Multiphase switching device

文档序号:752021 发布日期:2021-04-02 浏览:14次 中文

阅读说明:本技术 多相开关设备 (Multiphase switching device ) 是由 S.伯特尔 C.哈尔姆 A.克莱因施密特 于 2019-07-18 设计创作,主要内容包括:一种带有开关板(30、31、32、33、34、35)的多相开关设备,其具有垂直的输入壳体模块(6)以及垂直的开关壳体模块(18)。开关壳体模块(18)以及输入壳体模块(6)通过横向壳体模块(14)彼此间隔,其中,所述输入壳体模块(6)、横向壳体模块(14)和开关壳体模块(18)形成第一相位块(1)。多个相位块(1、2、3)在横向壳体(14)的方向上彼此前后相续地对齐。(A multiphase switching device with switching plates (30, 31, 32, 33, 34, 35) has a vertical input housing module (6) and a vertical switch housing module (18). The switch housing module (18) and the input housing module (6) are separated from each other by a transverse housing module (14), wherein the input housing module (6), the transverse housing module (14) and the switch housing module (18) form a first phase block (1). A plurality of phase blocks (1, 2, 3) are aligned one behind the other in the direction of the transverse housing (14).)

1. Multiphase switching device with a switch board (30, 31, 32, 33, 34, 35), having a vertical input housing module (6), which input housing module (6) is connected to a vertical switch housing module (18) by means of a transverse housing module (14), wherein the input housing module (6) and the switch housing module (18) are spaced apart from one another in the direction of the transverse housing module (14) and the input housing module (6), the transverse housing module (14) and the switch housing module (18) form a first phase block (1),

it is characterized in that the preparation method is characterized in that,

a plurality of phase blocks (1, 2, 3) are arranged one behind the other in the direction of the transverse housing (14).

2. Polyphase switching installation with switchboard (30, 31, 32, 33, 34, 35) according to claim 1, characterized in that the phase blocks (1, 2, 3) are constructed essentially identically.

3. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to claim 1 or 2, characterized in that a plurality of phase blocks (1, 2, 3) are arranged parallel to said transverse housing (14).

4. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) as claimed in one of claims 1 to 3, characterized in that a busbar housing module (21) is arranged on the end side of the switch housing module (18), in particular covered by the switch housing module (18).

5. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 4, characterized in that a busbar housing module (25) is arranged on the outer periphery of the switch housing module (18).

6. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 5, characterized in that a drive (21) is arranged on the front switchgear housing module (18), wherein said drive (21) is coupled to the circuit breaker units (19) of successive switchgear housing modules (18) in the direction of the transverse housing (14).

7. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 6, characterized in that a drive device (21) is arranged on the front switchgear housing module (18), said drive device (21) at least partially covering the switchgear housing module (18).

8. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 7, characterized in that an earthing switch module (13, 20) is arranged on said switch housing module (18) and/or on said transverse housing module (14) and/or on said input housing module (6), said earthing switch module (13, 20) being covered by the transverse housing module (14).

9. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 8, characterized in that an earthing switch module (13, 20) is arranged on said switch housing module (18) and/or on said input housing module (6) and/or on said transverse housing module (14), said earthing switch module (13, 20) extending above the transverse housing module (14).

10. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 9, characterized in that a grounding switch module (13, 20) is arranged on said switch housing module (18) and/or on said input housing module (6) and/or on said transverse housing module (14), said grounding switch module (13, 20) extending in the plane of the transverse housing module (14).

11. Polyphase switching installation with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 10, characterized in that the breaker unit (19) forms the breaking interval of the power switch.

12. Polyphase switchgear with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 11, characterized in that the breaker unit (19) forms the breaking interval of the disconnector (16, 22, 26).

13. Polyphase switching installation with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 12, characterized in that the breaker unit (19) forms the breaking distance of the earthing switch (13, 20, 24).

14. The multiphase switchgear assembly with switchboard (30, 31, 32, 33, 34, 35) according to one of claims 1 to 13, characterized in that the housing modules (6, 14, 18, 21, 24) are connected to each other indirectly or directly via interfaces, in particular flanges (8).

Embodiments of the invention are schematically illustrated in the drawings and are further described below. Shown in the attached drawings:

figure 1 is a cross-sectional view of a switchboard for a multi-phase switchgear,

figure 2 is a side view of the switch plate known from figure 1,

FIG. 3 is a side view of the switch plate after modification, and

fig. 4 is a front view of a multi-phase switchgear having six switchboard plates.

