Description:
TECHNICAL FIELD OF THE INVENTION
The present invention relates to the field of protection devices in general, more particularly to a withdrawable-unit (external accessories) of circuit breakers, involving a driving mechanism to plug-in and plug-out the breaker which reduces the effort to plug-in and plug-out the circuit breaker.

BACKGROUND OF THE INVENTION
Withdrawable Unit (Advanced Plug-in Module) is an arrangement which is used to connect or disconnect a breaker or MCCB to the main bus without unbolting or disturbing the termination. With the help of a mechanism, the breaker or MCCB is connected to the main supply. Unlike the conventional Plug-in module, the Advanced Plug-in uses a mechanism to drive the breaker to distinct positions. Also, unlike the conventional Plug-in Module which has two distinct positions: connected and disconnected position; the Advanced Plug-in has three distinct positions: connected, disconnected, and take away position. In the connect position, the MCCB is connected to the main supply. In the Disconnect position, the MCCB is disconnected from the supply but still engaged with the driving mechanism which prevents the user to take out the MCCB and protects the system from falling due to shock and vibration. In the Take-Away position, the user can withdraw the MCCB from the fixed kit. The MCCB is held in those three positions by a position lock mechanism which requires the user to acknowledge the lock before taking it to its next position.

It is very important to maintain the safety of the operator and other equipment’s protection in case of circuit breakers. Keeping these in mind, taking the breaker to distinct positions should be optimized and should also be locked at those distinct positions. It is desirable to have a mechanism which can minimize the human effort required to plug-in the breaker and helps in locking the breaker at distinct positions. The driving mechanism helps in taking the breaker from one position to another. In order to have an ergonomic operation, the driving mechanism optimizes the plug-in force. It uses a lever mechanism to have a good mechanical advantage.

Reference is made to JP5328458B2, relating to a Circuit Breaker Rack Mechanism. JP5328458B2 uses a rack screw which has to be rotated by means of a tool by the operator. The rack screw is coupled with a screw bearing. The rotary motion of the rack screw is converted to a linear motion by means of the screw bearing. The screw bearing slides over the chassis. The screw bearing is connected to various connecting plates which are assembled on a shaft hinged between the side plates by means of various connection pins. When the rack screw is rotated, the rotary motion is converted to linear motion in the screw bearing, which in turn, imparts another rotary motion in the shaft to which the connector plates are attached. Towards the side plates, the shaft has additional plates which are pivoted to cam plates. the cam plates have got grooves in them. When the shaft rotates, the additional plate rotates along with it imparting a rotational motion to the cam plate. The cam groove is designed in a way to transmit torque with maximum possible efficiency. With the rotation of the cam plate, the breaker gets racked in.

The present invention is different from JP5328458B2 in a way that we do not use a rack screw and directly plug in the breaker by means of a driver plate. The plug-in of the breaker in our invention is much faster. The present invention uses driving pins engaged with coupler units to plug-in or rack in the breaker.

Reference is made to EP0620625B1 disclosing a draw-out framework for a circuit breaker, which consists of a cam plate which has a groove along it. The cam groove cut out is designed in such a way so as to maximize the torque transmission. The cam plate has got two holders on the top of it for the user to hold and push the moving kit inwards with the objective of plugging in the breaker. This is achieved by means of guide pins which are riveted on to plates, which again are screwed with the breaker. When the breaker is placed in the cradle, the cam plate is rotated. This results in engagement of the guide pin with the cam plate. When we further move the cam plate, the guide move along with it, taking the breaker assembly with it, till it gets plugged-in.

Whereas the present invention is different from EP0620625B1 as the embodiments of the present invention do not use the guide pins to plug-in the breaker, rather uses a rear coupler mounted on the rear plates which is engaged with driving pins. The driving pins are mounted on the driving plate which is in turn rotated or pushed by the user to plug-in the breaker.

