Claims:
1. A circuit breaker (2) comprising:
an actuator (4) coupled with a latch link (6) of an operating mechanism (1) of the circuit breaker (2);
an actuator holder (5) hinged to said actuator (4); and
an auxiliary switch (3) fixed at chassis of the circuit breaker (2) having a terminal (8) for normally open and normally closed contacts; wherein said auxiliary switch (3) is adapted to receive an actuation from said actuator (4) to provide at least a trip signal associated with a status of the circuit breaker to an external circuit in an abnormal condition.

2. The circuit breaker (2) as claimed in claim 1, wherein said trip signal is provided based on status of normally open and normally closed contacts position and operating mechanisms (1) position.

3. The circuit breaker (2) as claimed in claim 1, wherein the latch link (6) of said operating mechanism (1) is coupled to said actuator (4) through a rectangular extrusion (9).

4. The circuit breaker (2) as claimed in claim 1, wherein said actuator (4) comprises an extrusion (9) adapted to fit in the latch link (6) having a female slot (16), said fitment being adapted to track location of said latch link (6) which in turn depends on the status of said operating mechanism (1).

5. The circuit breaker (2) as claimed in claim 1, wherein said actuator (4) comprises a cylindrical hole (14), a rectangular extrusion (13) at one side, and an extrusion (9) on other side.

6. The circuit breaker (2) as claimed in claim 5, wherein:
said cylindrical hole (14) provides rotational axis to the actuator (4);
said rectangular extrusion (13) is coupled with the actuator holder (5) using said cylindrical hole (14); and
said extrusion (9) of the actuator (4) being used to change position of an auxiliary switch flapper (10) associated with the auxiliary switch (3).

7. The circuit breaker (2) as claimed in claim 5, wherein said switch flapper (10) position of the auxiliary switch (3) is adapted to decide said trip signal across the terminal (8) of auxiliary switch (3) given to said external circuit.

8. The circuit breaker (2) as claimed in claim 1, wherein said actuator holder (5) comprises a cylindrical hole (11) and a cylindrical extrusion (15).

