EP1952497A2 - Installation electrique, en particulier, installation de distribution moyenne tension, et canal de decompression pour une telle installation - Google Patents

Installation electrique, en particulier, installation de distribution moyenne tension, et canal de decompression pour une telle installation

Info

Publication number
EP1952497A2
EP1952497A2 EP06830047A EP06830047A EP1952497A2 EP 1952497 A2 EP1952497 A2 EP 1952497A2 EP 06830047 A EP06830047 A EP 06830047A EP 06830047 A EP06830047 A EP 06830047A EP 1952497 A2 EP1952497 A2 EP 1952497A2
Authority
EP
European Patent Office
Prior art keywords
pressure relief
relief channel
channel
functional module
plates
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.)
Withdrawn
Application number
EP06830047A
Other languages
German (de)
English (en)
Inventor
Karl Schudt
Rainer Stolz
Dieter Zweng
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1952497A2 publication Critical patent/EP1952497A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect

Definitions

  • the invention relates to an electrical system, in particular a medium-voltage switchgear, as it is known for example from DE 91 02 514 Ul.
  • the invention disclosed there electrical ⁇ specific system comprises a plurality of metal-functional modules and a portion extending parallel to a front side of the electrical system, in each case closed at one pressure relief channel.
  • the pressure relief channel includes min ⁇ least a bottom inlet opening for connection of the respective functional module to the pressure relief channel like a so-roof-side outlet opening.
  • the roof side from ⁇ opening is formed channel-extending discharge slots by a plurality of transversely to the pressure relief ⁇ which open into an exhaust passage.
  • the outlet slots of DE 91 02 514 Ul are arranged at the ends of the switchgear or centrally above the switchgear for connection to the exhaust duct.
  • an electrical switchgear with a pressure relief channel which has at least one ventilation device with mutually offset ventilation openings.
  • the pressure relief channel comprises for each function module, a Lüftungsvor ⁇ direction, which has several parallel to Druckentlas ⁇ processing channel arranged outlet slots.
  • a Austre ⁇ th of the gases from the pressure relief channel is prevented by other ventilation devices that close in the event of arcing.
  • the ventilation device of DE 101 47 43 C1 is in each case assigned to a functional module of the electrical switchgear.
  • Another system is known from DE 31 25 364 C1.
  • the electrical system disclosed therein comprises a plurality of encapsulated functional modules, which are in communication via inlet openings with a compensation channel running transversely to the installation as a pressure relief channel.
  • the pressure relief channel extends in this system over a plurality of functional modules and forms an expansion volume for pressure relief to dissipate the in the event of arcing in one of the function ⁇ space resulting hot gases, as well as persons staying so that both the facility located in the area of the plant , are protected from the gases.
  • the Druckentlastungska ⁇ nal in this case has a channel extending in the direction of the pressure relief ⁇ roof side outlet opening through which the gas can escape upwards.
  • Object of the present invention is to provide an electrical system of the type mentioned above, which reduces a risk for people in the surrounding area of the system in egg ⁇ nem simple structure.
  • an electrical ⁇ specific installation in particular a medium-voltage switchgear, extending with at least one metal-encapsulated functional module and ei ⁇ nem parallel to a front side of the electrical system, each closed-end Druckentlas ⁇ processing channel with at least one bottom inlet opening for connection of the respective Functional module with the pressure relief channel and a plurality of transversely extending to the pressure relief ⁇ channel exit slots, which are covered by spaced above them arranged cover plates with a width corresponding to the width of the outlet slots.
  • the hot gases resulting from an arc are safely removed for the system and people located in the surrounding area in an advantageous manner by scattering the gases on the cover plates as they exit via the exit slots and thus advantageously in a non-directional manner Surround space be distributed.
  • the transverse alignment of the outlet slots in a deformation of the pressure relief passage closing of the outlet slots is avoided by material deformation in an advantageous manner.
  • the pressure relief channel has at least at the side regions of each functional module in each case one outlet slot. Through such placed exit slots, the mechanical strength of the pressure relief channel is largely preserved on its roof side in an advantageous manner.
  • the outlet slots between adjacent functional modules are covered by means of a common cover plate.
  • a roof side of the pressure relief channel each have a baffle plate for each functional module, and each baffle plate has a smaller width than the width of the functional modules.
  • the cover plates are each secured by means of a plurality of webs to form lateral outlet openings on the baffle plates and attached to end cover plates of the pressure relief channel channel closure plates.
  • ⁇ actuation side in a simple manner between the webs outlet openings can be realized for the present in the pressure relief channel in a case of a fault gas, and the pressure relief duct is sen ⁇ end 29los- in a simple manner.
  • the channel closure plates are formed by parts of the housing walls of the at least ei ⁇ NEN functional module. Through the housing walls, the channel closure plates are formed in a simple manner.
  • the pressure relief channel has a bottom with the at least one bottom-side inflow opening and is connected with its bottom fixed to the at least one functional module. Through the bottom of the pressure relief channel is advantageously carried out as a separate module for the electrical system according to the invention.
  • a further embodiment of the invention is a vertical distance between the respective cover plate and the associated baffle plates between 40 mm and 60 mm. At such a distance in an advantageous manner, a relief duct emerging from the pressure gas flow is diffused by the cover plate to the surroundings such that on the one hand both a reflecting back of the gas stream in the Druckentlastungska ⁇ nal and on the other hand, a directional leakage of the gas ver ⁇ be prevented.
  • the vertical distance between the respective cover plate and the associated baffle plates is 50 mm. In a series of experiments, such a distance has proven to be particularly advantageous for a scattering of the gas flow and thus for an undirected escape.