Yet another reference is made to EP2387054B1 disclosing an electrical switching apparatus, and levering assembly and position indicator assembly, which consists of a drive screw which has to be rotated by the user by means of a tool. This is coupled by a drive rack. As the drive screw rotates, the grooves cut out on the drive screw meshes with the drive rack. This causes the drive rack to move linearly. This drive rack is coupled to a pinion gear. the pinion gear is mounted on a drive shaft. As the drive rack moves linearly, the pinion gear rotates, rotating the drive shaft. Two more gears are assembled towards the end of the driving shaft. As the driving shaft rotates, the other two gears also rotate. These gears are again coupled with cam plates having teeth for engagement with the gears. The cam plate has groove cut on it. Thus, as the driving shaft rotates, the gears towards the end also rotate, which in turn, meshes with the cam plate and thus, rotating the cam plate about the pivot point. The guide pin in the breaker assembly engages with the cam groove and the breaker is plugged in or out.

Whereas the present invention does not use any gear trains for transmission of motion. The present invention uses a fork pin type mechanism which engages with rear coupler of the rear plate assembly of the moving kit to plug in and plug out the moving kit.

The cited prior art encounters the following drawbacks/disadvantages/limitations:
1. Screw Rod insertion mechanism takes time and is also tedious.
2. In fork type mechanisms, the forks are independent which results in tilting of the breaker due to asynchronous movement of the forks.

To overcome the above-mentioned drawbacks, there is a dire need for a fork driver mechanism which reduces the time required to plug-in and plug out the breaker which in turn reduces the downtime of replacing the circuit breaker, and the fork drivers are connected which results in synchronous movement of the forks.

SUMMARY OF THE INVENTION
The following disclosure presents a simplified summary of the invention in order to provide a basic understanding of some aspects of the invention. This summary is not an extensive overview of the present invention. It is not intended to identify the key/critical elements of the invention or to delineate the scope of the invention. Its sole purpose is to present some concept of the invention in a simplified form as a prelude to a more detailed description of the invention presented later.

The main object of present invention is to address and remove all the above limitations.

A first aspect of present invention relates to an advanced plug-in assembly for withdrawable circuit breakers, said assembly comprising:
a moving kit comprising:
a withdrawable circuit breaker operably coupled to a rear plate assembly and an actuator;
a fixed kit comprising:
a plurality of plug-in bases;
a left-side plate and a right-side plate assembly;
a lock shaft;
a driving mechanism for plug-in and plug-out of said withdrawable circuit breaker, hinged with the side plate assemblies, the driving mechanism comprising:
two driver plate assemblies coupled to a plurality of driver plate holders (8) to enable an operator to hold the driver plate for ease of operation;
a crank shaft;
a plurality of pulling links assembled on said crank shaft on either side; and
a plurality of pulling pins and a plurality of spacer pins operably hinged with the pulling links and assembled to the driver plates at both ends of the crank shaft, said spacer pins adapted to maintain a space between the pulling links and the driver plate assemblies;
a push button operably coupled to the driving mechanism, adapted to facilitate changing locking positions of the circuit breaker at three different positions,
wherein the plurality of pulling pins is adapted to engage with the rear plate assembly of the moving kit to drive it to various positions.

Other aspects, advantages, and salient features of the invention will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the invention.

BRIEF DESCRIPTION OF ACCOMPANYING DRAWINGS
The above and other aspects, features and advantages of the embodiments of the present disclosure will be more apparent in the following description taken in conjunction with the accompanying drawings, in which:

Figure 1 illustrates an Advanced Plug-in Take-away Position, according to an embodiment of the present invention.
Figure 2 illustrates an Advanced Plug-in Disconnected Position, according to an embodiment of the present invention.
Figure 3 illustrates a side view of an Advanced Plug-in Disconnected Position, according to an embodiment of the present invention.
Figure 4 illustrates an Advanced Plug-in Connected Position, according to an embodiment of the present invention.
Figures 5 illustrate a side view of an Advanced Plug-in Connected Position, according to an embodiment of the present invention.
Figure 6 illustrates a Fixed Kit, according to an embodiment of the present invention.
Figure 7 illustrates a Moving Kit, according to an embodiment of the present invention.
Figures 8-9 illustrate a Driving Mechanism and its corresponding parts, according to an embodiment of the present invention.
Figure 10 illustrates a Rear Plate Assembly, according to an embodiment of the present invention.
Figure 11 illustrates a sectional view of a Driving Mechanism in Take-Away Position, according to an embodiment of the present invention.
Figure 12 illustrates a sectional view of a Driving Mechanism in Disconnected Position, according to an embodiment of the present invention.
Figure 13 illustrates a sectional view of a Driving Mechanism in Connected Position, according to an embodiment of the present invention.