9. The circuit breaker (2) as claimed in claim 9, wherein said cylindrical hole (11) is adapted to constraint the actuator (4) with a frame of the circuit breaker; and said cylindrical extrusion (15) being adapted to hold the actuator (4) such that an axis of rotation of the actuator (4) and a rotation axis of the latch link (12) of the operating mechanism (1) is substantially in same line.
, Description:TECHNICAL FIELD
[0001] The present disclosure relates to the field of circuit breaker, and more specifically relates to, a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to provide a signal (normally open or normally close) of circuit breaker state for TRIP due to any abnormal condition.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] Electrical switching apparatus, such as circuit breakers, provide protection for electrical systems from electrical fault conditions such as, for example, current overloads, short circuits, abnormal voltage and other fault conditions. Typically, circuit breakers include an operating mechanism which opens electrical contact assemblies to interrupt the flow of current trough the conductors of an electrical system in response to such fault conditions. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overcurrent, typically resulting from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.
[0004] Circuit breaker is a switching device designed to make, carry and break the circuit. A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overcurrent, typically resulting from an overload or short circuit. Circuit breakers are generally installed to protect equipment from overcurrent (than its rated current) situations, for example, when a short circuit or ground fault occurs in an electrical supply conductor. Upon the occurrence of any such overcurrent condition, electrical contacts inside circuit breaker get opened, and stop supply of electrical current to equipment. Designs for circuit breakers generally include accommodations for both high quiescent currents and high withstand currents. To maintain a high withstand current rating, the contacts must be locked closed at the current withstand rating and be able to withstand the large electrodynamics repulsion forces generated by the current flow. With the increase of industry size and automation, the requirement of protection devices has also increased.
[0005] The circuit breaker typically serves two basic purposes such as switching device and a protecting device. The circuit breaker as switching device: Switching On/Off during normal operating conditions for the purpose of operation and maintenance. The circuit breaker as protecting device: Tripping or Isolating by breaking the contacts interrupting the fault current during abnormal conditions such as short-circuit, overload and under voltage. They are designed for use in switchboards; control Panels, and combination starters in separate enclosures for effective single location distribution and control. In the most common type of installation, an operating mechanism is attached to the trip alarm contact actuator which intern connected to the auxiliary switch. The auxiliary switch gives the signal for breaker state i.e. ON OFF or TRIP.
a. ON: Contacts Closed and Mechanism Latched,
b. OFF: Contacts Open and Mechanism Latched and
c. Trip: Contacts Open and Mechanism De-latched
The actuator lever is connected in such a way that it shows the true trip position of circuit breaker. The operating mechanism operate the circuit breaker in the three stable states of ON, OFF and TRIP. The said arrangement has one position for ON and OFF state of the circuit breaker and another position for TRIP position of the circuit breaker. It should provide a clear indication of the current state of the internal contacts of the circuit breaker to the user and also provide the necessary electrical isolation and safety. The mechanism should be easy to assemble with then standard breaker configuration.
[0006] Efforts have been made in related art to address above stated problem by using circuit breaker with trip indicator. An example of such of the circuit breaker is recited in a United States Patent 3596219, entitled “Circuit breaker with trip indicator”. The patent discloses the circuit breaker has a trip lever which normally is latched by a latch mechanism in an untripped position wherein it maintains the contacts in condition to be opened and closed by a manual operator. The latch mechanism releases the trip lever only upon the occurrence of abnormal current conditions whereupon the contacts are opened and the trip lever is returned to a tripped position. An indicator strip of flexible, non-conducting material having an indicating portion at its outer end is carried by the trip lever. The strip is pushed thereby endwise so that the outer end of the strip engages an interior wall of the housing of the circuit breaker and is guided there along into alignment with a window in the wall, as the lever moves to tripped position, thereby indicating the tripped condition of the circuit breaker. The indicator strip flexes during its movement to and from trip indicating position to facilitate its proper movement. Another example of the circuit breaker is recited in a United States Patent 3742402 entitled “Circuit breaker with on off and trip indication”. The patent discloses the arrangement for indicating the condition of the circuit breaker comprises an electrical switch means compactly located within the circuit breaker case and responsive to the two distinctive movements of the circuit breaker linkage mechanism. The switch means is composed of two unitary auxiliary switches arranged side-by-side and contained within an auxiliary cavity of the case. The switch is located approximately intermediate the main terminals of the circuit breaker with the terminals of the switch means extending generally in the same direction as the main terminals. A first of said unitary switches indicates the normal on and off conditions of the circuit breaker while a second indicates the electrically tripped of condition. The first switch responds to the uncollapsed movement of the linkage mechanism, such as in manually moving the handle so as to open and close the contacts, whereas the second switch responds only to the movement of the contacts to the open position after the mechanism has been tripped, i.e., collapsed, on the occurrence of predetermined electrical conditions.
[0007] However in the conventional circuit breaker the existing mechanisms using a combination of complex actuator or linkages to convert the position of operating mechanism of the circuit breaker into auxiliary switch position. Further, the mechanisms are prone to jamming, incorrect indication and higher wear and tear due to large number of components or unreliable installations.
[0008] Whereas there is certainly nothing wrong with existing circuit breaker, nonetheless, there still exists a need to provide an efficient, effective, reliable, improved, cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers. Further, there is a need of a robust mechanism construction which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to provide a signal (normally open or normally close) of circuit breaker state for TRIP due to any abnormal condition. Furthermore, there is a need of low voltage current limiting circuit breaker which is commonly used to receive, supply, protect and isolate the current supply in an electrical circuit.
[0009] All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
[00010] In some embodiments, the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term “about”. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
[00011] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[00012] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[00013] Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all groups used in the appended claims.

OBJECTS OF THE INVENTION
[00014] An object of the present disclosure is to provide a low voltage current limiting circuit breaker which is commonly used to receive, supply, protect and isolate the current supply in an electrical circuit.
[00015] Another object of the present disclosure is to provide a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00016] Another object of the present disclosure is to provide a cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers.
[00017] Another object of the present disclosure is to provide an arrangement that may be used for switchgears having any number of poles/phases.
[00018] Another object of the present disclosure is to provide an actuator holder that hinged to the actuator in such a way that the rotation axis of actuator and latch link is in same line.
[00019] Another object of the present disclosure is to provide hardware free and adhesive free fixing of arrangement.

