FIELD OF DISCLOSURE
[0001] The present disclosure generally relates to the field of electrical devices. In particular, the present disclosure pertains to electrical shock prevention. More specifically, the present disclosure relates to an electrical safety device that ensures shock-free and safe working for any user in interaction with an electric circuit or any component/unit thereof.

BACKGROUND OF THE DISCLOSURE
[0002] The 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] Life today seems unimaginable without electricity and different appliance/devices/equipments (also known as and therefore hereinafter referred to as electrical units) run on electric power. Electricity along with its utility also has health and safety hazards. Prominent among these hazards are electric shocks that can severely affect a person such as in case of contact (mostly inadvertent) with an electrical unit, more particularly with a live wire (having a high potential) of the same, while the person is also in contact with ground, causing current to flow through his/her body. Such flow can be extremely dangerous, and even fatal.
[0004] Technically speaking, an electrical unit usually has three wires- live, neutral and ground (alternatively, earth) - of which the neutral and ground have zero potential while the live wire has a high potential as also mentioned before. So, whenever a person without proper insulation comes in contact, almost simultaneously, with live wire and ground, a high current of the order of 240V/120V (depending upon power supply in the region) manages to flow through the person’s body into the ground. There have been efforts in the past to address the instant issue but with low or minimum gains. Further, efforts to obtain shock-free functioning of an electrical unit/circuitry lead to undesired stepping down of output voltage thereof.
[0005] There is a need in the art to provide an electrical safety device that can obviate instances of shock from live wires to a user of an electrical circuit while checking undesired change in output power of the electric circuit. Notably, it would be a desirable feature in case the proposed safety device could deliver aforementioned benefits without requiring use of any relay to provide insulation for different applications, most commonly for households.
[0006] 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.
[0007] 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.
[0008] 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.
[0009] 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.
[00010] 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
[00011] Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as listed herein below.
[00012] It is an object of the present disclosure to provide for an Electrical Safety Device (ESD) that protects a person from an electric shock even if he/she has contact with a live wire.
[00013] It is another object of the present disclosure to provide for an Electrical Safety Device (ESD) as above that can be used across a complete household.
[00014] It is another object of the present disclosure to provide for an Electrical Safety Device (ESD) as above that is operatively configured with any or a combination of fuses, relays, Miniature Circuit Breakers (MCBs), Ammeters, Voltmeters and dielectric capacitors to provide further safety and indication of circuit parameters.

SUMMARY
[00015] The present disclosure relates to devices for electrical shock prevention. More specifically, the present disclosure relates to an electrical safety device that ensures shock-free and safe working for any user in interaction with an electric circuit or any component/unit thereof.
[00016] This summary is provided to introduce a selection of concepts in a simplified form to be further described below in the Detailed Description. This summary is not intended to identity key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.
[00017] In an aspect, present disclosure elaborates upon an electrical safety device (ESD) including: an alternating current (AC) input terminal; at least one dielectric capacitor connected to the AC input terminal; an isolation transformer wherein primary windings of the isolation transformer are connected to the at least one dielectric capacitor; and an alternating current (AC) output terminal connected to secondary windings of the isolation transformer.
[00018] In another aspect, the ESD can further include a switch selectively connecting a voltmeter to at least one of the primary windings and the secondary windings of the isolation transformer.
[00019] In yet another aspect, the ESD can further include an ammeter connected at the AC output terminal.
[00020] In an aspect, the ESD can provide step-up or step-down voltage at the AC output terminal.
[00021] In another aspect, the ESD can be switched on or off remotely.
[00022] In an aspect, the ESD can further include any or a combination of fuses, relays, Miniature Circuit Breakers (MCBs), and the at least one dielectric capacitor at any or a combination of input of the isolation transformer and output of the isolation transformer to provide further safety and indication of circuit parameters as required.
[00023] In another aspect, power can be supplied to the ESD through operative connections with any or a combination of a dielectric capacitor, a fuse and an MCB.
[00024] In yet another aspect, the ESD can include at least two dielectric capacitors, a fuse and an MCB operatively connected to the primary windings of the isolation transformer.
[00025] In an aspect, the ESD can be operatively implemented in a power circuit.
[00026] Various objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like features.

