NO961362L - Disconnect current limiter for protection of three phase electric transformers - Google Patents

Disconnect current limiter for protection of three phase electric transformers

Info

Publication number
NO961362L
NO961362L NO961362A NO961362A NO961362L NO 961362 L NO961362 L NO 961362L NO 961362 A NO961362 A NO 961362A NO 961362 A NO961362 A NO 961362A NO 961362 L NO961362 L NO 961362L
Authority
NO
Norway
Prior art keywords
phase
protection
current limiter
phase electric
electric transformers
Prior art date
Application number
NO961362A
Other languages
Norwegian (no)
Other versions
NO961362D0 (en
Inventor
Thierry Rambaud
Original Assignee
Ferraz Sa
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 FR9504213A external-priority patent/FR2732816B1/en
Priority claimed from FR9509626A external-priority patent/FR2737614B1/en
Application filed by Ferraz Sa filed Critical Ferraz Sa
Publication of NO961362D0 publication Critical patent/NO961362D0/en
Publication of NO961362L publication Critical patent/NO961362L/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H79/00—Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/0241—Structural association of a fuse and another component or apparatus
    • H01H2085/0291—Structural association with a current transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/122—Automatic release mechanisms with or without manual release actuated by blowing of a fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/303—Movable indicating elements
    • H01H85/306—Movable indicating elements acting on an auxiliary switch or contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The protection device is for a three-phase transformer, each transformer phase having a limiter or fuse (6) covered by an outer cover and connected across the phase input and output wires (8,9). Each output wire has a protruding tab connection (21). Each limiter has a mechanism moving an external arm (14). The arm trips a contact section (16) with an inner spring, which comes down to short out the other two phase connections.
NO961362A 1995-04-04 1996-04-02 Disconnect current limiter for protection of three phase electric transformers NO961362L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9504213A FR2732816B1 (en) 1995-04-04 1995-04-04 PROTECTION DECONNECTOR FOR THREE-PHASE ELECTRIC TRANSFORMERS
FR9509626A FR2737614B1 (en) 1995-08-02 1995-08-02 PROTECTION DECONNECTOR FOR THREE-PHASE ELECTRIC TRANSFORMERS

Publications (2)

Publication Number Publication Date
NO961362D0 NO961362D0 (en) 1996-04-02
NO961362L true NO961362L (en) 1996-10-07

Family

ID=26231874

Family Applications (1)

Application Number Title Priority Date Filing Date
NO961362A NO961362L (en) 1995-04-04 1996-04-02 Disconnect current limiter for protection of three phase electric transformers

Country Status (6)

Country Link
EP (1) EP0736945B1 (en)
AT (1) ATE250814T1 (en)
DE (1) DE69630069T2 (en)
ES (1) ES2206550T3 (en)
NO (1) NO961362L (en)
PT (1) PT736945E (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2886480B1 (en) 2005-05-31 2007-06-29 Areva T & D Sa FUSE DETECTION DEVICE WITH ARC CONTROL FOR SELF-PROTECTED TRANSFORMER
PL2521156T3 (en) 2011-05-06 2015-06-30 Abb Technology Ag Disconnector for distribution transformers with dielectric liquid
FR2999792B1 (en) * 2012-12-19 2017-06-09 Transfix DEVICE FOR PROTECTING AN ELECTRONIC APPARATUS SUPPLIED BY A POLYPHASE NETWORK
GB201609661D0 (en) * 2016-06-01 2016-07-20 Secr Defence A stored voltage discharging device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE288372C (en) *
US2945108A (en) * 1958-12-08 1960-07-12 Carroll H Walsh Polyphase fuse construction
US3319026A (en) * 1965-09-24 1967-05-09 August R Schrade Multiple pole fused disconnect switch
US4002949A (en) * 1975-11-13 1977-01-11 Kearney-National, Inc. Transformer protective system
DE3426404A1 (en) * 1984-07-18 1986-01-23 Felten & Guilleaume Energietechnik GmbH, 5000 Köln High-voltage, high-power fuse
JPH02273433A (en) * 1989-04-14 1990-11-07 Matsushita Electric Works Ltd Load protection device

Also Published As

Publication number Publication date
PT736945E (en) 2004-02-27
EP0736945B1 (en) 2003-09-24
EP0736945A1 (en) 1996-10-09
ES2206550T3 (en) 2004-05-16
ATE250814T1 (en) 2003-10-15
DE69630069D1 (en) 2003-10-30
DE69630069T2 (en) 2004-07-08
NO961362D0 (en) 1996-04-02

Similar Documents

Publication Publication Date Title
NO961362L (en) Disconnect current limiter for protection of three phase electric transformers
ATE44192T1 (en) FISH PROTECTION SWITCH|T DESIGNED AS A PLUG.
AU4761497A (en) Fault-current protector means
EP0238963A3 (en) Circuit breaker
ATE161121T1 (en) MULTIPHASE SWITCHING SYSTEM AND GENERATOR ARRANGEMENT WITH SUCH A SWITCHING SYSTEM
DE59103823D1 (en) Transducers, for example total current transformers.
JPS536852A (en) Converting means
SU1689144A1 (en) Device for temperature control and protection of contact system wires from overheating
SU792423A2 (en) Device for overload protection of electric mains
ATE181185T1 (en) RESIDUAL CURRENT PROTECTION BREAKER
SU1457049A1 (en) Device for current protection of transformer/autotransformer against external shorting
SU922941A1 (en) Device for protecting three-phase electric equipment from breaking one of phase wires
RU2005024C1 (en) Device for electric arc welding
SU668038A1 (en) Device for overload and short-circuiting protection of electric installation
GR70036B (en)
SU1458259A1 (en) Device for shunting air gap of contact system
SU1504028A1 (en) Device for protecting welder against electric shock
KR790002051Y1 (en) Stator winding circuit of condenser induction motor
DE59308048D1 (en) Electric capacitor with fuse
RU97119679A (en) ELECTRICAL INSTALLATION PROTECTION DEVICE
JPH064575Y2 (en) Power supply current detection circuit
SU1397994A1 (en) Fuse with monitor
RU1836766C (en) Electric power supply system
SU815827A1 (en) Device for protective disconnection of electric equipment in electric network withinsulated neutral wire
SU1163406A1 (en) Device for protective disconnection of using equipment

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application