WO2016190827A1

WO2016190827A1 - Switching mechanism comprising the combination of breaker, separator and grounding apparatus

Info

Publication number: WO2016190827A1
Application number: PCT/TR2015/050086
Authority: WO
Inventors: Gani KÖSE
Original assignee: Sfa Elektromekani̇k Elektri̇k Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
Priority date: 2015-05-28
Filing date: 2015-09-03
Publication date: 2016-12-01
Also published as: EP3204958A1

Abstract

The invention is a separator contact bearing mechanism (2) which is used in the systems pertaining to the switching control units and enables the combination of the separator, breaker and grounding systems in a single system without need for any additional separator and grounding apparatus. The separator, breaker and grounding mechanism (5) enabling operation and control of the separator contact bearing mechanism (2) contains a motion transfer element (9) which transfers the motion from the breaker separator mechanism (5) to the separator mechanism motion element (13). The separator mechanism motion element (13), which enables operation of the separator contact bearing mechanism (2) with the motion from the motion transfer element (9), rotates around its own axis, thus enables upward and downward motion of the contact element (10). Thus, the contact element (10) moves upwards and downwards, energizing and de-energizing the system.

Description

Switching Mechanism Comprising the Combination of Breaker, Separator and

Grounding Apparatus

Technical Field

The invention relates to breaker, separator and grounding apparatus combination used in the products for the medium voltage switching control units.

The invention particularly relates to breaker, separator and grounding mechanism that enables the execution of separator, grounding apparatus and breaker functions in a single mechanism without any need for individual separator and breaker, grounding mechanisms.

Prior Art

Breaker, circuit breaker or switch is a switch that steps in automatically and protects an electric circuit from overcurrent or short circuit. The primary function thereof is to detect any malfunction that disturbs the perpetuity of the circuit and promptly cut the electric current. In comparison with the fuse, the breaker is capable of switching to its normal operation position manually or automatically after performing any operation. The breakers are made in many diverse sizes. The breakers can be used not only for protecting household devices, but also at the high voltage switchyards.

The separators, on the other hand, are used for insulating the system from the voltage at high voltage lines. The separators are not used for breaking the current. They cannot be turned on and off when there is current in the circuit. Separators are located on the path of the breakers. They are positioned before and after the breaker. During maintenance and repair of the breaker, the separators are turned on after the breakers are turned on. When current is reapplied to the system, first the separators are turned off. Then, the breakers are turned off, thus supplying energy to the system. The separators should not be turned on in the presence of the current. If the separators are turned on in the presence of the current, it might damage its surroundings due to the arc that might occur. If they are turned on and off when there is current in the system, they might cause serious damages. Today, various separators are in use depending on the strength of the current. In current embodiments, the separator, breaker and grounding systems are designed individually. Said systems cover separate volumes within the unit. Therefore, the units produced in this manner are large by volume and by weight. At the separator, breaker and grounding units, the separator, grounding apparatus and the breaker are separate units and installed within a single unit. As available separator, breaker and grounding units have individual separator and breaker mechanisms, the personnel responding to the malfunctions and performing maintenance work should be more attentive, which, in turn, causes prolonged repair and maintenance operations. Again in the current embodiments, the fact that the separator, grounding apparatus and breaker are separate systems causes complications in the systems. The maintenance and troubleshooting periods are prolonged in maintenance and failure cases. Separator being an individual unit further increases production time and costs. Individual parts are manufactured in longer times and more time is spent for assembly of the parts, which, in turn, causes increased workmanship and costs.

During the patent research conducted as regards to the separator, breaker and grounding systems; some applications are encountered as regards to the prior art. One of these applications is a Chinese application no. CN102368592. This application mentions a mechanism that combines the separator, breaker and grounding systems in a single system. The structure of this system is complicated. There are multiple conduction elements and there is no mechanism available that directly turns on and off the breaker. The pole available on this mechanism covers a large volume. Due to multitude of parts and complexity of the system, any repair and maintenance operations might prove to be challenging. The system cannot be applied to wherever needed due to large space covered by the separator, breaker and grounding mechanism.