BRIEF DESCRIPTION OF DRAWINGS
[00027] 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:
[00028] FIG. 1 illustrates an exemplary representation of an electrical safety device (ESD) in accordance with an exemplary embodiment of the present disclosure.
[00029] FIG.2 elaborates upon functioning of an electrical safety device in accordance with an exemplary embodiment of the present disclosure.

DETAILED DESCRIPTION
[00030] 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 spirit and scope of the present disclosure as defined by the appended claims.
[00031] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[00032] Embodiments of the present invention include various steps, which will be described below. The steps may be performed by hardware components or may be embodied in machine-executable instructions, which may be used to cause a general-purpose or special-purpose processor programmed with the instructions to perform the steps. Alternatively, steps may be performed by a combination of hardware, software, and firmware and/or by human operators.
[00033] 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.
[00034] 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.
[00035] 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 spirit and 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.
[00036] Thus, for example, it will be appreciated by those of ordinary skill in the art that the diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating systems and methods embodying this invention. The functions of the various elements shown in the figures may be provided through the use of dedicated hardware as well as hardware capable of executing associated software. Similarly, any switches shown in the figures are conceptual only. Their function may be carried out through the operation of program logic, through dedicated logic, through the interaction of program control and dedicated logic, or even manually, the particular technique being selectable by the entity implementing this invention. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named element.
[00037] 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.
[00038] 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.
[00039] 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.
[00040] In an aspect, present disclosure elaborates upon an electrical safety device (ESD) including: an alternating current (AC) input terminal; at least one dielectric capacitor connected to the AC input terminal; an isolation transformer wherein primary windings of the isolation transformer are connected to the at least one dielectric capacitor; and an alternating current (AC) output terminal connected to secondary windings of the isolation transformer.
[00041] In another aspect, the ESD can further include a switch selectively connecting a voltmeter to at least one of the primary windings and the secondary windings of the isolation transformer.
[00042] In yet another aspect, the ESD can further include an ammeter connected at the AC output terminal.
[00043] In an aspect, the ESD can provide step-up or step-down voltage at the AC output terminal.
[00044] In another aspect, the ESD can be switched on or off remotely.
[00045] In an aspect, the ESD can further include any or a combination of fuses, relays, Miniature Circuit Breakers (MCBs), and the at least one dielectric capacitor at any or a combination of input of the isolation transformer and output of the isolation transformer to provide further safety and indication of circuit parameters as required.
[00046] In another aspect, power can be supplied to the ESD through operative connections with any or a combination of a dielectric capacitor, a fuse and an MCB.
[00047] In yet another aspect, the ESD can include at least two dielectric capacitors, a fuse and an MCB operatively connected to the primary windings of the isolation transformer.
[00048] In an aspect, the ESD can be operatively implemented in a power circuit.
[00049] Various objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like features.
[00050] FIG. 1 illustrates an exemplary representation of an electrical safety device in accordance with an exemplary embodiment of the present disclosure.
[00051] As used herein, a person having ordinary knowledge in the art would appreciate that “live wire” (high voltage 120-240V as per power supply in the region) is connected directly to generators of the electricity supplier, “neutral wire” (nearly zero volts) is to return the electricity to the generator after it has passed through the appliance. Further, the neutral wire completes the circuit. Moreover, “earth wire” usually does not carry electricity and serves as a safety measure. Put another way, if the appliance malfunctions or is inappropriately wired, then the earth wire may carry the same current as the live wire.
[00052] FIG. 1 illustrates an exemplary representation of electrical safety device (ESD) 100 in accordance to an embodiment of the present disclosure. As illustrated, AC input supplied to input terminal 102 is fed to one dielectric capacitor 112-1 that further supplies it to isolation transformer 120. A voltmeter 114 can be connected in parallel to the isolation transformer 120 and switch 118 as illustrated herein can be used to measure voltage across the isolation transformer. Other side (output side) of the transformer 120 can be connected to an ammeter 116 so as to gauge the amount of current flowing there through. Output can be supplied via ammeter116 to an electric load 110 that can be, for instance, a bulb or a heater or complete electric load of a household and the like, depending upon design of the ESD 100.
[00053] In an aspect, input terminal 102 can be connected to another dielectric capacitor 112-2, while both of these are in connection with a fuse 104 that is operatively connected to a MCB 106. The MCB 106 can be connected to primary winding of isolation transformer 120.