SUMMARY
[00020] The present disclosure relates to the field of circuit breaker, and more specifically relates to, a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to provide a signal (normally open or normally close) of circuit breaker state for TRIP due to any abnormal condition.
[00021] Embodiments of the present disclosure provide an efficient, effective, reliable, and improved circuit breaker. Further, a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00022] Accordingly, an aspect of the present disclosure relates to a circuit breaker. In an aspect, the circuit breaker can include an actuator, an actuator holder and an auxiliary switch. In another aspect, the actuator can be coupled with a latch link of an operating mechanism of the circuit breaker. In another aspect, the actuator holder can be hinged to said actuator (4). In another aspect, the auxiliary switch can be fixed at chassis of the circuit breaker having a terminal for normally open and normally closed contacts. In another aspect, auxiliary switch can be adapted to receive an actuation from said actuator to provide at least a trip signal associated with a status of the circuit breaker to an external circuit in an abnormal condition.
[00023] In an aspect, trip signal can be provided based on status of normally open and normally closed contacts position and operating mechanisms (1) position.
[00024] In an aspect, the latch link of said operating mechanism can be is coupled to said actuator through a rectangular extrusion.
[00025] In an aspect, actuator can include an extrusion adapted to fit in the latch link having a female slot, said fitment being adapted to track location of said latch link which in turn depends on the status of said operating mechanism.
[00026] In an aspect, actuator can include a cylindrical hole, a rectangular extrusion at one side, and an extrusion on other side.
[00027] In an aspect, said cylindrical hole can provide rotational axis to the actuator (4). In another aspect, said rectangular extrusion can be coupled with the actuator holder using said cylindrical hole. In another aspect, said extrusion of the actuator can be used to change position of an auxiliary switch flapper associated with the auxiliary switch.
[00028] In an aspect, switch flapper position of the auxiliary switch can be adapted to decide said trip signal across the terminal of auxiliary switch given to the external circuit.
[00029] In an aspect, the actuator holder can include a cylindrical hole and a cylindrical extrusion.
[00030] In an aspect, the cylindrical hole can be adapted to constraint the actuator with a frame of the circuit breaker; and said cylindrical extrusion can be adapted to hold the actuator such that an axis of rotation of the actuator and a rotation axis of the latch link of the operating mechanism is substantially in same line.
[00031] In contrast to the conventional circuit breaker, the present disclosure provides a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition. Further, in contrast to the existing circuit breaker, the present invention provides a mechanism or arrangement can be used in all kind transmission and distribution switchgears having various size, shapes and current carrying capacities. Furthermore, in contrast to the existing circuit breaker, the present invention provides hardware free and adhesive free fixing of arrangement.
[00032] Further, in contrast to the existing conventional circuit breaker, the present invention provides a cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers. This arrangement is used to give electrical signal (normally open or normally closed) based on the status of main contact position and operating mechanism (1) position. Furthermore, in contrast to the existing conventional circuit breaker, the present invention provides a robust mechanism which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00033] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[00034] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure, and wherein:
[00035] FIG. 1 illustrates a basic circuit breaker view where the actuator is installed, in accordance with an exemplary embodiment of the present disclosure.
[00036] FIG. 2 illustrates a cross section view of installation at trip condition, in accordance with another exemplary embodiment of the present disclosure.
[00037] FIG. 3 illustrates a cross section view of installation at not trip condition, in accordance with another exemplary embodiment of the present disclosure.
[00038] FIG. 4 illustrates an isometric view of operating mechanism, actuator and actuator holder, in accordance with another exemplary embodiment of the present disclosure.
[00039] FIG. 5 illustrates an isometric view of latch link, actuator and actuator holder coupling, in accordance with another exemplary embodiment of the present disclosure.
[00040] FIG. 6 illustrates an isometric view of auxiliary switch, actuator, actuator holder and latch link, in accordance with another exemplary embodiment of the present disclosure.

