System for aligning a circuit breaker with a switchgear
阅读说明:本技术 用于将断路器与开关装置的对准的系统 (System for aligning a circuit breaker with a switchgear ) 是由 F·贝洛尼 A·法里纳 于 2018-07-10 设计创作,主要内容包括:一种抽出式断路器(3)包括多个轮(7),以便能够在连接位置和断开位置之间相对于开关装置(5)沿着连接/断开方向(CD)移动,在连接位置中,断路器(3)电气和机械连接到开关装置(5),并且在断开位置中,断路器(3)和开关装置(5)电气和机械断开,其中每个轮(7)都可以沿着横向于连接/断开方向(CD)的旋转轴线(R)旋转。断路器(3)还包括系统,其用于移动所述轮(7)中的每个轮的旋转轴线(R)。(A draw-out circuit breaker (3) comprises a plurality of wheels (7) so as to be movable in a connecting/disconnecting direction (CD) relative to a switching device (5) between a connected position, in which the circuit breaker (3) is electrically and mechanically connected to the switching device (5), and a disconnected position, in which the circuit breaker (3) and the switching device (5) are electrically and mechanically disconnected, wherein each wheel (7) is rotatable along a rotation axis (R) transverse to the connecting/disconnecting direction (CD). The circuit breaker (3) further comprises a system for moving the axis of rotation (R) of each of said wheels (7).)
1. Draw-out circuit breaker (3) comprising a plurality of wheels (7) so as to be movable with respect to a switching device (5) along a connection/disconnection direction (CD) between a connected position, in which the circuit breaker (3) is electrically and mechanically connected to the switching device (5), and an disconnected position, in which the circuit breaker (3) and the switching device (5) are electrically and mechanically disconnected, wherein each wheel (7) is rotatable along a rotation axis (R) transversal to the connection/disconnection direction (CD), characterized in that it further comprises a system for moving the rotation axis (R) of each of the wheels (7).
2. The drawout circuit breaker (3) of claim 1, wherein the system is configured such that the rotational axes (R) of the wheels (7) are movable independently of each other.
3. The draw-out circuit breaker (3) according to claim 1 or 2, wherein the system is configured such that the axis of rotation (R) of each wheel (7) moves transversely with respect to the connecting/disconnecting direction (CD) while maintaining the same orientation with respect to the latter.
4. The drawout circuit breaker (3) of any one of the preceding claims, wherein the system comprises a plurality of pins (8), each pin being inserted into a corresponding pin receptacle (9) of the circuit breaker (3), each of the pins (8) extending along a pin axis (P) and being rotatable in the corresponding pin receptacle (9) about the pin axis (P), each of the pins (8) further comprising an eccentric portion (13), the eccentric portion (13) being eccentric with respect to the pin axis (P), wherein each of the wheels (7) comprises an engagement portion (14) engaged by the eccentric portion (13), the eccentric portion (13) acting as a cam in the engagement portion (14).
5. The drawout circuit breaker (3) of the preceding claim, wherein the eccentric portion (13) extends along an eccentric portion axis (E) that is parallel to and offset relative to the pin axis (P).
6. The drawout circuit breaker (3) of claim 4 or 5, wherein the eccentric portion (13) has a circular cross-section.
7. The drawout circuit breaker (3) of any one of claims 4 to 6, wherein each of the wheels (7) has a through hole (18) defining an inner wall (15), wherein the pin eccentric portion (13) internally engages the wheel inner wall (15).
8. The drawout circuit breaker (3) according to any one of claims 4 to 7, wherein each of the pins (8) comprises an actuating portion (17) allowing rotation of the pin (8) by means of an external tool.
9. The drawout circuit breaker (3) according to any one of the preceding claims, wherein the rotational axis (R) of the wheel (7) is perpendicular to the connecting/disconnecting direction (CD).
10. The drawout circuit breaker (3) of any one of the preceding claims, wherein the rotational axes (R) of the wheels (7) are parallel to each other.
11. The drawout circuit breaker (3) of any one of the preceding claims, further comprising a carriage (4), the carriage (4) supporting the circuit breaker (3), wherein the wheel (7) is coupled to the carriage (4).
Technical Field
The present invention relates to a circuit breaker having a system for alignment of the circuit breaker itself with the switchgear.
Background
Draw-out circuit breakers are known in the art. In particular, in the medium-voltage field, which generally refers to voltages from 1kV to tens of kV, circuit breakers are known comprising tulip-contact-assemblies (tulip-contacts-assemblies) for the mechanical and electrical connection of a movable conducting terminal with a fixed conducting terminal of the switchgear. In particular, the circuit breaker can be moved in a connecting/disconnecting direction relative to the switching device and, for this purpose, it comprises a (preferably motorized) carriage.
In order to ensure correct alignment between the circuit breaker and the switchgear, one or more spacers are generally applied between the circuit breaker itself and the carriage.
However, the use of spacers to reduce misalignment is a time consuming and empirical process that depends largely on the skill of the operator. Typically, this process must be repeated several times before the correct height and/or orientation of the circuit breaker is reached.
Disclosure of Invention
The problem underlying the present invention is therefore to provide a system for alignment of a circuit breaker with a switching device, in which the adjustment can be obtained in an easy manner without great effort on the part of the operator.
This problem is solved by a circuit breaker according to
The dependent claims define possible advantageous embodiments of the invention.
Drawings
Further features and advantages of the invention will become more apparent from the following description of preferred embodiments and alternatives thereof, given by way of example, with reference to the accompanying drawings, in which
Figures 1a and 1b are side views of a circuit breaker and a switchgear device in a disconnected configuration and in a connected configuration, respectively;
FIG. 2 is a perspective view of a switchgear in accordance with a possible embodiment of the present invention;
FIG. 3 is another partially exploded perspective view of the switch device of FIG. 2;
FIG. 4 is an exploded perspective view of individual items of the switch device of FIGS. 2 and 3;
fig. 5a to 5c are side views of the pin of the switching device in fig. 2 to 3.
Detailed Description
In the following description, the same alphanumeric reference numerals are used for similar exemplary elements when they are depicted in different figures.
With reference to fig. 1a to 1b, a switchgear, such as a circuit breaker, is indicated with
In the embodiment shown in the figures, the
The
The circuit breaker 3 (in particular the carriage 4) comprises a plurality of
The
Preferably, the system is configured such that the axes of rotation R can be moved independently of each other.
According to a possible embodiment, the system is configured so that each rotation axis R moves transversely with respect to the connection/disconnection direction CD, while maintaining the same orientation with respect to the connection/disconnection direction CD.
The system for moving the rotation axis R of the
According to a possible embodiment, each
The
Advantageously, the
Advantageously, the
As is clear from the figure, the wheel
Advantageously, the pin
Advantageously, the
Of course, the shape and configuration of the system for moving the rotation axis R of the
From the above description, the skilled person will appreciate how the circuit breakers according to the present invention are easily aligned with the switchgear by acting on each of their wheels. This operation is fast and economical and can be easily repeated as required during the service life of the circuit breaker.
To the above-described embodiments, a skilled person may make several additions, modifications or substitutions to the elements using other operationally equivalent elements without departing from the scope of the appended claims in order to satisfy specific current requirements.
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