[00054] In an aspect, the present disclosure provides an electrical safety device (ESD) 100 that can include at least two dielectric capacitors (112-1 and 112-2), a fuse 104 and MCB 106 operatively connected to a primary winding of an isolation transformer 120. Further, a load 110 can be operatively connected to a secondary winding of the isolation transformer 120. Even when a person touches load 110 in such a manner that connection between load 110 and earth is made through the person, the person does not get a shock while the load 110 continues getting electric power as earlier from ESD 100. Moreover, the ESD 100 can include a voltmeter 114, switch 118 on the primary winding of the transformer 120 and an ammeter 116 connected to the secondary winding of the transformer 120. Switch 118 can as well be used to connect voltmeter 114 across secondary winding of isolation transformer 120 and thereby measure output voltage of the isolation transformer 120.
[00055] In an aspect, ESD 100 can have an AC supply that can pass through fuse 104 and MCB 106 so as to give rise to neutral and phase that further pass through a dielectric capacitor 122-2. In accordance with an implementation of the present disclosure, no voltage drop needs to be present in order to prevent shock to a human being on outlet side of ESD 100. This can be checked via output of dielectric capacitor 122-1 that can be connected to voltmeter 114 for measurement purpose, wherein the output level indicated will be same as input voltage level. Via ammeter116, output can be supplied from secondary windings of the isolation transfomer120. Since, the ESD 100 finds preferred application for a home connection, an isolation transformer 120 can be used and is lossless.
[00056] In an aspect, dielectric capacitor, as employed in implementation of the present disclosure, can have one input and one output only and thereby not used as a means to store charge.
[00057] In an embodiment, electrical safety device proposed can include two dielectric capacitors (of at least 50 micro Farad each), a bulb/load (as illustrated by FIG. 1) of any specification preferably in accordance with regional considerations such as power supply considerations, and isolation transformer in self- grounding configuration.
[00058] In an aspect, the present disclosure provides an ESD that protects a person from electric shock in case of contact with live wire of at least one appliance/electric load by presence of isolation transformer along with dielectric capacitors, fuse, MCB, switch and reading instruments such as ammeter and voltmeter.
[00059] FIG.2 elaborates upon functioning of an electrical safety device in accordance with an exemplary embodiment of the present disclosure.
[00060] As illustrated an ESD 100 can be connected at its input to an AC voltage source shown as 202 that is earthed as shown at 204. The ESD 100 can also be earthed, as shown, at 206. At its output, the ESD 100 can be connected to an electric load 208 (that can be a bulb, a heater or even complete household appliance load, depending upon the capacity design of ESD 100.
[00061] As shown, a person 210 can hold the bare wire of load 208 in his/her hand, while the person is earthed as shown at point 212. Yet, due to the ESD 100, person 210 will not get an electric shock while the load 208 will get full voltage and current it is designed for.
[00062] In an aspect, the ESD disclosed can be configured at main supply terminals of a household (for example, at the electricity meter input) and thereby offer shock protection at all the electric loads connected thereafter, in a similar manner as elaborated above. Further, as can be readily understood, the isolation transformer of the ESD disclosed can be of step-up or step-down as well, and accordingly voltage to the electric loads can be changed as required. Further, by using appropriate controller, relays, GSM modules etc. the ESD disclosed can be remotely switched on or off. All such variations are completely within the scope of the present disclosure.
[00063] Thus, the present disclosure provides electrical safety device that provides shock-free operation with circuitry of household, and checks output voltage etc., while resulting in overall improvement in the safety dynamics of the circuitry or any electrical unit thereof. Notably, it saves a common user from electric shocks by application of isolation transformer.
[00064] Although the proposed system has been elaborated as above to include all the main modules, it is completely possible that actual implementations may include only a part of the proposed modules or a combination of those or a division of those into sub-modules in various combinations across multiple devices that can be operatively coupled with each other, including in the cloud. Further the modules can be configured in any sequence to achieve objectives elaborated. Also, it can be appreciated that proposed system can be configured in a computing device or across a plurality of computing devices operatively connected with each other, wherein the computing devices can be any of a computer, a laptop, a smart phone, an Internet enabled mobile device and the like. All such modifications and embodiments are completely within the scope of the present disclosure.
[00065] As used herein, and unless the context dictates otherwise, the term “coupled to” is intended to include both direct coupling (in which two elements that are coupled to each other or in contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms “coupled to” and “coupled with” are used synonymously. Within the context of this document terms “coupled to” and “coupled with” are also used euphemistically to mean “communicatively coupled with” over a network, where two or more devices are able to exchange data with each other over the network, possibly via one or more intermediary device.
[00066] 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.
[00067] While some embodiments of the present disclosure have been illustrated and described, those are completely exemplary in nature. The disclosure is not limited to the embodiments as elaborated herein only and it would be apparent to those skilled in the art that numerous modifications besides those already described are possible without departing from the inventive concepts herein. All such modifications, changes, variations, substitutions, and equivalents are completely within the scope of the present disclosure. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims.