Another application again associated with the separator, breaker and grounding mechanisms is the application no. EP1965476. Said application mentions a separator and breaker system assembled to the switching unit. The system structure comprises a multitude of parts. Moreover, the connections between the parts appear to be complex. The multitude of parts and their complex structure might prove to be a challenge in case of any malfunction and maintenance. In conclusion, developments are made as regards to the systems containing separator, breaker and grounding apparatus; therefore, new configurations that will eliminate the aforementioned disadvantages and provide solutions to the available systems are required.

Object of the Invention

The present invention relates to a separator bearing mechanism which enables the separator, grounding apparatus and breaker to be used in a single system that meets the aforementioned requirements, eliminates all disadvantages and provides some additional advantages.

The object of the invention is to combine the separator, breaker and grounding elements under a single structure and to execute their controls from a single mechanism; thus reducing the loss of production, workmanship and time.

An object of the invention is to save additional space in the system by reducing the individual volume and weight of the separator, breaker and grounding elements by combining the separator, breaker and grounding elements under a single structure, thus to reduce production and workmanship costs.

Another object of the invention is to combine the separator, breaker and grounding elements under a single structure, thus to deviate the system from complexity; and in this manner, to reduce the repair and maintenance costs and facilitate repair and maintenance operations, wherein savings on time and cost are ensured by enabling the repair and maintenance personnel to spent less time on such operations.

Another object of the invention is to combine the separator, breaker and grounding elements in a single system, thus produce more secure, simpler switching products occupying less space, wherein security and space constraints are minimized.

In order to fulfill aforementioned objects, a separator contact bearing mechanism which is used in systems pertaining to the medium voltage switching control units, enables combination of the separator, breaker and grounding systems in a single system without need for any additional separator and grounding units, contains a main bus bar transferring energy to the system and a breaker pole used for energizing or de- energizing the system, and is capable of being positioned in the system before or after the said breaker pole, characterized in comprising separator, breaker and grounding mechanism which drive the contact bearing mechanism by means of the motion transfer element, thus enabling operation and control of said separator contact bearing mechanism; a motion transfer element which transfers the motion driven by the breaker separator mechanism to the separator mechanism motion element by means of vertical transfer element and horizontal transfer element; a horizontal transfer element which transfers the motion received by the motion transfer element and vertical transfer element to the separator mechanism motion element; a vertical transfer element which transfers the motion received by the motion transfer element and horizontal transfer element to the separator mechanism motion element; a contact element positioned on the separator mechanism motion element, which enables or breaks the energy flow between the breaker pole and the main bus bar; a groove duct located on the separator mechanism motion element and acting as a guide for enabling upward or downward motion of the contact element; a motion drive positioned within the groove duct and enabling upward or downward motion of said contact element within the groove duct; and a separator mechanism motion element which houses the groove duct and the motion drive and enables operation of said separator contact bearing mechanism by moving the contact element upward or downward by virtue of the motion driven by the motion transfer element.

A separator contact bearing mechanism, characterized in comprising an insulator which ensures the link between the main bus bar and the contact element and which insulates the contacts in the main bus bar chamber.

Brief Description of the Figures

The present invention should be considered together with the figures described hereunder in order to comprehend the advantages of the present invention in the best manner together with the embodiments and additional elements.

Figure-1 is the view of the separator, breaker and grounding system in the cell.

Figure-2 is the general view of the separator, breaker and grounding system.

Figure-3 is the view wherein the separator, breaker and grounding contact is at on- position.

Figure-4 is the view wherein the contact of the breaker system is at off-position.

Figure-5 is the detailed view of the contact of the breaker system. Part Numbers

I .Breaker pole

2. Separator contact bearing mechanism

3. Insulator

4. Main bus bar

5. Breaker separator mechanism

6. Frame

7. Vertical transfer element

8. Horizontal transfer element

9. Motion transfer element

10. Contact element

I I .Groove duct

12. Motion drive

13. Separator mechanism motion element

14. Grounding apparatus

Detailed description of the Invention

In this detailed description, preferred embodiments of the separator contact bearing mechanism (2), which enables combination and co-operation of the separator, breaker and grounding systems in a single system are described only for better comprehension of the subject matter without any limiting effects.