Persons skilled in the art will appreciate that elements in the figures are illustrated for simplicity and clarity and may not have been drawn to scale. For example, the dimensions of some of the elements in the figure may be exaggerated relative to other elements to help to improve understanding of various exemplary embodiments of the present disclosure. Throughout the drawings, it should be noted that like reference numbers are used to depict the same or similar elements, features, and structures.

DETAILED DESCRIPTION OF THE PRESENT INVENTION
The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding, but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular forms “a,” “an,” and “the” include plural referents unless the context clearly dictates otherwise. Thus, for example, a reference to “a component surface” includes a reference to one or more of such surfaces.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments belong. Further, the meaning of terms or words used in the specification and the claims should not be limited to the literal or commonly employed sense but should be construed in accordance with the spirit of the disclosure to most properly describe the present disclosure.

The terminology used herein is for the purpose of describing particular various embodiments only and is not intended to be limiting of various embodiments. As used herein, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising” used herein specify the presence of stated features, integers, steps, operations, members, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, members, components, and/or groups thereof. Also, Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.

The present disclosure will now be described more fully with reference to the accompanying drawings, in which various embodiments of the present disclosure are shown. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the various embodiments set forth herein, rather, these various embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the present disclosure. Furthermore, a detailed description of other parts will not be provided not to make the present disclosure unclear. Like reference numerals in the drawings refer to like elements throughout.

According to an embodiment, an advanced plug-in assembly for withdrawable circuit breakers, said assembly comprising:
a moving kit (1) comprising:
a withdrawable circuit breaker operably coupled to a rear plate assembly and an actuator;
a fixed kit (2) comprising:
a plurality of plug-in bases;
a left-side plate and a right-side plate assembly;
a lock shaft;
a driving mechanism (5) for plug-in and plug-out of said withdrawable circuit breaker, hinged with the side plate assemblies, the driving mechanism comprising:
two driver plate assemblies (9) coupled to a plurality of driver plate holders (8) to enable an operator to hold the driver plate (9) for ease of operation;
a crank shaft (10);
a plurality of pulling links (11) assembled on said crank shaft (10) on either side; and
a plurality of pulling pins (12) and a plurality of spacer pins (13) operably hinged with the pulling links (11) and assembled to the driver plates (9) at both ends of the crank shaft, said spacer pins (13) adapted to maintain a space between the pulling links (11) and the driver plate assemblies (9);
a push button (6) operably coupled to the driving mechanism, adapted to facilitate changing locking positions of the circuit breaker at three different positions,
wherein the plurality of pulling pins (12) is adapted to engage with the rear plate assembly of the moving kit (1) to drive it to various positions.

An Advanced Plug-In is an external accessory of circuit breaker which aids in plug-in and plug-out of the breaker. In case of conventional plug-in, the circuit breaker is directly plugged in by the operator manually without using any specific mechanism. The operator as a result has to apply considerable amount of force to plug-in the breaker. The conventional plug-in has two positions which are connected and disconnected, respectively. In an Advanced Plug-In, a driving mechanism (5) helps the operator to plug-in the breaker. It reduces the effort required by the operator to plug-in the breaker. It is important to consider the safety of the operator and should help the operator identify the position of the breaker. A distinct position lock locks the breaker at three different positions i.e., connected, disconnected and take-away position. In the Connected position, the breaker is completely plugged in. In the Disconnected position, the breaker is disconnected from the supply but is engaged with the driving mechanism (5). This ensures that the breaker does not fall off during any shock or vibration or under any unforeseen circumstances. In the Take-away position, the operator can withdraw the breaker. In order to move to distinct positions, operator acknowledgement is required. The operator has to press a push button (6) to acknowledge that he wishes to change the position of the breaker. By pressing the push button (6), the position lock gets unlocked, and the user can drive the breaker to the next position.