Fig. 1 shows a side view of a switching plate of a multiphase switching device in cross section. The switch board has a first phase block 1, a second phase block 2, and a third phase block 3. The three phase blocks 1, 2, 3 are each identically constructed and aligned in the direction of the transverse axis 4 and are aligned one behind the other. A depth axis 5 is arranged perpendicular to the transverse axis 4. In the direction of the depth axis 5, a plurality of switch plates can be arranged in succession in a substantially parallel orientation to one another (see fig. 4). The first phase block 1 forms a frontal phase block. The third phase block 3 forms the end phase block. The second phase block 2 is arranged between the first phase block 1 on the front side and the third phase block 3 at the end.

For example, the structure of the phase block will now be described first as shown in fig. 1 according to the first phase block 1. The first phase block 1 has a vertical input housing module 6. The vertical input housing module 6 has an input housing 7. The input housing 7 is essentially hollow-cylindrically shaped, wherein the hollow cylinder axis is oriented in the vertical direction. The input housing 6 here has a cross section of different form. On the end side, the input housing 7 is provided with a flange 8. A cable connection 9 is arranged at the input-side end of the input housing 7. The cable connector 9 guides the cable 10 into the interior of the input housing 7. The cable connection 9 is in this case connected in a fluid-tight manner to the flange 8 of the inlet housing 7 and closes the flange 8 and thus the inlet housing 7 in a fluid-tight manner. The phase conductor 11 is connected to the cable connector 9 inside the input housing module 6. The phase conductor 11 is guided in the vertical direction from the cable connection 9 through the flange 8 there to the voltage converter housing module 12. The voltage converter housing module 12 closes the flange 8 on the end face in a fluid-tight manner. Inside the voltage converter housing module 12, a voltage converter is arranged, which measures and converts the voltage on the phase conductor 11 located inside the vertical input housing module 6. On the outer circumference side, a first grounding switch module 13 is arranged at the transition height from the cable connection 9 to the phase conductor 11 of the vertical input housing module 6. The first earthing switch module 13 is flanged on the outer circumference of the input housing 7, wherein the respective flanged connections are closed in a fluid-tight manner by the first earthing switch module 13. A movable switch contact 13a of a first grounding switch module 13 is mounted in the interior of the input housing 7. The movable switch contact 13a of the first grounding switch module 13 is permanently connected to ground potential. Depending on the switching state of the first grounding switch module 13, the movable switch contact 13a is inserted into or spaced apart from a contact sleeve of the vertical phase conductor 11 of the input housing module 6 in an electrically insulated manner. Accordingly, the vertical phase conductor 11 of the input housing module 6 and thus the cable connection 9 together with the cable 10 can be earthed via the first earthing switch module 13. Further, an outer peripheral flange 8 is positioned on the input housing 7. A transverse housing module 14 is flanged in alignment in the direction of the transverse axis 4 by means of a flange 8 on the outer circumference. Inside the transverse housing module 14 phase conductors 15 are arranged. The phase conductors 15 are contacted in an electrically conductive manner by means of so-called cable disconnectors 16, which cable disconnectors 16 can switch the transition from the vertical phase conductor 11 of the input housing module 6 to the phase conductor 15 of the transverse housing module 14. For this purpose, the cable disconnector 16 has movable switching contacts which enable separation or contacting of the phase conductors 11, 15 of the vertical input housing module 6 and of the transverse housing module 14. The transverse housing module 14 has a substantially tubular, rotationally symmetrical transverse housing. The transverse housings are aligned or aligned parallel to the transverse axis 4. In the present case, the transverse housing module 14 is provided for carrying a current transformer in order to measure the current flowing through the phase conductors 15 of the transverse housing module 14. For this purpose, the measuring core 17 is mounted externally on the outer circumferential side of the transverse housing module 14. Thus, a so-called external transducer is formed, since the measuring core is located in the surroundings, i.e. outside the space delimited by the transverse housing of the transverse housing module 14.

The vertical input housing module 6 is connected to the vertical switch housing module 18 via the transverse housing module 14. The vertical switch housing module 18 has a switch housing which is designed substantially in the form of a hollow cylinder or rotationally symmetrical, wherein the axis of rotation or hollow cylinder axis is oriented in the vertical direction. The switch housing of the vertical switch housing module 18 is flanged on the outer circumference side to the transverse housing module 14 by means of the flange 8. The transverse housing module 14 thereby connects the input housing module 6 with the switch housing module 18. The switch housing module 18 and the input housing module 6 are spaced apart from one another by the transverse housing 14, wherein the switch housing module 18 and the vertical input housing module 6 are aligned with one another, wherein the axes of rotation or hollow cylinder axes are arranged in parallel. The transverse housing module 14 extends in the direction of the transverse axis 4. In the direction of the transverse axis 4, the three phase blocks 1, 2, 3 are also aligned one behind the other.

