DE10008727A1 - Transformer station - Google Patents

Abstract

The transformer station (10) has a room for at least one transformer, at least one medium voltage switching system and a low voltage distributor in one wall and a monolithic cubic cast structure with a panel connecting them together. A ventilation door in at least one wall has at least one through aperture forming an air flow path. The transformer room is bounded on one side by external walls of the station and on the other side by inner walls on which the medium and low voltage parts are mounted.

Description

The invention relates to a substation with a room for at least one transformer, with at least one Medium voltage switchgear and a low voltage ver division in one - walls and a plate connecting them exhibiting - monolithic cuboid cast construction work in which there is a fan door in at least one of the walls with at least one passage gap as a flow path for Air is arranged.

Such substations usually consist of one cuboidal in shape, monolithic from walls and base plate cast structure that on the lawn edge put on and provided with a concrete slab as the roof becomes. For this purpose, it is exemplary to the writing on DE-U-92 14 978 referenced.

In DE-A-198 21 592 there are electrical switching stations described with its lower area in the ground be let in and a transformer, a high voltage part and a low voltage part.

A fan door with a roughly parallel to the bottom edge of the door in their neighborhood passing gap as Flow path for air is the document to DE-U-19 74 231 too remove; this fan door consists of a hollow one Metal profile frame spanning sheet metal plate as a door filling, the plinth area from the door level to the outside is angled and a kind of hood with an inclined desk area forms. This hood is laterally through at the bottom Metal end of the door to be attached separately as dimming limited, and their downward facing - well at right angles to the door plane - opening is from spanned in a horizontal perforated plate in the installed position.  

According to DE-U-88 04 820, the front wall is one monolithically shaped switching station from one double-leaf fan door with horizontal louvers educated. These louvers are between inclined, fixed to a frame at the end Door strips provided.

DE-U-92 06 780 is a fan door with one of Slats formed door leaf become known, in which the Slats through flat front and back sections Determine the depth of the fan door and two each neighboring slats - by means of the front and Back sections of angled cross-sectional parts - meander limit such flow paths.

The Erfin has knowledge of this state of the art which set the goal of a substation at the beginning mentioned type with particularly favorable ventilation and To create inspection options, that is to say for operation is easily accessible.

The teaching of the independent leads to the solution of this task Claim; the subclaims give favorable further training to. In addition, all com fall within the scope of the invention binations from at least two of the ones in the description, the Drawing and / or the features disclosed in the claims.

According to the invention, the one receiving the transformer Transformer room on the one hand through the outer walls of the Substation and on the other hand through an inner wall limited, which the medium voltage as well as the Engages under low voltage parts; this inner wall should preferably consist of three partitions, the middle starts from the front wall and roughly parallel to the Sidewalls runs; its upper edge is approximately at the level of Door threshold - provided under this.  

According to another feature of the invention, the middle partition with another, the Intermediate part of the medium voltage as well as approximately parallel to Front wall extending and adjacent partition wall a support element for a bearing surface of the Medium voltage part; this contact surface includes one Base frame that is parallel to the front wall Partition protrudes towards the rear wall of the building and at least in the so outstanding section with a Cooling grill or the like. Cooling device for flowing gases is provided. It has proven to be beneficial for this Assemble cooling grids from several grid layers, preferably from more than five such layers.

According to the invention, the cooling grille spans part of one Subspace in which at least one cable interception device is arranged and to which the upper edge of the parallel to Front wall extending partition is inclined downwards.

Bordering the partition parallel to the side walls according to the invention on the side facing away from the subspace another partition with a narrow edge. This third The partition is on the other side of a side wall of the building appended, and their height should be less than the heights of the two other partitions described above.

The third partition is advantageously - on the adjacent to this is a right-angled partition - one itself accessible plate extending to the threshold, thanks whose transformer space between the two voltage parts too to achieve.

It has also proven to be beneficial that the Front wall or an inclined one adjoining it Front strips with through openings for cables - so is not provided with standard cable glands; the Front wall limited with the front strip, the base plate and at least one of the cables between the partitions  receiving vestibule for that of part of the Floor slab, the back wall of the building, sections of the Building side walls and the intermediate walls formed liquid-tight floor pan of the building. This For the sake of tightness, the partition walls should be watertight isolated from each other and from the base plate, if necessary be cast monolithically.

Within the scope of the invention there is also a fan door Substation; in this fan door is within one of the cross-sectional length of a door frame or frame profile certain door interior a door insert with one of a base strip going out to this at an angle desk surface inclined away from the outer door surface arranged; the base strip delimits with the Lower edge of a spaced front panel of the Fan door one existing in its outer door surface Passage gap for exhaust air. In addition, this door insert the base strip with adjoining desk surface and - as their other limitation - one to the base strip have parallel end strips, the latter in Installation position assigned to the inner edge of the frame profile is.

