EP1117115A1 - Differentialschutzvorrichtung, insbesondere Differentialschutzschalter - Google Patents

Differentialschutzvorrichtung, insbesondere Differentialschutzschalter Download PDF

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Publication number
EP1117115A1
EP1117115A1 EP00410148A EP00410148A EP1117115A1 EP 1117115 A1 EP1117115 A1 EP 1117115A1 EP 00410148 A EP00410148 A EP 00410148A EP 00410148 A EP00410148 A EP 00410148A EP 1117115 A1 EP1117115 A1 EP 1117115A1
Authority
EP
European Patent Office
Prior art keywords
housing
base
aforementioned
card
differential
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
EP00410148A
Other languages
English (en)
French (fr)
Other versions
EP1117115B1 (de
Inventor
Juan Cantero
Franck Fontana
Patrick Guillon
Bernard Lebeau
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1117115A1 publication Critical patent/EP1117115A1/de
Application granted granted Critical
Publication of EP1117115B1 publication Critical patent/EP1117115B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection with differential 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H2071/0242—Assembling parts of a circuit breaker by using snap mounting techniques

Definitions

  • the present invention relates to a differential electrical protection device in particular a switch comprising, housed in an insulating housing comprising a base and a cover, a mechanism for opening and closing the contacts actuated by a lever, a differential release device capable of being actuated by a triggering and mechanically connected to said mechanism so as to cause the opening of the device contacts when an insulation fault occurs in the circuit to be protected, the aforementioned tripping device being mounted on a card information processing electronics, the mobile contact (s) of the device being retained in a closed position by a hooking system unlockable by actuation of the aforementioned triggering member, and being returned to a position opening after triggering by a spring housed in a housing belonging to the base, said spring being supported by its two opposite ends respectively on a wall of the base and on the shaft carrying the movable contact (s),
  • the present invention solves this problem and proposes a differential switch whose assembly is considerably simplified.
  • the present invention relates to an electrical protection device differential such as a switch, this device being characterized in that the base of the device has an opening allowing the introduction of the spring into the aforementioned housing after mounting, inside the base of the device housing, of the card fitted with the device differential trigger and on which card was previously fixed the mechanism.
  • the housing of the device comprising a front face having, on either side of a projecting part housing the aforementioned mechanism, two connection faces housing the connection terminals of the device, the device is characterized in that the aforesaid opening for the introduction of the spring is situated substantially at the intersection between one of the connection faces and the aforementioned projecting part.
  • the above-mentioned mechanism is supported by a flange comprising latching means cooperating with latching means complementary provided on the base to ensure at least partially the fixing of the mechanism on the base after mounting of said mechanism on the card.
  • the housing of the torus is arranged relative to the card, so that this housing cooperates with the walls of the base so as to ensure insulation from each other, primary braids directly connecting the movable contacts at the device output terminals.
  • the above-mentioned mechanism is fixed by plugging into the menu.
  • FIG. 1 shows an electronic differential switch D intended to be placed on an electrical network so as to protect it against insulation faults to earth.
  • this device is housed in a case of substantially parallelepiped shape having a base 1 and a cover (not visible in the drawings).
  • This switch comprises, as more particularly illustrated in FIG. 1, a differential tripping device 2 mounted on an electronic card 3, said card 3 comprising an electronic processing circuit with an auxiliary power source and a mechanism 4 for opening and closing of the contacts 5.6.
  • This assembly is mounted (fig.2) in a compartment 7 of the base 1 of the insulating housing of the switch intended to house input connection terminals 8 and output 9 to form a differential switch D.
  • the differential tripping device 2 comprises, in a manner known per se, a totalizing transformer 10 and an electromagnetic trip relay 11.
  • the totalizing transformer 10 constitutes a differential current detector and is provided of a toroid-shaped magnetic circuit 12, having a central orifice 13 capable of being crossed by the primary windings 14,15 formed by the power conductors of the low voltage network to be protected.
  • a secondary winding 16 is wound on the torus 12, and is electrically connected to a measurement resistor of the electronic circuit.
  • the electromagnetic trip relay 11 is formed by a current transmission coil actuator 17.
  • the tubular coil 17 is carried by a support, and comprises, in a known manner inside a bore, a mobile magnetic core (not visible in the figures) coupled to an actuating member.
  • the relay coil is connected to two terminals of the electronic circuit.
  • the base 1 of the housing has a housing 18 for receiving a spring 19 said tear-off spring capable of recalling the movable contacts 5,6 in the open position after the triggering of the device.
  • this spring 19 is supported by its two opposite ends 19a, 19b respectively on a wall of the base 1 of the housing, and on a shaft 20 said contact carrier supporting the movable contacts 5 , 6.
  • this housing 18 has an access orifice 21 located so as to allow the mounting of the spring 19 after the assembly of the assembly consisting of the card 3 equipped with the mechanism 4 and the trigger device 2 to 1 'interior of the base 1.
  • this orifice 21 is located at the intersection between on the one hand, the projecting part s (fig.4) housing the opening and closing mechanism 4 and on the other hand, one 22 of the connection faces 22, 23 of the device.
  • the device is assembled as follows. First of all, the primary conductors 14, 15 are introduced through the torus 12 (fig. 5).
  • These primaries 14,15 are connected, by one of their ends 14a, 15a, respectively to the output connection terminals 9 of the device, and by their opposite end 14b, 15b, respectively to the two movable contacts 5,6.
  • the mechanism 4 for opening and closing the contacts is then plugged or plugged into the card 3 (fig.1), then the assembly is inserted into the opening of the base 1.
  • the fixing of this assembly on the base 1 is produced on the one hand, by snap-fastening of the mechanism 4 on the base 1 thanks to the presence of a hook 25 provided on the flange 26 supporting the mechanism 4, said hook 25 being able to cooperate with a complementary snap-in element 27 provided on the base 1 and on the other hand, by means of a screw (not shown) passing through two orifices 30, 31 provided respectively in the flange 26 and in the base 1.
  • the tear-off spring 19 can then be introduced (position b) in the housing 18 of the base 1 through the opening 21 provided for this purpose in the base 1, as illustrated more particularly in Figure 4, to the position shown in (a).
  • the spring 19 is supported on the one hand, on a wall 1a belonging to the base 1 and on the other hand, on the contact-carrying shaft 20.
  • the housing 29 of the torus 12 is arranged relative to the card 3 so that this housing 29 cooperates with the walls 28 of the base 1 so as to provide insulation, relative to each other, primary braids 14,15 directly connecting the movable contacts 5,6 to the output pads 9 of the device. This ensures insulation of the active conductors 14, 15 from each other at a lower cost.
  • the invention is not necessary to mount the contact breakout spring before the mechanism from which it results in easier assembly of the switch because the base can receive an electronic card connected to the 'advance on the mechanism and which thus contains the whole of the differential function.
  • the invention is not limited to the embodiments described and illustrated which have been given only by way of example.
  • the invention applies to switches as well as circuit breakers.
  • the invention includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.
EP00410148A 2000-01-10 2000-12-07 Differentialschutzvorrichtung, insbesondere Differentialschutzschalter Expired - Lifetime EP1117115B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0000246A FR2803688B1 (fr) 2000-01-10 2000-01-10 Appareil de protection electrique differentiel, notamment un interrupteur differentiel
FR0000246 2000-01-10