Inside the vertical switch housing module 18, a circuit breaker unit 19 of the power switch is arranged. The interrupter unit 19 of the circuit breaker is designed in this case as a vacuum interrupter, in whose interior switching contacts movable relative to one another form a switching gap. On the input side, the circuit breaker unit 19 of the circuit breaker is permanently connected in an electrically conductive manner to the phase conductor 15 of the transverse housing module 14 inside the switch housing module 18. The input side can also be supplied with ground potential via the second grounding switch module 20. Similarly to the first grounding switch module 13, the second grounding switch module 20 has a movable switch contact 20 a. The first and second earthing switch modules 13, 20 are aligned with one another in the direction of the transverse axis 4, the movable switch contacts 13a, 20a projecting away from one another in opposite directions. The switching contact piece 20a which is movable within the vertical switch housing module 18 can be inserted into or electrically insulated from the contact sleeve of the phase conductor on the input side of the circuit breaker unit 19, so that the phase conductor 15 of the transverse housing module 14 can also be grounded via the second grounding switch module 20.

In fig. 1, in the first phase block 1, the positions of the first earthing switch module 13 and the second earthing switch module 20 are determined such that the earthing switch modules 13, 20 are covered by the lateral housing module. Alternative positioning of the first and second earthing switch module 13, 20 is shown on the second phase block 2 of fig. 1 and on the third phase block 3. In all three phase blocks 1, 2, 3, the same phase conductor can be electrically connected to ground potential via the first or second ground switch module 13, 20. Only the location or position of the ground potential coupling device changes.

The first earthing switch module 13 and the second earthing switch module 20 are positioned on the second phase block 2 such that they are positioned on the transverse housing module 14 or on the input housing module 6 such that they are arranged above the plane of the transverse housing module 14. Thus, the space covered by the lateral housing module 14 is free of the grounding switch modules 13, 20 (see the difference in fig. 1, the first phase block 1, the second phase block 2). The position of the earthing switch module 13, 20 is determined in such a way that the movement paths of the movable switch contacts 13a, 20a are substantially perpendicular to one another.

In the third phase block 3 of fig. 1, it is indicated by dashed lines where a first or a second earthing switch module 13, 20 can be further installed. The position of the first or second earthing switch module 13, 20 on the third phase block 3 is selected such that they are positioned horizontally in the plane of the transverse housing module 14. In the present case, the ground switch modules 13, 20 of the third phase block 3, which are indicated by dashed lines, project from the drawing plane toward the observer and together with the transverse housing module 14 define a plane. It is advantageously provided here that the axes of movement of the movable switch contacts 13a, 20a of the two earthing switch modules 13, 20 are oriented substantially parallel to one another. The movement axis of the movable switch contact 13a, 20a is oriented substantially parallel to the depth axis 5.

On the output side, a first busbar housing module 21 is arranged on the end face of the vertical switch housing module 18 on the switch housing. The first busbar housing module 21 has a busbar housing with a first busbar disconnector 22 starting from the output side of the circuit breaker unit 19 of the circuit breaker.

An internally extending first busbar 23 of the first busbar module 21 can be electrically contacted via a first busbar disconnector 22 to the output side of the circuit breaker unit 19 of the circuit breaker. For this purpose, the first busbar disconnector 22 has disconnector contact pieces which can be moved relative to one another.

On the outer circumference of the outlet of the circuit breaker unit 19 of the circuit breaker, a flange 8 is arranged on the switch housing of the switch housing module 18, on which flange 8 a second busbar module 25 can be electrically connected indirectly via an angle grounding module 24 to the outlet of the circuit breaker unit 19 of the circuit breaker. The busbars of the second busbar module 25 are optionally electrically contacted to the output side of the circuit breaker unit 19 of the circuit breaker by means of a second busbar disconnector 26 of the second busbar module 25 with corresponding movable switching contacts. The busbar isolators 22, 26 thus enable the busbars 23, 27 to be in alternating or parallel contact with the output side of the circuit breaker unit 19 of the circuit breaker. By means of the corner grounding module 24, the output side of the circuit breaker unit 19 of the circuit breaker can be brought to ground potential via the movable grounding contact of the corner grounding device here. By means of a corresponding circuit connection, the first busbar 23 and/or the second busbar 27 can also be connected to ground depending on the switching state of the two busbar isolators 22, 26.