According to an embodiment, the Advanced Plug-In consists of a Moving kit (1) and a Fixed kit (2). The Moving kit (1) consists of the circuit breaker, a rear plate assembly and an actuator. The rear plate assembly consists of left and right rear plates to which guide pins (3) are assembled. The two rear plates are connected by means of an integrator. The integrator consists of a safety lock which prevents plug-out of the Moving kit (1) when the circuit breaker is switched on. The rear plates also consist of two rear couplers (14) which engage with the driving mechanism (5) to plug-in the Moving kit (1). The Fixed kit (2) consists of two plug-in bases, a left and a right side-plate assembly, a lock shaft and the driving mechanism (5). The plug-in bases consist of the jaw contacts, covered by means of safety shutters which open during the plug-in operation. The left side plate assembly consists of the left side plate having the aux switch mounted on it. The right side-plate assembly consists of the right side-plate to which the position lock is assembled. The right side-plate has got a hole through which the lock pin protrudes and locks the driving mechanism (5). The side plates have got slots in them which guide the moving kit (1) into it by virtue of the guide pins (3) mounted on the rear plates. The driving mechanism (5) is hinged with the side plates.

The driving mechanism (5) consists of two driver plate assemblies, a cam shaft, two pulling links (11), two pulling pins and two spacer pins (13). The driver plate assembly has holders assembled to it which enables the operator to hold the driver plate (9) for ease of operation. The driver plate (9) is designed in such a way that dome rivets are assembled to it at certain locations along with three distinct holes, with which the lock pin is engaged. The two pulling links (11) are first assembled with the cam shaft. The spacer pins (13) and the pulling pins are then hinged with the pulling links (11) and assembled to the driver plates (9) at both ends of the cam shaft. The spacer pins (13) make the mechanism sturdy and robust. It also supports and maintains the space between the pulling link (11) and the driver plate (9).

When the unit is in the take-away position, the driving mechanism (5) is facing out towards the operator and is locked by means of the lock pin of the position lock from the right side-plate assembly. The lock pin is engaged with the hole on the driver plate (9) which is farthest away from the operator. The unit is ready to accept the moving kit (1) into it. Once the push button (6) of the position lock is pressed, the lock pin slides back thus disengaging with the driver plate (9). This makes the driver plate (9) free to rotate.

As we rotate the driver plate (9) in anti-clockwise direction from the take-away position to the disconnected position, the entire driving mechanism (5) also rotates. Midway while rotating, the dome rivet in the driver plate (9) comes in contact with the lock pin and that makes the position lock capable of locking the driving mechanism (5) at the next available location. As the driving mechanism (5) rotates, the pulling pins (12) also rotates and at the disconnected position engages with the rear coupler (14) in the moving kit (1). This makes sure that the moving kit (1) is engaged with the fixed kit (2) via the driving mechanism (5) which makes it capable to withstand shock and vibration at the disconnected position without the risk of the moving kit (1) falling. This provides additional safety to the operator.

In order to take the breaker from disconnected position to the connected position or to plug in the breaker, the user again has to acknowledge that he wants to plug-in the breaker by pressing the push button (6), which unlocks the driving mechanism (5) by pushing back the lock pin. Then, as the user rotates the driver plate (9) anticlockwise, the entire driving mechanism (5) rotates. Thus, the pulling pins (12) also rotate about the crank shaft (10) and as it is engaged with the rear coupler (14); the rotation of the driving mechanism (5) pushes the moving kit (1) towards the fixed kit (2). The rear couplers (14) are driven by the pulling pins (12). In this way the motion is transmitted from the driving mechanism (5) to the moving kit (1) till it gets finally plugged in or is in connected position. In the connected position the driving mechanism (5) is again locked by the position lock.