DETAILED DESCRIPTION
[00041] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure as defined by the appended claims.
[00042] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00043] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[00044] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. These exemplary embodiments are provided only for illustrative purposes and so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those of ordinary skill in the art. The invention disclosed may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Various modifications will be readily apparent to persons skilled in the art. The general principles defined herein may be applied to other embodiments and applications without departing from the scope of the invention. Moreover, all statements herein reciting embodiments of the invention, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure). Also, the terminology and phraseology used is for the purpose of describing exemplary embodiments and should not be considered limiting. Thus, the present invention is to be accorded the widest scope encompassing numerous alternatives, modifications and equivalents consistent with the principles and features disclosed. For purpose of clarity, details relating to technical material that is known in the technical fields related to the invention have not been described in detail so as not to unnecessarily obscure the present invention.
[00045] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[00046] All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g., “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[00047] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[00048] The present disclosure relates to the field of circuit breaker, and more specifically relates to, a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00049] Embodiments of the present disclosure provide an efficient, effective, reliable, and improved circuit breaker. Further, a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to provide a signal (normally open or normally close) of circuit breaker state for TRIP due to any abnormal condition
[00050] Accordingly, an aspect of the present disclosure relates to a circuit breaker. In an aspect, the circuit breaker can include an actuator, an actuator holder and an auxiliary switch. In another aspect, the actuator can be coupled with a latch link of an operating mechanism of the circuit breaker. In another aspect, the actuator holder can be hinged to said actuator. In another aspect, the auxiliary switch can be fixed at chassis of the circuit breaker having a terminal for normally open and normally closed contacts. In another aspect, auxiliary switch can be adapted to receive an actuation from said actuator to provide at least a trip signal associated with a status of the circuit breaker to an external circuit in an abnormal condition.
[00051] In an aspect, trip signal can be provided based on status of normally open and normally closed contacts position and operating mechanisms position.
[00052] In an aspect, the latch link of said operating mechanism can be is coupled to said actuator through a rectangular extrusion.
[00053] In an aspect, actuator can include an extrusion adapted to fit in the latch link having a female slot, said fitment being adapted to track location of said latch link which in turn depends on the status of said operating mechanism.
[00054] In an aspect, actuator can include a cylindrical hole, a rectangular extrusion at one side, and an extrusion on other side.
[00055] In an aspect, said cylindrical hole can provide rotational axis to the actuator (4). In another aspect, said rectangular extrusion can be coupled with the actuator holder using said cylindrical hole. In another aspect, said extrusion of the actuator can be used to change position of an auxiliary switch flapper associated with the auxiliary switch.
[00056] In an aspect, switch flapper position of the auxiliary switch can be adapted to decide said trip signal across the terminal of auxiliary switch given to the external circuit.
[00057] In an aspect, the actuator holder can include a cylindrical hole and a cylindrical extrusion.
[00058] In an aspect, the cylindrical hole can be adapted to constraint the actuator with a frame of the circuit breaker; and said cylindrical extrusion can be adapted to hold the actuator such that an axis of rotation of the actuator and a rotation axis of the latch link of the operating mechanism is substantially in same line.
[00059] In contrast to the conventional circuit breaker, the present disclosure provides a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition. Further, in contrast to the existing circuit breaker, the present invention provides a mechanism or arrangement can be used in all kind transmission and distribution switchgears having various size, shapes and current carrying capacities. Furthermore, in contrast to the existing circuit breaker, the present invention provides hardware free and adhesive free fixing of arrangement.
[00060] Further, in contrast to the existing conventional circuit breaker, the present invention provides a cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers. This arrangement is used to give electrical signal (normally open or normally closed) based on the status of main contact position and operating mechanism position. Furthermore, in contrast to the existing conventional circuit breaker, the present invention provides a robust mechanism which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00061] For the simplicity of understanding of the subject matter, following reference numerals are used for associated/corresponding feature/elements of the proposed circuit breaker:
1. Operating mechanism
2. Circuit breaker
3. Auxiliary switch
4. Actuator
5. Actuator holder
6. Latch link
7. Operating mechanism fixed plate
8. Terminal
9. Rectangular extrusion
10. Auxiliary switch flapper
11. Hole actuator holder
12. Hole actuator holder
13. One rectangular extrusion
14. Cylindrical hole
15. Cylindrical extrusion
16. Latch link female cut