The first phase block 1 has a so-called unipolar (single-phase) insulation. In each case only one phase conductor (one pole) is arranged within the individual housing modules, which phase conductor serves for transmitting a phase of the three-phase power transmission system. The electrically insulating fluid arranged in each case inside the housing modules is preferably used only to electrically insulate the same phase conductor in the respective housing module. If necessary, the individual housings can be separated from one another by a fluid-tight barrier, which is arranged in particular in the region of the flange 8. For example, disk insulators inserted into the flange, which are penetrated by the phase conductors, preferably in a fluid-tight manner, can be used as a fluid-tight barrier. In addition to or as an alternative to unipolar insulation, the housing module can also be used for multipolar insulation of the phase conductors. In this case, the electrically insulating fluid enclosed inside the housing module is configured and surrounds a plurality of phase conductors which lead to mutually different potentials.

The structure of which is described, for example, in terms of the first phase block 1. The second phase conductor block 2 and the third phase conductor block 3 have the same structure. In this case, each of the respective cables 10 is supplied with a different electrical phase, so that different voltages are present in each of the phase blocks 1, 2, 3 of the same power transmission system.

A field control cabinet 28 is arranged on the first phase block 1, here the front phase block. The field control cabinet 28 is arranged aligned in front of the vertical switch housing module 18 of the first phase block 1 on the outer circumference side in the transverse axial direction. For example, control devices, measuring devices, control devices, etc. can be accommodated in the field control cabinet 28.

Furthermore, the drive 29, the switch housing of the vertical switch housing module 18, is arranged on the first phase block 1 so as to be covered on the end side. The drive 29 serves to drive the switching contacts of the circuit breaker unit 19 of the circuit breaker, which are movable relative to one another and are positioned inside the switch housing of the vertical switch housing module 18. The drive 29 can preferably also be connected to the circuit breaker units 19 of the second and third phase blocks 2, 3 by means of a kinematic chain for transmitting drive energy.

Similarly to the use of a common drive 29 for all circuit breaker units 19 of the individual phases of the circuit breaker within the first, second and third phase blocks 1, 2, 3, the central drive 29, 29a, 29b can be used for corresponding functionally identical circuit breaker units (circuit breakers, grounding switches, disconnectors) which each pass through a kinematic chain which extends substantially in the direction of the transverse axis and connects the first phase block 1, the second phase block 2 and the third phase block 3 to one another.

In fig. 2, the switching panel known from fig. 1 is shown in a side view, wherein the connection devices from the drive 29, 29a, 29b to the functionally identical circuit breaker units of the circuit breakers, of the disconnector, of the grounding switch module, respectively, extend via a respective kinematic chain extending substantially in the direction of the transverse axis 4. Then in fig. 2, a possible transport design of the switchboard is also shown. The voltage converter housing module 12 can be disassembled for transport, if necessary, in order to reduce the height of the switchboard.

In fig. 3, a variant of the switching plate of the multiphase switching device known from fig. 1 and 2 is shown. The use of obliquely arranged connecting pieces or transverse housing modules 14 is described here, as a result of which the construction of the switchboard can be shortened in the direction of the transverse axis 4.

Fig. 4 shows a front view of the switching plate forming the switching device known from fig. 1, 2 and 3. Fig. 4 shows the first switch plate 30, the second switch plate 31, the third switch plate 32, the fourth switch plate 33, the fifth switch plate 34 and the sixth switch plate 35 in a front view. The section of the switching plate 30, 31, 32, 33, 34, 35 facing the observer in fig. 4 corresponds to the front end of the respective first phase block 1 of the respective switching plate 30, 31, 32, 33, 34, 35. Each two switch plates 30, 31, 32, 33, 34, 35 are directly flanged to each other via the respective first busbar module 21 and the second busbar module 22 located behind, so that the individual vertical switch housing modules 18 can be electrically connected to each other via a respective switching or disconnection of the first and second busbar isolators 22, 26. Accordingly, the cables 10 of the various switch boards 30, 31, 32, 33, 34, 35, which are aligned in the direction of the transverse axis 4, can each be electrically connected to one another. In order to achieve a simplified installation or improved service on the switching plates or on the respective switching phase blocks 1, 2, 3 of the switching plates 30, 31, 32, 33, 34, 35 in the direction of the transverse axis 4, a busbar spacing module 36 is arranged between each second switching plate 31, 32, 33, 34. The busbar spacing module is guided further at 36 within the busbars 23, 26 between the respective busbar modules 21, 25. The spacing of each second switch plate 31, 32, 33, 34 also simplifies the positioning of the kinematic chain in order to be able to transmit the movement of the central drive 29 in the direction of the transverse axis 4 in a distributed manner.

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