  • the baffles have a thickness of 2 mm.
  • An advantage of such a thickness of the baffle plate is a barrel-like deformation of the baffle plate at a pressure surge occurring, so that the pressure energy is converted into deformation energy and degraded without damaging the environment of the system thereby.
  • the electrical system of the pressure relief channel has a rectangular cross-section on ⁇ .
  • a rectangular cross-section provides beneficially ⁇ manner the largest possible expansion volume of the pressure relief channel via the function modules.
  • the invention further relates to a Druckentlastungska ⁇ channel for an electrical system, in particular a medium ⁇ voltage switchgear , as it is known for example from DE 91 02 514 Ul. It is also an object of the present invention to form a pressure relief channel for an electrical system, which reduces a risk to persons in the surrounding area of the plant with a simple structure.
  • a pressure relief channel for an electrical system in particular a medium voltage ⁇ voltage switching system, which has at least one metal-enclosed functional module, wherein the pressure relief channel at least one bottom inlet opening for connecting the respective functional module with the pressure relief channel as ⁇ several transverse to the pressure relief channel having extending exit slots, which are covered by spaced over them arranged cover plates with a width corresponding to the width of the exit slots.
  • Such a pressure relief channel may in a simple manner placed on the electrical system are the resulting from egg nem arc in the system hot gases Men safely located for the plant and in the surrounding region are discharged ⁇ rule by the pressure relief channel in an advantageous manner by the gases be scattered when exiting through the outlet slots on the cover plates and thereby distributed advantageously undirected in the ambient space.
  • the gases be scattered when exiting through the outlet slots on the cover plates and thereby distributed advantageously undirected in the ambient space.
  • the pressure relief channel of the invention may be embodied in Kunststoffaji ⁇ under way. Further embodiments and advantageous further developments are evident from the dependent claims and with reference to the below-described guide From ⁇ example.
  • the invention will hereinafter the drawing and an embodiment with reference with reference to the accompanying Figu ⁇ ren explained in more detail.
  • FIG. 1 shows a cross section through a functional module in one
  • Embodiment of the invention electrical see plant with an embodiment of it ⁇ inventive pressure relief channel;
  • Figure 2 is a perspective view of an exemplary embodiment of the inventive electrical system with two functional modules shown in FIG. 1
  • the functional module 1 illustrated in FIG. 1 comprises a plurality of functional spaces 2, 3, 4, 5, which are designed as connection space 2, as power switch 3 or as busbar space 4.
  • the function spaces 2, 3, 4, 5 are separated via bulkhead walls 6, 7, 8, 9, wherein the functional module 1 by means of external walls ⁇ 10 is encapsulated from the environment.
  • a pressure relief channel 11 Arranged on the functional module is a pressure relief channel 11 which communicates with the functional spaces 2, 3, 4 via inflow openings 12 to 15 in the bulkhead 9 for gas exchange.
  • the inlet openings 12, 13, 14, 15 are covered with ⁇ means flap systems 16, 17, 18, wherein the flap ⁇ systems 16, 17, 18 fortified by loosely on the inlet openings lying flaps or on one side of the bulkhead 9 Flaps are formed so that an occurring pressure wave opens the flaps and can enter a gas flow in the pressure relief channel.
  • roof side 19 of the pressure relief passage 11 is bounded by a baffle plate 20, on which Baffle plate 20 a cover plate 21 spaced above webs 22 is attached.
  • the width of the baffle plate 20 is selected so that it is smaller than the width of thejansmo ⁇ module, so that in the region of the roof side 19 of the pressure relief channel 11 discharge slots 23 are formed, which by the cover plate 21 upwardly spaced to form Outlet openings 24 are covered.
  • FIG. 2 shows an electrical system according to the invention with a pressure relief channel 11 which extends transversely to two ne ⁇ juxtaposed functional modules 1, 1 'along the entire system.
  • a pressure relief channel 11 which extends transversely to two ne ⁇ juxtaposed functional modules 1, 1 'along the entire system.
  • such a system may comprise a plurality of functional modules 1, 1 '.
  • On the roof side 19 of the pressure relief channel 11 this is limited by the baffle ⁇ che 20, 20 ', wherein the smaller width of the bounce surface 20, 20' with respect to the width of the functional modules 1, 1 'between the baffles 20, 20' adjacent functional modules.
  • Spaced 'the cover plates 21, 21 are' on jeweili ⁇ gen discharge slots 23, 23 are arranged, namely such that cover plates,
  • Cover exit slot are secured to both baffles by means of the webs 22, and cover plates, which end exit slots at the edge of the system, so zwi ⁇ rule the respectively first or last functional module 1 or 1 'and a first or second housing wall 25 and 26, from ⁇ cover, respectively attached to the associated baffle plate and the respective housing wall.
  • the attachment can be formed by means of a screw connection of the webs or by welding or similar fastening measures.
  • the upwardly spaced-apart cover plates 21, 21 'de ⁇ CKEN the exit slots 23, 23' to form the union since ⁇ outlet openings 24 from.
  • the hot gas can escape into the environment via the outlet slots 23, 23 'formed between adjacent baffle plates, whereby a scattering of the hot gas is ensured by the cover plates 21, 21', so that both the system and persons, which are in the Environment of the plant are located, are protected from the hot gas.
  • the distance between the From ⁇ cover plates 21, 21 'and the discharge slots 23, 23' which typically mm is about 50, is on the one hand a direct reflecting back of the gas stream in the Pressure- lastungskanal 11 suppressed, and on the other hand, a ge ⁇ is directed Prevent escape of the hot gas, so that a reflection of the hot gas is prevented for example on the ceiling of a surrounding space.
  • the Druckent ⁇ load channel 11 is initially open at its end sides and is closed during assembly of the electrical system by upwardly projecting ends of the housing walls 25 and 26.
  • the pressure relief channel can also be closed at both ends by channel closure plates. In this case, there is no need for upwardly projecting housing walls of outer functional modules.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Patch Boards (AREA)

