TECHNICAL FIELD
[0001] The present disclosure relates to the field of vacuum contactor unit.
More particularly the present disclosure relates to a racking mechanism or arrangement for the vacuum contactor unit.
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] Conventionally, medium voltage draw-out type vacuum contactor
unit (VCU) consist of control Voltage Transformer (CVT), which is used to
provide auxiliary supply to VCU by tapping main supply from Power circuit. The
CVT is generally placed in a stationery housing below VCU or in a separate
panel. But when this draw out type VCU is racked in to service from test position
then there is a relative motion between CVT and VCU. This causes relative
movement/displacement in power cable connecting to both CVT and VCU Arms.
This relative motion between VCU & CVT causing displacement of power cable
reduces reliability and results in many failures and flashover at site in past.
[0004] There is, therefore, a need of an improved racking mechanism for
the vacuum contactor unit (VCU) that is free from above drawbacks.
OBJECTS OF THE PRESENT DISCLOSURE
[0005] Some of the objects of the present disclosure, which at least one
embodiment herein satisfies are as listed herein below.
[0006] It is an object of the present disclosure to provide a racking
mechanism or arrangement for the vacuum contactor unit.
[0007] It is an object of the present disclosure to provide a racking
mechanism or arrangement for the vacuum contactor unit with no relative motion
between the VCU and CVT.

[0008] It is an object of the present disclosure to provide a racking
mechanism or arrangement for the vacuum contactor unit with increased
durability and reliability of electrical connections between the CVU and CVT.
[0009] It is an object of the present disclosure to provide a racking
mechanism or arrangement for the vacuum contactor unit which is cost effective.
[0010] It is an object of the present disclosure to provide a racking
mechanism or arrangement for the vacuum contactor unit which require less maintenance.
SUMMARY
[0011] The present disclosure relates to the field of vacuum contactor unit.
More particularly the present disclosure relates to a racking mechanism or arrangement for the vacuum contactor unit.
[0012] An aspect of the present disclosure pertains to a racking
arrangement comprising: a first section comprising a slidable first rack; a slidable second rack configured with the first section such that the second rack is slidable, in a first direction, with respect to the first section, wherein the second rack is configured with the first rack such that the first rack slides along with the second rack in the first direction.
[0013] In an aspect, the second rack may be slidably configured with
respect to the first section through any or combination of a first wheel arrangement, first guide rail arrangement, and first guide way arrangement. The first rack may include any or combination of a second wheel arrangement, second guide rail arrangement, and a second guide way arrangement such that the first rack slides along with the second rack. The first rack may be configured to accommodate a control voltage transformer. The second rack may be configured to accommodate a vacuum contactor unit. The control voltage transformer and the vacuum contactor unit may be electrically configured with the each other using one or more cables.
[0014] 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
[0015] 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.
[0016] 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.
[0017] FIG. 1 illustrates an exemplary front view of a rack system, in
accordance with an embodiment of the present disclosure.
[0018] FIG. 2 illustrates an exemplary rear view of the rack system, in
accordance with an embodiment of the present disclosure.
[0019] FIG. 3 illustrates an exemplary side view of the rack system in
service mode, in accordance with an embodiment of the present disclosure.
[0020] FIG. 4 illustrates an exemplary side view of the rack system in test
mode, in accordance with an embodiment of the present disclosure.
[0021] FIG. 5 illustrates an isometric view of the rack system, in
accordance with an embodiment of the present disclosure.
DETAILED DESCRIPTION
[0022] 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.
[0023] 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.
[0024] The present disclosure relates to the field of vacuum contactor unit.
More particularly the present disclosure relates to a racking mechanic or
arrangement for the vacuum contactor unit.
[0025] An aspect of the present disclosure pertains to a racking
arrangement comprising: a first section comprising a slidable first rack; a slidable
second rack configured with the first section such that the second rack is slidable,
in a first direction, with respect to the first section, wherein the second rack is
configured with the first rack such that the first rack slides along with the second
rack in the first direction.
[0026] In an aspect, the second rack may be slidably configured with
respect to the first section through any or combination of a first wheel
arrangement, first guide rail arrangement, and first guide way arrangement.
[0027] In an aspect, the first rack may include any or combination of a
second wheel arrangement, second guide rail arrangement, and a second guide
way arrangement such that the first rack slides along with the second rack.
[0028] In an aspect, first rack may be configured to accommodate a
control voltage transformer.
[0029] In an aspect, the second rack may be configured to accommodate a
vacuum contactor unit.
[0030] In an aspect, the control voltage transformer and the vacuum
contactor unit may be electrically configured with the each other using one or
more cables.

