EP0139886A2 - Interrupteur de protection - Google Patents

Interrupteur de protection Download PDF

Info

Publication number
EP0139886A2
EP0139886A2 EP84108801A EP84108801A EP0139886A2 EP 0139886 A2 EP0139886 A2 EP 0139886A2 EP 84108801 A EP84108801 A EP 84108801A EP 84108801 A EP84108801 A EP 84108801A EP 0139886 A2 EP0139886 A2 EP 0139886A2
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
circuit
breaker according
release
switch
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
EP84108801A
Other languages
German (de)
English (en)
Other versions
EP0139886A3 (en
EP0139886B1 (fr
Inventor
Klaus Dipl.-Ing. Becker
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.)
Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Original Assignee
Lindner Fabrik Elektrischer Lampen und Apparate GmbH
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 Lindner Fabrik Elektrischer Lampen und Apparate GmbH filed Critical Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Priority to AT84108801T priority Critical patent/ATE40613T1/de
Publication of EP0139886A2 publication Critical patent/EP0139886A2/fr
Publication of EP0139886A3 publication Critical patent/EP0139886A3/de
Application granted granted Critical
Publication of EP0139886B1 publication Critical patent/EP0139886B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor

Definitions

  • the invention relates to a circuit breaker with the features of the preamble of claim 1.
  • circuit breakers circuit breakers, residual current circuit breakers, residual voltage circuit breakers, overvoltage protection switches
  • circuit breakers circuit breakers, residual current circuit breakers, residual voltage circuit breakers, overvoltage protection switches
  • a toggle is provided for switching on and off by hand, and for triggering in the event of a malfunction essentially a magnetic release with an impact anchor and / or a bimetal release. Due to the toggle position, the user of the circuit breaker can recognize whether it is switched on or off. Versions are also known in which the user can recognize whether the device has been switched off arbitrarily or whether it has switched off automatically (because of a fault). However, it is not clear what was the reason for the automatic triggering, namely an overload accident or a short circuit.
  • the invention has for its object to equip a circuit breaker in such a way that the user can reliably and easily recognize not only the malfunction but also its cause - short circuit or overcurrent.
  • the possibility of reliable detection should also exist in dark rooms, such as, for example, cellar rooms, since a majority of the circuit breakers in question are used in poorly lit rooms and it is not uncommon for the associated room lighting to fail after a (line) circuit breaker has responded .
  • This object is achieved by the characterizing features of claim 1.
  • the electro-optical display device interacts selectively in whole or in part with only one or (alternatively!) With the other.
  • the electro-optical element should respond when the magnetic release has caused the circuit breaker to switch off, since then there are dangers to the device and the user, which were described at the beginning.
  • a monostable electrical on / off switch is to be used which can be connected to the impact anchor of the magnetic release or the bimetallic strip of the bimetallic release, which can be reset to the switch-off position by hand using the manually operated knob.
  • a device has the effect that when one or (alternatively!) The other part responds, the electro-optical display device is switched on until the switch is switched on (reset) by actuating the toggle. If the electro-optical display device interacts with the magnetic release, the operator knows that the short circuit must first be eliminated before resetting. If, on the other hand, the electro-optical display device is connected to the bimetallic element, the operator knows when the display device is on that it can be safely switched on again.
  • the devices described not only pass on information to the user, but if the
  • Circuit breaker secures itself against being switched on again when the dangerous short-circuit situation arises. It is within the scope of the invention to provide a further manually operable button which must be pressed in order to reset the toggle in the event of a short circuit.
  • the circuit breaker 1 is provided with a switching device 2, which can be switched on and off manually by means of a toggle 3 and can be switched off electromagnetically and / or electrothermally by means of a magnetic release 4 or a bimetallic release 5.
  • the magnetic release 4 has an impact armature 6, the bimetallic release 5 has a bimetallic strip 7.
  • Impact anchor 6 and bimetallic strip 7 interact with the toggle 3 as well as with a main switch contact 9 through a coupling device 8, which is not shown in any more detail.
  • the coupling device 8 is designed such that the main switching contact 9 already opens only a trigger in response and do Störfallabschal- g effected.
  • a display current branch 12 which is parallel to the main switch contact 9 and contains a resistor 10 and a glow lamp 11, is provided, which is energized when the main switch contact 9 is opened and another switch contact 13 operatively connected to the impact armature 6 is closed, and the lighting the glow lamp 11 caused.
  • the glow lamp 11 in turn is arranged behind a window-like opening 14 in the circuit breaker housing wall 15 and is thus visible to the outside from the user.
  • the toggle and glow lamp should be arranged on the same side of the housing facing the user.
  • the impact of the impact armature 6 on the further switching contact 13 also takes place via a further coupling device 16, which is not shown in greater detail.
  • 17 denotes the “hot” side of the phase conductor
  • 18 denotes the “cold” side of the phase conductor that can be separated by the main switching contact 9 the neutral conductor.
  • the further switch contact 13 is dispensed with, which in the case of the one shown in FIG. 1 provides for the selective display of the glow lamp 11 only when the magnetic release 4 responds. Rather, via a coupling device 16 there is a diaphragm that can be displaced in the direction of arrow 21 between opening 14 and glow lamp 11
  • the glow lamp 11 is energized in the manner described above and is visible in yellow, since the part 23 lies between the opening 14 and the glow lamp 11. If, on the other hand, the magnetic release 4 has responded, the diaphragm is displaced such that the part 24 comes to lie between the glow lamp 11 and the opening 14 and the red glow of the glow lamp indicates the dangerous short-circuit condition.
  • a further 'glow lamp 30 is provided which can be connected in parallel to the glow lamp 11 via a third switching contact 31.
  • the third switching contact 31 is closed when the magnetic release 4 responds by the coupling device 16 interacting with the impact armature 6, so that when the switching device 2 responds only the glow lamp 11, when the magnetic release responds both glow lamps 11 and 30 light up.
  • the glow lamp 11 is supplied with voltage by a blinking circuit 40.
  • the flashing circuit 40 has a charging circuit 41, which consists of a charging resistor 42, a charging diode 43 and a charging capacitor 44 connected in series.
  • the charging circuit is parallel to the main switch contact 9.
  • a discharge circuit 45 consisting of a discharge resistor 46 and the glow lamp 11 in series, is parallel to the charging capacitor 44.
  • the charging capacitor 44 charged via the charging resistor 42 and the charging diode 43 is discharged intermittently, causing the glow lamp 11 to open after opening of the main switch contact 9 flashes.
  • the discharge circuit 45 Via a fourth switch contact 47 which is wirkver- b reasons by the coupling device 16 with the striker armature 6, the discharge circuit 45 is connected to the neutral conductor 19, falls so that the glow lamp in a steady lighting state.
  • the discharge circuit 45 is connected to the neutral conductor 19 via a decoupling diode 48 and a decoupling resistor 49. It appears significant that if the connections 50, 51, 52 are swapped, different switching states of the load switch can be assigned different lighting states of the diode.