In order to plug out the breaker, the user has to acknowledge that he wants to plug out the breaker by pressing the push button (6) which unlock the position lock. The user then rotates the driver plate (9) in the clockwise direction which rotates the driving mechanism (5) along with it. This results in the pulling pins (12) interacting with the top cam surface of the rear coupler (14). This, then transmits the clockwise rotation of the driving plate to linear translation of the moving kit (1). Then, the driving mechanism (5) gets locked in the disconnected position. In similar fashion as above, the user again has to press the push button (6) to unlock the position lock and rotate the driver plate (9) clockwise which takes it to the take-away position. The user can safely remove the moving kit (1) from the fixed kit (2) in the take-away position.

In order to plug-in the moving kit (1) to the fixed kit (2), the user has to first align the guide pins (3) of the moving kit (1) to the rail guides (4) of the fixed kit (2). The driving mechanism (5) has to be in take-away position for the user to be able to insert the moving kit (1). In order to unlock the driving mechanism (5), the user has to press the push button (6) mounted on the right-side plate (7). The driving mechanism (5) is hinged to the side plates of the fixed kit (2). Then, the user must hold the driver plate holder (8) and rotate the driver plates (9) towards the fixed kit (2). During this operation, the push button (6) will pop out and the driving mechanism (5) will get locked again. This is the disconnected position. In this position, the unit is not connected to main supply but is engaged with the driving mechanism (5). The driving mechanism (5) consists of driver plates (9), driver plate holder (8), crank shaft (10), pulling link (11), pulling pin (12) and spacer pin (13). The pulling pins (12) engage with the rear coupler (14) of the moving kit (1) and drives it to various positions. In the take-away position, the pulling pins (12) are totally separated from the rear couplers (14). This enables the user to pull and push the moving kit (1) into the fixed kit (2). In the disconnected position, the pulling pins (12) are just engaged with the rear couplers (14). This ensures that the moving kit (1) is engaged with the fixed kit (2) via the driving mechanism (5). This protects the unit from shock and vibration and does not let the unit fall. Now, again, in order to unlock the driving mechanism (5), the user has to press the push button (6), and again rotate the driving mechanism (5) by the driver plate holders (8) and stop when the driving mechanism (5) is locked again which is indicated by a ‘Click’ sound. The moving kit (1) is plugged-in by means of the pulling pins (12) and the rear couplers (14). During plug-out operation as well, the pulling pins (12) pull the moving kit (1) via the upper surface of the rear coupler (14). The same locking and unlocking operation sequence is followed as in the case during plug-in operation.

According to an embodiment, the Moving Kit (1) is loaded to the Fixed Kit (2) by aligning with the rail guides (4) and guide pins (3) and slid through the cradle. The Moving Kit (1) is now in the Take-Away Position. The driving mechanism (5) has no contact with the Moving Kit (1) in this position. The push button (6) lock mechanism is fixed to the right-side plate (7). In order to take the Moving Kit (1) to the next position i.e., Disconnected Position, the operator has to press the Push Button (6) and acknowledge to unlock the driving mechanism (5). The user shall hold the driving mechanism (5) by means of the driver plate holders (8) and rotate the mechanism towards the Fixed Kit (2) till the driving mechanism (5) gets locked in the disconnect position. During the operation, the push button (6) pops out. As the driving mechanism (5) is rotated by means of the driver plate holders (8), the driver plate (9) also rotates along with it which drives the crank shaft (10). This entire rotation of the driving mechanism (5) rotates the pulling pins (12) as well which engages with the rear couplers (14) if the Moving Kit (1). In disconnected position, the driving mechanism (5) is thus engaged with the moving kit (1). In order to take the Moving Kit (1) to the next position i.e., Connected Position, the operator has to press the push button (6) and acknowledge to unlock the driving mechanism (5). The user shall hold the driving mechanism (5) by means of the driver plate holders (8) and rotate the mechanism towards the Fixed Kit (2) till the driving mechanism (5) gets locked in the disconnect position. During the operation, the push button (6) pops out. As the driving mechanism (5) is rotated by means of the driver plate holders (8), the driver plate (9) also rotates along with it which drives the crank shaft (10). This entire rotation of the driving mechanism (5) rotates the pulling pins (12) as well which pushes the rear couplers (14) in turn pushing the entire moving kit (1) towards the fixed kit (2). During this process, the plugs of the moving kit (1) get engaged with the jaws of the fixed kit (2) and the driving mechanism (5) is also locked in the Connected Position. In order to plug-out the Moving Kit (1), one has to press the push button (6), hold the driving mechanism (5) by means of the driver plate holders (8) and rotate the mechanism away from the fixed kit (2). During this process, the pulling pins (12) engage with the top cam surface of the rear couplers (14) and pulls the moving kit (1) away from the fixed kit (2). The driving mechanism (5) gets locked in the disconnected position. The push button (6) is pressed again to unlock the driving mechanism (5) and is rotated away from the fixed kit (1) by means of driver plate holders (8). In this position i.e., take-away position, the moving kit (1) can be withdrawn from the fixed kit (2).