According to a further feature of the invention, the Base strip of the door insert of this one each Passage gap flanking pin or spring strips tower; the one formed by the angled desk surface The upper edge of the base strip runs between the two Pin strips used to fix the door insert in Serve slots in the door frame. For that sits the Pins with at least part of its width in an approximately vertical slot or a receiving groove of the Door frame or frame profile. It is particularly cheap if the base strip and the plug strips in three mutually U-shaped receiving grooves of the Frame profile are attached.  

In another embodiment, the base strip is on a protruding from the frame profile, serving as a stop bar Outer rib attached; the latter can be with the inside of you adjacent base strips can be screwed or glued. The frame profile preferably has a hollow profile section with an angled web protruding from the side of the frame on, which is an open channel molding of the Form the frame profile for receiving a sealing element can. This should be in the sealing position of a stop rib or the like. Counter element of the fan door at least partially surround the frame.

To have protection against flight particles and To be able to guarantee poke safety between the inner end strip of the door insert and the Front panel an insert made of a perforated plate extend, preferably from a perforated plate; the latter should be curved so that it is between parallel end strips in turn offers a desk surface inclined to them.

Advantageously, the desk surfaces of the door insert and the perforated insert counter to each other be judged.

Thanks to this invention, a transformer or Transformer station with a specially designed Internal partition in the base area, as well as with a accessible plate in the space between the MV and LV part for better control of the transformer. The basic framework for the MS part protrudes beyond the internal partition Transformer room there and contains the multilayer Cooling grille, so that down from the MS system escaping hot gases enter the transformer room cooled and then be discharged to the outside via the door ventilation. This also includes the bevel described to the front parallel inner wall in the area of the MV system important with the upstream cable clamp for  sufficient cable radii for the cable feed of the MS Investment.

The following conditions are to be regarded as further advantages of the transformer station according to the invention:

• - The bevel of the station front wall and the Breakthroughs in this bevel are used for insertion of MV and LV cables, which was concreted in Replacing cable entries helps;
• - The entire body is with the Z-shaped inner partition can be made from a single mold;
• - despite the omission of cable bushings, this will be Water budget law complied with, as the transformer tub from a pour through the concrete and not openwork inner partition is closed and up in rises 10 cm above the lawn edge;
• - The forming station is very compact because of the offset Arrangement of transformer on the one hand and On the other hand, parts of tension.

The special under-door ventilation is also important especially in manufacturing - but also in use - brings significant advantages; it doesn't have to more side shields manufactured and installed because the door frame profile itself is the lateral one Limitation forms. Street dust is also getting better restrained than with previously known solutions. Since it is in the Fan door itself no longer gives a head start larger opening angle in the in the door reveal reset arrangement of door frame / door leaf. Here the folded sheets can be double-adhesive Simply stick on film or other adhesive techniques.  

Further advantages, features and details of the invention result from the following description more preferred Exemplary embodiments and with reference to the drawing; this shows in

Figure 1 is a front view of a partially un-underground transformer station.

Fig. 2 is a side view of Fig. 1;

Fig. 3 is a vertical section through Fig. 2;

Fig. 4 is a vertical section through Fig. 1;

Figure 5 is a horizontal cross-section through the transformer station of the Figures 1 to 4..;

FIG. 6 shows another horizontal section through FIG. 5, corresponding approximately to that of a transformer station;

. Fig. 7 a of Figure 6 associated Verti kalschnitt renstation by a transformer;;

. Fig. 8, 9, two shown in Figure 3 about respective vertical sections through the transformer station according to the lines VIII-VIII and IX-IX of Fig. 6;

FIG. 10 shows the top view of a base frame indicated in FIG. 6 for a medium-voltage or MV system;

FIG. 11 shows a cross section through FIG. 10;

Fig. 12 is a side view of a cable clamp iron;

FIG. 13 is a section through Figure 12 along line XIII-XIII.

Fig. 14 show enlarged details of Figure 6 according to the arrows XIV.

FIG. 15 is a partial view of Figure 8 after de ren arrow XV.

.. 16 arranged to the left side of the Fig 14 with a therein, partially reproduced fan door;

FIG. 17 is a partial longitudinal section of an installation part for the fan door;

FIG. 18 is a partial longitudinal section through an embodiment of the fan door;

Fig. 19, 21, 23 each a side view under different partitions;

Fig. 20, 22, 24 are end views of the Fig. 19, 21, 23.

