WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2010149217) METHOD FOR PROTECTING TRANSFORMERS, AND A TRANSFORMER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/149217    International Application No.:    PCT/EP2009/058029
Publication Date: 29.12.2010 International Filing Date: 26.06.2009
IPC:
H02H 7/04 (2006.01), H02H 9/08 (2006.01)
Applicants: ABB TECHNOLOGY AG [CH/CH]; Affolternstrasse 44 CH-8050 Zürich (CH) (For All Designated States Except US).
NUNES, Jose [SE/SE]; (SE) (For US Only).
NYBERG, Sören [SE/SE]; (SE) (For US Only)
Inventors: NUNES, Jose; (SE).
NYBERG, Sören; (SE)
Agent: KOCK, Ina; ABB AB Intellectual Property Ingenjör Bååths Gata 11 S-721 83 Västerås (SE)
Priority Data:
Title (EN) METHOD FOR PROTECTING TRANSFORMERS, AND A TRANSFORMER
(FR) PROCÉDÉ DE PROTECTION DE TRANSFORMATEURS, ET TRANSFORMATEUR
Abstract: front page image
(EN)The invention relates to a method (20) for protecting a transformer (1), wherein the transformer (1) comprises a primary side (2) and an ungrounded secondary side (3), the secondary side (3) comprising a neutral (4). The method comprises the steps of: establishing (21) a single-phase-to-ground fault on the secondary side (3), and operating (22) a switching device (5) for connecting the neutral (4) to ground (6).
(FR)La présente invention concerne un procédé (20) permettant de protéger un transformateur (1), le transformateur (1) comprenant un côté principal (2) et un côté auxiliaire non mis à la masse (3), le côté auxiliaire non mis à la masse (3) comprenant un conducteur neutre (4). Le procédé comprend les étapes consistant à établir (21) un défaut monophase-vers-masse sur le côté auxiliaire (3) et à faire fonctionner (22) un dispositif de commutation (5) pour connecter le conducteur neutre (4) à la masse (6).
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)