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Support Arrangement For Current Transformer Of Gas Insulated Switchgear

Abstract: The present disclosure relates to a current transformer (200) to be configured around bushings (302) of a gas-insulated switchgear (300). The support arrangement includes a support plate (102), having a first plurality of holes (102-1), configures to place the current transformer (200) thereon. One or more stiffeners (104), having a second plurality of holes (104-1), fixed with a surface (110) of a tank of the gas-insulated switchgear (300). A plurality of vertical members (106) having a first end and a second end. The first end is removably coupled with the plurality of first holes (102-1) and the second end is removably coupled with the plurality of second holes (104-1).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
22 March 2022
Publication Number
05/2024
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application
Patent Number
Legal Status
Grant Date
2024-08-12
Renewal Date

Applicants

Schneider Electric India Private Limited
C-56, Mayapuri Industrial Area, Phase II, Delhi - 110064, India.

Inventors

1. PATIL, Yash Sunil
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.
2. RAJHANS, Rupesh Subhashrao
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.
3. SINGH, Rakesh Kumar
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.
4. BEHURA, Rajesh Kumar
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.
5. DACHEWAR, Kshitij Rajesh
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.
6. AHIRE, Pritesh Bhila
Schneider Electric India Private Limited, Gate No. 5, A10, ESE, Nagapur MIDC, Ahmednagar - 414111, Maharashtra, India.

Specification

Claims:1. A support arrangement for a current transformer (200) to be configured around bushings (302) of a gas-insulated switchgear (300), the support arrangement comprising:
a support plate (102), having a first plurality of holes (102-1), configures to place the current transformer (200) thereon;
one or more stiffeners (104), having a second plurality of holes (104-1), fixed with a surface (110) of a tank of the gas-insulated switchgear (300); and
a plurality of vertical members (106) having a first end and a second end, wherein the first end is removably coupled with the plurality of first holes (102-1) and the second end is removably coupled with the plurality of second holes (104-1).

2. The support arrangement as claimed in claim 1, wherein the first end comprises first threads, and removably coupled with the plurality of first holes (104-1) using first nuts (106-1).

3. The support arrangement as claimed in claim 1, wherein the second end comprises second threads, and removably coupled with the plurality of second holes (104-1) using second nuts (106-2).

4. The support arrangement as claimed in claim 1, wherein the plurality of first holes (102-1) are spaced apart by a first length equal to an axial length of the current transformer (200).

5. The support arrangement as claimed in claim 1, wherein the plurality of second holes (104-1) is spaced apart by the first length such that each hole

of the plurality of first holes (102-1) faces a corresponding hole of the plurality of the second holes (104-1).
, Description:TECHNICAL FIELD
[0001] The present disclosure relates to the field of gas-insulated switchgear. More particularly the present disclosure relates to a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear.

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] In switchgear, monitoring a current flowing through the circuit is very important. In faulty current condition current transformer (CT) gives a signal to relay and it trips the circuit breaker, so CT plays a very critical role in the operation of switchgear. This CT is generally mounted at the cable side bushing of switchgear. Ring-type CT is slid along the bushing and some sort of support arrangement is provided to keep the CT in its position. The bushing’s insulating part is generally made up of epoxy material. The load-carrying capacity of epoxy material is not so high, it gets cracked easily if any impact load comes on it. Any crack generated in epoxy leads to partial discharge leading to dielectric failure. So adequate supporting arrangement is a must for CT. This arrangement should be robust and should keep the CT firmly in its position. Also, the arrangement should not be complex, should be easy to assemble and dissemble.
[0004] There is, therefore, a need for an improved support arrangement for the current transformer, which is free from the above-discussed problems.

OBJECTS OF THE PRESENT DISCLOSURE
[0005] Some of the objects of the present disclosure, which at least one embodiment herein satisfy are as listed herein below.
[0006] It is an object of the present disclosure to provide a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is capable of taking the load of the current transformer without compromising bushings durability.
[0007] It is an object of the present disclosure to provide a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is easy to implement and use.
[0008] It is an object of the present disclosure to provide a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which facilitates easy electrical connection of the current transformer.
[0009] It is an object of the present disclosure to provide a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is cost-effective.
[0010] It is an object of the present disclosure to provide a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which requires less maintenance.