General Structure of the System

Said invention generally comprises the de-energizing breaker pole (1 ); separator contact bearing mechanism (2) that turns on and off the connection between the breaker pole (1 ) and the main bus bar (4); separator contact bearing mechanism (2) and the breaker separator mechanism (5) controlling the breaker pole (1 ).

Figure 1 illustrates the view of the separator contact bearing mechanism (2) within a cell. The breaker separator mechanism (5) illustrated here is the element that enables the controls on the breaker and separator contact system. When it is intended to de- energize or re-energize the system, the breaker separator mechanism (5) drives suitable motion to the separator contact bearing mechanism (2) by means of the motion transfer element (9). Likewise, the illustrated frame (6) is the structure that bears and protects the structures within the system. The breaker pole (1 ) is the structure that cuts the energy that the system receives externally. Main bus bar (4), on the other hand, is the energy transmission line. The energy is transmitted to the system from here. The system also includes a grounding apparatus (14). Figure 2 illustrates the general view of the breaker separator system. The insulator (3) illustrated here enables the connection between the main bus bar (4) and the contact element (10) and insulates the contacts in the main bus bar (4) chamber. Figure 3 illustrates the close-up view of the separator contact bearing mechanism (2). Here, the contacts of the separator contact bearing mechanism (2) are at on-position. Figure 4, on the other hand, illustrates the condition where the contacts of the separator contact bearing mechanism (2) are at off-position.

Separator contact bearing mechanism (2) is the main element that enables the system to function as separator, breaker and grounding apparatus simultaneously. The mechanism enables or terminates the connection between the breaker pole (1 ) and the main bus bar (4) by moving the contact element (10) upward and downward. The separator contact bearing mechanism (2) comprises a separator mechanism motion element (13) containing groove duct (1 1 ), a contact element (10), a horizontal transfer element (8), a vertical transfer element (7), a motion drive (12) and a motion transfer element (9). Here, said contact element (10) is the element that enables energy transfer between the breaker pole (1 ) and the main bus bar (4). By virtue of the contact element (10), the energy supplied by the main bus bar (4) reaches to the breaker pole (1 ). In a preferred embodiment of the system, the contact element (10) has a cylindrical form and is manufactured from copper. Various forms of contact element (10) configurations can be used in the system.

When detail c in Figure 3 is observed, the vertical transfer element (7) and the horizontal transfer element (8) are seen. In a preferred embodiment of the system, the vertical transfer element (7) and the horizontal transfer element (8) are designed in the form of a bevel gear. Here, worm configurations can also be used instead of a bevel gear. All kinds of transfer elements conforming to the motion transfer system can be used. Again in the same detail c, the motion transfer element (9) is illustrated. In a preferred embodiment of the system, the motion transfer element (9) is designed in the form of a shaft. Various configurations can also be used in the system instead of the shaft. The motion transfer element (9) is the element that transfers the motion from the breaker separator mechanism (5) to the separator contact bearing mechanism (2). Aforementioned vertical transfer element (7) is the element that transfers the motion from the breaker separator mechanism (5) to the separator contact bearing mechanism (2) together with the motion transfer element (9) and the horizontal transfer element (8). Again, horizontal transfer element (8) is the element that transfers the motion from the breaker separator mechanism (5) to the separator contact bearing mechanism (2) together with the motion transfer element (9) and the vertical transfer element (7).

Figure 4 illustrates the condition where the contacts of the separator contact bearing mechanism (2) are at closed position. Here, when detail a is examined, the horizontal transfer element (8) and vertical transfer element (7) are illustrated as zoomed. The separator mechanism motion element (13) illustrated in the figure is in the form of a cylinder containing groove ducts (1 1 ) thereon, but it can also be designed with different shapes. The separator mechanism motion element (13) is a structure designed in the form of a shaft that enables the separator contact bearing mechanism (2) to move the contact element (10) upward and downward.

Figure 5 illustrates zoomed view of the contact part of the separator contact bearing mechanism (2). Here, the contact element (10), separator mechanism motion element (13) and the vertical transfer element (7) are illustrated as zoomed. Again here, when detail b is examined, the motion drive (12) and the groove duct (1 1 ) are illustrated. The groove duct (1 1 ) illustrated here is a path that enables upward and downward motion of the contact element (10) located on the separator mechanism motion element (13). Motion drive (12), on the other hand, is connected to the contact element (10). Motion drive (12) is the element that drives the upward or downward motion of the contact element (10) within the groove duct (1 1 ). In a preferred embodiment of the system, the motion drive (12) has the form of a pin. Various configurations can be used for the motion drive (12).

