01); B03C 3/68 (2006.01); H02M 3/315 (2006.01)
CPC (source: EP US)
B03C 3/68 (2013.01 - EP US); Y10S 323/903 (2013.01 - EP US)
Citation (opposition)
Opponent : Siemens
- DE 2253601 A1 19740516 - FUCHS HEINRICH, et al
- DE 2608436 A1 19760916 - LINDBERG AS NEA
- US 4282014 A 19810804 - WINKLER HEINRICH, et al
- US 4325114 A 19820413 - KOBAYASHI SUMIO, et al
- DE 2000422 A1 19700723 - HITACHI LTD
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0108963 A1 19840523; EP 0108963 B1 19860723; AT E20833 T1 19860815; AU 2064083 A 19840510; AU 559636 B2 19870319; DE 3241060 A1 19840510; DE 3364745 D1 19860828; ES 526977 A0 19841116; ES 8500766 A1 19841116; GR 78707 B 19840927; IN 160445 B 19870711; JP S5999976 A 19840608; US 4854948 A 19890808; ZA 838180 B 19840627
DOCDB simple family (application)
EP 83110554 A 19831022; AT 83110554 T 19831022; AU 2064083 A 19831027; DE 3241060 A 19821106; DE 3364745 T 19831022; ES 526977 A 19831102; GR 830172738 A 19831018; IN 704DE1983 A 19831019; JP 20729183 A 19831104; US 14091387 A 19871230; ZA 838180 A 19831102