[00062] In an embodiment, the present invention provides a cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers (2). This arrangement can be used to give electrical signal (normally open or normally closed) based on the status of main contact position and operating mechanism (1) position. This arrangement uses one actuator (4) that can be coupled with the latch link (6) of the operating mechanism (1), one actuator holder (5) used to provide hinged to the actuator, one auxiliary switch (3) fixed at the chassis of circuit breaker (2) having terminal (8) for normally open and normally closed contacts. The auxiliary switch can get actuation from the actuator which is coupled to the latch link of the operating mechanism. The auxiliary switch can give the signal of breaker status of trip signal to the external circuit under any abnormal condition. In an embodiment, actuator holder 5 can provide hinged to the actuator 4 in such a way that the rotation axis of actuator and latch link 6 is in same line. In another embodiment, the actuator 4is only guided by the latch link 6. The coupling is at other place than center of axis. The latch link 6 is not firmly fixed with the actuator 4.
[00063] The latch link of operating mechanism (1) can be coupled to the actuator (4) through the rectangular extrusion (9) as shown in FIG. 5. The rectangular extrusion (9) of actuator (4) can fit in the latch link (6) having one rectangular female (16) cut. The said rectangular cut (16) or extrusion (9) can be of any shape or size. The said fit is tight fit or clearance fit. This fitment can be used to track the location of latch link (6) which interns depends on the status of operating mechanism(1). Another component actuator holder (5) can be used to give a hinged to the actuator and hold it straight. The actuator holder can be kept in between the R and Y pole adjacent to the operating mechanism fixed plate (7). The said actuator holder can be constraint rigidly with the frame of circuit breaker (2). The holder constraint in such a way that it does not require any extra hardware or adhesive. The said actuator holder is kept between the poles constrained by operating mechanism fixing hardware and the cavity of pole cassette which provide rotational constraint.
[00064] The actuator holder (5) can be rectangular molded with one cylindrical hole (11) and one cylindrical extrusion (15). The said hole can be used to constraint the actuator with frame of circuit breaker. The said cylindrical extrusion (15) is to provide hinged to the actuator (4). The said extrusion (15) placed in such a way that the axis of rotation of actuator and the rotation axis of latch link (12) of the operating mechanism (1) is in same line. The actuator (4) can be molded with one cylindrical hole (14) one rectangular extrusion (13) at one side and another extrusion (9) on other side. The said cylindrical hole (14) is to provide rotational axis to the actuator (4). The actuator extrusion (13) forms male is coupled with the actuator holder (5) in that cylindrical hole (14) forms female. This coupling provides stability to the actuator. The said rectangular extrusion (13) of the actuator can be coupled with latch link female cut (16). The latch links guide the actuator through this extrusion (13). Another said extrusion (9) of the actuator is to use to change the position of auxiliary switch flapper (10). The flapper position (shown in FIG. 1 and FIG. 2) of the auxiliary switch (3) can decide the signal across the terminal (8) of auxiliary switch (3) given to external circuit. FIG. 6 shows all the said components.
[00065] FIG. 1 illustrates a basic circuit breaker view where the actuator is installed, in accordance with an exemplary embodiment of the present disclosure.
[00066] In an embodiment, the circuit breaker (2) can include an actuator (4) coupled with a latch link (6) of an operating mechanism (1) of the circuit breaker (2). In another embodiment, the actuator holder (5) can be hinged to said actuator (4). In another embodiment, an auxiliary switch (3) can be fixed at chassis of the circuit breaker (2) having a terminal (8) for normally open and normally closed contacts; wherein said auxiliary switch (3) can be adapted to receive an actuation from said actuator (4) to provide at least a trip signal associated with a status of the circuit breaker to an external circuit in an abnormal condition.
[00067] In an embodiment, trip signal can be provided based on status of normally open and normally closed contacts position and operating mechanisms (1) position.
[00068] In an embodiment, trip signal can be provided based on status of normally open and normally closed contacts position and operating mechanisms (1) position.
[00069] In an embodiment, the arrangement can be used to give electrical signal (normally open or normally closed) based on the status of main contact position and operating mechanism (1) position. This arrangement uses one actuator (4) that can be coupled with the latch link (6) of the operating mechanism (1), one actuator holder (5) used to provide hinged to the actuator, one auxiliary switch (3) fixed at the chassis of circuit breaker (2) having terminal (8) for normally open and normally closed contacts. The auxiliary switch can get actuation from the actuator which is coupled to the latch link of the operating mechanism. The auxiliary switch can give the signal of breaker status of trip signal to the external circuit under any abnormal condition.
[00070] FIG. 2 illustrates a cross section view of installation at trip condition, in accordance with another exemplary embodiment of the present disclosure.
[00071] FIG. 3 illustrates a cross section view of installation at not trip condition, in accordance with another exemplary embodiment of the present disclosure.
[00072] In an embodiment, the arrangement can be used to give electrical signal (normally open or normally closed) based on the status of main contact position and operating mechanism (1) position. This arrangement uses one actuator (4) that can be coupled with the latch link (6) of the operating mechanism (1), one actuator holder (5) used to provide hinged to the actuator, one auxiliary switch (3) fixed at the chassis of circuit breaker (2) having terminal (8) for normally open and normally closed contacts. The auxiliary switch can get actuation from the actuator which is coupled to the latch link of the operating mechanism. The auxiliary switch can give the signal of breaker status of trip signal to the external circuit under any abnormal condition.