SUMMARY
[0011] The present disclosure relates to the field of gas-insulated switchgear. More particularly the present disclosure relates to a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear.
[0012] An aspect of the present disclosure pertains to a support arrangement for a current transformer to be configured around bushings of a gas-insulated switchgear. The support arrangement includes a support plate, having a first plurality of holes, configures to place the current transformer thereon. One or more stiffeners, having a second plurality of holes, are fixed with a surface of a tank of the gas-insulated switchgear. A plurality of vertical members has a first end and a second end, wherein the first end is removably coupled with the plurality of first holes and the second end is removably coupled with the plurality of second holes.
[0013] In an aspect, the first end may comprise first threads, and removably coupled with the plurality of first holes using first nuts.
[0014] In an aspect, the second end may comprise second threads, and removably coupled with the plurality of second holes using second nuts.
[0015] In an aspect, the plurality of first holes may be spaced apart by a first length equal to an axial length of the current transformer.
[0016] In an aspect, the plurality of second holes may be spaced apart by the first length such that each hole of the plurality of first holes faces a corresponding hole of the plurality of the second holes.
[0017] 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 DRAWINGS
[0018] 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.
[0019] In the figures, similar components and/or features may have the same reference label. Further, various components of the same type may be distinguished by following the reference label with a second label that distinguishes among the similar components. If only the first reference label is used in the specification, the description is applicable to any one of the similar components having the same first reference label irrespective of the second reference label.
[0020] FIG. 1 illustrates an exemplary representation of a front view of a support arrangement for the current transformer in a first orientation, in accordance with an embodiment of the present disclosure.
[0021] FIG. 2 illustrates an exemplary representation of an isometric view of a support arrangement for the current transformer in the first orientation, in accordance with an embodiment of the present disclosure.
[0022] FIG. 3 illustrates an exemplary representation of a bottom view of a support arrangement for the current transformer in the first orientation, in accordance with an embodiment of the present disclosure.
[0023] FIG. 4 illustrates an exemplary representation of a front view of a support arrangement for the current transformer in a second orientation, in accordance with an embodiment of the present disclosure.
[0024] FIG. 5 illustrates an exemplary representation of an isometric view of a support arrangement for the current transformer in the second orientation, in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION
[0025] 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.
[0026] 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.
[0027] The present disclosure relates to the field of gas-insulated switchgear. More particularly the present disclosure relates to a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear.
[0028] The present disclosure elaborates upon a support arrangement for a current transformer to be configured around bushings of a gas-insulated switchgear. The support arrangement includes a support plate, having a first plurality of holes, configures to place the current transformer thereon. One or more stiffeners, having a second plurality of holes, are fixed with a surface of a tank of the gas-insulated switchgear. A plurality of vertical members has a first end and a second end, wherein the first end is removably coupled with the plurality of first holes and the second end is removably coupled with the plurality of second holes.
[0029] In an embodiment, the first end can comprise first threads, and removably coupled with the plurality of first holes using first nuts.
[0030] In an embodiment, the second end can comprise second threads, and removably coupled with the plurality of second holes using second nuts.
[0031] In an embodiment, the plurality of first holes can be spaced apart by a first length equal to an axial length of the current transformer.
[0032] In an embodiment, the plurality of second holes can be spaced apart by the first length such that each hole of the plurality of first holes faces a corresponding hole of the plurality of the second holes.
[0033] FIG. 1 illustrates an exemplary representation of a front view of a support arrangement for the current transformer in a first orientation, in accordance with an embodiment of the present disclosure.
[0034] FIG. 2 illustrates an exemplary representation of an isometric view of a support arrangement for the current transformer in the first orientation, in accordance with an embodiment of the present disclosure.
[0035] FIG. 3 illustrates an exemplary representation of a bottom view of a support arrangement for the current transformer in the first orientation, in accordance with an embodiment of the present disclosure.
[0036] FIG. 4 illustrates an exemplary representation of a front view of a support arrangement for the current transformer in a second orientation, in accordance with an embodiment of the present disclosure.
[0037] FIG. 5 illustrates an exemplary representation of an isometric view of a support arrangement for the current transformer in the second orientation, in accordance with an embodiment of the present disclosure.
[0038] As illustrated, a support arrangement for a current transformer 200 to be configured around bushings 302 of a gas-insulated switchgear 300 can include a support plate 102. The support plate 102 can include a first plurality of holes 102-1 and can be configured to place the current transformer 200 thereon. One or more stiffeners 104 can be fixed with a surface 110 of a tank of the gas-insulated switchgear 300. The one or more stiffeners 104 can include a second plurality of holes 104-1. A plurality of vertical members 106 can include a first end and a second end.
[0039] In an embodiment, the first end of the plurality of vertical members 106 can be removably coupled with the plurality of first holes 102-1, and the second end of the plurality of vertical members 106 can be removably coupled with the plurality of second holes 104-1. The first end can include first threads, and the first end can be removably coupled with the plurality of first holes 102-1, by the first threads, using first nuts 106-1. The second end can include second threads, and the second end can be removably coupled with the plurality of second holes 104-1, by the second threads, using second nuts 106-2.
[0040] In an embodiment, the plurality of first holes 102-1 can be spaced apart by a first length equal to an axial length of the current transformer 200. The plurality of second holes 104-1 can be spaced apart by the first length such that each hole of the plurality of first holes 104-1 can face a corresponding hole of the plurality of the second holes 104-1 so that the support plate 102 can be kept horizontally. The current transformer can be fixed over the support plate 102 through a fixing arrangement such as but is not limited to bolts. The plurality of vertical members 106 can include but is not limited to hex studs.
[0041] In an embodiment, a first length of the plurality of vertical members can be selected based on an orientation of the current transformer put around the bushes 302. In one orientation the first length can be long enough to accommodate the current transformer between the support plate 102 and the one or more stiffeners 104 (FIGs. 1-3). In another orientation, the first length can be reduced as the current transformer is not required to be accommodated between the one or more stiffeners 104 and the support plate 102 (FIGs. 4-5). The fixing of the plurality of vertical members with the help of the first nuts 106-1 and the second nuts 106-2 can facilitate easy assembly and disassembly of the current transformer 200.
[0042] The proposed support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear is capable of taking the load of the current transformer without compromising bushings durability since the support plate 102 is fixed with the stiffeners 104 using the plurality of vertical members 106 and thus any possibility of deforming of the support plate is avoided. The support arrangement is easy to implement and use since the whole arrangement is fixed using the first nuts 106-1 and the second nuts 106-2. The support arrangement facilitates easy electrical connection of the current transformer by the first nuts 106-1. The support arrangement is cost-effective since no complex mechanical parts are used. The support arrangement requires less maintenance as no moving part is used in the proposed support arrangement.
[0043] Moreover, in interpreting the specification, 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, utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refer 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.
[0044] 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
[0045] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is capable of taking the load of the current transformer without compromising bushings durability.
[0046] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is easy to implement and use.
[0047] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which facilitates an easy electrical connection of the current transformer.
[0048] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which is cost-effective.
[0049] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, which requires less maintenance.
[0050] The proposed invention provides a support arrangement for a current transformer to be configured around bushings of gas-insulated switchgear, in which each current transformer has respective support arrangement that allows independent adjustment of different current transformers in the switchgear.