Some of the non-limiting advantages of the Pin – Handle Maneuvered Driving Mechanism for Plug-In and Plug-out of Withdrawable Circuit Breakers are:

1. Reduce the force of plug-in and make the entire plug-in process easy.
2. Enhance the safety of the operator during plug-in and plug-out operations.
3. Allows the user to keep the breaker in still condition without the risk of it falling (disconnected position).
4. Allows ergonomic plug-in and plug-out operation of withdrawable circuit breakers.
5. Dependent rotation of driving handles of driving mechanism.
6. Pin-Handle Sliding mechanism for plug in and plug -out operation of withdrawable circuit breakers.
7. User Acknowledgement for unlocking driving mechanism.
8. Avoiding toppling of moving kit from fixed kit improves operator safety.

Although a Pin – Handle Maneuvered Driving Mechanism for Plug-In and Plug-out of Withdrawable Circuit Breakers has been described in language specific to structural features, it is to be understood that the embodiments disclosed in the above section are not necessarily limited to the specific methods or devices described herein. Rather, the specific features are disclosed as examples of implementations of a Pin – Handle Maneuvered Driving Mechanism for Plug-In and Plug-out of Withdrawable Circuit Breakers.

List of components:

1. Moving Kit
2. Fixed Kit
3. Guide pins
4. Rail Guides
5. Driving Mechanism
6. Push Button
7. Right Side Plate
8. Driver Plate Holder
9. Driver Plate
10. Crank Shaft
11. Pulling Link
12. Pulling Pin
13. Spacer Pin
14. Rear Coupler

, Claims:
1. An advanced plug-in assembly for withdrawable circuit breakers, said assembly comprising:
a moving kit (1) comprising:
a withdrawable circuit breaker operably coupled to a rear plate assembly and an actuator;
a fixed kit (2) comprising:
a plurality of plug-in bases;
a left-side plate and a right-side plate assembly;
a lock shaft;
a driving mechanism (5) for plug-in and plug-out of said withdrawable circuit breaker, hinged with the side plate assemblies, the driving mechanism comprising:
two driver plate assemblies (9) coupled to a plurality of driver plate holders (8) to enable an operator to hold the driver plate (9) for ease of operation;
a crank shaft (10);
a plurality of pulling links (11) assembled on said crank shaft (10) on either side; and
a plurality of pulling pins (12) and a plurality of spacer pins (13) operably hinged with the pulling links (11) and assembled to the driver plates (9) at both ends of the crank shaft, said spacer pins (13) adapted to maintain a space between the pulling links (11) and the driver plate assemblies (9);
a push button (6) operably coupled to the driving mechanism, adapted to facilitate changing locking positions of the circuit breaker at three different positions,
wherein the plurality of pulling pins (12) is adapted to engage with the rear plate assembly of the moving kit (1) to drive it to various positions.

2. The assembly as claimed in claim 1, wherein the driving mechanism is a fork pin type mechanism operably engaged with a plurality of rear couplers of a rear plate assembly of the moving kit to plug in and plug out the moving kit.