A cuboid transformer or transformer station 10 of length a of here 260 cm and width b of 150 cm has, according to FIGS. 1 to 5, side walls 14 cast monolithically on a base plate 12 , as well as a rear wall 15 and a front wall 16 , as well as an attached roof plate 18th The total height h of the monolithic body 12 to 16 measures approximately 240 cm with a maximum thickness e of the roof plate 18 of 10 cm.

The by means of an inclined - recesses as a cable passage 17 offering - front panel 13 on the bottom plate 12 molded front wall 16 is equipped across its clear width with a two-part wing door 20 , the height i determines the installation depth of the transformer station 10 in the ground; in these the transformer gate station 10 with an installation depth 11 under the lawn edge B is embedded. The structure 10 rises above the latter with a free height h ₁ of, for example, 150 cm.

In the exemplary embodiment in FIG. 1, the wing door 20 comprises a left door wing 22 with a ventilation device 24 near the floor and a right door wing 22 _a with two fields 26 made of horizontal slats which delimit passage gaps.

Especially from FIGS . 16 to 18, particular configurations of the door leaf 22 emerge, the opening position of which is indicated in FIG. 16 at 22 _e . On the side wall 14 , a concrete rib 28 is formed, which defines a recess of the construction 10 for the wing door 20 . The frame frame 30, which is formed by extruded hollow profiles, is connected on several sides to these concrete ribs 28 and is provided with a cross-sectionally L-shaped stop rib 32 on its inner wall 31 on the door side; the longitudinal edge of its leg 33, which is directed parallel to the inner wall toward the outside of the station, forms a stop for a sealing profile 36 of the wing door 20 .

The door leaf 22 has a door frame 38 delimiting it - also made from an extruded profile - which comprises a hollow profile section or flank box 39 and an angular web 40 formed on one end thereof; the latter is part of a channel molding which receives that inwardly directed, cross-sectionally rectangular sealing profile 36 . The long leg of the angular piece or angular web 40 limits the bottom of the channel molding with a parallel web of the angular piece 40, a receiving groove 42 for a plug or spring strip 44 of a sheet of thickness f of about 2 mm ge shaped door insert 46th .

The door insert 46 offers between the two ends of a base strip 48 - the height c of preferably 20 to 30 mm - projecting strips 44 of the width n of about 22 mm a desk surface 49 inclined from its plane at an inclination angle t of 30 °, whose length corresponds approximately to the height of the strips 44 . In Fig. 17 rear end of the desk surface 49 is formed by an upturned, parallel to the base strip 48 directed end strip 50 of height c ₁ of 20 mm, to which an upward inclined head strip 50 _a also connect to a height c ₁ can. In the installed position, the desk surface 49 of the door insert 46 runs at a distance r of approximately 25 cm from the lower edge 52 of an upper front plate 54 of the fan door or of the wing 22 . The latter delimits an air passage gap 56 with the upper edge 47 of the base strip 48 . In Figs. 1, 7, however, a wing 22 is shown with a single pass gap 56, a hood 23 extends partially over which the ventilation device 24.

The fan door or the door leaf 22 of the figure. 18 is determined by a door frame or frame profile 38 , the round hollow profile 39 _{a has} an approximately square cross-section with an outer width r of here 44 mm, from which the angular web 40 , that is, the channel molding for the sealing profile 36 , protrudes. This angular web 40 projects all around in front of the front front wall 41 of the hollow profile 39 _a with a width dimension r ₁ of here 5 mm. The front wall 41 is extended by an outer rib 58 which forms an outer stop for the door insert 46 ; this outer rib 58 lies on the inside of the base strip 48 of the door insert 46 . On the inside of the door, there is an edge strip 60 which, with that outer rib 58, defines the inside of the door 21 with a width x of about 38 mm. The edge strip 60 is mounted in a verdeutlichten in Fig. 18, paragraph shoulder of the hollow section 39 _a. The end strip 50 is glued or riveted to an adjacent parallel end strip 62 of a perforated sheet insert 64 .

The perforated sheet insert 64 consists of two mutually parallel end strips 62 and a running between them, each inclined to them at an angle w of 45 ° desk surface 63 of length p of 50 mm. Alternatively, an angular perforated sheet insert can be installed with an end strip provided on the horizontal leg; on the other hand, the vertically extending leg of such a perforated plate insert (not shown) is attached to the inner surface of the upper front plate 54 .

Fig. 14 shows the stop of the frame frame 30 to the Be tonrippen the side walls 14 , Fig. 15 shows the corresponding pairing on the front wall 16th The inner surface of the walls 14 , 16 in the area of the interior of the building is indicated at 19 for the sake of a better overview.