Documents

Application Documents

# Name Date
1 202211015833-STATEMENT OF UNDERTAKING (FORM 3) [22-03-2022(online)].pdf 2022-03-22
2 202211015833-REQUEST FOR EXAMINATION (FORM-18) [22-03-2022(online)].pdf 2022-03-22
3 202211015833-POWER OF AUTHORITY [22-03-2022(online)].pdf 2022-03-22
4 202211015833-FORM 18 [22-03-2022(online)].pdf 2022-03-22
5 202211015833-FORM 1 [22-03-2022(online)].pdf 2022-03-22
6 202211015833-DRAWINGS [22-03-2022(online)].pdf 2022-03-22
7 202211015833-DECLARATION OF INVENTORSHIP (FORM 5) [22-03-2022(online)].pdf 2022-03-22
8 202211015833-COMPLETE SPECIFICATION [22-03-2022(online)].pdf 2022-03-22
9 202211015833-Proof of Right [08-04-2022(online)].pdf 2022-04-08
10 202211015833-FER.pdf 2024-03-01
11 202211015833-FER_SER_REPLY [07-05-2024(online)].pdf 2024-05-07
12 202211015833-ENDORSEMENT BY INVENTORS [07-05-2024(online)].pdf 2024-05-07
13 202211015833-DRAWING [07-05-2024(online)].pdf 2024-05-07
14 202211015833-CORRESPONDENCE [07-05-2024(online)].pdf 2024-05-07
15 202211015833-COMPLETE SPECIFICATION [07-05-2024(online)].pdf 2024-05-07
16 202211015833-CLAIMS [07-05-2024(online)].pdf 2024-05-07
17 202211015833-PatentCertificate12-08-2024.pdf 2024-08-12
18 202211015833-IntimationOfGrant12-08-2024.pdf 2024-08-12

Search Strategy

1 202211015833E_27-02-2024.pdf

ERegister / Renewals

3rd: 22 Aug 2024

From 22/03/2024 - To 22/03/2025

4th: 22 Aug 2024

From 22/03/2025 - To 22/03/2026