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Thermally Actuated Switches (AREA)
EP84108801A 1983-09-30 1984-07-25 Interrupteur de protection Expired EP0139886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108801T ATE40613T1 (de) 1983-09-30 1984-07-25 Schutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3335494 1983-09-30
DE3335494A DE3335494C2 (de) 1983-09-30 1983-09-30 Schutzschalter

Publications (3)

Publication Number Publication Date
EP0139886A2 true EP0139886A2 (fr) 1985-05-08
EP0139886A3 EP0139886A3 (en) 1986-06-11
EP0139886B1 EP0139886B1 (fr) 1989-02-01

Family

ID=6210555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108801A Expired EP0139886B1 (fr) 1983-09-30 1984-07-25 Interrupteur de protection

Country Status (3)

Country Link
EP (1) EP0139886B1 (fr)
AT (1) ATE40613T1 (fr)
DE (2) DE3335494C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322774A (en) * 1997-02-28 1998-09-02 Fujitsu Ltd Error indicator for data modem
CN100395856C (zh) * 2006-01-27 2008-06-18 上海电器科学研究所（集团）有限公司 热磁式脱扣器及其脱扣原因指示装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802647C2 (de) * 1988-01-29 1998-02-05 Lectra Trading Ag Anzeigevorrichtung für den Schaltzustand eines Überlastschalters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544749A (en) * 1968-03-25 1970-12-01 Westinghouse Electric Corp Circuit interrupter with illuminated handle
US3614697A (en) * 1970-07-20 1971-10-19 Square D Co Molded case electric circuit breaker with fuse and indicator lamp
DE2744676A1 (de) * 1976-10-05 1978-04-06 Guim R Schutzschalter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE735977C (de) * 1940-11-05 1943-06-03 Voigt & Haeffner Ag Elektrischer Selbstschalter
DE1043478B (de) * 1956-06-26 1958-11-13 Voigt & Haeffner Ag Selbstschalter, insbesondere Installationsselbstschalter
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
US3443258A (en) * 1966-11-10 1969-05-06 Square D Co Circuit breaker with trip indicator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3544749A (en) * 1968-03-25 1970-12-01 Westinghouse Electric Corp Circuit interrupter with illuminated handle
US3614697A (en) * 1970-07-20 1971-10-19 Square D Co Molded case electric circuit breaker with fuse and indicator lamp
DE2744676A1 (de) * 1976-10-05 1978-04-06 Guim R Schutzschalter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2322774A (en) * 1997-02-28 1998-09-02 Fujitsu Ltd Error indicator for data modem
US6061391A (en) * 1997-02-28 2000-05-09 Fujitsu Limited Error indicator, and data modulator-demodulator and indicating method of light emitter therein
GB2322774B (en) * 1997-02-28 2002-05-01 Fujitsu Ltd Data modulator-demodulator and indicating method of light e mitter therein
CN100395856C (zh) * 2006-01-27 2008-06-18 上海电器科学研究所（集团）有限公司 热磁式脱扣器及其脱扣原因指示装置

Also Published As

Publication number Publication date
EP0139886A3 (en) 1986-06-11
DE3335494A1 (de) 1985-05-02
EP0139886B1 (fr) 1989-02-01
DE3335494C2 (de) 1985-10-10
ATE40613T1 (de) 1989-02-15
DE3476605D1 (en) 1989-03-09

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