Abstract

L'invention concerne une installation électrique, en particulier, une installation de distribution moyenne tension, comprenant au moins un module fonctionnel sous blindage métallique (1, 1'), et un canal de décompression (11) fermé à chaque extrémité, s'étendant parallèlement à la partie avant de l'installation électrique, ayant au moins une admission, côté sol (12, 13, 14, 15) pour le raccordement du module fonctionnel respectif (1, 1') avec le canal de décompression, ainsi que plusieurs fentes de sortie s'étendant perpendiculairement au canal de décompression (11), lesquelles sont recouvertes par des tôles de recouvrement (21, 21') disposées à distance au-dessus desdites fentes de sortie (23, 23'), sur une largeur correspondant à la largeur de ces fentes de sortie (23, 23').
EP06830047A 2005-11-21 2006-11-20 Installation electrique, en particulier, installation de distribution moyenne tension, et canal de decompression pour une telle installation Withdrawn EP1952497A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510056189 DE102005056189B4 (de) 2005-11-21 2005-11-21 Elektrische Anlage, insbesondere Mittelspannungsschaltanlage und Druckentlastungskanal für eine solche Anlage
PCT/EP2006/068663 WO2007057460A2 (fr) 2005-11-21 2006-11-20 Installation electrique, en particulier, installation de distribution moyenne tension, et canal de decompression pour une telle installation

Publications (1)

Publication Number Publication Date
EP1952497A2 true EP1952497A2 (fr) 2008-08-06

Family

ID=37989608

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830047A Withdrawn EP1952497A2 (fr) 2005-11-21 2006-11-20 Installation electrique, en particulier, installation de distribution moyenne tension, et canal de decompression pour une telle installation

Country Status (3)

Country Link
EP (1) EP1952497A2 (fr)
DE (1) DE102005056189B4 (fr)
WO (1) WO2007057460A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003639B3 (de) * 2007-01-16 2008-03-27 Siemens Ag Elektrische Anlage, insbesondere Mittelspannungsschaltanlage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110951A1 (de) * 1981-03-20 1982-09-30 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Anordnung zur druckentlastung
DE3125264A1 (de) * 1981-06-26 1983-01-13 Hydromatik Gmbh, 7900 Ulm Schraegachsen-axialkolbenmaschine mit einer mitnahmeplatte fuer die zylindertrommel
DE9102514U1 (de) * 1991-03-02 1991-05-23 ABB Patent GmbH, 6800 Mannheim Elektrische Mittelspannungsschaltanlage
DE4312022A1 (de) * 1993-04-13 1994-10-20 Concordia Sprecher Energie Schaltzellenanordnung, insbesondere für Mittelspannungsanlagen
DE10114743C1 (de) * 2001-03-20 2002-11-28 Siemens Ag Elektrische Schaltanlage mit einer Lüftungsvorrichtung und Lüftungsvorrichtung mit zwei Lüftungselementen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007057460A3 *

Also Published As

Publication number Publication date
WO2007057460A2 (fr) 2007-05-24
DE102005056189B4 (de) 2007-07-12
WO2007057460A3 (fr) 2007-07-05
DE102005056189A1 (de) 2007-05-24

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