ADVANTAGES OF THE INVENTION
[00068] The present disclosure provides for an Electrical Safety Device (ESD) that protects a person from an electric shock even if he/she has contact with a live wire.
[00069] The present disclosure provides for an Electrical Safety Device (ESD) as above that can be used across a complete household.
[00070] The present disclosure provides for an Electrical Safety Device (ESD) as above that is operatively configured with any or a combination of fuses, relays, Miniature Circuit Breakers (MCBs), Ammeters, Voltmeters and dielectric capacitors to provide further safety and indication of circuit parameters.

CLAIMS:
1) An electrical safety device (ESD) comprising:
an alternating current (AC) input terminal;
at least one dielectric capacitor connected to the AC input terminal;
an isolation transformer wherein primary windings of the isolation transformer are connected to the at least one dielectric capacitor; and
an alternating current (AC) output terminal connected to secondary windings of the isolation transformer.

2) The ESD of claim 1 further comprising a switch selectively connecting a voltmeter to at least one of the primary windings and the secondary windings of the isolation transformer.

3) The ESD of claim 1 further comprising an ammeter connected at the AC output terminal.

4) The ESD of claim 1, wherein the ESD provides step-up or step-down voltage at the AC output terminal.

5) The ESD of claim 1, wherein the ESD is switched on or off remotely.

6) The ESD of claim 1, wherein the ESD device further includes any or a combination of fuses, relays, Miniature Circuit Breakers (MCBs), and the at least one dielectric capacitor at any or a combination of input of the isolation transformer and output of the isolation transformer to provide further safety and indication of circuit parameters as required.

7) The ESD of claim 1, wherein power is supplied to the ESD through operative connections with any or a combination of a dielectric capacitor, a fuse and an MCB.

8) The ESD of claim 1, wherein the ESD comprises at least two dielectric capacitors, a fuse and an MCB operatively connected to the primary windings of the isolation transformer.

9) An ESD as claimed in any one of the claims 1 to 8, wherein the ESD is operatively implemented in a power circuit.