Publications (2)

Publication Number Publication Date
EP1117115A1 true EP1117115A1 (de) 2001-07-18
EP1117115B1 EP1117115B1 (de) 2006-08-23

Family

ID=8845751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00410148A Expired - Lifetime EP1117115B1 (de) 2000-01-10 2000-12-07 Differentialschutzvorrichtung, insbesondere Differentialschutzschalter

Country Status (5)

Country Link
EP (1) EP1117115B1 (de)
CN (1) CN1180450C (de)
AT (1) ATE337612T1 (de)
FR (1) FR2803688B1 (de)
HK (1) HK1038637A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2061062A1 (de) 2007-11-16 2009-05-20 Schneider Electric Industries SAS Elektrisches Unterbrechungsgerät
WO2012176170A1 (en) 2011-06-23 2012-12-27 Debiotech S.A. Method and system for detecting malfunction of a mems micropump
WO2013034608A1 (fr) 2011-09-05 2013-03-14 Xylowatt S.A. Gazeifieur de combustible solide carbone
JP2015185215A (ja) * 2014-03-20 2015-10-22 三菱電機株式会社 漏電遮断器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022202311A1 (de) * 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Elektronisch schaltendes Reiheneinbaugerät und Isolierstoffgehäuse

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648736A (en) * 1949-10-08 1953-08-11 Fed Electric Prod Co Automatic circuit breaker
EP0508846A1 (de) * 1991-04-08 1992-10-14 Hager Electro S.A. Verbesserter enkelpoliger modularer Schalter und dessen Aufbau
FR2686453A1 (fr) * 1992-01-17 1993-07-23 Legrand Sa Interrupteur differentiel.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2648736A (en) * 1949-10-08 1953-08-11 Fed Electric Prod Co Automatic circuit breaker
EP0508846A1 (de) * 1991-04-08 1992-10-14 Hager Electro S.A. Verbesserter enkelpoliger modularer Schalter und dessen Aufbau
FR2686453A1 (fr) * 1992-01-17 1993-07-23 Legrand Sa Interrupteur differentiel.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2061062A1 (de) 2007-11-16 2009-05-20 Schneider Electric Industries SAS Elektrisches Unterbrechungsgerät
CN101436491A (zh) * 2007-11-16 2009-05-20 施耐德电器工业公司 电气开关装置单元
CN101436491B (zh) * 2007-11-16 2013-06-12 施耐德电器工业公司 电气开关装置单元
WO2012176170A1 (en) 2011-06-23 2012-12-27 Debiotech S.A. Method and system for detecting malfunction of a mems micropump
WO2013034608A1 (fr) 2011-09-05 2013-03-14 Xylowatt S.A. Gazeifieur de combustible solide carbone
JP2015185215A (ja) * 2014-03-20 2015-10-22 三菱電機株式会社 漏電遮断器

Also Published As

Publication number Publication date
ATE337612T1 (de) 2006-09-15
HK1038637A1 (en) 2002-03-22
CN1180450C (zh) 2004-12-15
EP1117115B1 (de) 2006-08-23
FR2803688B1 (fr) 2002-03-01
FR2803688A1 (fr) 2001-07-13
CN1304155A (zh) 2001-07-18

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