EP0802551A2 - Dispositif de verrouillage pour cartouches à fusibles dans un sectionneur - Google Patents

Dispositif de verrouillage pour cartouches à fusibles dans un sectionneur Download PDF

Info

Publication number
EP0802551A2
EP0802551A2 EP97102389A EP97102389A EP0802551A2 EP 0802551 A2 EP0802551 A2 EP 0802551A2 EP 97102389 A EP97102389 A EP 97102389A EP 97102389 A EP97102389 A EP 97102389A EP 0802551 A2 EP0802551 A2 EP 0802551A2
Authority
EP
European Patent Office
Prior art keywords
slide
cover
fuse
longitudinal direction
bolt
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
EP97102389A
Other languages
German (de)
English (en)
Other versions
EP0802551A3 (fr
EP0802551B1 (fr
Inventor
Francis Kilian
Christian Kölbel
Michael Lischka
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.)
EFEN GmbH
Original Assignee
EFEN Elektrotechnische Fabrik 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 EFEN Elektrotechnische Fabrik GmbH filed Critical EFEN Elektrotechnische Fabrik GmbH
Publication of EP0802551A2 publication Critical patent/EP0802551A2/fr
Publication of EP0802551A3 publication Critical patent/EP0802551A3/fr
Application granted granted Critical
Publication of EP0802551B1 publication Critical patent/EP0802551B1/fr
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
    • 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
    • H01H85/0208—Tools for inserting and removing fuses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch

Definitions

  • the invention relates to a device for releasably locking fuse links in a NH fuse switch disconnector with switch frame and movable cover with respect to this, in which the fuse links are arranged next to one another transversely to their longitudinal direction, separated from one another by at least one phase partition and held by hanging parts by means of handle straps and at which can be brought into locking engagement with the respective grip tab in each case by a spring-loaded bolt.
  • a latch made of plastic is resiliently arranged in the longitudinal direction of the fuse link outside the first handle tab so that the handle tab presses the bar in the longitudinal direction of the securing agent salt by manual force when it is inserted, so that the user then pushes the rear handle tab into the Press down and insert suspension parts.
  • the spring behind the bolt pushes the fuse link back so far over the handle tab that the rear handle tab also engages in the recesses there and the fuse link is firmly locked.
  • This known solution is a positive and non-positive locking, which can be released again by applying such a force by hand that the front tab can push the bolt back.
  • the object of the invention is therefore to provide a device of the type mentioned in the introduction, in which the removal of the fuse links can be simplified and carried out at any time without touching personnel.
  • this object is achieved in that at least two bolts are attached to a common slide, which is arranged transversely to the longitudinal direction of the fuse links arranged in the disconnector against the biasing force of a spring is displaceable and thereby brings the latches from the grip tabs out of locking engagement and which extends through a side wall of the cover to form a button.
  • the removal of the fuse links before or after operation, ie after the energy has been switched off, is considerably simplified in the case of a device with the measures mentioned above.
  • the operator only needs to press the button protruding from one side wall and can thus simultaneously unlock at least two securing inserts in such a way that both inserts fall out almost simultaneously when the cover tilts over or is held at an angle.
  • the button is no less than a hand's width from the opposite side wall, as is the case with smaller disconnectors, for example size 00, then the user can unlock with one hand.
  • the thumb grips one side wall and one of the fingers touches the key that protrudes opposite.
  • the button is pressed in the above-mentioned transverse direction, ie transverse to the longitudinal direction of the fuse links. Their longitudinal direction is assumed in the direction of the two opposite contact blades or the connecting line between them.
  • the slider thus extends at least over one, preferably over two or three fuse inserts arranged next to one another in this transverse direction, because the fuse inserts sit transversely next to one another such that their longitudinal directions are each parallel.
  • the cover is pivotable relative to the switch frame.
  • the possibility of making the cover removable from the switch frame is also particularly advantageous. Obviously, the fuse inserts can be unlocked and removed easily and without any problems and risk of injury.
  • the button extending through the side wall of the cover in the said transverse direction protrudes half a finger width laterally out of the side wall. This makes the button easily accessible for every user. But it can also be useful to place a small trough in the side wall at the point of passage of the button, so that the button is accessible and operated by the user in the same way, but the outer contour of the entire lid is not exceeded becomes. As a result, the switch disconnectors can be arranged close together in compact assemblies, so that they take up little space.
  • the bolt is designed as a hook connected to the slide via a web, which engages around the grip tab.
  • This structure advantageously enables the arrangement of the plate-shaped or essentially flat grip tab between the slide on the one hand and the hook or bolt on the other.
  • the latching or locking surface of the hook encompasses the grip tab in this way. This creates good opportunities to make optimal use of the space available in the disconnector. For example, one can avoid the unwanted pushing up of the grip tab in the longitudinal direction of the fuse link by the hook which grips the grip tab from above, while at the bottom, i.e. with respect to the handle tab on the side opposite the hook of the slide is arranged. This requires a minimum space for its extension in the transverse direction mentioned, also in the height that can be seen in the longitudinal direction of the fuse links.
  • the front wall of the cover is closed by a window or even by a sliding window in which test holes for the voltage test are arranged. By sliding this window, the hole in question can either be covered or exposed. A voltage measuring tool is inserted through this hole up to the grip tab or contact knife. A minimum space is required for this correct application of the tool on the securing part.
  • switch disconnectors in which this space is limited in relation to the position of the handle tab. For such an embodiment, the design of the bolt as a hook is very cheap because the relatively large slide is then to be arranged on the lower side of the handle tab and the hook with its locking or blocking surface on the top of the handle tab.
  • the slide has an elongated box profile and receives a compression spring at the end opposite the button.
  • the slide can be molded from solid, electrically insulating and durable plastic, for example, or injection molded.
  • a favorable design for an elongated slide which preferably extends over two or three securing inserts arranged next to one another in the transverse direction mentioned is the box profile mentioned. Its cross-section is U-shaped, with the central web connecting the two free legs of the U being arranged forward toward the front wall of the cover. The hollow box of this slide profile is then behind this web.
  • the compression spring mentioned can be received and locked in the cavity of this slide. It is supported against that side wall of the lid or an interposed web in the lid, which is opposite the side wall with the recessed grip through which the button protrudes.
  • the slide can also be slidably arranged between a guide bracket attached to the cover and a preferably removable cover front wall.
  • This configuration significantly improves the installation of the slide with or without its hook. Even if the slider is elongated and extends over all three fuse links arranged next to one another, it can be moved from, i.e. can be easily inserted from the front of the lid without unscrewing other parts on the lid beforehand.
