EP1189249A3 - Explosion-proof voltage transformer - Google Patents

Explosion-proof voltage transformer Download PDF

Info

Publication number
EP1189249A3
EP1189249A3 EP01121495A EP01121495A EP1189249A3 EP 1189249 A3 EP1189249 A3 EP 1189249A3 EP 01121495 A EP01121495 A EP 01121495A EP 01121495 A EP01121495 A EP 01121495A EP 1189249 A3 EP1189249 A3 EP 1189249A3
Authority
EP
European Patent Office
Prior art keywords
sleeve
explosion
voltage transformer
proof voltage
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01121495A
Other languages
German (de)
French (fr)
Other versions
EP1189249A2 (en
EP1189249B1 (en
Inventor
Olaf Brockmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kgritz Messwandler & Co GmbH
Original Assignee
Ritz Messwandler GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE20016065U external-priority patent/DE20016065U1/en
Application filed by Ritz Messwandler GmbH and Co KG filed Critical Ritz Messwandler GmbH and Co KG
Publication of EP1189249A2 publication Critical patent/EP1189249A2/en
Publication of EP1189249A3 publication Critical patent/EP1189249A3/en
Application granted granted Critical
Publication of EP1189249B1 publication Critical patent/EP1189249B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/24—Voltage transformers
    • H01F38/26—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Casings For Electric Apparatus (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Measuring Fluid Pressure (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Dc-Dc Converters (AREA)

Abstract

A potential transformer has a surrounding sleeve (3) as a protective device with an over-pressure safety device mounted on the top side of the sleeve. The over-pressure safety device is designed as a cover plate (7) that is pressed with pressure springs onto the sleeve. Bolts with a head and at least one thread on the end side are provided. Each bolt is guided through the center of a pressure spring, an opening in the cover plate and cover-like opening in the top edge of the sleeve.
EP01121495A 2000-09-16 2001-09-08 Explosion-proof voltage transformer Expired - Lifetime EP1189249B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20016065U 2000-09-16
DE20016065U DE20016065U1 (en) 2000-09-16 2000-09-16 Explosion-proof path converter
DE20107017U DE20107017U1 (en) 2000-09-16 2001-04-24 Voltage converter
DE20107017U 2001-04-24

Publications (3)

Publication Number Publication Date
EP1189249A2 EP1189249A2 (en) 2002-03-20
EP1189249A3 true EP1189249A3 (en) 2002-11-27
EP1189249B1 EP1189249B1 (en) 2005-11-16

Family

ID=26056526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01121495A Expired - Lifetime EP1189249B1 (en) 2000-09-16 2001-09-08 Explosion-proof voltage transformer

Country Status (4)

Country Link
EP (1) EP1189249B1 (en)
AT (1) ATE310312T1 (en)
DE (1) DE50108068D1 (en)
ES (1) ES2253312T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE395709T1 (en) * 2004-10-15 2008-05-15 Kg Ritz Messwandler Gmbh & Co VOLTAGE CONVERTER FOR RAILWAY CARS
CN101350247B (en) * 2007-07-18 2010-09-08 大连北方互感器有限公司 Outdoor dry-type voltage transformer for electric locomotive
DE202014100486U1 (en) * 2014-02-04 2015-05-05 Sma Solar Technology Ag DEFORMABLE FASTENING ELEMENT AND INVERTER
DE102017203799A1 (en) 2017-03-08 2018-09-13 RITZ Instrument Transformers GmbH Burst-proof current transformer, especially for railcars

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904616A (en) * 1958-03-18 1959-09-15 Mc Graw Edison Co Encased electrical apparatus having pressure relief means
DE2624882A1 (en) * 1976-06-03 1977-12-15 Transformatoren Union Ag Overpressure protection for insulant filled machines - has cover liftable by excessive pressure after which cover is replaced and sealed
DE2749659A1 (en) * 1977-11-05 1979-05-10 Balteau Sa Instrument transformer for matching to measuring appts. - has inner space of hollow porcelain body divided by insulating pressure resistant tube into two chambers
JPS622505A (en) * 1985-06-27 1987-01-08 Toshiba Corp Transformer
FR2713837A1 (en) * 1993-12-08 1995-06-16 Merlin Gerin Protection device for electrical equipment such as power transformer
JPH11251155A (en) * 1998-02-27 1999-09-17 Mitsubishi Electric Corp Transformer for instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904616A (en) * 1958-03-18 1959-09-15 Mc Graw Edison Co Encased electrical apparatus having pressure relief means
DE2624882A1 (en) * 1976-06-03 1977-12-15 Transformatoren Union Ag Overpressure protection for insulant filled machines - has cover liftable by excessive pressure after which cover is replaced and sealed
DE2749659A1 (en) * 1977-11-05 1979-05-10 Balteau Sa Instrument transformer for matching to measuring appts. - has inner space of hollow porcelain body divided by insulating pressure resistant tube into two chambers
JPS622505A (en) * 1985-06-27 1987-01-08 Toshiba Corp Transformer
FR2713837A1 (en) * 1993-12-08 1995-06-16 Merlin Gerin Protection device for electrical equipment such as power transformer
JPH11251155A (en) * 1998-02-27 1999-09-17 Mitsubishi Electric Corp Transformer for instrument

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 169 (E - 511) 30 May 1987 (1987-05-30) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 14 22 December 1999 (1999-12-22) *

Also Published As

Publication number Publication date
DE50108068D1 (en) 2005-12-22
ES2253312T3 (en) 2006-06-01
ATE310312T1 (en) 2005-12-15
EP1189249A2 (en) 2002-03-20
EP1189249B1 (en) 2005-11-16

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