On the base plate 12 near the rear wall 15 in a so-called transformer room 11, a transformer 66 is set up, to which a medium-voltage switchgear or a (MV) medium-voltage part 68 and a low-voltage distribution, i.e. a (LV) low-voltage part 70 , are assigned, and both in From stand to the bottom plate 12 are set. From the latter ra conditions to support those tension parts 68 , 70 three intermediate walls 72 , 74 , 76 , which form a staggered top view - optionally cast onto the base plate 12 - and the middle of which starts at right angles from the front wall 16 and with one of these From stood q ₁ of, for example, 45 cm parallel partition 72 under the medium-voltage part 68 . The third intermediate wall 76 is at a smaller distance q ₁ of, for example, 30 cm from the front wall 16 .

The first two partition walls 72 , 74 of the height y of approximately 74 cm carry a base frame 78 protruding beyond the partition wall 72 parallel to the front wall for the MS part 68 with a cooling grille 79 spanning the surface of the base frame 78 in part - here six-layered; Thanks to this, hot gases escaping from the MS part 68 downward in a subspace 80 can enter the transformer room 11 in a cooled manner and then out through the door ventilation. In the area of the subspace 80 near the front wall, a Halfen rail 82 runs as a cable interceptor; this is equipped at both ends with a bracket 83 in the form of an angle iron. The upper edge 73 of the intermediate wall 72 - a length z of 94 cm here - is inclined toward the front wall 16 downwards like a desk and ends - as can be seen in FIG. 19 - forming an edge recess 71 at a distance from the adjacent side wall 14 . The upper edges 75 , 77 of the two other intermediate walls 74 , 76 run horizontally approximately at the level of the door sill edge 29 ( FIG. 15).

The height y _{1 of} the third intermediate wall 76 with a narrow side 77 _s abutting the middle intermediate wall 74 measures 67 cm, its length z _{1 is} approximately 128 cm with a thickness d of all intermediate walls 72 , 74 , 76 of 100 mm. On this NS intermediate wall 76 is near the transverse partition 74 - in the building center line M - a tread plate 84 square top view.

Claims (28)