3. The assembly as claimed in claim 1, wherein different locking positions of the circuit breaker are connected, disconnected and take-away position,
wherein the breaker is completely plugged in the connected position,
wherein the breaker is disconnected from the supply but operably engaged with the driving mechanism (5) in the disconnected position,
wherein the breaker is withdrawable in the take-away position,
wherein in the take-away position, the pulling pins (12) are totally separated from the rear couplers (14) to enable the user to pull and push the moving kit (1) into the fixed kit (2), and in the disconnected position, the pulling pins (12) are engaged with the rear couplers (14) to enable the moving kit (1) to be engaged with the fixed kit (2) via the driving mechanism (5).

4. The assembly as claimed in claim 1, wherein the driver plate assembly (9) comprises: a plurality of dome rivets is assembled to said assembly (9) at certain locations along with three distinct holes, with which a lock pin is engaged.

5. The assembly as claimed in claim 1, wherein the rear plate assembly comprises:
a plurality of left rear plates and right rear plates having a plurality of outwardly protruding guide pins (3) and a plurality of rear couplers (14) to engage with the driving mechanism (5) to plug-in the moving kit (1), said rear plates connected by means of an integrator, the integrator consisting of a safety lock adapted to prevent plug-out of the moving kit (1) when the circuit breaker is switched on,
wherein the plurality of guide pins (3) of the moving kit (1) are adapted to be engaged in a plurality of rail guides (4) of the fixed kit.

6. The assembly as claimed in claim 1, wherein the plurality of plug-in bases consists of jaw contacts, covered by means of safety shutters adapted to open during the plug-in operation,
wherein the left-side plate assembly consists of a left side plate having an aux switch mounted on it, and the right side-plate assembly consists of a right side-plate assembled with a position lock and the push button (6),
wherein the right-side plate assembly has a hole through which the lock pin protrudes and locks the driving mechanism (5), wherein the side plates have slots in them to guide the moving kit (1) into it by virtue of the guide pins (3) mounted on the rear plates.

7. The assembly as claimed in claim 1, wherein when the plug-in is in the take-away position, the driving mechanism (5) is facing out towards the operator and locked by means of a lock pin of the position lock from the right side-plate assembly, wherein the lock pin is engaged with a hole on the driver plate assembly (9) which is farthest away from the operator, and the lock pin slides back when the push button (6) of the position lock is pressed, to disengage with the driver plate (9), and make the driver plate (9) free to rotate.

8. The assembly as claimed in claim 1, wherein the driver plate (9) is adapted to rotate in an anti-clockwise direction from the take-away position to the disconnected position, to synchronously rotate the entire driving mechanism (5),
wherein midway while rotating, the dome rivets in the driver plate assembly (9) is in contact with the lock pin and makes the position lock capable of locking the driving mechanism (5) at the next available location,
wherein the rotation of the driving mechanism (5) rotates the plurality of pulling pins (12) and at the disconnected position the driving mechanism (5) engages with the rear couplers (14) in the moving kit (1), to engage the moving kit (1) with the fixed kit (2) to withstand any shock and vibration at the disconnected position.

9. The assembly as claimed in claim 1, wherein the push button (6) is adapted to change the breaker position from the disconnected position to the connected position by unlocking the driving mechanism (5) by pushing back the lock pin,
wherein the driver plate (9) is adapted to rotate in an anti-clockwise direction to synchronously rotate the entire driving mechanism (5), the pulling pins (12) about the crank shaft (10),
wherein the rotation of the driving mechanism (5) pushes the moving kit (1) towards the fixed kit (2), and the rear couplers (14) are adapted to be driven by the pulling pins (12),
wherein the motion is transmitted from the driving mechanism (5) to the moving kit (1) till the breaker is in connected position.

10. The assembly as claimed in claim 1, wherein the push button (6) is adapted to change the breaker position to the disconnected postion by unlocking the driving mechanism (5) by pushing back the lock pin,
wherein the driver plate (9) is adapted to rotate in a clockwise direction to synchronously rotate the entire driving mechanism (5), and transmit the clockwise rotation of the driving plate to a linear translation of the moving kit (1),
wherein the rotation of the driving mechanism (5) gets locked in the disconnected position,
wherein the push button (6) is further adapted to unlock the position lock and rotate the driver plate (9) clockwise to the take-away position, to safely remove the moving kit (1) from the fixed kit (2).