[00073] FIG. 4 illustrates an isometric view of operating mechanism, actuator and actuator holder, in accordance with another exemplary embodiment of the present disclosure.
[00074] In an embodiment, actuator holder (5) can include the cylindrical hole (11) and a cylindrical extrusion (15). In another embodiment, cylindrical hole (11) can be adapted to constraint the actuator (4) with a frame of the circuit breaker; and said cylindrical extrusion (15) being adapted to hold the actuator (4) such that an axis of rotation of the actuator (4) and a rotation axis of the latch link (12) of the operating mechanism (1) is substantially in same line.
[00075] FIG. 5 illustrates an isometric view of latch link, actuator and actuator holder coupling, in accordance with another exemplary embodiment of the present disclosure. FIG. 5 illustrates the latch link of operating mechanism (1) can be coupled to the actuator (4) through the rectangular extrusion (9).
[00076] FIG. 6 illustrates an isometric view of auxiliary switch, actuator, actuator holder and latch link, in accordance with another exemplary embodiment of the present disclosure.
[00077] As shown in FIG. 6, the actuator holder (5) can be rectangular molded with one cylindrical hole (11) and one cylindrical extrusion (15). The said hole can be used to constraint the actuator with frame of circuit breaker. The said cylindrical extrusion (15) is to provide hinged to the actuator (4). The said extrusion (15) placed in such a way that the axis of rotation of actuator and the rotation axis of latch link (12) of the operating mechanism (1) is in same line. The actuator (4) can be molded with one cylindrical hole (14) one rectangular extrusion (13) at one side and another extrusion (9) on other side. The said cylindrical hole (14) is to provide rotational axis to the actuator (4). The actuator extrusion (13) forms male is coupled with the actuator holder (5) in that cylindrical hole (14) forms female. This coupling can provide stability to the actuator. The said rectangular extrusion (13) of the actuator is coupled with latch link female cut (16). The latch link can guide the actuator through this extrusion (13). Another said extrusion (9) of the actuator is to use to change the position of auxiliary switch flapper (10). The flapper position of the auxiliary switch (3) can decide the signal across the terminal (8) of auxiliary switch (3) given to external circuit.
[00078] The foregoing description of the specific embodiments will so fully reveal the general nature of the invention that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.
[00079] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C ….and N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc. The foregoing description of the specific embodiments will so fully reveal the general nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiments. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the scope of the appended claims.
[00080] While embodiments of the present disclosure have been illustrated and described, it will be clear that the disclosure is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the scope of the disclosure, as described in the claims.
[00081] In the description of the present specification, reference to the term "one embodiment," "an embodiments", "an example", "an instance", or "some examples" and the description is meant in connection with the embodiment or example described The particular feature, structure, material, or characteristic included in the present invention, at least one embodiment or example. In the present specification, the term of the above schematic representation is not necessarily for the same embodiment or example. Furthermore, the particular features structures, materials, or characteristics described in any one or more embodiments or examples in proper manner. Moreover, those skilled in the art can be described in the specification of different embodiments or examples are joined and combinations thereof.
[00082] All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
[00083] Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
[00084] The invention is not restricted to the details of the foregoing embodiment(s). The invention extends to any novel one, or any novel combination, of the features disclosed in this specification (including any accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
[00085] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE INVENTION
[00086] The present disclosure provides a low voltage current limiting circuit breaker which is commonly used to receive, supply, protect and isolate the current supply in an electrical circuit.
[00087] The present disclosure provides a mechanism or arrangement which uses a unique combination of operating mechanism, trip actuator, trip actuator holder and auxiliary switch arrangement to give signal (normally open or normally close) of circuit breaker state of TRIP due to any abnormal condition.
[00088] The present disclosure provides a cost effective and reliable arrangement to be used in switchgears mainly in molded case circuit breakers.
[00089] The present disclosure provides an arrangement that may be used for switchgears having any number of poles/phases.
[00090] The present invention provides an actuator holder that hinged to the actuator in such a way that the rotation axis of actuator and latch link is in same line.
[00091] The present disclosure hardware free and adhesive free fixing of arrangement.
[00092] The present disclosure provides a mechanism or arrangement which does not requires no rivets, crimping or any mechanical operation for assembling.
[00093] The present disclosure provides a robust cost effective design of molded actuators.
[00094] The present disclosure provides an ease of assembly due to lower number of components and no secondary operation.
[00095] The present disclosure provides a mechanism for higher mechanical endurance and abuse withstand capability.