1. Substation with a room for at least one transformer, with at least one medium-voltage switchgear and a low-voltage distribution in a wall and a plate connecting this to send, monolithic cuboid cast structure, in which in at least one of the walls a fan door with at least one passage gap as a flow path is arranged for air, characterized in that the transformer space ( 11 ) receiving the transformer ( 66 ) is delimited on the one hand by outer walls ( 14 , 15 ) of the transformer station ( 10 ) and on the other hand by an inner wall ( 72 , 74 , 76 ), over which the medium voltage and low voltage parts ( 68 , 70 ) are arranged. 2. Substation according to claim 1, characterized in that the inner wall consists of three partitions ( 72 , 74 , 76 ), the middle of which extends from the front wall ( 16 ) and runs approximately parallel to the side walls ( 14 ), their Upper edge ( 75 ) is provided approximately at the level of the door sill ( 29 ). 3. Substation according to claim 2, characterized in that the central partition ( 74 ) with a medium voltage part ( 68 ) engaging, approximately parallel to the front wall ( 16 ) and adjoining intermediate wall ( 72 ) supporting element for a support surface ( 78 ) of the medium voltage section. 4. substation according to claim 3, characterized in that the support surface contains a base frame ( 78 ) which extends parallel to the front wall ( 16 ) intermediate wall ( 72 ) to the rear wall ( 15 ) of the structure ( 10 ) and at least in that thus projecting section is provided with a cooling grid ( 79 ) or the like. 5. Substation according to claim 4, characterized in that the cooling grid ( 79 ) detects more than five grid layers. 6. Substation according to claim 4 or 5, characterized in that the cooling grid ( 79 ) spans part of a subspace ( 80 ) in which at least one cable interception device ( 82 ) is arranged. 7. substation according to claim 6, characterized in that the upper edge ( 73 ) of the wall parallel to the front ( 16 ) extending intermediate wall ( 72 ) to the Ka belabfangeinrichtung ( 82 ) is inclined downwards. 8. substation according to claim 6 or 7, characterized in that on the side walls ( 14 ) parallel partition ( 74 ) on the side facing away from the subspace ( 80 ) another partition ( 76 ) with a narrow edge ( 77 _s ) is adjacent and at the other is attached to a side wall ( 14 ) of the building ( 10 ). 9. substation according to claim 8, characterized in that the height (y ₁ ) of the further intermediate wall ( 76 ) is less than the respective height (y) of the other two intermediate walls ( 72 , 74 ). 10. Substation according to claim 8 or 9, characterized in that the further intermediate wall ( 76 ) rests on a walkable plate ( 84 ) extending to the door sill ( 29 ). 11. Substation according to one of claims 1 to 10, characterized in that the intermediate wall ( 72 , 74 , 76 ) is cast onto the base plate ( 12 ) of the structure ( 10 ). 12. Substation according to one of claims 1 to 11, characterized in that the intermediate walls ( 72 , 74 , 76 ) are connected to one another in a watertight manner. 13. substation according to one of claims 1 to 12, characterized in that the front wall ( 16 ) or an adjoining inclined front strip ( 13 ) is provided with through openings ( 17 ) for cables. 14. Substation according to claim 11 and 13, characterized in that the front wall ( 16 ) with the front strip ( 13 ), the base plate ( 12 ) and the intermediate walls ( 72 , 74 , 76 ) at least one antechamber for one of the intermediate walls, the Bottom plate and areas of the outer walls ( 14 , 15 ) formed liquid-tight floor pan of the building ( 10 ) limited. 15. transformer station with a fan door ( 22 ) at least partially surrounded by a frame according to one of claims 1 to 14, characterized in that the fan door ( 22 ) within a of the cross-sectional length of a door frame or frame profile ( 38 ) be certain door interior ( 21 ) has a door insert ( 46 ) which is provided with a desk surface ( 49 ) starting from a base strip ( 48 ) and inclined at an angle (t) away from the outer door surface, the base strip having the lower edge ( 52 ) a spaced front plate ( 54 ) of the fan door delimits a passage gap ( 56 ) existing in its outer door surface. 16. Substation according to claim 15, characterized in that the door insert ( 46 ) has the base strip ( 48 ) with adjoining desk surface ( 49 ) and, as the other limit thereof, an end strip ( 50 ) parallel to the base strip, the last one being in the installed position Inner edge of the frame profile ( 38 ) is assigned. 17. transformer station according to claim 15 or 16, characterized in that on both ends of the base strip ( 48 ) of the door insert ( 46 ) of this one the passage gap ( 56 ) flanking plug or Fe derstreifen ( 44 ) rises, the to the desk surface che ( 49 ) bordering upper edge of the base strip runs between the two plug-in strips. 18. substation according to claim 17, characterized in that the plug-in strip ( 44 ) with at least part of its width (s) in an approximately vertical len slot or a receiving groove ( 42 ) of the door frame or frame profile ( 38 ) sits. 19. Substation according to claim 17 or 18, characterized in that the base strip ( 48 ) and the plug-in strip ( 44 ) in three mutually U-shaped assigned grooves ( 42 ) of the frame profile ( 38 ). 20. Substation according to one of claims 15 to 19, characterized in that the base strip ( 48 ) is attached to a projecting from the frame profile ( 38 ), serving as an impact rib on the outer rib, which is screwed or glued to the base strip lying on the inside thereof. 21. Substation according to one of claims 15 to 20, characterized in that the frame profile ( 38 ) has a hollow profile section ( 39 ) with an angled web on the side of the frame ( 40 ). 22. substation according to claim 21, characterized in that the angular web ( 40 ) an inner guttering of the frame profile ( 38 ) for receiving a sealing element ( 36 ) bil det. 23. Substation according to claim 22, characterized in that the sealing element ( 36 ) in sealing position against a stop rib ( 32 , 33 ) or the like. Ge counter element of the fan door ( 22 ) at least partially surrounding frame ( 30 ) arranged to be applied is. 24. Substation according to one of claims 1 to 23, characterized in that the distance (g) of the lower edge ( 52 ) of the front plate ( 54 ) to the desk surface ( 49 ) of the door insert ( 46 ) is shorter than the clear width (x) the door interior ( 21 ). 25. Substation according to one of claims 1 to 24, characterized in that an insert ( 64 ) extends from a perforated plate between the inner end strip ( 50 ) of the door insert ( 46 ) and the front plate ( 54 ). 26. Substation according to claim 25, characterized in that the insert ( 64 ) consists of a perforated plate with parallel end strips ( 62 ) extending to the desk surface inclined to these ( 63 ). 27. Substation according to one of claims 1 to 26, characterized in that the desk surface ( 49 , 63 ) of the door insert ( 46 ) and the perforated insert ( 64 ) are directed in opposite directions to each other. 28. Substation according to claim 26 or 27, characterized in that the inner end strip ( 50 , 62 ) of the door insert ( 46 ) and perforated sheet insert ( 64 ) are joined together ( Fig. 18).