  • a part of the front wall of the lid is designed as a window or even as a sliding window. You can snap this out with the correct construction for the assembly of the slide, then insert the slide in the form of the elongated box profile with pre-tensioning against the compression spring and then snap the window back in.
  • the guide angle mentioned which is to be thought of as L-shaped in cross section in one embodiment, can have legs so long that the leg heights correspond to the cross-sectional dimensions of the slide.
  • the grip tab can then close the L-shaped guide bracket upwards like the second free leg of a U.
  • the slidably reciprocating slide is then enclosed between the handle tab and the guide bracket as in a cage.
  • either the front wall of the lid or its sliding window can close off the guide bracket to form a closed box housing. Tilting and jamming of the slider before and while the button is pressed is then excluded.
  • the hole can be covered by the slide. After pushing up this window, the hole then moves vertically away from the covering walls (e.g. the slide) in the longitudinal direction of the fuse link and frees up the space behind for the grip tab for voltage measurement.
  • the slide and the latches can be moved in one plane in front of the suspension parts leaving an insertion slot and behind the front wall of the cover.
  • the elongated slide can be thought of as being placed in a vertical plane that is parallel to the front wall of the lid. The normal line of sight is then perpendicular to this plane. In the case of a flat front wall of the lid, in the preferred embodiment considered here, it is close to the viewing direction (1-5 mm) in front of it, or that The window or the sliding window is there.
  • an inlet slope is formed on the side facing away from the locking surface of the bolt and / or between them.
  • the plate to be locked in the embodiment under consideration here, namely the grip tab, can run against the inlet slope when pushed in and thus push it away against the spring pressure in the longitudinal direction of the slide so that the locking surface or locking surface when Inserting the grip tab into its end position is first pushed aside to snap back into locking engagement after the grip tab has been positioned.
  • Different hook shapes are possible here.
  • the entry slope should be on the side facing away from the locking surface of the bolt or next to it. You do not need a special tool to insert the tabs to be locked to bring the slide with its bolts into the unlocked position.
  • Another advantageous embodiment of the invention is characterized in that blocking webs project from the slide approximately perpendicular to its longitudinal and sliding direction and at a distance from one another. Similar to the first embodiment with the hook-shaped bolt, which is also connected to the slide via a web, the bolts themselves are designed as such webs. The hook at the end is missing. This embodiment does not encompass the grip tabs to be locked but lies in front of them from one side, so that the grip tabs on this side cannot be removed or can fall out without deliberate unlocking.
  • the number of blocking webs corresponds to the number of fuse links to be locked in the switch disconnector.
  • the securing insert generally designated 1 in the embodiments shown here, is fastened via its grip tab 2 in the suspension parts 4 forming an insertion slot 3.
  • FIGS. 1 and 2 which consists of switch frame 5 and cover 6 with handle 7, the suspension parts 4 are located in cover 6.
  • Front cover 8 is closed at the front by a sliding window 9, in which test holes 10 are provided at the top and bottom are provided for the voltage test.
  • the terms “above” and “below” are taken from the consideration of FIGS. 1 and 2.
  • the dash-dotted lines 11 in FIG. 1 extend upwards or downwards, which represent the longitudinal direction of the fuse links 1 not shown in FIG. 1 but arranged in the disconnector. If an imaginary coordinate system is spanned, these straight lines, which illustrate the longitudinal direction 11, run in the Y direction. Right across, i.e.
  • the slide 14 with the bolt 15 is displaceable against the X direction (horizontal line 12) against the action of a compression spring 16.
  • three securing inserts 1 lie next to one another in the transverse direction 12, which is why three bars 15 are also formed on the slide 14.
  • the latches 15 are connected in hook form on the slide 14 via the respective web 17.
  • These hook-shaped latches 15 can be seen encompassing the handle tab 2.
  • the slide 14 is located on one side of the handle tab 2 (below), and the latch 15 thus engages over the hook-like shape on the opposite side the grip tab 2 that the locking surface 18 shown in Figure 3 is above the grip tab 2 with the result that they can not move out of the insertion slot 3 between the suspension parts 4 upwards in the longitudinal direction 11 in the + Y direction.
  • the switch frame 5 also has phase partitions 24 which extend between the fuse inserts 1, not shown, up to the position of the slide 14.
  • the cover 6 can be pivoted up into the open position (not shown) with the aid of the bearing guide 26 by pulling the handle 7 in FIG. 1 to the left and in FIG. 2 to the left.
  • the switch frame 5 is fastened via the mounting holes 27 for mounting on a base plate, for example on the plate of a cabinet.
  • the upper part of the cover front wall 8 is cut in a plane perpendicular to the paper plane in FIG. 1 and through the longitudinal direction 11.
  • a connecting web 28 which is part of an L-shaped guide bracket 29, on the horizontally lying connecting web 28 the slide 14 is guided.
  • the cover is also stiffened by this guide bracket 29.
  • the space within this guide bracket 29 behind the sliding window 9 is just enough to accommodate the hollow, cross-sectionally U-shaped box profile of the slide 14 on the outside at the free end of the upper leg of the U, the bars 15 are formed vertically upright.
  • the cross-sectional design of the slide 14 of the other embodiment shown in FIG. 5 has a similar structure.
  • the user can push the slide 14 out of the position shown in FIG. 5 against the force of the compression spring 16 by applying pressure in the transverse direction 12.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
EP97102389A 1996-04-19 1997-02-14 Dispositif de verrouillage pour cartouches à fusibles dans un sectionneur Expired - Lifetime EP0802551B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19615444A DE19615444A1 (de) 1996-04-19 1996-04-19 Verriegelungseinrichtung für Sicherungseinsätze in einem Trennschalter
DE19615444 1996-04-19