[0031] FIG. 1 illustrates an exemplary front view of a rack system, in
accordance with an embodiment of the present disclosure.
[0032] FIG. 2 illustrates an exemplary rear view of the rack system, in
accordance with an embodiment of the present disclosure.
[0033] FIG. 3 illustrates an exemplary side view of the rack system in
service mode, in accordance with an embodiment of the present disclosure.
[0034] FIG. 4 illustrates an exemplary side view of the rack system in test
mode, in accordance with an embodiment of the present disclosure.
[0035] FIG. 5 illustrates an isometric view of the rack system, in
accordance with an embodiment of the present disclosure.
[0036] As illustrated, a racking arrangement can include a first section 102
that can include a slidable first rack 104. The first rack 104 can be slidably configured with the first section 102 such that there is a relative motion between the first section 102 and the first rack 104. A slidable second rack 106 can be configured with the first section 102 such that the second rack 106 is slidable, in a first direction, with respect to the first section 102.The second rack 106 can be configured with the first rack 104 such that the first rack 104 slides along with the second rack 106 in the first direction.
[0037] In an aspect, the first rack 104 can be configured to accommodate a
control voltage transformer (CVT) 112. The second rack 106 can be configured to
accommodate a vacuum contactor unit (VCU) 116.The control voltage
transformer and the vacuum contactor unit may be electrically configured with the
each other using one or more cables 110.The first rack 104 and the second rack
106 can be coupled to each other using a vertical member 108. The vertical
member 108 can facilitates the combined movement of the first rack 104 and the
second rack 106, such that there is no relative motion between the first rack 104
and the second rack 106 and probability of cable 110 to get damaged or faulty due
to relative motion between the first rack 104 and the second rack 106 is reduced.
[0038] In an embodiment, the second rack 106 can be slidably configured
with respect to the first section 102 through any or combination of a first wheel arrangement 118, first guide rail arrangement, and first guide way arrangement.

The first rack 104 can be slidably configured with the first section using but without limiting to a second wheel arrangement 114, second guide rail arrangement, and a second guide way arrangement such that the first rack slides along with the second rack.
[0039] The present disclosure provides an improved racking mechanism
that can facilitate electric connection between different systems such that durability and reliability of cables for the electrical connections is not compromised due to relative motion between the electrically connected components, at the time of rack in from service to test position and vice-versa. This can increase reliability and durability of the electrical systems such as but not limited to vacuum contactor unit (VCU).
[0040] 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, or 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.
[0041] 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
[0042] The proposed invention provides a racking mechanism or
arrangement for the vacuum contactor unit.
[0043] The proposed invention provides a racking mechanism or
arrangement for the vacuum contactor unit with no relative motion between the
VCU and CVT.
[0044] The proposed invention provides a racking mechanism or
arrangement for the vacuum contactor unit with increased durability and
reliability of electrical connections between the CVU and CVT.
[0045] The proposed invention provides a racking mechanism or
arrangement for the vacuum contactor unit which is cost effective.
[0046] The proposed invention provides a racking mechanism or
arrangement for the vacuum contactor unit which require less maintenance.

We Claim:
1. A racking arrangement comprising:
a first section comprising a slidable first rack;
a slidable second rack configured with the first section such that the second rack is slidable, in a first direction, with respect to the first section, wherein the second rack is mechanically configured with the first rack such that the first rack slides along with the second rack in the first direction.
2. The racking arrangement as claimed in claim 1, wherein the second rack is slidably configured with respect to the first section through any or combination of a first wheel arrangement, first guide rail arrangement, and first guide way arrangement.
3. The racking arrangement as claimed in claim 1, wherein the first rack comprises any or combination of a second wheel arrangement, second guide rail arrangement, and a second guide way arrangement such that the first rack slides along with the second rack.
4. The racking arrangement as claimed in claim 1, wherein the first rack is configured to accommodate a control voltage transformer.
5. The racking arrangement as claimed in claim 4, wherein the second rack is configured to accommodate a vacuum contactor unit.
6. The racking arrangement as claimed in claim5, wherein the control voltage transformer and the vacuum contactor unit are electrically configured with the each other using one or more cables.