Operation Method of the System

When it is intended to de-energize the system, first the energy input to the system is terminated via breaker pole (1 ). After the energy input is terminated, the separation process is performed by virtue of the separator contact bearing mechanism (2) without requiring any further separator configuration. Prior to the separation process, the contacts of the separator contact bearing mechanism (2) are at closed position; that is to say, the contact element (10) is within the insulator (3). This case is illustrated in Figure 4. During separation process, the breaker separator mechanism (5) becomes activated. The motion transfer element (9) transfers the motion from the breaker separator mechanism (5) to the separator mechanism motion element (13) by means of the horizontal transfer element (8) and vertical transfer element (7). The insulator (3) provides the link between the bus bar and the contact copper and insulates the contacts within the main bus bar (4) chamber.

Separator mechanism motion element (13) rotates around its axis by means of the rotational motion from the motion transfer element (9). Accordingly, by virtue of the motion drive (12) moving within the groove duct (1 1 ), the contact element (10) is separated from the insulator (3). Therefore, the energy flow between the contact element (10) and main bus bar (4) is terminated, thus executing the separation process. The view of the contact element (10) and the separator contact bearing mechanism (2) when the separation process is performed is illustrated in Figure 3. Here, the contact element (10) is out of the insulator (3) and there is no energy flow between the main bus bar (4) and the contact element.

When it is intended to re-energize the system, the process described above is reversed. The motion transfer element (9) rotates in reverse direction with the motion from the breaker separator mechanism (5). Thus, the separator mechanism motion element (13) rotates around its own axis and moves the contact element (10) upwards, thus restoring the energy flow between the main bus bar (4) and the contact element (10). This case is illustrated in Figure 4. The contact element (10) is within the insulator (3).

Here said separator contact bearing mechanism (2) eliminates the need to use the separators available in the prior art. Accordingly, problems such as excessive volume, high cost, prolonged maintenance duration and additional workmanship costs can be eliminated.

Claims

1. A separator contact bearing mechanism (2) which is used at medium voltage switching control units, enables combination of the breaker, grounding and separator systems in a single system without need for any additional separator and grounding apparatus, and comprises main bus bar (4) energizing the system and a breaker pole (1 ) used for de-energizing or energizing the system, can be positioned in the system before or after said breaker pole (1 ), characterized in comprising;

- a motion transfer element (9) which transfers the motion that it receives to the separator mechanism motion element (13) by means of vertical transfer element (7) and horizontal transfer element (8);

- a horizontal transfer element (8) which transfers the motion received by said motion transfer element (9) and said vertical transfer element (7) to the separator mechanism motion element (13);

- a vertical transfer element (7) which transfers the motion received by said motion transfer element (9) and said horizontal transfer element (8) to the separator mechanism motion element (13);

- a contact element (10) positioned on said separator mechanism motion element (13), which enables or breaks the energy flow between said breaker pole (1 ) and said main bus bar (4);

- a groove duct (1 1 ) located on said separator mechanism motion element (13) and acting as a guide for enabling upward or downward motion of the contact element (10);

- a motion drive (12) positioned within said groove duct (1 1 ) and enabling upward or downward motion of said contact element (10) within said groove duct (1 1 ); and

- a separator mechanism motion element (13) which houses said groove duct (1 1 ) and said motion drive (12) and enables operation of said separator contact bearing mechanism (2) by moving the contact element (10) upward or downward by rotating around its own axis by virtue of the motion driven by the motion transfer element (9).

2. The separator contact bearing mechanism (2) according to Claim 1 , characterized in comprising an insulator (3) which ensures the link between said main bus bar (4) and said contact element (10) and which insulates the contacts in said main bus bar (4) chamber.

3. The separator contact bearing mechanism (2) according to Claim 1 , characterized in comprising a breaker separator mechanism (5) which enables the operation and control of said separator contact bearing mechanism (2) by moving the said separator contact bearing mechanism (2) by means of the motion transfer element (9).