Publications (3)

Publication Number Publication Date
EP0802551A2 true EP0802551A2 (fr) 1997-10-22
EP0802551A3 EP0802551A3 (fr) 1998-01-28
EP0802551B1 EP0802551B1 (fr) 2001-12-05

Family

ID=7791710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102389A Expired - Lifetime EP0802551B1 (fr) 1996-04-19 1997-02-14 Dispositif de verrouillage pour cartouches à fusibles dans un sectionneur

Country Status (4)

Country Link
EP (1) EP0802551B1 (fr)
AT (1) ATE210335T1 (fr)
DE (2) DE19615444A1 (fr)
PL (1) PL182231B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006049812A1 (de) * 2006-10-17 2008-04-24 Siemens Ag Sicherungslasttrennschalter und Verriegelungseinrichtung für einen Sicherungslasttrennschalter
EP2428972A3 (fr) * 2010-09-10 2013-04-24 Apator S.A. Sectionneur électrique doté d'un blocage contre l'extraction du couvercle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849875C1 (de) * 1998-10-29 2000-02-17 Geyer Ag Verriegelungseinrichtung für einen zwei- oder vierpoligen, aus einzeln betätigbaren Polen zusammengesetzten NH-Sicherungstrenner oder NH-Sicherungslasttrenner

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1106836B (de) * 1956-03-15 1961-05-18 Pfisterer Elektrotech Karl Mehrpoliger Sicherungstrennschalter mit von aussen einzeln loesbaren Sicherungen
DE2254847B2 (de) * 1972-11-09 1978-11-30 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einfahr-Anordnung
DE7417818U (de) * 1974-05-22 1974-09-19 Siemens Ag Griffeinsatz zur Aufnahme von mehreren, auswechselbaren Schmelzsicherungseinsätzen
DE7503203U (de) * 1975-02-04 1975-06-05 Driescher F Spezialfabrik Fuer Elek Haltevorrichtung tür Sicherungseinsätze
DE2551422C3 (de) * 1975-11-15 1979-05-03 Christian Geyer Gmbh & Co, 8500 Nuernberg Niederspannungs-Hochleistungs-Lastschaltsicherung
CH619320A5 (en) * 1977-10-03 1980-09-15 Weber Ag Fab Elektro Operating handle for a low-voltage, high-rupture-capacity (NH) fuse
NL9100415A (nl) * 1991-03-07 1992-10-01 Tech Handelsmaatschappij Distr Samenstel van een elektrische schakelaar en een zekeringhouder.
DE9305969U1 (de) * 1993-04-20 1993-07-01 Christian Geyer GmbH & Co, 8500 Nürnberg NH-Sicherung
DE9403039U1 (de) * 1994-02-24 1994-07-28 Peterreins Schalttechnik GmbH, 91126 Schwabach Mit Sicherungen versehene Schaltanordnung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006049812A1 (de) * 2006-10-17 2008-04-24 Siemens Ag Sicherungslasttrennschalter und Verriegelungseinrichtung für einen Sicherungslasttrennschalter
EP2428972A3 (fr) * 2010-09-10 2013-04-24 Apator S.A. Sectionneur électrique doté d'un blocage contre l'extraction du couvercle

Also Published As

Publication number Publication date
ATE210335T1 (de) 2001-12-15
PL182231B1 (pl) 2001-11-30
PL319530A1 (en) 1997-10-27
EP0802551A3 (fr) 1998-01-28
DE19615444A1 (de) 1997-10-23
EP0802551B1 (fr) 2001-12-05
DE59705613D1 (de) 2002-01-17

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